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TRUSTED BY FOOTHILL RANCH, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Foothill Ranch - Updated Nov 2026

Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,518
)
Air Ducts & Vents - Clean

Serving Foothill Ranch, 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."
Additional Photos
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+11

Response time1 day
2 neighbors recently requested a quote
Recommended by92%of homeowners
NT Electric & HVAC
4.7(
47
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+8 more

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 2011

Customers say: Quick response

"Nathan is very experienced and knowledgeable. He responds quickly to every text and phone call. He and his crew show up on time, work diligently, are respectful, and focused, and do all the little details like caulking and matching paint. They installed a 5 unit mini-split system and totally completed in 2 days. The price was very good and he even passed on the incentive from the manufacturer. There are always unexpected hiccups in every construction / installation job and there was no complaining, no extra charges, he just handled them quickly and efficiently. All in all, excellent work, excellent service. We highly recommend NT Electric and HVAC."
Power supply
Response time4 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
46
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceGas Furnace / Forced Air Heating System - Repair+4 more

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Trinity HVAC got in touch with me right away and their communication was excellent, letting me know when someone could come out and they showed up as scheduled. Chris inspected the unit inside and outside to assess the situation then thoroughly explained the problem before doing the work. He provided a follow-up email with the invoice showing the detailed items that were repaired and photos."
Furnace Before
AC After
Furnace After
AC Before
Before - Furnace

+83

Response time3 hrs
Response rate98%
31 neighbors recently requested a quote
Avatar for Breeze AC Solutions Inc.
Breeze AC Solutions Inc.
4.9(
16
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Repair+3 more

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"
11 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Easy Air LLC
Easy Air LLC
4.9(
26
)
Air Ducts & Vents - CleanCentral Air Cleaner - Repair or Service

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"This was the perfect contractor experience. Brian was on time, personable, and obviously experienced since he installed my Wifi thermostat when three other places I called either blew me off or would not do a wifi installation. Also, a very nice handyman who did other work for me tried to install it but could not make it work. Sok I was worried he would encounter problems, but he did the installation quickly, noting that he did not need the jumper provided by Ecobee since the furnace installer had left a fifth wire he could use. (So, he obviously knew what he was doing). He provided me with the code from the thermostat so I could set it up on my phone app. AND...he did all of this remotely while I was in a another state! Finally, what he wanted to charge was only the standard fee I would expect for an HVAC home visit. I could hardly believe it. You better believe his number is saved in my home for any future HVAC needs. Fantastic!"
Cleaned and serviced ac unit.
Cleaned Air return
Cleaned air return
Inspected Furnace
Cleaned out condensation pan.

+4

Response time6 hrs
Recommended by65%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

Air conditioners can stop working in the middle of the night for many reasons. Your local power grid might shut down late at night. Power surges can also trip your breakers if too much power is being used in the area at the time. If your AC is connected to a digital thermostat, it gets naturally cooler at night, so the outdoor temperature might dip below the automated setting to turn the cooling system off.

In most cases, you should hire a professional to carry out services on your HVAC system, as the components are complicated, expensive, and potentially dangerous to work with. However, there are a few things you can do on your own to keep your HVAC system in good condition, including changing your filters every three months, keeping the area around your outdoor condenser clear of debris and plant growth, making sure your or intakes aren’t blocked, and keeping an eye out for increased energy bills, strange noises, and unusual odors related to your equipment.

Here’s the cost formula to find out how much it’ll cost you to run a window air conditioner in your home:  Watts * (hours used) / 1,000 * (Local kWh) = daily cost of running a window unit. If you need help calculating the cost of running your window AC unit, consult an AC repair or installation pro for an accurate estimate.

The Foothill Ranch, 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.