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AC units after being repaired by a local pro

5 Best AC Repair Services in Carlsbad, CA

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Written By Max Peterson|Last Updated: May 18, 2024

In warm conditions, a summertime air conditioner (AC) failure can be a disaster. If you find yourself in need of AC repair in Carlsbad, don't fret - we have you covered with who to call next. Discover Carlsbad's top HVAC repair and replacement companies, and read further about what your home might need.

Top AC Repair Companies in Carlsbad, CA

Action Air Conditioning & Heating Logo

Action Air Conditioning & Heating

Based on 2,650 customer reviews.

Services Offered

Emergency ServicesDuctlessFurnace RepairAc InstallationDuct CleaningAc RepairIndoor Air QualityMaintenanceFurnace Installation


  • Free quote
  • Informative resources
  • Reliable customer support
130 Bosstick Blvd, San Marcos, CA 760-309-5790 actionac.net
We Care Plumbing, Heating and Air (fka Oak Island Heating & Air Conditioning) Logo

We Care Plumbing, Heating and Air (fka Oak Island Heating & Air Conditioning)

Based on 691 customer reviews.

Services Offered

Furnace InstallationMaintenanceZoning SystemsFiltrationAc InstallationIndoor Air QualityAc RepairDuctless


  • Free quote
  • Clear pricing policy
  • Prompt service delivery
445 Ryan Dr # 101, San Marcos, CA 760-334-5747 oakislandac.com
Cool Air Solutions Heating and Air Conditioning Inc. Logo

Cool Air Solutions Heating and Air Conditioning

Based on 290 customer reviews.

Services Offered

Furnace InstallationEmergency ServicesBoiler InstallationAc InstallationIndoor Air QualityMaintenanceVentilationAc RepairFiltration


  • Clear pricing policy
  • Informative resources
  • Free quote
450 S Melrose Dr Box 53, Vista, CA 760-205-3756 coolairsolutions.com
Major League Comfort Systems Logo

Major League Comfort Systems

Based on 133 customer reviews.

Services Offered

Furnace RepairIndoor Air QualityDuctlessAc RepairAc InstallationMaintenanceFurnace InstallationFiltrationInspection


  • Reliable customer support
  • Informative resources
  • Prompt service delivery
4055 Oceanside Blvd Space U, Oceanside, CA 760-945-0975 majorleagueac.com

More Local Hvac Companies

Airmerica Air Conditioning & Heating Inc.

User Reviews: 4.6/5 

750 Breeze Hill Rd
Vista, CA 92081

Champion Air Conditioning & Heating

User Reviews: 4.5/5 

120 N Pacific St STE A9
San Marcos, CA 92069

Pacific Cool Air

User Reviews: 4.4/5 

528 S Coast Hwy #202
Oceanside, CA 92054

Alanis Air

User Reviews: 4.7/5 

1937 Julie Dawn Pl
Escondido, CA 92026

Five Star Service Company

User Reviews: 4.7/5 

1948 Don Lee Pl #1
Escondido, CA 92029

My Guy Heating & Air

User Reviews: 4.6/5 

934 S Andreasen Dr Suite H
Escondido, CA 92029

Free Air Mechanical Inc.

User Reviews: 4.7/5 

1157 W Mission Ave
Escondido, CA 92025

Jims Heating and Air Conditioning

User Reviews: 4.2/5 

10112 Vista Montanoso
Escondido, CA 92026

Big City HVAC & Appliance Repair

User Reviews: 4.5/5 

3534 Caminito El Rincon UNIT 41
San Diego, CA 92130

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 Carlsbad
Average Max Temp Percentile:87.4%
August Average Max Temp:86.5°F
Climate Zone:Hot-Dry
Average Energy Cost:$0.26/kWh
Median Year Houses Built:1984
Average Heat Waves per Year:2.77

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

HVAC technicians have the expertise to service most air conditioner types, but knowing more about what you have can be beneficial. Below, we'll explain each of the common AC units.

  • Window ACs: Window air conditioners are a popular choice for Carlsbad condos, townhomes, and apartments. These compact, affordable units are designed for cooling single rooms and small spaces, and they fit snugly in a window frame or dedicated wall slot. Many window-mounted air conditioner users install their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Portable air conditioners: As the name implies, portable air conditioner units 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 a common choice for condos, apartments, or individual rooms.
  • Ductless mini-split: Ductless mini-split air conditioner units have an outdoor unit and multiple interior units, with no ductwork required. They offer higher energy efficiency, flexible installation options, and individual room temperature control.
  • Split ACs: Split air conditioners 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 precise, consistent temperature control. They feature a central unit that cools air from outside, purifies it, and sends it through ducts to various rooms in your home.

How to Choose Your Carlsbad AC Repair Service

With Carlsbad's extreme heat, AC problems are critical to fix for your safety and comfort. However, don't rush to sign a contract until you're sure a company is the best fit for you. We recommend following these steps in your research.

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 accredits businesses that respond to complaints professionally and honor their warranties.

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

Compare Estimates

We suggest getting contacting at least three different companies to find the best cost and services. Get a written copy of each quote, and learn more about emergency repair availability, permitting fees, installer guarantees and manufacturer warranties.

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Frequently Asked Questions About AC Repair in Carlsbad

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

Your AC system 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 switching out the compressor will be more expensive.

See the average costs for common AC repairs below.

Common RepairAverage Cost
Clogged air filter$64–$171
Electrical circuits$200–$250
Drainage problems$100–$150
Refrigerant leak$400–$1500
Frozen condenser coils$1,285–$3,855
Fan or air blower issues$150–$200
Compressor replacement$600–$1,628

How do I know if my air conditioning system needs repair?

Here are a few of the frequent AC issues you might face: It's best to contact a professional HVAC technician if you encounter any of these problems.

When is the best time to replace an AC unit?

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 Carlsbad'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 blocked 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 defective coil.

Is hiring an HVAC company better than doing the repair on my own?

Yes, it's better to get a new air conditioner professionally installed. Most units use complicated wiring and piping that can overwhelm even a seasoned do-it-yourselfer. They also use chemical coolants that could pose health hazards if they spill or leak. With their training and equipment, the right technician will set you up for success.

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