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HVAC & heating in St. Charles, IL

24 hvac & heating listed in St. Charles, Illinois. 24 with a phone number and 18 with a website.

St. Charles accounts for 1% of the hvac & heating listed in Illinois.

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Quick answer

St. Charles, IL has 24 hvac & heating listed on USA Business Search. 24 list a phone number and 18 list a website. The most listings are in ZIP codes 60174, 60175.

Updated October 2026
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How to choose an HVAC company in St. Charles

  • 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 St. Charles, Illinois?

USA Business Search shows 24 hvac & heating in St. Charles. 24 list a phone number and 18 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 60174, 60175.

How do I choose an HVAC company in St. Charles?

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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