Run a HVAC contractor business in Chicago? We checked the 20 HVAC companies Google shows for “HVAC contractor in Chicago, IL” on October 18, 2026. Here is who ranks, what separates the top 3 from everyone else, and what their websites do that most don't.
| # | Business | Rating | Reviews | Website |
|---|---|---|---|---|
| 1 | Besco Air Inc. | 4.9 ★ | 1,513 | bescoair.net |
| 2 | All Temp Heating and Air Conditioning | 4.9 ★ | 2,578 | alltemp.com |
| 3 | Deljo Heating, Cooling & Plumbing | 4.9 ★ | 3,442 | deljoheating.com |
| 4 | Four Seasons Heating, Air Conditioning, Plumbing, Sewer & Electric | 4.7 ★ | 32,007 | fourseasonsheatingcooling.com |
| 5 | Oasis Plumbing, Heating & Cooling | 4.9 ★ | 1,472 | oasisheating.com |
| 6 | Five Star HVAC Services, Inc. | 4.9 ★ | 457 | fivestar247.com |
| 7 | Guardian Heating & Cooling Service | 4.8 ★ | 1,242 | guardianheatingandcooling.com |
| 8 | Brothers Heating & Cooling Inc. & Brothers Perfect Construction LLC | 4.9 ★ | 262 | brothersheatingandcooling.com |
| 9 | Global Heating and Cooling LLC | HVAC | 4.9 ★ | 309 | globalheatingcooling.us |
| 10 | Browns Heating & Cooling | 4.9 ★ | 207 | brownshvac.net |
HVAC website design & SEO: how HVAC companies rank in other cities →
Order as returned by Google for “HVAC contractor in Chicago, IL” on October 18, 2026; average rating 4.9. Results shift with where the searcher is standing.
| On the website | Top HVAC companies doing it |
|---|---|
| Business data (schema) Google and ChatGPT can read | 5 of 10 |
| Tap-to-call phone link | 9 of 10 |
| A quote or contact form | 5 of 10 |
| Customer reviews shown on the site | 8 of 10 |
| A page about Chicago in the site address | 9 of 10 |
Their sites have a median of 270 pages. Ratings barely separate anyone here: all of the top 10 are 4.7★ or better. Review count, a real website and a page for each town you serve are where the field differs most.
We asked ChatGPT (with web search on) for the best hvac contractor in Chicago, IL in our September 2026 study of 200 city-and-trade searches. It named 3:
3 of them are also in Google's top 20 above. ChatGPT names businesses it can read about: a website with your services, your towns and your reviews gives it something to read. Read the full study.
We build a preview of your site with your name, your services, your towns and your real Google reviews. You look at it free. If you like it, it's $499 one time to put it live on your own domain.
Book a 15-minute callCall (317) 316-2500Already pre-filled for HVAC companies in Chicago. Score + ranking + issue count in your inbox in 60 seconds. Quick Fix is $99.99 — we make the changes for you. Autopilot is $129.99/mo and keeps them fixed.
On October 18, 2026, the top 3 HVAC companies Google showed for Chicago had between 1,513 and 3,442 reviews (median 2,578). The rest of the top 20 had a median of 386. Location matters too: the map results lean on how close a business is to the person searching.
Every one of the top 20 lists a website, so a site alone won't set you apart here; what's on it will. A website is what lets you show up in the regular Google results under the map, gives ChatGPT something to read about you, and turns a search into a quote request after hours.
We build your site first so you can see it. It's $499 one time to make it yours on your own domain, then $29.99/month for hosting or $129.99/month for Autopilot, where we add a page for each town you serve and track your rankings. No contract.
AI search: Who ChatGPT recommends in Chicago · How to get recommended by ChatGPT
Other trades in Chicago: Roofers · Landscapers · General Contractors · Plumbers · Electricians · Tree Services · Concrete Contractors · Painters · Fence Companies · Pressure Washing Companies · Junk Removal Companies · Lawn Care Companies
How we checked: Google's own business data (Places API) for “HVAC contractor in Chicago, IL” on October 18, 2026; each leading website's home page and sitemap read directly; ChatGPT results from our September 2026 study. Nothing here is estimated. SearchWrench is a service of HighRock Holdings LLC, Cincinnati, OH.