Cool Air Tech – Orange County HVAC Contractor(714) 731-9292
Service & Estimates: Mon-Fri 8am-6:30pm | New Equipment Estimates Only Sat 8am-2pm
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Home – Cool Air Technologies Heating & Air Service Orange County2026-06-09T08:59:00-07:00

AC Repair & Service – Call Now!

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714 731-9292

Stay Comfortable – Act Now!

Call Cool Air Technologies Today

714 731-9292

AC Repair & Air Conditioning Service Orange County CA

AC Repair & Air Conditioning Service Orange County CA

Family-owned since 1996. Residential only. The longest install labor warranty in Orange County.

⭐️ Over 1,000 Verified 5-Star Reviews | CSLB #745012 | Licensed, Bonded & Insured

Cool Air Technologies Heating & Air specializes in air conditioning repair, AC maintenance and AC installation for Orange County homeowners. For nearly 30 years, we’ve kept families cool and comfortable with honest diagnostics, expert workmanship, and long-term solutions, not temporary fixes or sales pressure.

✓ Same-Day AC Repair Throughout Orange County
✓ Free Estimates on AC Replacement and New Installation
✓ Longest 10-Year Install Labor Warranty in Orange County
✓ 1,000+ Verified 5-Star Reviews
✓ Residential Homes Only — No Commercial Jobs

Residential furnace repair service in Orange County

Questions or Schedule Service

Free Estimates on New Installations

Call Us: 714 731-9292

CSLB #745012 | Licensed • Bonded • Insured

Cool Air Technologies provides residential air conditioning repair, AC maintenance and AC installation throughout Orange County, California. Services include same-day AC repair, refrigerant recharge, AC system replacement and seasonal tune-ups for homeowners in Irvine, Tustin, Newport Beach, Anaheim Hills, Yorba Linda, Brea, Costa Mesa, Mission Viejo, Laguna Niguel, Orange, Santa Ana, Aliso Viejo, Lake Forest, Laguna Hills, Foothill Ranch, Newport Coast and all surrounding Orange County cities.

Orange County HVAC Replacement Financing
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AC Repair & Air Conditioning Services in Orange County

AC Repair Service Orange County Cool Air Technologies

We strive for excellence in everything we do. Cool Air Technologies is Orange County’s most trusted family-owned residential air conditioning company, specializing in AC repair, AC maintenance and air conditioning installation that homeowners rely on for comfort, efficiency, and long-term value.

Our factory-trained technicians provide accurate diagnostics, affordable repair solutions, and expert AC installations — all backed by the longest 10-year install labor warranty in Orange County. We also offer competitive pricing and exclusive dealer specials to help you save year-round.

Need fast AC repair?
Call 714 731-9292 for same-day air conditioning repair throughout Orange County.

Heater Repair Orange County

Highly Trained AC & HVAC Technicians

    • Participate in continuous manufacturer and factory training programs
    • Attend regular industry and manufacturer workshops
    • Stay fully up to date on the latest air conditioning and HVAC technologies
    • Diagnose AC and cooling system issues quickly and accurately
    • AC efficiency evaluations for improved home comfort
    • Follow strict safety standards and industry best practices on every job
Expert HVAC Services Orange County

Expert AC Repair & Installation Services

  • Precision AC repair and air conditioning system diagnostics
  • AC system installations for new and replacement units
  • Smart and programmable thermostat repair & replacement
  • Interior airflow optimization for even, consistent cooling
  • AC system performance testing and safety checks
  • Energy-efficient AC upgrades to improve comfort and reduce costs
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HVAC Maintenance Services
AC & Furnace Repair Orange County Cool Air Technologies

Our Expert Services

Residential Air Conditioning & Heating Services in Orange County

Cool Air Tech provides complete residential AC repair, air conditioning maintenance, and HVAC installation solutions for Orange County homeowners. Our factory-trained technicians service all major brands and deliver reliable comfort year-round, whether your AC stops cooling on the hottest day of summer or your heating system needs attention in the cooler months.

Air Conditioning Repair & Service

AC not cooling or stopped working?
Call 714 731-9292 for same-day AC repair throughout Orange County.

Heating & Furnace Services

When the cooler months arrive, we have you covered for heating too. We provide:

All heating services are handled by the same residential-only, factory-trained technicians you trust for AC repair.

Knowledge, Service & Experience You Can Rely On

Cool Air Tech is built on honest service, proven expertise, and long-term customer relationships. Everything we do is designed to make air conditioning and heating service easy, transparent, and dependable for Orange County homeowners.

Best Price Guarantee

  • Deal directly with the owner and save
  • No commissioned salespeople — ever
  • Free, no-pressure written estimates
  • Strong manufacturer partnerships allow us to pass savings on to you
  • Honest recommendations based on your home, not quotas

Trusted Year-Round Comfort

  • Our promise to keep your home comfortable all year long
  • Priority scheduling for existing customers
  • Fast response when you need furnace or AC service near you
  • Residential-focused service, no commercial distractions

The Cool Air Tech Difference

  • Award-winning service recognized for price, quality, and experience
  • Family-owned and operated, we truly care and try harder
  • Highly trained, award-recognized technicians
  • Decades of real-world experience repairing, maintaining, and replacing home comfort systems
  • Focused on fixing problems correctly the first time

100% Satisfaction Guaranteed on Every Service & Installation

Cool Air Tech is an award-winning, local, family-owned residential air conditioning and heating company proudly serving Orange County homeowners since 1996. Every repair, installation, and maintenance service we provide is backed by our 100% satisfaction guarantee.

We proudly serve homeowners throughout Orange County, including Aliso Viejo, Anaheim, Anaheim Hills, Brea, Costa Mesa, Foothill Ranch, Irvine, Lake Forest, Laguna Hills, Laguna Niguel, Mission Viejo, Newport Beach, Newport Coast, Orange, Santa Ana, Tustin, Yorba Linda.

From air conditioning repair and AC maintenance to AC installation and seasonal tune-ups, we provide affordable, reliable residential comfort solutions you can trust — delivered by licensed professionals who put your home first.

Need AC repair or service today?
Call 714-731-9292 to schedule service with Orange County’s most trusted family-owned AC company.

We Repair & Service All Makes and Models.

Our factory-trained technicians service every major brand of air conditioning and heating equipment. No matter what system is installed in your Orange County home, we can diagnose it, repair it, or replace it. Lennox, Trane, American Standard, Comfortmaker, Heil, Tempstar, Ruud, Rheem, York, Goodman, Arcoaire, Bryant, Carrier, and more.

Lennox Heating & Cooling Repair Services
Trane Heating & Cooling Repair Services
American Standard Air Conditioning and Heating Repair Services
Comfortmaker Heating and Cooling Repair Services
Heil Heating and Cooling Repair Services
Tempstar Heating and Cooling Repair Services
RUUD HVAC Systems Repair Services
Arcoaire Heating and Cooling Repair Services
York HVAC Heating and Cooling Repair Services
Goodman Air Conditioning and Heating Systems HVAC Repair Services
Rheem Heating & Cooling Repair Services

01

$400 off

NEW EQUIPMENT

(Deal Direct with the Owner and Save.)

We pass our manufacturers savings on to you.
(*While Supplies Last)

Call For Details
(714) 731-9292

02

$20 off

AC & AIR CONDITIONING REPAIR

(Repairs Warrantied for 30 days)

Call For Service Now
(714) 731-9292

03

$89.95 (Reg $149.95)

TUNE UP & MAINTENANCE SPECIAL

• Ensure proper system operation
• Assess safety controls
Comprehensive evaluation to keep your system running when you need it most!

Call To Book Now
(714) 731-9292

Cool Air Technologies Heating & Air Conditioning Recent Projects

anaheim hills new ac condenser install backyard
Complete HVAC Installation in Anaheim Hills, CA
This Anaheim Hills project involved the installation of a new high-efficiency HVAC system designed to improve overall comfort and airflow in the home. The existing system was outdated and no longer performing efficiently, so we installed a new attic furnace along with upgraded ducting to ensure proper air distribution. The system was carefully configured to maximize performance while maintaining a clean and organized installation in a tight attic space.
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santa ana hvac replacement new ac condenser install
HVAC Replacement in Santa Ana / North Tustin
This Santa Ana and North Tustin project involved correcting an improperly sized HVAC system that was struggling with humidity control and overall comfort. The existing 5-ton system was oversized for portions of the home, leading to poor moisture removal and inconsistent temperatures. Our team redesigned the system layout to better match the home’s needs, splitting the load and installing a properly sized 3-ton system to serve the south side while converting the existing closet system to efficiently handle the north side.
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tempstar hvac replacement orange county ca
Complete Tempstar HVAC Replacement – Orange County
This Orange County project included a complete Tempstar HVAC system replacement featuring a new furnace, evaporator coil, duct connections, and high-efficiency cooling equipment. The upgraded system was designed to improve comfort, reduce energy usage, and provide years of dependable heating and cooling performance.
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new ac condenser installation orange county ca
Upflow Attic HVAC Installation – Anaheim, CA
For this Anaheim homeowner, Cool Air Technologies installed a new high-efficiency upflow HVAC system in the attic to replace aging equipment. The project included a new furnace, evaporator coil, and supporting components, providing improved comfort, enhanced reliability, and increased energy efficiency throughout the home.
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attic ductwork replacement orange county ca
Attic Ductwork Replacement & Reconfiguration – Orange County
This project involved the removal of asbestos-containing ductwork in a home that was more than 40 years old. After professional abatement, Cool Air Technologies installed a completely new duct system. At the homeowner’s request, the ductwork was strategically suspended and secured along the attic rafters, preserving valuable attic storage space while maintaining proper airflow and system performance.
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tempstar air conditioner installation orange county ca
Complete HVAC Replacement – Rancho Santa Margarita, CA
Due to rising utility bills and declining system performance, this Rancho Santa Margarita homeowner decided to replace their aging furnace, evaporator coil, and air conditioner. The new high-efficiency system delivers improved comfort, lower energy consumption, and dependable operation throughout the year.
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air conditioning replacement orange county ca
Air Conditioner & Coil Replacement – Irvine, CA
This Irvine homeowner had a newer furnace that was still operating properly, but the evaporator coil and outdoor condenser were more than 25 years old. Rather than replacing the entire HVAC system, we installed a new evaporator coil and condenser while retaining the existing furnace. Although matched systems are generally recommended, we are always happy to provide cost-effective solutions by replacing only the equipment necessary to restore reliable performance.
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attic hvac system installation orange county ca
Attic HVAC System Installation – Orange County
When we discovered the home’s existing HVAC equipment was more than 30 years old, the homeowner elected to replace the system with a new high-efficiency Tempstar installation. This attic-mounted system provides improved airflow, quieter operation, and enhanced energy efficiency for year-round comfort.
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high efficiency furnace installation orange county ca
High-Efficiency Furnace Installation – Orange County
After facing multiple costly repairs on a 29-year-old heating and cooling system, this homeowner chose to upgrade to a new high-efficiency Tempstar HVAC system. The replacement significantly improved comfort while reducing utility costs by an estimated 70%, delivering long-term savings and dependable performance.
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tempstar furnace installation orange county ca
Tempstar Furnace Installation – Orange County
This Orange County homeowner replaced a 28-year-old HVAC system that had reached the end of its useful life. Cool Air Technologies installed a new high-efficiency Tempstar furnace, evaporator coil, and air conditioner, providing improved comfort, reliability, and energy efficiency throughout the home.
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evaporator coil and ac condenser replacement irvine ca
HVAC system upgrade in Irvine, California, featuring a new evaporator coil and outdoor condenser paired with an existing newer furnace
Cool Air Technologies recently completed this HVAC system upgrade for a homeowner in Irvine, California. The home’s air conditioning system included a 25-year-old evaporator coil and outdoor condenser, while the furnace had been replaced more recently and remained in good working condition.
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tempstar furnace installation orange county ca
High-Efficiency Furnace Replacement in Anaheim, CA
Cool Air Technologies recently completed this high-efficiency Tempstar furnace replacement for a homeowner in Anaheim, California. The existing HVAC system was aging, inefficient, and contributing to higher-than-normal utility bills. After evaluating the home’s heating and cooling needs, our team recommended a modern high-efficiency system designed to improve comfort, reliability, and overall energy performance.
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5 Ton System Replacement in Santa Ana
This was job in Santa Ana which included removing a 5 ton system which did not remove enough humidity during ac. We redesigned and added a 3 ton system for south side of home to include new electric gas and new ductwork with cans and grills and changing 5 ton closet to 3 ton which will support the north side of the house. The New system will give better humidity control now that it is sized properly, making our customers more comfortable not to mention the electric savings which should be about 60% to 70%.
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3 Ton Changeout Irvine 1
3 Ton Changeout Irvine
Cool Air Technologies Changeout 3 Ton at Irvine
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Coil Condenser Changeout Newport Beach 3
Coil Condenser Changeout Newport Beach
Cool Air Technologies Changeout Coil Condenser at Newport Beach
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3 Ton Replacement in Tustin
3 Ton Replacement in Tustin with new remote return air insulated return
In Tustin 3 Ton Replacement with new remote return air insulated return.
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Irvine whole home hvac system replacement with ductwork 01
Heating, Ventilation and Air Conditioning System Installation
In Irvine, California, Cool Air Tech replaced the entire heating, ventilation, and air conditioning system was replaced, including the heater, air conditioning, and ducting. The old HVAC system was 25 years old.
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AC System Installation 01
Heating and Ventilation System, Ducts & Air Conditioning Installation
The heating and ventilation system was moved from the basement to the attic as part of this project. Additionally, thirteen new ducts with cans and grills were installed, and air conditioning was installed in the sixty-year-old house that had heat only prior to our work.
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tempstar hvac system ductwork replacement yorba linda 01 jpg
Tempstar HVAC System Ductwork Replacement Yorba Linda
Cool Air Technologies inspected the system in this Yorba Linda home and determined the system and ductwork were beyond repair. We replaced the entire system and ductwork.
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High Efficiency Heater Air Conditioning Replacement Anaheim Hills
Cool Air Technologies replaced two 30 year old systems with high efficiency heater and air conditioning systems in this Anaheim Hills home.
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tempstar hvac unit replacement Stanton before 02
Tempstar HVAC Unit Replacement Stanton
Cool Air Technologies found a 30 year old system in this Stanton home. Due to age and condition, we recommended changing the equipment to a more efficient and reliable system.
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Home Heating And Air Replacement
Cool Air Technologies removed and replaced a 30 year old HVAC system with a new Tempstar furnace coil and condenser for our client’s home in Anaheim. We also abated and reducted the home with new supply grills, increasing airflow by 40 percent.
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Home Air Conditioning Replacement
Cool Air Technologies removed and replaced this decades old AC system in Mission Viejo with new high performance Tempstar equipment. The homeowners already called to state how much lower their utility bills are and how quiet the new equipment is. On average, a newer system can save up to 60% on your utility bill. Here are before and after photos.
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Home HVAC Systems Replacement
Cool Air Technologies replaced two HVAC systems in this client’s home in Orange, increasing efficiency and reliability. We also replaced faulty ductwork in the attic ensuring proper airflow throughout the house.
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HVAC System Replacement Slimline Condenser
Cool Air Technologies replaced the HVAC system in this Irvine home with a new high efficiency condenser. We used a slimline condenser due to space limitations.
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Furnace Coil And Condenser Replacement Tustin
Cool Air Technologies replaced the furnace coil and condenser for this home in Tustin. We were able to quickly diagnose the problem and schedule the installation for the next day due to the extreme cold.
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Tempstar Furnace Coil And Condenser Replacement
Cool Air Technologies inspected our long term client’s home and determined the existing equipment was not sufficient for their cooling and heating needs. We were able to install a new Tempstar furnace coil and condenser, taking great care to not damage the client’s fish pond equipment the was located in the same closet. We are honored to have provided service and equipment for this client’s multiple homes.
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New Furnace Coil And Condenser Replacement
Cool Air Technologies diagnosed multiple issues with our client’s heating and air system while performing preventative maintenance. Due to projected cost of repair, the Buena Park homeowner decided replacement was the prudent financial choice. After installation of the new furnace coil and condenser, the homeowner relayed to us that his electric bill was drastically reduced. He was extremely pleased with the quality of our installation and the energy savings.
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Heating And Cooling Systems Replacement Mission Viejo
Cool Air Technologies replaced the Heating and Cooling systems for this Mission Viejo home. We were referred by this client’s son, whom we had previously provided service to. We feel honored that our clients entrust us to provide service to their family and friends.
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furnace coil and condenser replacement irvine 09a
Furnace Coil And Condenser Replacement Irvine
Cool Air Technologies replaced the furnace coil and condenser for this home in Irvine. We were one of many HVAC companies to provide a bid, and were chosen due to our no pressure proposal. The client appreciated that the owner of Cool Air Technologies came out personally to provide the bid and said they were influenced by our many 5 star reviews and competitive pricing.
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High Efficiency AC Unit Climate Friendly System Upgrade
Cool Air Technologies has been providing HVAC service to this client in Laguna Niguel for many years. We upgraded the AC unit to a higher efficiency and climate friendly system.
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hvac system replacement fullerton 11b
HVAC System Replacement Fullerton
Cool Air Technologies relocated this Fullerton client’s equipment from closet to attic. We also built a new platform in the attic and added new gas, electric, plumbing and refrigeration lines. We installed new ductwork to alleviate poor airflow from their previous system. We cut in new vent locations for more even airflow throughout the house.
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home ductwork replacement tustin 12b
Home Ductwork Replacement Tustin
Cool Air Technologies provided a yearly tune up for this Tustin home. As part of our tuneup service, we inspected the ductwork and found excessive rodent damage to the ducts. We replaced the ductwork and strapped it to the ceiling to eliminate accessibility to the rodents. We also enlarged the ducts because the client was complaining of poor airflow. The client reported a noticeable increase in airflow and was very satisfied with the service we provided.
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Anaheim Furnace Coil Condencer Replacement 02
Ducts, Furnace coil and condenser Replacement Anaheim
Cool Air Technologies add new ducts and a 3 ton furnace coil and condenser in this Anaheim home.
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Yorba Linda 5 Ton AC Condencer Replacement
Condenser Replacement Yorba Linda
Cool Air Technologies replaced a 5 ton condenser to this home in Yorba Linda.
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Anaheim Furnace Coil AC Condencer Replacement 01
Condenser, Furnace coil and Ducts Replacement Anaheim Hills
Cool Air Technologies replaced the furnace coil and condenser for this home in Anaheim Hills. We also added new return ducts.
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Irvine Furnace AC Condencer Replacement 01
Old Equipment Replacement Irvine
Cool Air Technologies replaced 30 year old equipment in this Irvine home. Due to the age and condition of their unit, we recommended changing the equipment for better efficiency and reliability.
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Anaheim Hills Furnace Replacement 01
Furnace Replacement Anaheim Hills
Cool Air Technologies replaced the furnace with additional metal work on this home in Anaheim Hills.
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tempstar furnace
Tempstar New Furnace Installation
Installed new furnace.
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Tempstar 3 ton furnace coil and condenser installation
We put in 3 ton furnace coil and condenser this is a download application, we also installed a download coil for the existing heater.
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Cool Air Tech Customers Blog

Furnace Repair Orange County: The Complete Homeowner’s Guide to Heating Repair, Replacement & Costs

By |January 14, 2026|Tips & Tricks, Residential Heating Services|

Expert Furnace Repair, Replacement & Heating Solutions for Orange County HomesCool Air Tech provides residential furnace repair, heating service, and furnace replacement throughout Orange County, California. This comprehensive guide explains common furnace problems, repair vs replacement decisions, cost factors, maintenance best practices, and why[...]

Orange County, CA residential HVAC service area map showing Anaheim, Irvine, Mission Viejo, Newport Beach, Tustin, and surrounding cities served by Cool Air Technologies.

Cool Air Tech Heating & Air Service Areas

Cool Air Technologies provides professional residential air conditioning, heating repair, furnace installation, and HVAC maintenance services throughout Orange County, California. From Irvine and Tustin to Anaheim, Mission Viejo, Newport Beach, and Yorba Linda, our licensed technicians deliver dependable comfort solutions for homeowners across the region.

Cool Air Technologies is a residential air conditioning and heating contractor serving homeowners throughout Orange County, including Irvine, Tustin, Anaheim Hills, Yorba Linda, Newport Beach, Costa Mesa, Brea, Santa Ana, Mission Viejo, Laguna Niguel, Aliso Viejo, Lake Forest, Laguna Hills, Foothill Ranch, Newport Coast, Orange and surrounding communities. We specialize in AC repair, air conditioning maintenance, AC installation and HVAC replacement. Family-owned and serving Orange County since 1996.

Cool Air Tech Air Conditioning & Heating Services
CSLB #745012
Toll Free: (800) 453-0444
(714) 731-9292
Fax (714) 855-8565

SERVICE & ESTIMATES: Mon-Fri 8am-6:30pm
NEW EQUIPMENT ESTIMATES ONLY : Sat 8am-2pm
HVAC Services Orange County

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