Westside Mechanical
Construction · Naperville, Illinois
Products & Services
About Westside Mechanical
As one of Chicago area?s largest full service mechanical contractors, Westside Mechanical Group offers 24/7/365 emergency HVAC service in addition to preventative, full service, and custom maintenance programs tailored to meet our clients? specific needs.
Its primary NAICS classification is 238220 (Plumbing, Heating, and Air-Conditioning Contractors). Westside Mechanical is one of 6,047 Construction companies listed in Illinois.
Business Contact Information
- Phone
- +1 (630) 3696690
- Fax
- +XXX (630) 3696691
- Website
- http://www.wsmech.com
- facebook.com/westsidemechanical
- Address
- 2007 Corporate Ln, Naperville, Illinois, 60563, United States
Industry & Classification
- Industry
- Construction
- Sector
- Construction
- Segment
- Industrial construction
NAICS Codes
- 23Construction
- 2382Building Equipment Contractors
- 238220Plumbing, Heating, and Air-Conditioning Contractors
SIC Codes
- 17Construction Special Trade Contractors
- 171Plumbing, Heating And Air-conditioning
- 1711Plumbing, Heating, and Air Conditioning Contractors
Company Details
- Employees
- 345 (251-500)
- Annual Revenue
- $222.8M ($100M-$250M)
Westside Mechanical: frequently asked questions
What does Westside Mechanical do?
As one of Chicago area?s largest full service mechanical contractors, Westside Mechanical Group offers 24/7/365 emergency HVAC service in addition to preventative, full service, and custom maintenance programs tailored to meet our clients? specific needs.
Where is Westside Mechanical located?
Westside Mechanical is headquartered at 2007 Corporate Ln, Naperville, Illinois, 60563, United States.
How many employees does Westside Mechanical have?
Westside Mechanical has about 345 employees (the 251-500 range).
What is Westside Mechanical's annual revenue?
Westside Mechanical's annual revenue is estimated at $222.8M (the $100M-$250M range).
What industry is Westside Mechanical in?
Westside Mechanical is in the Construction / Construction industry, and its primary NAICS code is 238220 (Plumbing, Heating, and Air-Conditioning Contractors).
How can I contact Westside Mechanical?
Its website is www.wsmech.com and its phone number is +1 (630) 3696690.
What companies are similar to Westside Mechanical?
Other large construction companies in Illinois include Clayco Inc, Tecta America Corp, Enppi and Power Construction.
Largest construction companies in Illinois
Largest companies in Illinois
Largest construction companies
Manufacturing sales in Illinois, 2026
In Illinois, Factur's 2026 study counted 74 manufacturing quotes worth $11.8M and 14 purchase orders over 12 months: 19% of quotes became orders, against 21% nationally. See the Illinois data.
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