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TRUSTED BY LAKE FOREST, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon962
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Lake Forest

Avatar for Total Home Environmental HVAC Co.
Total Home Environmental HVAC Co.
4.7(
98
)
Central A/C - Service or RepairElectrical Baseboard or Wall Heater - InstallGas Furnace / Forced Air Heating System - Repair+6 more

Serving Lake Forest, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Gordon, Harrison and Louis did an absolutely fantastic job with installing a brand new HVAC system into my old house. The house was not designed to include AC so they had to be very thoughtful in the process of figuring out the best way to install all the equipment. They were on time every day and always kept me informed any issues and next steps.. They did it and we will enjoy the benefits of keeping cool this summer."
Technician at Service Residence
Installing UV Sterilization Light
Installing UV Bulb to fight Covid
Removing tools from stocked truck
Stocked Repair Trucks

+17

Response time2 hrs
Response rate92%
101 neighbors recently requested a quote
Avatar for Cool Air Technologies Inc
Cool Air Technologies Inc
4.9(
493
)
Central A/C - InstallCentral A/C - Service or RepairDucts & Vents - Install or Replace+6 more

Serving Lake Forest, CA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"I’ve had the pleasure of working with Bill and Cool Air Technologies on several occasions and they never disappoint. They’ve done a HVAC replacement as well as an entirely new HVAC system install with impeccable results. They were professional and communicative; answering all my questions and working through any issues promptly. I will look nowhere else for my HVAC needs and highly recommend them to anyone considering their services."
Additional Photos
9 neighbors recently requested a quote
Recommended by98%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 Lake Forest, CA and surrounding areas

Approved

In business since 2011

Customers say: Quick response

"I was out of town when my air conditioner stopped working. My mother called 2 companies to check it out. The repair men were interested in selling us a new unit not fixing it. I found NT Electric & HVAC online through Home Advisor while I was out of town. The company had good reviews. I called Nathan and scheduled an appointment. He assessed the problem and fixed it! I would highly recommend Nathan and his company. He does what s best for the customer. His prices are fair and reasonable. I would use him again."
Power supply
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for HD MECHANICAL INC
HD MECHANICAL INC
5.0(
27
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Lake Forest, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"THE OWNER; CHRIS ROBINSON WAS AMAZING, EXCEPTIONAL CUSTOMER SERVICE, GREAT PEOPLE SKILLS. UNBEATABLE PRICING ON UNITS & LABOR I HAD BEEN QUOTED VERY HIGH BY 4 OTHER COMPANIES, HD MECHANICALs PRICING WAS HONESTLY EXTREMELY AFFORDABLE. HIGHLY RECOMMENDED FOR ALL YOUR HVAC NEEDS!!"
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Additional Photos

+14

66 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Trabuco Air
Trabuco Air
4.6(
130
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - Repair - For BusinessGas Furnace / Forced Air Heating System - Repair+1 more

Serving Lake Forest, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Sam, who came out to give me an estimate for a new system, found out that the old fan motor was the culprit and recommended that we just repair the motor. He explained things in detail, helped us to save money in a genuinely sincere attitude, I was impressed how good his service was, and I recommend him for any HVAC issues. I will be using him in the future."
Response time5 hrs
Recommended by94%of homeowners
Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
4.9(
270
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Lake Forest, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

The industry's best technicians make the happiest customers. Turn to the pros at All City Plumbing, Air, & Electrical for all of your plumbing, HVAC, and electrical needs. Proudly serving San Bernardino, Riverside, Los Angeles, and Orange Counties. We have over 5000s 5 star reviews across the web from our thrilled customers. Our company goal is to make sure that we have 100% customer satisfaction. We have options and payment plans that can fit in everyones budget. We provide free estimates and you only pay when you're happy. It's no surprise we've received the Angie's List Super Service Award six years in a row! Established in 2009. ACP was created to deliver exceptional service with the highest quality of craftsmanship. We guarantee you will be happy with our services in that we offer a money back guarantee. Our technicians are regarded by their peers to be some of the best in the industry. Our service experts are continuously trained. There isn't a plumbing or hvac problem we can't solve. We have the experience, knowledge and focus to solve any problem you may have. Give us a call today and let us earn your confidence.

Additional Photos
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Additional Photos

+42

13 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for FIRST CLASS COMFORT HVAC LLC
FIRST CLASS COMFORT HVAC LLC
5.0(
19
)
Central A/C - InstallHeat Pump - Install or Replace

Serving Lake Forest, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Thank you First Class They did a full service on my unit and everything was handled quickly and efficiently. The team was on time, respectful, and clearly knew what they were doing. Highly recommend them for anyone needing reliable HVAC work! Thanks boys"
FCC HVAC
FCC HVAC
FCC HVAC
FCC HVAC
FCC HVAC

+26

23 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

HVAC pros recommend that you replace your AC filter every one to three months to maintain optimal indoor air quality and ensure your HVAC system operates efficiently. However, factors such as filter type, household size, and environmental conditions may influence the frequency of replacement. Regular filter changes help prevent debris buildup, maintain airflow, and prolong the life span of your air conditioning unit.

When deciding whether to repair or replace your air conditioner, several factors should be considered. It is generally worth repairing the unit if it's less than 10 years old, the warranty is still active, and you're dealing with a one-off issue. Most central AC units last about 15 years, while window units last 8 to 10 years. If your unit is approaching or has surpassed the 10-year mark and requires frequent or costly repairs (e.g., over $5,000), replacement is often the more sensible long-term investment. For older, inefficient, or out-of-warranty units experiencing multiple problems, replacing it is typically the better choice.

Your AC might not cool after a power outage because of a tripped circuit breaker, blown fuse, or damage to the compressor or capacitor. If you notice your AC not working after a power outage, in most cases, the breaker has tripped or the system has built-in brownout and blackout protection. Reboot the AC by turning it off at the thermostat, resetting the circuit breaker, and waiting 30 minutes to turn the AC on again. 

Most AC repair technicians will take between two and six hours to carry out repairs, depending on the work needed and the accessibility of the unit. For example, recharging refrigerant lines should take one to two hours to service, while replacing a compressor, blower fan, or other major components can take five to eight hours. You can ask your AC repair technician how long they expect the job to take, but just in case, you should plan on being home and available for most of the day.

While it is possible to add Freon to your AC unit yourself, it is not recommended. In fact, the U.S. Environmental Protection Agency (EPA) prohibits the handling of Freon without a license. Freon is a dangerous gas that can cause irreversible damage to your AC or yourself if not installed correctly. It is worthwhile to hire a professional to add Freon to your AC.

The Lake Forest, 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.