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Best heating and air conditioning pros near La Mesa, CA

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TRUSTED BY LA MESA, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon550
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in La Mesa - Updated Nov 2026

Avatar for Bob Jenson Air Conditioning And Heating Inc
Bob Jenson Air Conditioning And Heating Inc
4.9(
175
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+19 more

Serving La Mesa, CA and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Great service all around from Bob Jensen. Free in home estimate with no pressure sales tactics. When it came to the installation, it was nice to know that they use their own crew, they do not subcontract out the work, so you know what you're going to get. On the day of installation, the sales person came also to ensure that we all understood what was going to happen. The install technicians, Tony and Sammy, took time to ensure that everything was done correctly and answered all the questions I had. I would highly recommend this company for any of your HVAC needs."
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+47

Response time1 day
130 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,518
)
Air Ducts & Vents - Clean

Serving La Mesa, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Sabaz and his assistant were prompt and cordial. They did a neat job. I will call them again to service my HVAC ducts in the attic.
Thanks guys!
"
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+11

Response time1 day
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Liberty Plumbing Heating Air Conditioning Inc
Liberty Plumbing Heating Air Conditioning Inc
4.9(
209
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving La Mesa, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Service man arrived as expected and performed the annual maintenance of the air conditioning system. The work was thorough and it was something that was familiar to me as I used to do in my younger years. With heavy use of airconditioning in the summer in CA, this is important and something we do every year.
"
Response time8 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for Sky Clean Air
Sky Clean Air
4.7(
21
)
Central A/C - InstallAir Ducts & Vents - CleanBoiler or Radiator Heating System - Install or Replace+48 more

Serving La Mesa, CA and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"I was really impressed with the service provided by Nadav and he is team. I have a thirty year old home that still had the original HVAC systems. One located in the attic and the other underneath the house. Neither of these installations was simple. The Sky Clean Air team quoted me two days to remove and install new systems. The install crew was really professional, courteous and hard working. The underneath the house install was especially difficult with a tight crawl space in a less than hospital environment. These guys were not a show up at 10 leave at 3 pm crew.......they worked long hours both days to ensure they met the promised schedule.They kept me informed any issues throughout the installation process so there were no surprises. At the end of two days we had two beautifully installed systems that now cool our 4000 sq ft house in a matter of an hour instead of the 4 or 5 the old system required. I feel that the pricing they gave me was very fair and at the end of the job I felt like I got more value than what I paid. I would certainly use them again in the future."
Air duct full of dust and debris.
Cleaned duct
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+24

Response time11 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Carini Home Services
Carini Home Services
4.7(
381
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving La Mesa, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Will came on time and came in and told me had did several of the homes in my area, so he wouldn't need to do a load-test for our home. I felt a little nervous about not doing a load test because I know too small or too big of a a/c unit both have its problem, but I took it on good faith that he knew what he was doing. He asked me what I wanted, I told him just basic a/c unit., as I wouldn't be using it much (just for very hot days). He provided me with 2 options - a complete new HVAC system ($9,545.31) or just an A/C Unit & Compressor ($7,652.31). He also explained that Carini was extremely busy and that they were 1 month out on scheduling any installations."
Using the sewer camera to inspect the inside of a customer's drains
Camera inspection through a sewer vent on a customer's roof
Hydro jet uses water at 4,000psi to clean the inside of the mainline drain which connects all the home's drains to the city's sewer system.
Using a snake we can go through the cleanouts on the side of the house.
With the cleanouts snaked, and the blockage located, we can send the hydro jet through the sewer vent and flush out the blocked drain.

+16

Response time10 mins
11 neighbors recently requested a quote
Recommended by92%of homeowners
AirMaxx, Inc.
4.4(
662
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service

Serving La Mesa, CA and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"Alex Gold of AirMaxx was personable, knowledgable, and efficient, he came on Sunday of a holiday weekend, and he quickly restored our HVAC. He explained every step, showed the cost of each step, and delivered at the quoted cost. I recommend him and his company for any HVAC issues."
Airmaxx
Airmaxx
Response time6 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Ecotech Pro Inc
Ecotech Pro Inc
5.0(
17
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or Replace+47 more

Serving La Mesa, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Excellent work. Far surpassed expectations. Highly competent & professional from initial analysis of multiple problems and engineered a solution followed by a fast, efficient tear-out and installation by terrific crew to final clean-up. Excellent value. Job was professionally done the way the original installing HVAC contractor should have done years ago. Highly recommended."
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
New Attic blow-in insulation.
Heating and Air Conditioning Project

+55

Response time1 day
Response rate100%
27 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

There are ways to detect a refrigerant leak with several different testing methods. However, most homeowners can figure out something’s wrong with their AC unit by noticing these common signs:

  • Ice forming on the evaporator coil

  • Water leaks near the AC unit

  • Frequent hissing sounds

  • Increased electric bills

  • Unit takes longer than usual to cool

  • Unit is blowing hot air

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

While Freon is mostly odorless, a Freon leak will produce a faint chloroform-like smell. Some people find that Freon's odor has a subtle sweetness to it. Some telltale signs of a Freon leak beyond odor include ice crystals on your evaporator coil, bubbling sounds, and hissing noises.  

The La Mesa, CA homeowners’ guide to heating and air conditioning services

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