J & J Contrg.
Columbia, MD 21046
People Also View These
Loading...
Our Story
We are Air Conditioning Contractors, Plumbing Contractors.
J & J Contracting has been listed in the Blue Book since 2019.
Commercial Experience
House
Misc Project
Mixed Use
Office Building
Residential Building
Restaurant
Retail Store
Single Family Residential
Regions & Counties Serviced
- Washington D.C.
Maryland 7
- Anne Arundel
- Baltimore
- Baltimore City
- Carroll
- Frederick
- Harford
- Howard
Our CSI Codes
22 01 10 - Operation and Maintenance of Plumbing Piping and Pumps
22 01 30 - Operation and Maintenance of Plumbing Equipment
22 01 40 - Operation and Maintenance of Plumbing Fixtures
22 06 10 - Schedules for Plumbing Piping and Pumps
22 06 10.13 - Plumbing Pump Schedule
22 06 30.13 - Domestic Water Heater Schedule
22 10 00.00.01 - Plumbing Piping and Pumps
22 13 19.13 - Sanitary Drains
23 01 30 - Operation and Maintenance of HVAC Air Distribution
23 01 60 - Operation and Maintenance of Central Cooling Equipment
23 01 70 - Operation and Maintenance of Central HVAC Equipment
23 06 30 - Schedules for HVAC Air Distribution
23 06 30.16 - Air Terminal Unit Schedule
23 06 30.19 - Air Outlet and Inlet Schedule
23 06 70 - Schedules for Central HVAC Equipment
23 06 70.13 - Indoor, Central-Station Air-Handling Unit Schedule
23 06 70.16 - Packaged Outdoor HVAC Equipment Schedule
23 06 80 - Schedules for Decentralized HVAC Equipment
23 06 80.13 - Decentralized Unitary HVAC Equipment Schedule
23 30 00.00.01 - HVAC Air Distribution
Gallery
Services
Services
Services
Services
