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Find Central a/c service or repairers in San Dimas

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)

Serving San Dimas, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I called Global Green Solutions for Central A/C Service and Repair, and they exceeded my expectations. They diagnosed the problem fast and fixed it the same day. Great communication and fair pricing. I will definitely use them again."
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+24

Response time3 days
8 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for MSP Heating and Air, LLC
MSP Heating and Air, LLC
4.9(
327
)

Serving San Dimas, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"The extensive knowledge provided by Brandon, technician, and the solutions to repair the A/C unit. MSP was prompt on my request for a quote, next day availability, and great customer service. Great service!"
duct job all R-8 ducting
4 Ton GOODMAN Furnace
customer Vlastos
duct job all R-8 ducting
furnace install

+67

Response time4 hrs
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
4.9(
270
)

Serving San Dimas, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"Review of inspection and estimate bid process. This is a solid, honest, and professional company. Thank you to Ivan who came out to the property to assess a mainline leak by our sidewalk. He offered impeccable service and respect with understanding of my needs for plumbing repairs. All City came through with requested bids for both a 2 foot patch repair and a full water mainline replacement for several types of piping and methods. Ivan provided proper legal estimate contracts and scope of work details, responded promptly and courteously to all phone calls, emails and texts. As it turned out the County Public Works Department easily fixed the connector leak when repairing the sidewalk concrete and the mainline was confirmed as stable. The mainline had been replaced prior, unbeknownst to me. No extra repairs were needed. I definitely would have contracted All City to do this repair if it was necessary. Ivan is the best, very kind and polite as was the office staff and Dominic who booked the appointment. I’m glad All City is in the OC area! Thank you, it was a pleasure to interact with your company!"
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+42

Response time10 mins
16 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Service Champions, LLC
Service Champions, LLC
4.4(
50
)

Serving San Dimas, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"We are in the process of having both our dirty & clean water lines completely changed, which is a huge project. Several of the great Service Champion technicians have had to dig huge holes & long trenches, with the additional obstacle of having to cut through huge roots, from an enormous tree in front of our house, that have literally taking over our front yard & destroyed the pipes. They also cut through cement & even â  jackhammeredâ  through an enormous patch of concrete that was about a foot deep, which took a lot of time & muscle to remove! This was definitely an amazing example of â  good deeds for freeâ  . We had so many different, excellent technicians coming & going, who did a tremendous job for us, but I unfortunately cannot remember everybodyâ  s names. There are two guys who actually have been working at our house the most, so Iâ  d like to recognize them (big Chris & Ryan). They are both terrific examples of the Service Champions model, and are excellent in their trade! They have worked very hard & have been a great help in so many different ways, helping to make this difficult process much easier for our family! Kudos & our deepest thanks to Chris & Ryan & all the great Service Champions professionals! We sincerely appreciate you all!"
Area Drain Cleaning
Plumbing
Plumbing
Garbage Disposal
Drain Cleaning

+13

Response time4 hrs
Recommended by79%of homeowners
Avatar for HD MECHANICAL INC
HD MECHANICAL INC
5.0(
26
)

Serving San Dimas, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"I’m so glad I called HD mechanical to have my thermostat fixed. We set a time to meet up and he was there on time and very professional. He was very thorough with his work and explained to me all the work he performed. He even checked and serviced my unit, showing me that my filter needed to be changed. Would definitely recommend to anyone who needs and service/repairs done."
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Additional Photos

+14

Response time9 hrs
Response rate85%
51 neighbors recently requested a quote
Avatar for Air-Tech Air Conditioning & Heating Inc
Air-Tech Air Conditioning & Heating Inc
4.5(
202
)

Serving San Dimas, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"It was over 90 degrees outside and the A/C was not blowing cold air. I called and explained it was for my 85 year old mother who was in home Hospice with end stage Parkinson's. I was worried she may get a heat stroke. They scheduled a service tech to visit in a timely manner. The service tech called an hour before the scheduled appointment to let me know he was on his way. Mark (service tech) was very professional and friendly. He not only got the A/C compressor to work but checked the Freon pressure and went in the basement to inspect the remainder of the equipment. He explained what might need replacing in the near future. Now I am not worried about my mother getting heat. I highly recommend this company for any heating and cooling repairs."
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+8

Response time2 hrs
48 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Northstar PHAC, Inc.
Northstar PHAC, Inc.
4.5(
128
)

Serving San Dimas, CA and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"The Tech went above and beyond to do my inspection and service. I did nor buy the yearly maintenance plan and I did not buy the $190. furnace filter ($20) at Home Depot. I had and still have a problem with the system. It makes a growling noise every 2 minutes or so. Thanks so much, anyways."
FURNACE AND COIL
new furnace
Our Beautiful Installs
Our Beautiful Installs
Our Beautiful Installs

+29

Response time3 hrs
Response rate93%
4 neighbors recently requested a quote
Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
40
)

Serving San Dimas, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"They show up on time and that is a big plus in my book! Their work is impeccable and cleanup is as well they call and remind me when my service is due their price is good. When they leave, you have a smile on your face and your air conditioning and heating will work or they will find out why not. Highly recommend this company"
Furnace Before
AC After
Furnace After
AC Before
Before - Furnace

+83

Response time3 hrs
Response rate98%
45 neighbors recently requested a quote
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Showing 1-10 of 272
FAQs for central a/c service or repair projects in San Dimas, 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 San Dimas, 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.