Mechanical Contractors servicing Washington D.C., Maryland, N. Virginia - 337 Companies Found

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Shapiro & Duncan

  • Automatic Transfer Switches
  • Hetex
  • Octagon
  • Pre-Construction Management
  • Engineering
  • BIM-Bldg. Information Modeling
  • Prefabrication
  • Drafting & Design Division
  • Drafting & Design Service
  • Automated Control Systems
  • HVAC Systems
  • HVAC & Appliance Repair/Install
  • + More
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    Capital Energy Equipment, Inc.

    Vienna, VA, 22180    Locations  
    (703) 437-8161   
    Contacts   Website Lic: 2701018970
    • HVAC
    • HVAC Systems
    • Dehumidifier
    • Herrmidifier
    • Space-Ray Parts
    • + More
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      M & M Welding & Fabricators, Inc.

      Mount Airy, MD, 21771    Locations  
      (301) 948-9330   
      Contacts   Website Lic: 2701018970
      • Breeching Repairs & Installation
      • Feedwater Blowdown Systems
      • Mechanical Pipe Installation
      • Refractory Repair & Installation
      • Unfired Pressure Vessel Repair
      • Fire Sprinkler
      • HVAC Construction and Service
      • Fire Suppression Systems
      • Fire Standpipe System
      • + More
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        Diversified HVAC Services, Inc.

        Gaithersburg, MD, 20879    Locations  
        (301) 417-9772   
        Contacts   Website Lic: 2701018970
        • Boilers
        • Chillers
        • Circulating/Loop/ Tower Pumps
        • Control Systems
        • Cooling Towers
        • Ductless Split Systems
        • Exhaust Fans
        • Commercial Equipment
        • Preventative Maintenance
        • + More
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          Advanced Building Services, Inc.

          Sterling, VA, 20166    Locations  
          (703) 661-4280   
          Contacts   Website Lic: 2705055530
          • Air Conditioning Systems
          • Air Handling Units
          • Boiler Repairs
          • Commercial HVAC Service
          • Environmental Control Systems
          • Equipment Inspections
          • Hot Water/Steam Boilers
          • Maintenance/Replacement
          • On-Site Builders/Engineers
          • + More
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            American Boiler, Inc.

            Alexandria, VA, 22312    Locations  
            (703) 941-3200   
            Contacts   Website Lic: VA 2705036703A
            • Commercial Boilers
            • Heating
            • Air Conditioning
            • Plumbing Repairs & Installation
            • Infrared Technology
            • Pipe Insulation
            • Backflow Prevention
            • Laser Alignment
            • Combustion Analysis
            • + More
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              Hugee Corporation

              Washington, DC, 20002    Locations  
              (202) 636-1041   
              Contacts   Website Lic: D1 002689
              • Heating & A/C Services
              • Heating & Air Conditioning
              • Heating Repairs
              • Control Wiring
              • Cooling Systems
              • Cooling Tower Accessories
              • Cooling Tower Controllers
              • Cooling Tower Treatment
              • Access Doors & Panels
              • + More
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                Dave's Mechanical Services, LLC

                Frederick, MD, 21701    Locations  
                (301) 401-2780   
                Contacts   Website Lic: #01-11074
                • HVAC Services Replacement
                • Heating Installations
                • Air Conditioning Installations
                • Boilers
                • Compressors
                • Plumbing Installations & Service
                • + More
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                  Remington Construction

                  Vienna, VA, 22182    Locations  
                  (703) 992-0909   
                  Contacts   Website Lic: #01-11074
                  • Construction Services
                  • HVAC
                  • Plumbing
                  • Garage and Deck Coatings
                  • Exterior Building Services
                  • + More
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                    Zagros Heating & Air Cond. LLC

                    Sterling, VA, 20164    Locations  
                    (703) 437-9484   
                    Contacts   Website Lic: 2705114159
                    • HVAC Repair & Installation
                    • Heating & Cooling Systems
                    • New Construction & Remodels
                    • Air Conditioners
                    • Thermostats
                    • Evaporator Coils
                    • Control Valves
                    • Heat Pumps
                    • Blower Fans
                    • + More
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                      Krick Plumbing & Heating, Inc.

                      Hyattsville, MD, 20781    Locations  
                      (301) 927-5284   
                      Contacts   Website Lic: 2705114159
                      • Heating Contractors
                      • Mechanical Contractors
                      • Plumbing Contractors
                      • Design-Build
                      • Insulation and Fire Safing
                      • Solar Services
                      • Pipe Insulation
                      • Sheet Metal Installation
                      • Sheet Metal Fabrication
                      • + More
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                        Mason Mechanical Services LLC

                        • Heating & Cooling
                        • Chiller Service
                        • HVAC Controls
                        • Pneumatic
                        • Digital
                        • Analog
                        • Data Center Cooling
                        • Service Contracts
                        • Air Conditioners
                        • + More
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                          N&G Mechanical LLC

                          Springfield, VA, 22153    Locations  
                          (703) 906-4102   
                          Contacts   Website Lic: 2705114159
                          • Mechanical Services
                          • Heat Pumps
                          • Air Conditioning
                          • Water Heater
                          • Humidifier
                          • Electronic Air Cleaner
                          • Restaurant Equipment
                          • Light Commercial Equipment
                          • Plumbing
                          • + More
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                            Denver-Elek, Inc.

                            Baltimore, MD, 21221    Locations  
                            (410) 574-8400   
                            Contacts   Website Lic: 2705114159
                            • Design-Build
                            • Electrical & Duct Banks
                            • HVAC
                            • Metal, Aluminum, Wood
                            • Piping
                            • Plumbing
                            • + More
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                              PARS Heating, Air Conditioning & Refrigeration, Inc. Co.

                              Sterling, VA, 20166    Locations  
                              (703) 742-8384   
                              Contacts   Website Lic: 2705 097198A
                              • Controls
                              • EMS (Energy Management Systems)
                              • HVAC
                              • Rooftop Units
                              • VAV
                              • Ventilation
                              • + More
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                                McCloskey Mechanical Contractors, Inc.

                                Washington, DC, 20007    Locations  
                                (202) 999-5533   
                                Contacts   Website Lic: 7582
                                • Air Conditioning/HVAC
                                • Design-Build
                                • Fire Protection
                                • Industrial
                                • Heating
                                • HVAC
                                • + More
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                                  Adrian L. Merton, Inc.

                                  Capitol Heights, MD, 20743    Locations  
                                  (301) 336-2700   (301) 336-7900
                                  Contacts   Website Lic: N
                                  • Mechanical / HVAC Services
                                  • Mechanical Contracting
                                  • Mechanical Engineering
                                  • HVAC Systems
                                  • HVAC & Appliance Repair/Install
                                  • HVAC Air Balance
                                  • + More
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                                    Amtek Engineering Services

                                    Falls Church, VA, 22042    Locations  
                                    (703) 970-8905   (240) 296-8800
                                    Contacts   Website Lic: 16255
                                    • Mechanical, Elect. & Plumbing
                                    • General Maintenance & Repair
                                    • Preventive Maintenance
                                    • Split-System Heat Pumps
                                    • Hydronic heat pumps
                                    • Exhaust Systems
                                    • + More
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                                      Air Solution Mechanical Services

                                      Springfield, VA, 22150    Locations  
                                      (866) 694-2631   
                                      Contacts   Website Lic: 16255
                                      • Heating & A/C Repair
                                      • Plumbing Services
                                      • Fixtures
                                      • Water Heaters
                                      • Drain Cleaning
                                      • Cooling
                                      • + More
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                                        Cool Breeze

                                        Owings Mills, MD, 21117    Locations  
                                        (410) 549-0323   
                                        Contacts   Website Lic: 16443
                                        • Commercial
                                        • Residential
                                        • HVAC Service
                                        • Preventative Maintenance
                                        • Emergency Service
                                        • Air Conditioner Repair
                                        • + More
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                                          Global HVAC LLC

                                          Sykesville, MD, 21784    Locations  
                                          (410) 696-2227   
                                          Contacts   Website Lic: 16443
                                          • Air Conditioning Contractors
                                          • Heating Contractors
                                          • Ventilating Equipment
                                          • + More
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                                            Krick Plumbing & Heating, Inc.

                                            Hyattsville, MD, 20781    Locations  
                                            (301) 927-5284   
                                            Contacts   Website Lic: 16443
                                            • Heating Contractors
                                            • Mechanical Contractors
                                            • Plumbing Contractors
                                            • Design-Build
                                            • Insulation and Fire Safing
                                            • Solar Services
                                            • + More
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                                              Total Mechanical Services LLC

                                              Springfield, VA, 22150    Locations  
                                              (844) 404-8227   
                                              Contacts   Website Lic: 2710067255
                                              • Commercial Refrigeration Service
                                              • Commercial ventilation services
                                              • Commercial Refrigeration
                                              • Commercial HVAC
                                              • Industrial refrigerators
                                              • Walk-In Freezers
                                              • + More
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                                                Mason Mechanical Services LLC

                                                • Heating & Cooling
                                                • Chiller Service
                                                • HVAC Controls
                                                • Pneumatic
                                                • Digital
                                                • Analog
                                                • + More
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                                                  Hughes Mechanical LLC

                                                  Essex, MD, 21221    Locations  
                                                  (410) 937-2261   
                                                  Contacts   Website Lic: 2710067255
                                                  • Central Air Conditioning
                                                  • Heat Pumps
                                                  • Ductless Systems
                                                  • Ducts & Vents
                                                  • Gas & Oil Furnaces
                                                  • Hot Water & Steam Boilers
                                                  • + More
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                                                    Dynatech Service Co., Inc.

                                                    Alexandria, VA, 22312    Locations  
                                                    (703) 642-2108   
                                                    Contacts   Website Lic: 2710067255
                                                    • HVAC
                                                    • Gas Furnace
                                                    • Commercial Service
                                                    • Refrigeration Service
                                                    • Boiler, Chiller
                                                    • Water Source Heat Pump
                                                    • + More
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                                                      City Wide Mechanical, LLC

                                                      Sunderland, MD, 20689    Locations  
                                                      (410) 257-0726   
                                                      Contacts   Website Lic: 2710067255
                                                      • Plumbing
                                                      • Asphalt Cutting
                                                      • Mechanical
                                                      • Asphalt Sawing
                                                      • Chain Sawing
                                                      • Boiler Rooms
                                                      • + More
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                                                        Interstate Service Company, Inc.

                                                        Brentwood, MD, 20722    Locations  
                                                        (301) 864-2121   
                                                        Contacts   Website Lic: 2710067255
                                                        • Installation
                                                        • HVAC System Replacement
                                                        • Tenant Fit Outs
                                                        • + More
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                                                          Atlantic Industrial, Mechanical & Electrical Inc.

                                                          Baltimore, MD, 21226    Locations  
                                                          (410) 355-1869   
                                                          Contacts   Website Lic: 30257518
                                                          • Cathodic Protection
                                                          • Coating Rehabilitation
                                                          • Foundation & Structures
                                                          • + More
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                                                            Chilmar Corp.

                                                            Baltimore, MD, 21206    Locations  
                                                            (410) 426-5482   
                                                            Contacts   Website Lic: MD HVACR 2452
                                                            • Drywall
                                                            • Electrical
                                                            • Fire Sprinkler Systems
                                                            • + More
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                                                              East Coast Welding & Construction

                                                              Glen Burnie, MD, 21061    Locations  
                                                              (410) 787-1450   
                                                              Contacts   Website Lic: 2705 092542A
                                                              • Welding
                                                              • Boilers and Piping
                                                              • New Installation
                                                              • + More
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                                                                G.H. Nitzel, Inc.

                                                                Baltimore, MD, 21236    Locations  
                                                                (410) 335-0200   
                                                                Contacts   Website Lic: 6668
                                                                • Mechanical
                                                                • Pipe Fitting
                                                                • Plumbing
                                                                • + More
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                                                                  Paramount Mechanical Corporation

                                                                  • Engineering/Design-Build
                                                                  • Quality Control & Commissioning
                                                                  • Building Automation Systems
                                                                  • + More
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                                                                    Comfort Tech

                                                                    Millersville, MD, 21108    Locations  
                                                                    (410) 729-4220   
                                                                    Contacts   Website Lic: DC1000638
                                                                    • Maintenance
                                                                    • Equipment Installation
                                                                    • Heat Pumps
                                                                    • + More
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                                                                      Capps Mechanical, LLC

                                                                      Sunderland, MD, 20689    Locations  
                                                                      (443) 684-7914   
                                                                      Contacts   Website Lic: DC1000638
                                                                      • Air Conditioning
                                                                      • Air Conditioning & Heating
                                                                      • Service Contracts
                                                                      • + More
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                                                                        Genesis Property Services

                                                                        • Tenant Alterations
                                                                        • Tenant Build-Outs
                                                                        • Tenant Fit-Out
                                                                        • + More
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                                                                          Atlantic Industrial, Mechanical & Electrical Inc.

                                                                          Baltimore, MD, 21226    Locations  
                                                                          (410) 355-1869   
                                                                          Contacts   Website Lic: 30257518
                                                                          • Cathodic Protection
                                                                          • Coating Rehabilitation
                                                                          • Foundation & Structures
                                                                          • + More
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                                                                            G.A. Mechanical Inc.

                                                                            Kingsville, MD, 21087    Locations  
                                                                            (410) 335-4555   
                                                                            Contacts   Website Lic: 18769
                                                                            • Backflow Prevention Management
                                                                            • Commercial & Res. Plumbing
                                                                            • Renovations
                                                                            • + More
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                                                                              Temp Air Company

                                                                              Owings Mills, MD, 21117    Locations  
                                                                              (410) 358-8078   
                                                                              Contacts   Website Lic: 30186809
                                                                              • General Mechanical Contracting
                                                                              • Service Contracts
                                                                              • Total Facility Engineering
                                                                              • + More
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                                                                                Bernward

                                                                                • Building Restoration
                                                                                • Central Plants
                                                                                • Corporate Interiors
                                                                                • + More
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                                                                                  Best Mechanical Inc.

                                                                                  • Residential Plumbing Services
                                                                                  • Residential Heating & Air
                                                                                  • Plumbing Installation and Repair
                                                                                  • + More
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                                                                                    Appalachian Heating & Cooling

                                                                                    Cumberland, MD, 21502    Locations  
                                                                                    (301) 722-0570   
                                                                                    Contacts   Website Lic: 62419
                                                                                    • Air Conditioning Contractors
                                                                                    • Heating Contractors
                                                                                    • Ventilating Equipment
                                                                                    • + More
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                                                                                      Thermal Balance Heating & Cooling LLC

                                                                                      Woodbridge, VA, 22193    Locations  
                                                                                      (571) 839-0750   
                                                                                      Contacts   Website Lic: 2705145976
                                                                                      • Furnace Repairs
                                                                                      • Air Conditioner Repairs
                                                                                      • Heat Pump Repairs
                                                                                      • + More
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                                                                                        HVAC Systems, Inc.

                                                                                        Centreville, MD, 21617    Locations  
                                                                                        (443) 262-9730   
                                                                                        Contacts   Website Lic: 5528
                                                                                        • Control Systems
                                                                                        • Interior Fit Ups/Build-Outs
                                                                                        • Rooftop Units
                                                                                        • + More
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                                                                                          M & M Welding & Fabricators, Inc.

                                                                                          Mount Airy, MD, 21771    Locations  
                                                                                          (301) 948-9330   
                                                                                          Contacts   Website Lic: 601764
                                                                                          • Breeching Repairs & Installation
                                                                                          • Feedwater Blowdown Systems
                                                                                          • Mechanical Pipe Installation
                                                                                          • + More
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                                                                                            Superior Mechanical Services, Inc.

                                                                                            Beltsville, MD, 20705    Locations  
                                                                                            (301) 931-0100   
                                                                                            Contacts   Website Lic: 601764
                                                                                            • 24/7 Emergency Services
                                                                                            • 24/7 Customer Service
                                                                                            • Plumbing
                                                                                            • + More
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                                                                                              Salco Mechanical Contractors

                                                                                              Rockville, MD, 20850    Locations  
                                                                                              (301) 309-1800   
                                                                                              Contacts   Website Lic: 601764
                                                                                              • Design & Build
                                                                                              • Plumbing, Heating, A/C
                                                                                              • + More
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                                                                                                Payne Mechanical Service LLC

                                                                                                Bowie, MD, 20715    Locations  
                                                                                                (301) 254-1447   
                                                                                                Contacts   Website Lic: 50254
                                                                                                • Air Conditioning Contractors
                                                                                                • Mechanical Contractors
                                                                                                • Heating Contractors
                                                                                                • + More
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                                                                                                  Wright Design, Inc.

                                                                                                  Townsend, DE, 19734    Locations  
                                                                                                  (302) 464-1264   
                                                                                                  Contacts   Website Lic: MD 3370
                                                                                                  • Mechanical Contractors
                                                                                                  • Generator Sets
                                                                                                  • + More

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