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Avatar for Cool Air Technologies Inc
Cool Air Technologies Inc
4.9(
493
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Bill and Trish exceeded the expectations I had from the start. Trish is so pleasant to talk with that you forget quickly you are asking for a service and not talking to a friend. Bill is a craftsman who has many years of experience and he gets right to the point of where your problem lies. In our case the tune up for the summer was not realistic when our 30 year old AC unit had leak issues. Bill and I worked through several scenarios regarding cost of a repair and an investment in a new unit. It made sense to do a new unit and not worry about our old AC unit further breaking down and requiring more repair. Bill and Trish advised us of a cancellation that allowed the new AC unit to be installed 3 days after the service call. Bill and Trish followed through on their quote, and arrival time for installation on time. Everything I was told with a time frame was on time,accurate, and made sense to what I was receiving. Raphael and Nisho were assigned my install and they were no different regarding their punctuality and care for our house. Bill and Raphael took me through the complete process of what would be done and when the project would be finished. Raphael and his crew treated my house well making sure to drop cloths down everywhere they worked. I could not tell they did anything because of the cleanliness in which they worked. The job was made easier as Raphael helped me to clear the work area I was supposed to clear. I was running late in clearing and Raphael helped me to clear the area without complaining or having me do it on my own which was my job. After the installation Raphael walked me through our new AC and also provided valuable recommendations on how to take care of our new unit. What I must stress is everyone from Cool Air Technologies goes above and beyond what they need to in making sure you are 150% satisfied. Raphael helped me pick quality new air filters for our AC on Amazon to make sure we knew exactly what to purchase. Bill followed up that afternoon to ensure I was satisfied and encouraged any questions I might have. The AC unit performs exceptionally. The old unit if I turned it on in the afternoon to cool the house it could only drop the temperature by a degree or 2. Our new unit brought the temperature down from 78 in the house to 74 degrees in less than an hour. We still have 30 year old ducts and vents that do not allow the best air flow so this is a great improvement. Bill installed a new AC that cost me $3,000 less than what I was quoted 2 years ago from another company. My wife and I are extremely pleased with the service provide by Bill, Trish and his crew. I love they are family owned and they have your best interest at heart when they come out and do a job for you. Please use Cool Air Technologies for your service needs. It's such a pleasure when you get to deal with honest hard working local family owned companies that take pride in their work and word they give you."
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Response time2 days
7 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,517
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"great!!! second time using Air Duct Professionals - Casey arrived promptly, called in advance. Explained everything he was doing, was courteous and professional. Will definitely use this place again and again."
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+11

Response time2 days
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Ionel Firuta
Ionel Firuta
5.0(
30
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"John was incredibly knowledgeable about AC units and I had no idea what was wrong, but he assessed the situation. John was timely, fixed the issues, and I would highly recommend to anyone who needs AC repair!! Absolutely wonderful!"
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating and Air Conditioning Project
Heating and Air Conditioning Project

+19

Response time10 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Trabuco Air
Trabuco Air
4.6(
130
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Bill Walker is the tech that diagnosed my faulty condensing unit compressor to be grounded. Sounds like a good thing right? but its not. You never want to hear that. Should you ever do so you want Trabuco Air handling it. I was explained what was wrong and given options that i could comfortably choose from without just breaking the the already shaking bank. Trustworthy and reliable Bill is a cool cat and confident in his skill set. He knows air conditioning extensively and will solve your needs as well. I can finally enjoy the upstairs again thanks to Bill from Trabucco Air."
Response time5 hrs
Recommended by94%of homeowners
Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
10
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Chris analyzed my entire AC and heating system and explained in detail the pros and cons of performing additional maintenance. I greatly appreciated his description of future potential issues and his recommendations on how to mitigate them. Thank you Chris."
After: brand new furnace with industrial grade filtration system. Re-wrapped ductwork with fiberglass free wrapping and acoustic soundproof closet/return cavity.
After: 2 Stage Variable Speed Furnace installed perfectly!
After: Properly sized, energy efficient, and installed to code.
Before: Homeowner had tried multiple times to get the pilot light ignited.
Before: Old furnace not installed to code.

+31

3 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Breeze AC Solutions Inc.
Breeze AC Solutions Inc.
4.9(
16
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Great guys really took the time to fully advise us on our options. We went with service, cleaning and small repair instead of new system. Can't be happier. System works great and really nice guys who take pride in a good job . My only options for ac work from now on is from Ahl air conditioning. Nice job guy's"
24 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for FIRST CLASS COMFORT HVAC LLC
FIRST CLASS COMFORT HVAC LLC
5.0(
19
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"Very in detail description of what needed to get done and the why behind it. Awesome job, professional, answered every question on why my central AC was strong on first floor but very weak in second floor. Air handler moved from bottom floor to upstairs attic, higher capacity central AC and all ducts changed. Beautiful work done in 3 days with detailed report of what was done. Fair price for the job done. Before and after."
FCC HVAC
FCC HVAC
FCC HVAC
FCC HVAC
FCC HVAC

+28

Response time5 hrs
Response rate100%
21 neighbors recently requested a quote
Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
4.9(
270
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"I am so glad I did not try to install our new dishwasher myself. Joseph Rand came out from All City Plumbing. We had some difficult existing conditions and our technician finished the job fast, clean and made it look easy. When I call All City back to my home for another job I will request to have Joseph come out.."
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+42

Response time10 mins
16 neighbors recently requested a quote
Recommended by97%of homeowners
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Air Conditioning questions, answered by experts

Ceiling fans can be a great way to cool your home without the expensive utility bill of running an air conditioner. Plus, ceiling fans can sometimes run in both directions, pushing hot air down in winter and pulling cold air up in summer. With that said, air conditioning might be the only thing that helps if you live in a very warm climate.

While both have advantages, a split system is generally cheaper than a ducted one. Because they are less invasive to install, the labor costs are lower, and they can be more energy efficient. But, a ducted system might be worth the investment if you run it more frequently. 

The compressor is the heart of your AC system and is one of the most important parts required to keep it functioning properly. If your AC unit is making a popping, banging, clanging, clicking, or screeching sound, it could point to a problem with the compressor. If the unit is physically vibrating, that can also be an indication that your AC compressor is going bad.

There are several tell-tale signs that your AC coils need cleaning, including:

  • You’re getting higher electricity bills.

  • Your home doesn’t feel as cool as it usually does.

  • Your AC unit is running longer than usual to cool your home.

  • Your home is more humid than usual.

  • The coil is covered in frost while running.

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

The Foothill Ranch, CA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.