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AC units after being repaired by a local pro

5 Best AC Repair Services in Fairfield, CA

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  3. AC Repair
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  5. Fairfield
Written By Max Peterson|Last Updated: May 18, 2024

Find yourself in need of an AC repair in Fairfield? An air conditioner (AC) breakdown can become a significant discomfort in the summer, especially in a community as sweltering as Fairfield. Whether you need routine maintenance, emergency repairs, or total AC replacement, we'll highlight the best AC repair in Fairfield so you can get your home back to a comfortable temperature quickly.

Top AC Repair Companies in Fairfield, CA

Alamo Heating and Cooling Inc Logo

Alamo Heating and Cooling

Based on 93 customer reviews.

Services Offered

Ac RepairMaintenanceFurnace InstallationAc InstallationFurnace RepairDuctlessIndoor Air Quality


  • Clear pricing policy
  • Reliable customer support
  • Informative resources
380 Weatherly Way, Vacaville, CA 707-908-8540 alamoheatingandcoolinginc.com
Right Now Air & Solar Logo

Right Now Air & Solar

Based on 1,024 customer reviews.

Services Offered

Ac RepairFurnace InstallationMaintenanceDuctlessAc Installation


  • Clear pricing policy
  • Prompt service delivery
  • Free quote
821 Eubanks Dr Ste C, Vacaville, CA 707-469-3999 rightnowairandsolar.com
Cozy Home Services Logo

Cozy Home Services

Based on 129 customer reviews.

Services Offered

Ac RepairDuctlessAc InstallationFurnace InstallationIndoor Air QualityMaintenanceFiltrationBoiler Installation


  • Prompt service delivery
  • Reliable customer support
  • Clear pricing policy
875 Cotting Ln Ste H, Vacaville, CA 707-518-9443 cozyhvac.net
Renner Heating & Air Conditioning Logo

Renner Heating & Air Conditioning

Based on 89 customer reviews.

Services Offered

DuctlessAc InstallationFurnace RepairMaintenanceFiltrationIndoor Air QualityFurnace InstallationAc Repair


  • Informative resources
  • Clear pricing policy
  • Prompt service delivery
7711 Locke Rd, Vacaville, CA 707-416-9239 rennerhvac.net

More Local Hvac Companies

Precision Air Solutions

User Reviews: 4.7/5 

1090 Adams St Suite A-1
Benicia, CA 94510

Hometown Heating and Air Conditioning

User Reviews: 5/5 

4075 Nelson Ave Suite D
Concord, CA 94520

Service Champions Heating & Air Conditioning

User Reviews: 5/5 

261 Arthur Rd
Martinez, CA 94553

Mays Heating and Air

User Reviews: 4.6/5 

125 Mason Cir suite d
Concord, CA 94520

Smart Heating and Air Conditioning

User Reviews: 4.6/5 

200 Mason Cir Suite C
Concord, CA 94520

ACS Air Conditioning Systems

User Reviews: 4.4/5 

5151 Port Chicago Hwy
Concord, CA 94520


User Reviews: 5/5 

520 Garcia Ave STE G
Pittsburg, CA 94565

Hammer's Heating & Air Conditioning

User Reviews: 4.7/5 

280 Crestview Ave
Martinez, CA 94553

Connolly Heating and Air Conditioning

User Reviews: 4.7/5 

428 N Buchanan Cir #8
Pacheco, CA 94553

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

AC units after being repaired by a local pro

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Facts about Fairfield
Average Max Temp Percentile:88.9%
August Average Max Temp:92.2°F
Climate Zone:Hot-Dry
Average Energy Cost:$0.24/kWh
Median Year Houses Built:1985
Average Heat Waves per Year:0.78

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Common Types of Air Conditioners

There are a few different kinds of air conditioner systems on the Fairfield market. While HVAC professionals can work with most types, knowing which one you have will streamline your company search.

  • Ductless mini-split: Ductless mini-split AC units have an exterior unit and multiple interior units, with no ductwork required. They offer higher energy efficiency, individual room temperature control, and flexible installation options.
  • Portable air conditioners: As the name implies, portable air conditioners don't require permanent installation or ductwork. Instead, they remove hot air through an exhaust hose connected to a window or nearby vent. They're preferred for apartments, condos, or individual rooms.
  • Split ACs: Split ACs have two main elements: one inside and one outside. They provide quiet operation, greater energy efficiency, ductwork options, and more cooling capability versus mini-splits.
  • Central AC: These are the most common residential AC systems, offering consistent, precise temperature control. They feature a central unit that cools and purifies outside air and sends it through ducts to various rooms in your home.
  • Window ACs: Window air conditioners are a popular choice for Fairfield townhomes, apartments, and condos. These budget-friendly, convenient units are designed for cooling small spaces and single rooms, and they fit snugly in a window frame or dedicated wall slot. Many window-mounted AC users install their units without professional assistance, though technicians can still help with maintenance and repairs.

How to Choose Your Fairfield AC Repair Service

With the sweltering Fairfield heat, AC issues are top priority to fix. However, to get the best possible outcome, it's critical to thoroughly research different HVAC companies first. We recommend adhering to these steps as you prepare.

Confirm the Company Is Properly Licensed and Insured

California HVAC contractors need a C-20 (Warm-Air Heating, Ventilation, and Air-Conditioning) license from the Department of Consumer Affairs. The application process involves comprehensive exams on business law and practical skills.

Many states and cities also require companies to carry liability insurance. Even if your community doesn't require it, we still recommend choosing an insured company. This will protect you if an accident happens or something gets damaged.

Read Customer Reviews

Find customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB recognizes contractors that resolve complaints effectively and honor their warranties.

It's common for even the best AC repair providers to have both positive and negative reviews. Read each one carefully, and avoid a provider if most reviewers had subpar experiences.

Compare Estimates

Obtain at least three detailed, written estimates from different providers for the best price. A good estimate should list additional fees such as permitting costs. You should also ask about installer guarantees, the emergency repair process, and manufacturer warranties.

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Frequently Asked Questions About AC Repair in Fairfield

What's the cost of an AC repair job in Fairfield?

Your AC unit repair costs will hinge on the type of unit you have and the malfunctioning part. A basic repair job like sorting out a thermostat might cost $150–$250, whereas a more intricate fix like changing the compressor will be more expensive.

See the average costs for common AC repairs below.

Common RepairAverage Cost
Clogged air filter$66–$175
Electrical circuits$200–$250
Drainage problems$100–$150
Refrigerant leak$400–$1500
Frozen condenser coils$1,316–$3,947
Fan or air blower issues$150–$200
Compressor replacement$600–$1,667

What month is best for getting an air conditioner replaced?

The best time to replace HVAC systems is during the off-season, when there's less demand for HVAC technicians and costs are cheaper. With Fairfield's hot average highs, the off season will usually be in the winter months when temperatures start to drop.

What do I do if my AC is running but not cooling?

If your AC is running but not cooling, a clogged condenser coil could be the culprit. Normally, the AC’s condenser fan pulls air into the outdoor unit through the condenser coil to extract heat energy from your home. A technician can help by clearing the clog or replacing a damaged coil.

How long is my air conditioner's lifespan? When should I consider a replacement?

You won’t need to buy a new air conditioner for 10–15 years with proper maintenance. As your AC grows older, its mechanical parts might become unavailable. You'll probably need to consider new AC installation if your company can't replace a broken part.

My HVAC problem is urgent. How quickly could a company respond?

The response time can vary by company, but HVAC companies strive to handle emergency repair requests as quickly as possible. Some companies offer same-day or next-day service for these issues. While a specific timeframe might be listed in your contract, contacting the company directly is best so you can get the most accurate information.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.