Bay Area HVAC Best-Of Guides
Every ranked list we publish, by city, service and equipment
These are the ranked lists and comparisons we publish for the Bay Area, in one place. Pick your city for a shortlist of local HVAC contractors, or pick the job you need done. Commercial lists cover restaurants, grocers and offices.
HVAC companies by city
Local shortlists for the cities we serve. Each one names the companies, what they focus on, and what homeowners in that city should check before hiring.
- San JoseTen HVAC contractors serving San Jose, compared side by side.
- Santa ClaraTen contractors for repair and installation in Santa Clara.
- SunnyvaleTen heating and cooling contractors serving Sunnyvale.
- Mountain ViewTen local contractors for AC, heating and installation.
- Palo AltoTen contractors for Palo Alto homes, old and new.
- Los AltosHVAC contractors serving Los Altos and Los Altos Hills.
- CupertinoTen contractors serving Cupertino homes.
- CampbellTen contractors serving Campbell.
- Los GatosTen contractors serving Los Gatos, including hillside homes.
- MilpitasTen contractors serving Milpitas.
- Morgan HillTen contractors serving Morgan Hill and South Valley.
- GilroyTen contractors serving Gilroy.
- Redwood CityHVAC contractors serving Redwood City.
- FremontTen contractors for AC, furnace service and installation in Fremont.
- NewarkHVAC contractors serving Newark, CA.
- HaywardHVAC contractors serving Hayward.
- DublinHVAC contractors serving Dublin in the Tri-Valley.
- PleasantonHVAC contractors serving Pleasanton.
- LivermoreHVAC contractors serving Livermore.
Home heating & cooling services
Lists built around one job, for when you already know what you need done.
- AC repair in San JoseEight companies for fast AC repair in San Jose.
- AC repair in FremontSeven companies offering same-day AC repair in Fremont.
- AC installation in Santa ClaraSix installers for a new central AC system.
- Furnace repair in San JoseSeven companies for winter furnace repair.
- Furnace installationSix Bay Area furnace installers, with what drives the cost.
- Heat pump installersTen heat pump installers, plus which rebate programs are still open.
- Ductless mini-split installersSeven installers for ductless systems.
- HVAC maintenance plansEight companies compared on tune-ups and maintenance plans.
- 24/7 emergency HVAC repairCompanies that answer no-heat and no-cooling calls after hours.
- Older Bay Area homesEight companies for old ductwork, tight attics and upgrades.
- New constructionSeven companies for Title 24 load calculations and new-build HVAC.
Commercial HVAC & refrigeration
For restaurants, grocers, offices and facility managers.
- Commercial HVAC in San JoseEight commercial HVAC contractors for San Jose businesses.
- Commercial refrigeration repairFive refrigeration repair companies for restaurants and stores.
- Restaurant HVAC & refrigerationFive companies that handle both kitchen HVAC and refrigeration.
- Walk-in cooler repairFive companies for walk-in cooler and freezer repair.
- Ice machine repairCompanies that service commercial ice machines.
- Server room coolingCompanies that install and service IT room cooling.
Equipment & brands
Product comparisons rather than company rankings.
- AC brandsFive central AC brands compared for Bay Area homes.
- Heat pump brandsFive heat pump brands compared on efficiency and price.
- Air purifiers for Bay Area homesWhole-home and portable purifiers for wildfire season.
- Air purifiers for your HVAC systemPurifiers that work with the system you already have.
Frequently asked questions
Who writes these lists?
Our own team at Cool Aid Air Conditioning & Refrigeration, a family HVAC and refrigeration contractor in Santa Clara since 1966. Every list that ranks companies says so in a disclosure box at the top.
Why is Cool Aid on the lists?
We serve every city and service these lists cover, so we include ourselves. The other companies are real, currently operating local businesses. Details about them come from their own websites and other public information, and can change, so confirm anything important with the company directly.
How do I check an HVAC contractor’s license in California?
Search the company name or license number on the Contractors State License Board’s license lookup. HVAC work needs a C-20 license, and refrigeration work a C-38. The lookup also shows bond, workers’ comp and any complaints.
Is there a guide to choosing a contractor rather than a list of names?
Yes. Choosing an HVAC Company in the Bay Area collects our articles on questions to ask, quotes, warranties and red flags.
Need a technician now? Call 1-800-266-5243. We offer 24/7 emergency HVAC and refrigeration service across the Bay Area.
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