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Find Central a/c service or repairers in Monrovia

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

Serving Monrovia, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I had a great experience with their central AC repair service. The technician arrived on time, quickly diagnosed the issue, and had everything running smoothly in no time. Very professional, honest pricing, and excellent workmanship. Highly recommend!"
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+24

Response time3 days
10 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)

Serving Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"We have been using AC Dave since we moved close to downtown LA in 2017. Our neighbors recommended the company when we needed some maintenance work done on our AC system. They have been providing maintenance/checkups twice a year - ever since. The customer service is great - including the folks in the office who handle the calls. In the last couple years, Leo has primarily been providing the service and does a really thorough job explaining any needed fixes. That has included an algae pad to help with the system’s water flow. I know AC Dave’s home base is pretty far from where we live. I hope he/his crew continue to work with customers in our area for years to come."
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+6

Response time7 hrs
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
4.9(
270
)

Serving Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"Hello reviewer's if you or anyone you know need plumbing services don't sleep on All city plumbing they are always in time, the work was the best work ever at an affordable price and the service man Chris was the best by far..Thanks again all city plumbing. Step.M"
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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 Monrovia, 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 Monrovia, 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
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+14

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

Serving Monrovia, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"The service I received from Air-Tech was above my expectations. Alex made the selection process effortless and the installation was fast and efficient. The folks with Air-Tech are real pros."
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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 Monrovia, 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 Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Trinity HVAC got in touch with me right away and their communication was excellent, letting me know when someone could come out and they showed up as scheduled. Chris inspected the unit inside and outside to assess the situation then thoroughly explained the problem before doing the work. He provided a follow-up email with the invoice showing the detailed items that were repaired and photos."
Furnace Before
AC After
Furnace After
AC Before
Before - Furnace

+83

Response time3 hrs
Response rate98%
45 neighbors recently requested a quote
Avatar for West Coast Chief Repair, Inc.
West Coast Chief Repair, Inc.
3.6(
1,830
)

Serving Monrovia, CA and surrounding areas

Approved

In business since 1996

Emergency services offered

Warranties offered

"Great service, took pictures of problem because I could not see it for myself and after repair showed work done. Also gave very good advise about another repair needed caused by first problem. Great, fast service. Both repair person and office personnel were wonderful."
All Major Appliance Repair
Sunset, West Hollywood
All Major Appliance Repair
All Major Appliance Repair
Response time3 hrs
Recommended by71%of homeowners
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Showing 1-10 of 292
FAQs for central a/c service or repair projects in Monrovia, 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 Monrovia, 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.