Heating & Air Conditioning Recent Projects
Looking for a AC Cooling or Heating service or a new heating and cooling system today? If you have any questions or are ready to book an appointment please contact our friendly staff anytime at 714 731-9292.
36-Year-Old Furnace Replacement in Yorba Linda, CA | Complete High-Efficiency HVAC System Upgrade
This Yorba Linda homeowner decided to replace a 36-year-old furnace, evaporator coil, and outdoor air conditioner after years of declining efficiency, unreliable operation, and rising utility costs. The original HVAC system had exceeded its expected service life and could no longer provide the comfort and performance today’s homeowners expect.
Cool Air Technologies removed the outdated equipment and installed a new high-efficiency Tempstar furnace, matched evaporator coil, and energy-efficient air conditioning system. During the installation, our technicians upgraded and inspected the gas connections, refrigerant lines, electrical components, venting, condensate drain, and airflow to ensure the new system met current manufacturer specifications and California building codes.
The homeowner now enjoys improved indoor comfort, quieter operation, enhanced reliability, and more than 60% savings on heating and cooling energy costs compared to the original system.
Since 1996, Cool Air Technologies has proudly served Yorba Linda and homeowners throughout Orange County with expert furnace replacement, AC replacement, complete HVAC installations, and preventative maintenance.
Slimline Air Conditioner Replacement in San Juan Capistrano, CA | High-Efficiency AC Installation
This San Juan Capistrano homeowner upgraded their aging slimline air conditioning system with a new high-efficiency outdoor condenser to improve cooling performance, reliability, and energy efficiency. The previous unit had reached the end of its useful life and was no longer providing dependable cooling during Southern California’s hottest months.
Our technicians professionally removed the old condenser and installed a new energy-efficient slimline air conditioning system while inspecting the refrigerant lines, electrical disconnect, condenser pad, and system controls to ensure optimal performance and long-term reliability. The homeowner now enjoys quieter operation, improved cooling capacity, lower energy consumption, and greater peace of mind.
Since 1996, Cool Air Technologies has proudly provided homeowners throughout San Juan Capistrano and Orange County with expert air conditioning replacement, AC repair, HVAC installation, and preventative maintenance.
Air Conditioner Replacement in Yorba Linda, CA | High-Efficiency AC Installation
This Yorba Linda homeowner replaced an old, inefficient air conditioning condenser with a new high-efficiency cooling system designed to improve comfort while significantly reducing energy consumption. The original condenser had become unreliable and inefficient, making replacement the best long-term investment.
Cool Air Technologies professionally installed the new outdoor air conditioning unit, verified refrigerant charge, inspected electrical components, and ensured the system was operating according to manufacturer specifications. The homeowner now benefits from quieter operation, improved cooling performance, lower monthly utility bills, and dependable comfort throughout the summer.
For nearly 30 years, Cool Air Technologies has been trusted by homeowners throughout Yorba Linda and Orange County for professional AC replacement, HVAC installation, and heating and cooling services.
32-Year-Old Furnace Replacement in Aliso Viejo, CA
This Aliso Viejo homeowner contacted Cool Air Technologies after experiencing reliability issues with their original 32-year-old furnace. Due to the age of the system, replacement parts were becoming increasingly difficult to obtain, and the furnace was operating far below the efficiency standards of today’s high-performance heating systems.
Our team removed the outdated furnace and professionally installed a new American Standard high-efficiency gas furnace, providing improved heating performance, greater reliability, quieter operation, and increased energy efficiency. We also inspected the existing ductwork, gas connections, electrical components, venting system, and condensate drain to ensure the new equipment was installed safely and according to manufacturer specifications.
The homeowner can now enjoy dependable comfort, lower utility costs, and peace of mind knowing their new heating system is designed to provide many years of reliable performance.
Cool Air Technologies has proudly served homeowners throughout Aliso Viejo and Orange County since 1996, providing expert furnace replacement, heating repair, HVAC installation, and preventative maintenance with honest recommendations and quality workmanship.
Air Conditioner Condenser Replacement in Anaheim Hills, CA | High-Efficiency AC System Upgrade
This Anaheim Hills homeowner contacted Cool Air Technologies to replace an aging air conditioning condenser that was no longer providing reliable cooling during Southern California’s summer heat. As outdoor condenser units age, they become less efficient, require more frequent repairs, and can significantly increase monthly energy costs.
Our experienced HVAC technicians removed the existing outdoor condenser and installed a new high-efficiency air conditioning unit designed to deliver improved cooling performance, quieter operation, and greater energy savings. During the installation, we inspected the refrigerant lines, electrical disconnect, condenser pad, and system components to ensure everything met current manufacturer specifications and industry standards for long-term reliability.
The result is a dependable cooling system that provides better comfort, lower operating costs, and peace of mind for years to come.
Cool Air Technologies has proudly served Anaheim Hills and homeowners throughout Orange County since 1996, specializing in professional air conditioning replacement, AC repair, HVAC installation, preventative maintenance, and energy-efficient comfort solutions.
42-Year-Old Horizontal Attic Furnace Replacement in Mission Viejo, CA | High-Efficiency Heating System Installation
This Mission Viejo homeowner chose Cool Air Technologies to replace a 42-year-old horizontal attic furnace that had reached the end of its service life. After more than four decades of dependable operation, the aging heating system had become inefficient, less reliable, and increasingly expensive to maintain, making replacement the most cost-effective long-term solution.
Our experienced HVAC technicians carefully removed the original attic furnace and installed a new high-efficiency horizontal heating system designed to provide improved comfort, greater energy efficiency, quieter operation, and dependable performance. Because attic installations require specialized expertise, our team ensured the new equipment was properly secured and connected while inspecting the ductwork, gas line, venting system, electrical components, and condensate drain to meet current manufacturer specifications and California building codes.
The new heating system delivers consistent airflow, lower energy consumption, and increased reliability, giving the homeowner peace of mind for many years to come.
Since 1996, Cool Air Technologies has proudly provided homeowners throughout Mission Viejo and Orange County with professional furnace replacement, heating repair, HVAC installation, and preventative maintenance backed by honest recommendations and quality workmanship.
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.
In addition to the attic installation, a new outdoor air conditioning condenser was installed to provide reliable cooling during peak summer temperatures. The system was fully tested and calibrated to ensure optimal performance, energy efficiency, and long-term reliability. The homeowner now benefits from stronger airflow, quieter operation, and a modern HVAC system built to handle the demands of Anaheim Hills weather year-round.
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.
The project included new electrical, gas connections, upgraded ductwork, and the installation of new cans and grills to improve airflow distribution throughout the home. With the system now properly sized and balanced, the homeowner benefits from significantly improved humidity control, more consistent indoor comfort, and increased energy efficiency. The new setup is expected to reduce energy usage by approximately 60% to 70%, delivering both performance and long-term savings.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Although we generally recommend installing matched HVAC equipment whenever possible to maximize efficiency, performance, and manufacturer compatibility, replacing the entire system is not always necessary. After evaluating the condition of the equipment, we determined the existing furnace still had plenty of service life remaining. We replaced only the aging evaporator coil and outdoor condenser, allowing the homeowner to restore reliable cooling performance while avoiding the additional cost of replacing equipment that did not need to be changed.
At Cool Air Technologies, we focus on providing honest recommendations based on the condition of your system—not selling equipment you don’t need. Whether you require a complete HVAC replacement or only specific components, our goal is to deliver the most cost-effective solution for your home while ensuring proper system operation, comfort, and reliability.
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.
The new installation features a high-efficiency Tempstar furnace integrated with the home’s existing duct system and airflow requirements. Following installation, the homeowner reported an estimated 60% reduction in energy costs, while also experiencing more consistent indoor temperatures and improved overall comfort. By upgrading to modern HVAC equipment, homeowners can often see substantial savings through reduced energy consumption, quieter operation, and improved system reliability.
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%.
3 Ton Changeout Irvine
Cool Air Technologies Changeout 3 Ton at Irvine
Coil Condenser Changeout Newport Beach
Cool Air Technologies Changeout Coil Condenser at Newport Beach
3 Ton Replacement in Tustin with new remote return air insulated return
In Tustin 3 Ton Replacement with new remote return air insulated return.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Condenser Replacement Yorba Linda
Cool Air Technologies replaced a 5 ton condenser to this home in Yorba Linda.
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.
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.
Furnace Replacement Anaheim Hills
Cool Air Technologies replaced the furnace with additional metal work on this home in Anaheim Hills.
Tempstar New Furnace Installation
Installed new furnace.
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.
FREE ESTIMATES
Service & Estimates:
Monday – Friday 8:00am-6:30pm
Estimates Only:
Saturday 8am-2:00pm
Call Us At: 714 731-9292
We also offer a free estimate for any new equipment or extra parts that you may need to fix your air conditioning unit.
Our contractors specialize in residential AC system replacement, meaning if we are unable to repair your cooling system – or it is not cost-effective for you to have your AC unit fixed – we can install a new one for you without wasting your time or it results in a large bill.
All work is performed by Factory Trained Technicians and comes with our Cool Air Comfort Warranty.
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.




























































































































