HVAC & heating in Collinsville, IL
8 hvac & heating listed in Collinsville, Illinois. 8 with a phone number and 5 with a website.
Collinsville accounts for 0.3% of the hvac & heating listed in Illinois.
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Quick answer
Collinsville, IL has 8 hvac & heating listed on USA Business Search. 8 list a phone number and 5 list a website. The most listings are in ZIP codes 62234.
Updated October 2026Mars Plumbing & Heating
Viviano Heating & Air Conditioning, Inc.
Air Doctor Air Conditioning Heating & Refrigeration
Prost Heating & Cooling
Blue Stream Services, Inc.
G & W Heating and Cooling
Green Home Solutions
How to choose an HVAC company in Collinsville
- Ask for a load calculation before you replace a system, not just a size match.
- Compare efficiency ratings (SEER2/AFUE) and available rebates.
- Ask what maintenance plans cost and what they cover.
Check the business: confirm a company's registration with the state in our Illinois business lookup guide, and licensed trades in the contractor license lookup guide.
Common questions
How many hvac & heating are listed in Collinsville, Illinois?
USA Business Search shows 8 hvac & heating in Collinsville. 8 list a phone number and 5 list a website.
Which ZIP codes do these listings cover?
They include ZIP codes 62234.
How do I choose an HVAC company in Collinsville?
Ask for a load calculation before you replace a system, not just a size match. Compare efficiency ratings (SEER2/AFUE) and available rebates. Ask what maintenance plans cost and what they cover. Check the license or registration through the Illinois business lookup guide.
How do I add or fix a listing?
Listings are free. Use Add your business, or the Claim or fix link on any listing.
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