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Top-Rated Central a/c service or repairers in Fremont - Updated Nov 2026

Avatar for Valley Heating, Cooling, Electrical and Solar
Valley Heating, Cooling, Electrical and Solar
4.7(
1,755
)
Central A/C - Service or Repair

Serving Fremont, CA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"

They have been great. They helped me out a lot. They came out pretty quickly and helped me decide what I needed to do. They got the work scheduled and were able to come out on short notice. They took care of a couple of things right away. Ultimately we were very happy with the equipment they helped us select so, everything -- service, equipment, follow up, scheduling -- and the people they sent out here were terrific too.

"
Additional Photos
We provide HVAC sheet metal fabrication, blown in insulation with Owens Corning’s new AttiCat™ Expanding Blown-In PINK FIBERGLAS® and Solatube® installations to add light where you need it without the increasing your electric bill.
The SunSource® Home Energy System puts you in control of your monthly bills by creating and using solar energy, reducing your need for electricity from your utility provider.
Owners, Jeff and Cindy Faulkner
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Central A/C - Service or Repair

Serving Fremont, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Guy who came gave me good advice and advised that he felt my issue was not needed for repair. He didn't try to sale me any service as he saw no need. I appreciate a plumber who isn't trying to get work out of people whom don't need it."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
44 neighbors recently requested a quote
Avatar for Rittinger Heating and Air
Rittinger Heating and Air
5.0(
18
)
Central A/C - Service or Repair

Serving Fremont, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

*****669-669-2435*****We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.

Service maintenance
Service maintenance
Service maintenance
Service maintenance
Service maintenance

+6

16 neighbors recently requested a quote
Avatar for Service KA
Service KA
4.4(
26
)
Central A/C - Service or Repair

Serving Fremont, CA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Juan was so very professional prompt and knowledgeable. I was so very please with his service. I will always use Service King and have told many of my friends"
Ac installation
Ac replacement
Yogasix
Yogasix
Yogasix

+8

Response time8 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Tyndall HVAC Inc.
Tyndall HVAC Inc.
4.4(
23
)
Central A/C - Service or Repair

Serving Fremont, CA and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"it was awesome, he came out after I got off work which was nice, because most places work 8 to 5 and those are my work hours so its hard to get someone out to do a repair. he was very nice and fixed it super quick.
"
Peter Tyndall (Owner)
Our Trucks
New unit Installed
Additional Photos
Additional Photos

+5

Response time11 hrs
Response rate100%
12 neighbors recently requested a quote
Avatar for Gosal Heating and Air Conditioning
Gosal Heating and Air Conditioning
4.3(
77
)
Central A/C - Service or Repair

Serving Fremont, CA and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"We had an excellent bid from them and trusted prior reviews here. We did a furnace replacement with complete re-ducting. They are professionals and took us through inspection and permit process as well. It was a bit slower than expected but they did a thorough job and in the end we have a high efficiency leak proof system in place. By the way, we put in a Nest thermostat which lives to its name in energy saving with little user intervention."
Roof top unit.
inverter board
repair furnace
Response time10 hrs
28 neighbors recently requested a quote
Recommended by88%of homeowners
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FAQs for central a/c service or repair projects in Fremont, CA

Coils work to absorb heat into the refrigerant that flows through them, moving heat from one location to another. For air conditioning, the evaporator coil inside the air handler in your home absorbs heat. It then transfers the heat outside to the condenser coil, where it releases it. The opposite process happens for heat pumps. When the coils get dusty and dirty, it reduces how well these components work.

Skip regular cleanings, and dirt, debris, and mineral deposits will blanket your evaporator and condenser coils. When that happens, the coils can’t shed heat efficiently, so the system works harder and your energy bill climbs. Over time, overheating strains the compressor and can trigger a full breakdown—an avoidable repair that often costs far more than a simple annual cleaning.

AC coil cleaning is an investment that pays for itself in the benefits it provides. Dust‑caked coils force your AC to run longer, so you spend more on electricity and rack up extra wear. A quick professional cleaning restores efficiency, trims monthly bills, and eases strain on expensive parts. Over the long haul, that small yearly fee delays pricy repairs and stretches the unit’s lifespan, making coil cleaning one of the smartest HVAC tune‑ups you can schedule.

Watch for higher electric bills, rooms that stay warm no matter how low you set the thermostat, or an AC system that runs nonstop. Extra humidity and frost on the coils are also red flags. Catching these clues early lets you schedule a quick cleaning before the system overworks itself and triggers an expensive breakdown.

Your AC cleaning technician starts by shutting off the power to the unit and removing the faceplate. Compressed air and a vacuum hose blast away loose debris, followed by a coil-safe, no-rinse cleaner that dissolves stubborn grime. After the solution has soaked in, the professional wipes the fins, reassembles the housing, and restores power, leaving the system ready to cool at peak efficiency.

The Fremont, CA homeowners’ guide to central a/c service or repairs

From average costs to expert advice, get all the answers you need to get your job done.