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AC units after being repaired by a local pro

5 Best AC Repair Services in National City, CA

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

Find yourself in need of an AC repair in National City? An air conditioner (AC) breakdown can become a massive obstacle in the summer, especially in a community as hot as National City. These top-rated National City contractors can help you with AC repair or replacement, keeping the job simple, quick, and economical.

Top AC Repair Companies in National City, CA

Fabulous Homes Heating & Air Logo

Fabulous Homes Heating & Air

Based on 37 customer reviews.

Services Offered

DuctlessFurnace InstallationAc InstallationAc RepairDuct CleaningMaintenanceIndoor Air Quality


  • Clear pricing policy
  • Reliable customer support
  • Free quote
7290 Mohawk St Lot A, San Diego, CA 619-889-5834 fabuloushomesheatingandair.com
Comfort Air Conditioning and Heating Logo

Comfort Air Conditioning and Heating

Based on 104 customer reviews.

Services Offered

Ac RepairMaintenanceAc InstallationFurnace InstallationFurnace RepairDuctless


  • Clear pricing policy
  • Free quote
  • Informative resources
7318 Conestoga Ct, San Diego, CA 858-519-8003 comfortacandheating.com
Same Day Heating & Air Conditioning Logo

Same Day Heating & Air Conditioning

Based on 851 customer reviews.

Services Offered

Ac RepairFurnace InstallationDuctlessInspectionAc InstallationEmergency ServicesIndoor Air QualityFiltrationMaintenance


  • Free quote
  • Reliable customer support
  • Informative resources
9771 Clairemont Mesa Blvd Suite E, San Diego, CA 619-486-3325 samedaysd.com
Jackson & Foster Heating and Air Conditioning Logo

Jackson & Foster Heating and Air Conditioning

Based on 142 customer reviews.

Services Offered

Ac InstallationFurnace InstallationIndoor Air QualityAc RepairDuctlessMaintenance


  • Informative resources
  • Clear pricing policy
7574 University Ave, La Mesa, CA 619-667-4328 jacksonfoster.com

More Local Hvac Companies

Duct Dynasty

User Reviews: 4.6/5 

4401 Twain Ave #6
San Diego, CA 92120

THA Heating, Air, & Plumbing, Inc.

User Reviews: 4.6/5 

3240 F St
San Diego, CA 92102

Friar's Plumbing Heating & Air

User Reviews: 5/5 

5555 Magnatron Blvd Ste G
San Diego, CA 92111

Pacific Heating & Air Conditioning

User Reviews: 4.6/5 

406 S Johnson Ave
El Cajon, CA 92020

Progressive Heating & Air

User Reviews: 4.6/5 

4828 Ronson Ct
San Diego, CA 92111

Air Plus Heating & Cooling

User Reviews: 4.6/5 

9484 Chesapeake Dr Ste. 806
San Diego, CA 92123


User Reviews: 5/5 

1865 John Towers Ave # B
El Cajon, CA 92020

Blue Diamond Heating and Air

User Reviews: 5/5 

609 Cedar St
El Cajon, CA 92021

Clima Heating and Cooling

User Reviews: 4.5/5 

8280 Clairemont Mesa Blvd Suite 121
San Diego, CA 92111

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 National City
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:1972
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

There are a few different types of air conditioner systems on the National City market. While HVAC technicians can work with most types, knowing which one you have will streamline your company research.

  • Ductless mini-split: Ductless mini-split air conditioner units have an exterior unit and one or more indoor units, with no ductwork required. They offer individual room temperature control, flexible installation options, and higher energy efficiency.
  • Window-mounted ACs: Window air conditioners are a popular choice for National City 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 set up their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Central AC: These are the most common home air conditioners, offering consistent, precise 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.
  • Portable air conditioners: As the name suggests, 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 a common choice for condos, apartments, or individual rooms.
  • Split ACs: Split air conditioners have two main elements: one indoors and one outdoors. They provide silent operation, improved energy efficiency, ductwork options, and more cooling capability versus mini-splits.

How to Choose Your National City AC Repair Service

With the intense National City heat, AC issues are top priority to fix. However, to get the best possible outcome, it's critical to investigate 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.

You should also confirm a company has sufficient liability insurance coverage, even if your state doesn't require it. Choosing an insured company will protect you if accidents happen during work.

Read Customer Reviews

Read customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB accredits contractors that handle complaints professionally and honor their warranties.

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

Compare Estimates

We recommend 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 installer guarantees, permitting fees, emergency repair availability and manufacturer warranties.

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Frequently Asked Questions About AC Repair in National City

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

Your AC 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 replacing 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

What are some signs that I should call an HVAC repair company?

Here are some of the most 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 National City's hot average highs, the off season will usually be in the winter months when temperatures start to drop.

How many years until I should replace my AC unit?

With adequate care, your air conditioner's lifespan could be 10-15 years. Remember that parts often become obsolete as time goes on. If your installer can't find a critical replacement part, you might need to consider getting a new air conditioner.

Should my HVAC company have a private accreditation?

Private accreditations might not be required, but businesses that seek them are typically more trustworthy. The two largest HVAC trade bodies that issue certifications are the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) and Air Conditioning Contractors of America (ACCA).

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