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TRUSTED BY NORTHRIDGE, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon519
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Northridge

Avatar for A/D Air Conditioning & Heating, Inc.
A/D Air Conditioning & Heating, Inc.
5.0(
20
)
Central A/C - InstallDucts & Vents - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+2 more

Serving Northridge, CA and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

A/D Air Conditioning & Heating, Inc., a licensed, bonded California contractor, has been specializing in providing quality installation, maintenance, service and repair of air conditioning and heating systems to its clients in the Los Angeles, San Fernando Valley and surrounding areas since 1980. Over the past 30 years, we have developed a specialization in the installation of such systems for developers and builders of high end custom homes. In addition, we provide these services for all types of residential and commercial applications.

Response time6 hrs
10 neighbors recently requested a quote
Recommended by21%of homeowners
Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
5.0(
21
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+2 more

Serving Northridge, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Haroon Sayed was great. He came by, assessed my issues with the furnace, thoroughly explained everything to me and provided me with my options on repairing or replacing the system. He was very professional & friendly man,and Highly recommend them if AC/Furnace issues"
My jobs
My jobs
My jobs
1 neighbors recently requested a quote
Avatar for Belle Air Services
Belle Air Services
4.7(
70
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+21 more

Serving Northridge, CA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I highly recommend Belle Air Services! From the first moment I called to get a quote, to the moment they finished the job, I could not have asked for better customer service, top notch work, and competitive pricing. They communicated with me all throughout the process, made sure I understood everything that would be done, were on time, protected my home and were clean. They even worked very well with my HOA (who is very tough!). And to top it off, they didn't try to up-sell me as other HVAC contractors have in the past. So pleased that I have found this HVAC company!!"
VRV - Multizone Comfort
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+9

Response time1 day
Response rate100%
5 neighbors recently requested a quote
Avatar for Around The Clock Heating & Air Conditioning, Inc.
Around The Clock Heating & Air Conditioning, Inc.
4.5(
836
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+12 more

Serving Northridge, CA and surrounding areas

Approved

In business since 1967

Free estimates

Emergency services offered

"My HVAC unit stopped producing heat so I called the folks at around the clock. They offered to come out the same day and after taking a look up on our roof determined it was a faulty control board. We talked a little about the lifespan of the unit and that while it was probably going to need to be replaced in the next 5 years or so, it made more sense to simply replace the board today. So he scheduled an appointment for the following day to come back with the replacement board. 1 day later and 15 minutes of work and I have heat again."
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+10

Response time1 day
39 neighbors recently requested a quote
Recommended by92%of homeowners
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Heating and Air Conditioning questions, answered by experts

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Some units have a dedicated "reset" button; if yours does, press and hold it for three to five seconds. If your air conditioner doesn't have a reset button, or if you are resetting it after a power outage, leave the circuit breaker off for at least 30 minutes to allow the system to reset itself. Afterward, turn the power back on at the breaker, turn on the AC from the thermostat, and set it to "cool" to test the system.

While it is possible to add Freon to your AC unit yourself, it is not recommended. In fact, the U.S. Environmental Protection Agency (EPA) prohibits the handling of Freon without a license. Freon is a dangerous gas that can cause irreversible damage to your AC or yourself if not installed correctly. It is worthwhile to hire a professional to add Freon to your AC.

Yes, a frozen AC unit can affect your indoor air quality since the reduced airflow won't be as effective at removing air pollutants, like dust and other allergens. Additionally, ice around the unit can create excess moisture, leading to mold and mildew that can damage your home if you don’t catch it early.

The Northridge, 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.