Best HVAC Companies in Redwood City
Peninsula heating and cooling contractors, compared
Part of our Bay Area best-of guides, lists for every city and service we cover.
Redwood City has more home-grown HVAC contractors than most Peninsula cities, four of them on this list. Here are seven companies that work in Redwood City and what each focuses on.
At a glance
| # | Company | Based in | Focus | License |
|---|---|---|---|---|
| 1 | Cool Aid Air Conditioning & Refrigeration | Santa Clara | Residential and commercial HVAC, commercial refrigeration | C-20 & C-38 |
| 2 | Bodnar Heating & Air Conditioning, Inc. | Redwood City | AC, furnace and heat pump repair and replacement; wall heaters | — |
| 3 | Marcucci Heating & Air Conditioning | Redwood City | Furnaces, heat pumps, mini-splits, AC, hydronic systems | — |
| 4 | Comfort Zone Heat and Air | Redwood City | HVAC systems, furnaces, heat pumps, AC, sheet-metal fabrication | #1132744 |
| 5 | Ignite HVAC Inc | Redwood City | Heat pumps, ductless mini-splits, AC, gas furnaces, heat pump water heaters | #1076804 |
| 6 | Alternative HVAC Solutions | San Carlos | Furnaces, AC, heat pumps, zoning, indoor air quality | #967878 |
| 7 | Calvey Heating & Air | San Jose and Mountain View | AC, mini-splits, furnaces, heat pumps, ductwork fabrication | #932199 |
License numbers are shown only where the company prints one on its own site. Check any contractor on the CSLB license lookup before you hire.
How we picked
We started from contractors that are based in or near Redwood City or that name Redwood City on their own website as a place they work. We then visited each company’s site to confirm what it actually offers and where it works. We left out lead-generation directories, businesses whose sites no longer load, and national chains with no local presence. We do not publish star ratings or review counts here: they change weekly, so read them on Google or Yelp at the time you hire.
The order after #1 reflects how close each company is to Redwood City and how closely its services match typical Redwood City homes. It is not a quality score, and no company paid to be included.
#1 — Cool Aid Air Conditioning & Refrigeration
Cool Aid is a family-owned HVAC and refrigeration contractor founded in 1966 and based at 3511 Thomas Rd in Santa Clara. We work on homes and businesses in Redwood City for repair, replacement and maintenance, and we publish this list. We are not based in Redwood City. For a routine tune-up, a company closer to home may be able to schedule you sooner, and several of them are listed below.
What stands out
- California C-20 (HVAC) and C-38 (refrigeration) licensed; EPA Universal certified technicians
- 24/7 emergency service for no-heat and no-cooling calls
- Furnaces, central AC, heat pumps and ductless mini-splits, plus commercial HVAC and refrigeration
- Every job backed by a 1-year parts & labor warranty
More about our work in Redwood City: Redwood City HVAC & refrigeration services.
#2 — Bodnar Heating & Air Conditioning, Inc.
AC, furnace and heat pump repair and replacement; wall heaters.
What stands out
#3 — Marcucci Heating & Air Conditioning
Furnaces, heat pumps, mini-splits, AC, hydronic systems.
What stands out
#4 — Comfort Zone Heat and Air
HVAC systems, furnaces, heat pumps, AC, sheet-metal fabrication.
What stands out
#5 — Ignite HVAC Inc
Heat pumps, ductless mini-splits, AC, gas furnaces, heat pump water heaters.
What stands out
#6 — Alternative HVAC Solutions
Furnaces, AC, heat pumps, zoning, indoor air quality.
What stands out
#7 — Calvey Heating & Air
AC, mini-splits, furnaces, heat pumps, ductwork fabrication.
What stands out
What Redwood City homeowners should know
- San Mateo County’s community electricity provider, formerly Peninsula Clean Energy, is now called WestLight Energy. It offers a heat pump HVAC rebate of up to $2,500 that can be combined with other incentives. Check the current terms before you sign a contract. (WestLight Energy)
- A replacement generally needs a city mechanical permit, and many changeouts need HERS verification. (CEC on HERS testing)
- If your home has a wall heater or floor furnace rather than a ducted system, ask whether a contractor works on that type before you book.
How to choose an HVAC company in Redwood City
- Check the license yourself. Look up the business on the CSLB site and confirm a C-20 classification for heating and cooling work.
- Get the permit in writing. The quote should say who pulls the permit and whether HERS testing is included. A price that leaves both out is not comparable.
- Ask for a load calculation on replacements. Sizing a new system from the old nameplate repeats whatever mistake was made last time.
- Compare the same scope. Equipment model numbers, duct work, electrical upgrades and warranty terms should all be written down.
- Ask about rebates before you sign. Some programs need approval before installation.
For more, see our guide to choosing an HVAC company in the Bay Area.
Frequently asked questions
Do I need a permit to replace a furnace, AC or heat pump in Redwood City?
Almost always. In California, replacing a furnace, air conditioner or heat pump normally needs a mechanical permit from the local building department, and Redwood City is no exception. Many changeouts also need a HERS rater to verify the installation, depending on the work. A licensed contractor should pull the permit for you and include it in the quote. (CEC on HERS testing)
Are there heat pump rebates in Redwood City?
Yes, at the time of writing. WestLight Energy, formerly Peninsula Clean Energy, offers a heat pump HVAC rebate of up to $2,500 for San Mateo County customers, and it can be combined with other incentives. Terms change, so confirm before you sign. (WestLight Energy) Our Bay Area heat pump rebate guide covers the other programs.
How do I check an HVAC contractor’s license?
Search the company name or license number on the CSLB license lookup. Residential HVAC work needs a C-20 license. The lookup also shows the bond, workers’ compensation status and any disciplinary actions. If a company only gives you a number, check that the name on the license matches the business you are dealing with.
Does Cool Aid serve Redwood City?
Yes. We serve Redwood City from our Santa Clara base for residential and commercial HVAC and refrigeration, including 24/7 emergency calls. See our Redwood City page or call 1-800-266-5243.
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