
Get matched with top energy efficiency auditors in Fountain Valley, CA
There are 7 highly-rated local energy efficiency auditors.
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Verified Reviews for Energy Efficiency Auditing pros in Fountain Valley, CA
*The Angi rating for Energy Efficiency Auditing companies in Fountain Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
*The HomeAdvisor rating for Energy Efficiency Auditing companies in Fountain Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
Last update on October 31, 2025
Find Energy efficiency auditors in Fountain Valley

On Time Home Services
On Time Home Services
On Time Home Services is an HVAC company that has been putting our customers first since opening in 2005. We offer expert heating, cooling, and indoor air quality services to homes throughout Temecula and surrounding areas. To make your repair, replacement, installation, or maintenance service as convenient as possible we provide flexible scheduling, same-day appointments, and emergency after-hours and weekend repairs. With free, in-person estimates, friendly and honest customer service, and workmanship that is second to none, you can trust On Time Home Services to be your partner in comfort. Our licensed and insured technicians will go above and beyond to ensure our customers’ complete satisfaction.
"Fantastic service. Ryan and Carlos were very knowledgeable and courteous. Even had same day service. Would recommend to all family and friends! Called on when to expect them so I wasn’t waiting around."
Debbie S on April 2024
On Time Home Services is an HVAC company that has been putting our customers first since opening in 2005. We offer expert heating, cooling, and indoor air quality services to homes throughout Temecula and surrounding areas. To make your repair, replacement, installation, or maintenance service as convenient as possible we provide flexible scheduling, same-day appointments, and emergency after-hours and weekend repairs. With free, in-person estimates, friendly and honest customer service, and workmanship that is second to none, you can trust On Time Home Services to be your partner in comfort. Our licensed and insured technicians will go above and beyond to ensure our customers’ complete satisfaction.
"Fantastic service. Ryan and Carlos were very knowledgeable and courteous. Even had same day service. Would recommend to all family and friends! Called on when to expect them so I wasn’t waiting around."
Debbie S on April 2024
Cool Air For you
Cool Air For you
With over 22 years of experience, we are heating and air conditioning company working in the Greater San Diego Area. Our company strives to provide the best service for reasonable prices. We are a manufacture approved company and certified for ductless and VRF systems by Mitsubishi. Our technicians train on all brands of heating and air conditioning systems. Our goal is to provide all our customers with the friendliest service, based on knowledge and timeliness. Give us a call today for your free estimate!
"My AC's secondary drain was leaking due to a clogged primary line. Daryle from Cool Air quickly identified the issue and cleared the clog under the master bathroom sink — about a gallon of water came out instantly. The final charge was a bit more than quoted, but Daryle was honest, efficient, and didn’t try to upsell anything. After bad experiences with Service Champions — who I believe sabotaged my system — working with Cool Air was a relief. Vadim, the owner, was also great to talk to. I’ll be using them again."
Bijan G on July 2025
With over 22 years of experience, we are heating and air conditioning company working in the Greater San Diego Area. Our company strives to provide the best service for reasonable prices. We are a manufacture approved company and certified for ductless and VRF systems by Mitsubishi. Our technicians train on all brands of heating and air conditioning systems. Our goal is to provide all our customers with the friendliest service, based on knowledge and timeliness. Give us a call today for your free estimate!
"My AC's secondary drain was leaking due to a clogged primary line. Daryle from Cool Air quickly identified the issue and cleared the clog under the master bathroom sink — about a gallon of water came out instantly. The final charge was a bit more than quoted, but Daryle was honest, efficient, and didn’t try to upsell anything. After bad experiences with Service Champions — who I believe sabotaged my system — working with Cool Air was a relief. Vadim, the owner, was also great to talk to. I’ll be using them again."
Bijan G on July 2025

Cool Air Technologies Inc
Cool Air Technologies Inc
??SUPER SERVICE AWARD Winner??? Awarded 14 consecutive Years in a row! Thank you for visiting our profile. Cool Air Technologies was started over 22 years ago by Bill and Trish McIntosh. We are a small Mom and Pop company that services all of Orange County. We provide service on all makes and models. And we offer free no-pressure bids on new equipment. We accept AMEX MC, VISA and offer up to 2 Year Financing on new equipment as well. A little over 14 years ago, a few customers put us on Angie's List. And ever since we've been honored to have consecutively receive the Super Service Award (2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. It's an honor that is only bestowed upon 2% of Angie's List contractors. It is determined by Price, Customer Service, Quality, and Professionalism. We have also maintained a 5 Star Rating on Google as well as Yelp. Altogether there are over 2500 reviews on our company. We are proud of our awards. And we hope that your experience with us goes beyond your expectations. :) ‘Every job is backed by my personal guarantee that you will be completely satisfied." Bill McIntosh -owner of Cool Air Technologies. We appreciate your business and the opportunity to serve you! Bringing you comfort from our family to yours! Please contact us directly at (714) 731-9292 or (800) 453-0444
"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."
Broc Y on June 2024
??SUPER SERVICE AWARD Winner??? Awarded 14 consecutive Years in a row! Thank you for visiting our profile. Cool Air Technologies was started over 22 years ago by Bill and Trish McIntosh. We are a small Mom and Pop company that services all of Orange County. We provide service on all makes and models. And we offer free no-pressure bids on new equipment. We accept AMEX MC, VISA and offer up to 2 Year Financing on new equipment as well. A little over 14 years ago, a few customers put us on Angie's List. And ever since we've been honored to have consecutively receive the Super Service Award (2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. It's an honor that is only bestowed upon 2% of Angie's List contractors. It is determined by Price, Customer Service, Quality, and Professionalism. We have also maintained a 5 Star Rating on Google as well as Yelp. Altogether there are over 2500 reviews on our company. We are proud of our awards. And we hope that your experience with us goes beyond your expectations. :) ‘Every job is backed by my personal guarantee that you will be completely satisfied." Bill McIntosh -owner of Cool Air Technologies. We appreciate your business and the opportunity to serve you! Bringing you comfort from our family to yours! Please contact us directly at (714) 731-9292 or (800) 453-0444
"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."
Broc Y on June 2024
Total Home Environmental HVAC Co.
Total Home Environmental HVAC Co.
Choose Total Home Environmental for the Best Heating and Cooling Services in Torrance. When you have a malfunctioning air conditioner, you will more than likely do whatever it takes to get it working properly again. You don’t want to have to fix it by yourself, so your first move should be to find a company you can trust. We are that company at Total Home Environmental. We have been in the business for years, so we really know our way around air conditioners, heaters, and HVAC in general. You can call us at 310-554-6477 to find out more about us and to see why you should turn to us as your next air conditioning company in Torrance, CA.
Choose Total Home Environmental for the Best Heating and Cooling Services in Torrance. When you have a malfunctioning air conditioner, you will more than likely do whatever it takes to get it working properly again. You don’t want to have to fix it by yourself, so your first move should be to find a company you can trust. We are that company at Total Home Environmental. We have been in the business for years, so we really know our way around air conditioners, heaters, and HVAC in general. You can call us at 310-554-6477 to find out more about us and to see why you should turn to us as your next air conditioning company in Torrance, CA.

Trinity Heating and AC
Trinity Heating and AC
Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!
"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"
Sonja H on June 2025
Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!
"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"
Sonja H on June 2025

Left Coast Air
Left Coast Air
Our mission is to give every customer a top-rated experience from start to finish. Left Coast Air is a family-owned and operated business with 10+ years of experience and over 5,000 satisfied customers. We are homeowners, too, so we understand the importance of keeping your HVAC equipment and indoor quality in top shape. Since our beginning, we've been committed to helping our friends and neighbors keep their homes comfortable. You can expect quality work, superior customer service, competitive rates, free estimates, and 100% satisfaction guaranteed when you partner with us
"Amazing! He was on time, professional and explained everything he was doing every step of the way. That made me feel very confident in his work. I would definitely hire him again in the future."
Dana G on April 2023
Our mission is to give every customer a top-rated experience from start to finish. Left Coast Air is a family-owned and operated business with 10+ years of experience and over 5,000 satisfied customers. We are homeowners, too, so we understand the importance of keeping your HVAC equipment and indoor quality in top shape. Since our beginning, we've been committed to helping our friends and neighbors keep their homes comfortable. You can expect quality work, superior customer service, competitive rates, free estimates, and 100% satisfaction guaranteed when you partner with us
"Amazing! He was on time, professional and explained everything he was doing every step of the way. That made me feel very confident in his work. I would definitely hire him again in the future."
Dana G on April 2023

JO Solar Designs
JO Solar Designs
JO Solar Designs is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.
JO Solar Designs is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

HomeRx
HomeRx
At HomeRx, we specialize in providing top-tier energy and roofing services that combine quality, efficiency, and sustainability. Our team of CA Certified Home Improvement Specialist bring years of industry experience to every project, ensuring expert installation, maintenance, and repair of solar panels and roofing systems. We pride ourselves on using only the highest-quality materials and the latest technology to deliver durable and effective solutions tailored to meet the needs of each homeowner. We offer comprehensive energy assessments to optimize your property's energy efficiency and potential. From the initial consultation to the final installation, our focus is on providing exceptional service and support, helping you make informed decisions for your home.
At HomeRx, we specialize in providing top-tier energy and roofing services that combine quality, efficiency, and sustainability. Our team of CA Certified Home Improvement Specialist bring years of industry experience to every project, ensuring expert installation, maintenance, and repair of solar panels and roofing systems. We pride ourselves on using only the highest-quality materials and the latest technology to deliver durable and effective solutions tailored to meet the needs of each homeowner. We offer comprehensive energy assessments to optimize your property's energy efficiency and potential. From the initial consultation to the final installation, our focus is on providing exceptional service and support, helping you make informed decisions for your home.
Clean Energy Solutions
Clean Energy Solutions
Our mission is to provide property owners with clean reliable low cost solar power. We believe that every property owner should have reliability, predictability and control when it comes to their energy power bills. We provide property owners with huge monthly savings, and the peace of mind that comes from knowing they will no longer be affected by utility rate hikes.
Our mission is to provide property owners with clean reliable low cost solar power. We believe that every property owner should have reliability, predictability and control when it comes to their energy power bills. We provide property owners with huge monthly savings, and the peace of mind that comes from knowing they will no longer be affected by utility rate hikes.

Personal Power Project
Personal Power Project
https://personalpowerproject.com/ Personal Power Project - Solar Panel Installation Business. We install solar panels, and our specialty is helping people to reduce all of their energy bills to ZERO per year, when the average in CA is approaching $10,000 per year. For most people their electric bill is only one third of their total energy expense. Natural gas or propane gas for your home and gas for your cars amount to the other two thirds. This takes long range planning and that is what we do. If you need an emergency repair or service ASAP, we do that too although it's not our main focus so probably faster to get another company for emergency jobs. Our business model is to help you go 100% off grid while still being connected, if and when you need it. It's easy to be 100% off grid if you are not 100% electric. Being 100% off grid and 100% electric, on everything else is difficult and takes a lot of research, resources, planning, and some good advice and direction. Governments worldwide are mandating the all-electric movement so there is no avoiding it. It might take years for you to get there, which is not unusual and it's worth it, to eliminate $10,000 worth of energy bills per year which continue to climb higher each year. We dispatch our local solar contractors from our nationwide solar companies, of your choice, for all the help you need.
https://personalpowerproject.com/ Personal Power Project - Solar Panel Installation Business. We install solar panels, and our specialty is helping people to reduce all of their energy bills to ZERO per year, when the average in CA is approaching $10,000 per year. For most people their electric bill is only one third of their total energy expense. Natural gas or propane gas for your home and gas for your cars amount to the other two thirds. This takes long range planning and that is what we do. If you need an emergency repair or service ASAP, we do that too although it's not our main focus so probably faster to get another company for emergency jobs. Our business model is to help you go 100% off grid while still being connected, if and when you need it. It's easy to be 100% off grid if you are not 100% electric. Being 100% off grid and 100% electric, on everything else is difficult and takes a lot of research, resources, planning, and some good advice and direction. Governments worldwide are mandating the all-electric movement so there is no avoiding it. It might take years for you to get there, which is not unusual and it's worth it, to eliminate $10,000 worth of energy bills per year which continue to climb higher each year. We dispatch our local solar contractors from our nationwide solar companies, of your choice, for all the help you need.
The Fountain Valley, CA homeowners’ guide to energy efficiency auditing services
From average costs to expert advice, get all the answers you need to get your job done.
 • •- Discover the average home energy audit cost, what impacts pricing, and how to save money on your audit. Get transparent, expert-backed cost info for homeowners. 
 - Find out where homeowners spend the least and the most on house utilities like water, electricity, internet, cable, and natural gas. 
 - A home energy audit is a detailed write-up of how to lower your utility bills and increase your comfort level. Find out if they’re worth the cost. 
 • •- Get a detailed breakdown of thermal imaging home inspection costs, including average prices, cost factors, and tips to help homeowners budget. 
 - Home energy audits can identify ways to make your home more energy-efficient. Learn whether an energy audit is a good investment for your home. 
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"





