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TRUSTED BY OAK HILLS, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon107
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Oak Hills - Updated Nov 2026

Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,518
)
Air Ducts & Vents - Clean

Serving Oak Hills, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Great. My daughter contracted Air Duct Professionals to do her home. James, the technician, was professional, knowledgeable and did a quality job. I contacted Air Duct to do my home and requested James. James arrived on time and did an excellent job. He also helped me with a leak with my HVAC Condenser and diagnosed and fixed the issue."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time1 day
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for MSP Heating and Air, LLC
MSP Heating and Air, LLC
4.9(
328
)
Central A/C - Service or RepairAir Ducts & Vents - CleanThermostat - Install or Replace+3 more

Serving Oak Hills, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Angel was the first one to come out and ran the diagnostics on our old AC unit. With the use of a camera, he showed us the rust, decay and water damage inside. His knowledge was vast, and, if the pictures weren't enough, he was upfront and honest that we should replace the entire system before more damage was done. Also, compared to other HVAC specialists' quotes that we received none were better than MSP's. It felt great knowing that we got a great deal. Within a few days, a mighty team of two, Nate and Jose began replacing our ancient AC with a more powerful one that would cool our 2-story house from top to bottom. The guys were courteous, professional, and extremely hard working. Besides the excellent job of cleaning up, they also installed a new thermostat and took the time to show my wife and I how to use it. In the end, no one like's when their AC breaks down, especially during a hot California summer, but Angel, Nate and Jose saved the day. So to those 3 guys, thank you for keepin' us COOL!"
duct job all R-8 ducting
4 Ton GOODMAN Furnace
customer Vlastos
duct job all R-8 ducting
furnace install

+67

Response time4 hrs
28 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Exclusive HVAC
Exclusive HVAC
4.9(
12
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairElectrical Baseboard or Wall Heater - Repair+5 more

Serving Oak Hills, CA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Immediately, Patrick responded to my service inquiry. Within 3 hours he was on the job. He thoroughly inspected my HVAC system. Recommendations were submitted for further problem resolution. Now, I simply have to find a different type of professional to complete the job. Deeply satisfied with Pat's work and system analysis. Recommended without reservation."
new furnace
Response time5 hrs
Response rate100%
Recommended by100%of homeowners
SoCal Climate Control - Inland Empire
4.2(
404
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+13 more

Serving Oak Hills, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"It was installed with a kink in the condensation hose and was not aware that it leaked under our hallway wood floor. This was June 2022. I paid to have a leak detection company come out and say the floor was OK. In August 2022, we ran HVAC for a couple of days during the heat wave and water came out of the HVAC unit, ruining our hallway wood floor. It is 10/29/2022 and we still have not heard from their office on how they are going to fix our floor."
52 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for West Country HVAC
West Country HVAC
5.0(
5
)
Central A/C - InstallDucts & Vents - Install or ReplaceGas Furnace / Forced Air Heating System - Install+5 more

Serving Oak Hills, CA and surrounding areas

Approved

In business since 1980

Free estimates

Credit card accepted

West Country HVAC has been providing the High Desert and its surrounding areas with quality heating and air conditioning service, installation and repair for over 40 years. \n \nWhether your needs are for your home or your business, West Country HVAC's experience, knowledge and constant training allows us to solve any problem that we may encounter. \n \nWith a full range of heating, ventilation and air conditioning services, we are proud to provide quality services that keep our customers comfortable. \n \nLicensed, bonded, insured, background checked employees and factory trained.

Furnace
Before- Furnace
Before- Furnace
AC Maintenance
AC Repair

+18

Response time7 hrs
17 neighbors recently requested a quote
Avatar for Vahik Stepanian
Vahik Stepanian
4.5(
113
)
Thermostat - Repair or ReprogramElectrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - Repair+1 more

Serving Oak Hills, CA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

Thank you for your business. I, Vahik Stepanian, have been taking care of my customers electrical needs for over twenty years. Although I am a master electrician, I have taken care of everything from cabinet installations and kitchen remodels to heating and air conditioning needs. For your electrical needs, we are available 9097273935 for 24 hour emergency service. Call me today!

Upgrading main Panel
Upgrading Main Panel
Replacement Of Cooling Unit
Replacement Of Cooling Unit
Replacement Of Furnace

+70

Response time4 hrs
Response rate89%
13 neighbors recently requested a quote
Avatar for Northstar PHAC, Inc.
Northstar PHAC, Inc.
4.5(
128
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceGas Furnace / Forced Air Heating System - Repair

Serving Oak Hills, CA and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"I am a tool and diemaker and work with engineers all along my job. I think Northstar has the greatest team in HVAC I have seen. They all work well together and are very experienced. I will hire them again as I know it will be done correctly and on time."
FURNACE AND COIL
new furnace
Our Beautiful Installs
Our Beautiful Installs
Our Beautiful Installs

+29

Response time3 hrs
Response rate94%
21 neighbors recently requested a quote
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Showing 1-10 of 382
Heating and Air Conditioning FAQs, answered by experts

Deciding whether to replace just the AC coil or the entire system depends on the age of your unit and the overall cost. Replacing a coil is less expensive than a full system replacement, but it can still be a pricey repair. If your HVAC system is relatively new and still under warranty, or if the replacement cost is significantly lower than a new system, replacing the coil can be a worthwhile investment that restores efficiency and extends the unit's life. However, for older systems (nearing the end of their 10-15 year lifespan) or those with extensive damage, it is often more cost-effective to replace the entire AC unit. Mismatched coils in an older system can lead to inefficiency and future breakdowns, so a full replacement ensures optimal performance and avoids further costly repairs.

Most AC repair technicians will take between two and six hours to carry out repairs, depending on the work needed and the accessibility of the unit. For example, recharging refrigerant lines should take one to two hours to service, while replacing a compressor, blower fan, or other major components can take five to eight hours. You can ask your AC repair technician how long they expect the job to take, but just in case, you should plan on being home and available for most of the day.

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

Most units are designed only to cool the house down to 20 degrees less than the temperature outside. This means that if it’s 99 degrees Fahrenheit out and you’re trying to cool your home down to 65 degrees, you’ll notice your AC is struggling. 

Lower the blinds on all your windows, turn on your ceiling fans, and keep the thermostat at a consistent temperature to help your AC do its job. Investing in an HVAC maintenance plan also helps because pros will come out to inspect and tune up your unit regularly, keeping it in optimal working condition.

While an air conditioner can temporarily run with a dirty filter, it is not recommended as it will not work efficiently. A dirty filter forces the system to work harder to circulate cool air, leading to reduced airflow, increased wear and tear, and higher energy bills. This added strain can cause the air conditioner to overheat or fail prematurely. Furthermore, a clogged filter may allow dust and dirt to accumulate in your ductwork, negatively impacting air quality. It is more cost-effective to clean or replace filters regularly than to pay higher utility bills and risk needing to replace the entire AC unit.

The Oak Hills, 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.