Part of our Bay Area best-of guides, lists for every city and service we cover.
Newark sits between Fremont and the Dumbarton Bridge, so homeowners can draw on Newark and Fremont contractors as well as South Bay companies that cross the county line. These seven companies all work in Newark.
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 | Dukes Heating & Air Conditioning | Newark | Residential and commercial AC, furnaces, heat pumps, ductless | #860923 |
| 3 | Glover & Son Heating and Air Conditioning | Fremont and Newark | AC, furnaces, heat pumps, ductwork, 24/7 emergency HVAC | #758274 |
| 4 | AIS Heating & Air Conditioning | Fremont | AC, heating, heat pumps, ductless mini-splits, energy audits | #1098502 |
| 5 | EM Energy & Air | Bay Area | Furnaces, AC, heat pumps, mini-splits, ducts, attic insulation | #1153724 |
| 6 | Air & Plumbing Systems | Campbell | HVAC replacement, furnaces, AC, heat pumps, water heaters | #901246 |
| 7 | Plum HVAC | Mountain View | Heat pumps, mini-splits, AC, heating, ductwork, heat pump water heaters | #1087978 |
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 Newark or that name Newark 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 We do not publish star ratings or review counts here: they change weekly, so read them on Google or Yelp at the time you hire.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 Newark and how closely its services match typical Newark 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 Newark for repair, replacement and maintenance, and we publish this list.
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 Newark: Newark HVAC & refrigeration services.
#2 — Dukes Heating & Air Conditioning
Residential and commercial AC, furnaces, heat pumps, ductless.
What stands out
#3 — Glover & Son Heating and Air Conditioning
AC, furnaces, heat pumps, ductwork, 24/7 emergency HVAC.
What stands out
#4 — AIS Heating & Air Conditioning
AC, heating, heat pumps, ductless mini-splits, energy audits.
What stands out
#5 — EM Energy & Air
Furnaces, AC, heat pumps, mini-splits, ducts, attic insulation.
Its website does not publish a street address, so we have listed its base as the Bay Area.
What stands out
#6 — Air & Plumbing Systems
HVAC replacement, furnaces, AC, heat pumps, water heaters.
What stands out
#7 — Plum HVAC
Heat pumps, mini-splits, AC, heating, ductwork, heat pump water heaters.
What stands out
What Newark homeowners should know
- Newark is in Ava Community Energy’s service area, and Newark customers are on Ava’s Bright Choice service by default, with PG&E delivering the power. (Ava Community Energy)
- A replacement generally needs a city mechanical permit, and many changeouts need HERS verification. Ask every contractor to include both in the quote. (CEC on HERS testing)
How to choose an HVAC company in Newark
- 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 Newark?
Almost always. In California, replacing a furnace, air conditioner or heat pump normally needs a mechanical permit from the local building department, and Newark 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 Newark?
Programs change often, and several Bay Area incentives have closed or changed since 2024, so confirm what is open before you budget around one. Newark is in Ava Community Energy’s service area, with PG&E delivering the power. (Ava Community Energy) Check Ava and BayREN for current offers, and see our Bay Area heat pump rebate guide for how the programs fit together.
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 Newark?
Yes. We serve Newark from our Santa Clara base for residential and commercial HVAC and refrigeration, including 24/7 emergency calls. See our Newark page or call 1-800-266-5243.
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