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4.6

(357 reviews)

Top-rated heating and air conditioning pros.

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Avatar for Bob Jenson Air Conditioning And Heating Inc
Bob Jenson Air Conditioning And Heating Inc
4.9(
174
)

Serving Oceanside, CA and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Great service all around from Bob Jensen. Free in home estimate with no pressure sales tactics. When it came to the installation, it was nice to know that they use their own crew, they do not subcontract out the work, so you know what you're going to get. On the day of installation, the sales person came also to ensure that we all understood what was going to happen. The install technicians, Tony and Sammy, took time to ensure that everything was done correctly and answered all the questions I had. I would highly recommend this company for any of your HVAC needs."
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+47

Response time1 day
80 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Airmerica Air Conditioning & Heating
Airmerica Air Conditioning & Heating
5.0(
34
)

Serving Oceanside, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"We hired Airmercia Air Conditioning & Heating to evaluate our heating system and propose repair solution. Ryan was very professional and punctual. He did not make any force sales. He just offered various repair and replacement solutions and explained pros and cons for each one. We decided to replace our furnace and duct system. Ryan did an excellent Job!! I highly recommend him for your HVAC project."
Ultra Lo NOx 80% furnace and coil with Air-Wave air cleaner and 2" media filter
Outdoor unit feeding (5) indoor wall mounts
Heating & A/C Project
Single stage 14.3seer2 AC condenser
Outdoor unit feeding (5) indoor wall mounts with electrical ran by us from panel.

+6

Response time8 hrs
27 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,517
)

Serving Oceanside, 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."
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+11

Response time2 days
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AireCare Heating and Air
AireCare Heating and Air
5.0(
39
)

Serving Oceanside, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Michael, Enrique, Raul & Luis are absolutely first class. I recommend AireCare for all HVAC needs. We got a new furnace & AC unit, & we definitely got more than what we paid for. OUSTANDING!!"
San Marcos Full System
San Marcos Full System
San Marcos Full System
San Marcos Full System
San Marcos Full System

+8

Response time6 hrs
Response rate91%
22 neighbors recently requested a quote
Avatar for Cool Air Technologies Inc
Cool Air Technologies Inc
4.9(
493
)

Serving Oceanside, CA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"We just had a new HVAC system installed in our home in Aliso Viejo. The contractor was Cool Air Technologies, Bill McIntosh, (714)863-0626. We were very impressed with the new unit put in the attic and back yard, the workmanship, the professionalism, the quick response time to get our appointment, the testing of the new units before they left, the lessons for us on how to use it, and the complete clean up and hauling every piece of the old unit away when they left. They even installed new air vents/registers in every room and air filters! Very impressive and highly recommended to everyone! [*** Link removed ***]"
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Response time2 days
7 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Liberty Plumbing Heating Air Conditioning Inc
Liberty Plumbing Heating Air Conditioning Inc
4.9(
208
)

Serving Oceanside, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"My 26 year old central air system went out on a Thursday night.  I called Liberty Friday morning and the sales manager for Liberty came to the home the same afternoon. After discussing details, options and answering all of my questions, I accepted their contract to replace my 5 ton ac and furnace. The price was fair and all of the work was completed the very next Tuesday.  Part of the installation involved enlarging the air return space under the furnace closet.  This improvement, along with the higher efficiency AC unit should keep me smiling this summer.  They also provided a programmable thermostat and set it up so the house will always be at my preferred temperature.  I won't even have to switch between cooling and heating when the seasons change.  I couldn't be more pleased with the outcome and will definitely call Liberty for any plumbing problems I might have in the future.
"
Response time8 hrs
Response rate98%
17 neighbors recently requested a quote
Avatar for All Day Heating And Air Conditioning
All Day Heating And Air Conditioning
5.0(
16
)

Serving Oceanside, CA and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: True professional

"My A/C Unit stopped working, I called All Day Heating & Air Conditioning, they came by later that day and replaced my start capacitator, they had a couple on the truck that they wired together to simulate the bad one and they were all done in less than 1 hour all is good A/C works fine now.
"
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+14

Response time4 hrs
Recommended by100%of homeowners
Avatar for Personal Plumbing, Heating & Cooling
Personal Plumbing, Heating & Cooling
4.5(
359
)

Serving Oceanside, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Unfortunately, I needed an HVAC company to fix my AC during a heat wave. Most companies were 5+ days out before they could even diagnose our problem. Called 3 highly visible companies, from their marketing, who said they wouldn't even work on our unit. I went with a referral from a neighbor, mistake. This company took a week to get to us then the tech went MIA for 5 days with no contact when he said he would be back tomorrow with parts. Won't mention their name as there could have been multiple uncontrollable reasons why. I then did a lot of research on different companies across multiple review websites (including Angies) and Excel Air stood out. Once I spoke to the office staff, great experience, they had a tech out to our home in 2 days with our problem diagnosed. Our tech's name was Lucas who was efficient with his time, talked me through what was going on and gave us our estimate which we were happy to move forward with. Lucas fixed our problem in under 20 minutes. Me being me, I watched each step and saw the quality work. He even put in a fuse to ensure the same problem didn't happen again to our transformer. Once he fixed everything and got our new thermostat power, our AC has been working perfectly ever since. I'm now a really big supporter of Excel Air. Their office staff worked with our insurance company after hours and actually updated us (what company does this these days) the entire way. I can't tell you how impressed I was from their office, Lucas and most of all their successful resolution of our problems with our AC. Thank you Excel Air!"
Mini Split System Install Oceanside
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+12

Response time1 day
Response rate96%
23 neighbors recently requested a quote
Avatar for Airtime Plumbing Heating & Air
Airtime Plumbing Heating & Air
4.8(
28
)

Serving Oceanside, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"Technician Angel came on time. He first cleaned our HVAC unit, checked the wirings & parts & performed tests to ensure the unit is running according to standards. He inspected the Air ducts, vents even the attic. He explained everything and showed us the pictures that he took & the results on HVAC heating and cooling tests that were done. Overall a very good job done by Technician Angel I told him to come back after 6 months. Already recommended Airtime Heating & Cooling to my neighbor. 5 STARS"
tankless water heater
Chacon house
Chacon house
Chacon house
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+55

Response time9 hrs
Response rate100%
93 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

You need to know the square footage of your home first. Multiply that number by 20, which will get you the BTUs (British Thermal Units) needed to cool your home efficiently. Homes up to 1,000 square feet usually need a 1.5-ton unit; homes 1,000 to 1,200 square feet usually need a 1.75-ton unit, and homes 1,200 to 1,400 square feet usually need a 1.9-ton unit. Talk to a local pro for more specific advice on your home. 

Yes, a dehumidifier and air conditioner can be used simultaneously in a home. A dehumidifier can bolster an air conditioner’s efficiency. Typically, a dehumidifier is used when the air conditioner alone cannot keep a home’s humidity levels at a comfortable indoor humidity level, which should, ideally, be between 30% and 50%.

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.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

Winterizing can still help you save money on energy costs and help prepare your AC for its work next year when you turn it back on. We suggest planning for at least some maintenance, even if winters are mild in your area.

The Oceanside, 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.