Wm. Tonyan & Sons, Inc.

McHenry, Illinois 60050
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Our Story

Breaking ground throughout northern Illinois since 1962, Wm. Tonyan & Sons, Inc (WTS) has delivered commercial, industrial and institutional projects to satisfied clients.  Our reputation is built on a “can do” spirit that drives us to meet each building challenge with inventive, practical solutions.  We’re proud of our long standing union affiliations and of our impeccable safety record.

Values of integrity, discipline, teamwork and dedication to excellence established by our founders continue to guide us.  The driving force of our company has always been complete customer satisfaction.  Our commitment to the customer has consistently brought us word-of-mouth referrals and garnered several prestigious awards along the way. See our Client Testimonials and the Project Gallery for a sampling of projects in our project portfolio.

Our second generation company meets the full range of the customer’s needs, directing projects from raw land to operating facility.  Constructing your building the way you want it and within your budget is our specialty. Getting the job done right, on time and at a fair price is our priority.

WTS maintains a highly skilled team of craftsmen and management personnel devoted to meeting the specific needs of each project.  Our work force is reliable, timetables realistic and quotes accurate.  Attention is given to the coordination of various trades, schedules, quality and communication with clients. 

WTS has forged long term relationships with clients who require a diverse range of services.  A large portion of our work load consists of repeat business.  We value loyalty and strive to continually meet and exceed expectations.

On your next construction project let us perform with trust and confidence.  See for yourself why WTS has been an industry leader in the area for over forty five years. 

Contact us today for your construction needs.

What We Do

Products and Services

CSI Codes

Our standard scope of services includes the following CSI Master Format™ code(s).
01 24 13 - Value Engineering
01 29 83 - Payment Procedures for Testing Laboratory Services
01 31 13 - Project Coordination
01 31 19.13 - Preconstruction Meetings
01 35 16 - Alteration Project Procedures
01 84 19 - Interior Finishes Performance Requirements
01 85 00.00.01 - Conveying Equipment Performance Requirements
01 87 13 - Equipment Performance Requirements
01 88 16 - Selective Construction Performance Requirements
01 91 23 - Interiors Commissioning
01 91 23.13 - Interior Construction Commissioning
01 91 23.43 - Stairways Commissioning
03 08 00.00.01 - Commissioning of Concrete
04 08 00.00.01 - Commissioning of Masonry
09 06 00.13 - Room Finish Schedule
13 34 19 - Metal Building Systems
34 73 23 - Manufactured Airfield Control Towers

Commercial Construction Project Specializations

Animal Hospital / Kennel
Assisted Living
Athletic Field
Auto Dealership / Service
Church / Synagogue
City / Town Hall
Club House / Community Center
Court House
Data Centers - Mission Critical
Design Build
Education (K-12)
Fire / Police Station
Fitness Center
Golf Course
Grocery Stores
Historic Preservation
Hospital / Nursing Home
Industrial Maintenance
Jail / Prison
Manufacturing Plant
Medical Office
Mixed Use
Non-Building Construction
Non-Residential Building
Office Building
Park / Playground
Post Office
Power Generation & Distribution
Pre-Manufactured Structures
Radio / Television Station
Renewable Energy
Retail Store
School / College / University
Secure and Shielded Facilities
Storage Facility / Warehouse
Tennis Court

Company Information

Year Established:
Labor Affiliation:
Annual Volume:
Company Size:
Not Provided Request
Service Sector:
Public Private
Typical Project Size:
Not Provided Request
Project Types:
Service Work/Repairs

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