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Verified Reviews for Energy Efficiency Auditing pros in Fair Oaks Ranch, TX
*The Angi rating for Energy Efficiency Auditing companies in Fair Oaks Ranch, TX 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 Fair Oaks Ranch, TX 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 16, 2025
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O 2 KOOL REFRIGERATION & A/C
O 2 KOOL REFRIGERATION & A/C
O2Kool has been Austin’s premier HVAC company for the past 15 years and we’ve shown no signs of cooling down. Our ability to confidently assess, install, repair,and upkeep our units, sets us apart from all other HVAC companies. Our experienced technicians are on call 24/7 in order to provide optimum customer service to each and every one of our clients. We aim to fulfill our clients’ HVAC needs by promising reliable, honest, quality service but we don’t stop there. Our technicians will educate our customers on the process of maintaining their units in order to maximize their a/c and heating experience.
"I can not say enough positive about Chris and Chuck and O 2 KOOL!! Chuck came out in early January to look at my old Trane gas furnace .. he got it going with no trouble. Now today ... during our ice/snow armageddon it went out again. I called and Chris FaceTimed with me .. looked at what was up and talked me through how to relight the system myself. Good news .. I now have heat! I strongly recommend them to anyone who needs help with their heating and cooling system! They not only helped, but assured me .. a 60 yr old woman .. everything would be OK and safe. That is a VERY rare quality!"
Cindy M on February 2021
O2Kool has been Austin’s premier HVAC company for the past 15 years and we’ve shown no signs of cooling down. Our ability to confidently assess, install, repair,and upkeep our units, sets us apart from all other HVAC companies. Our experienced technicians are on call 24/7 in order to provide optimum customer service to each and every one of our clients. We aim to fulfill our clients’ HVAC needs by promising reliable, honest, quality service but we don’t stop there. Our technicians will educate our customers on the process of maintaining their units in order to maximize their a/c and heating experience.
"I can not say enough positive about Chris and Chuck and O 2 KOOL!! Chuck came out in early January to look at my old Trane gas furnace .. he got it going with no trouble. Now today ... during our ice/snow armageddon it went out again. I called and Chris FaceTimed with me .. looked at what was up and talked me through how to relight the system myself. Good news .. I now have heat! I strongly recommend them to anyone who needs help with their heating and cooling system! They not only helped, but assured me .. a 60 yr old woman .. everything would be OK and safe. That is a VERY rare quality!"
Cindy M on February 2021

Jon Wayne Service Company
Jon Wayne Service Company
We are proud to be San Antonio's largest residential heating and air conditioning contractor. From the moment you call until the job is done, our goal is your 100% satisfaction. If the job is not done right, we will make it right.
"I had a problem with my AC and called them for a service appointment. John Wayne has a good reputation, so I chose to call them and they were quick to respond. The tech who came to my residence was very friendly and professional, however, he seemed more like a sales rep than a technician. After a few hours and $950 worth of work, he indicated that the HVAC system was not repairable. He created a quote for various options to install a new system. I had previously researched average costs for replacement of a 5 ton / 16 SEER system, which averaged approximately $9-10K for a reputable company with reliable brands. The first option the tech provided was for $40,600, which was a little surprising. He offered several options, with the cheapest being $10,700 for the lowest quality equipment and least warranty. He indicated that the primary difference between John Wayne and other companies is the quality and training of the employees. He also used typical sales techniques, such as “why would you feel different tomorrow” when I indicated that I’d prefer to think about the decisive overnight. During research online, I saw that John Wayne uses Amana products, which are a little more expensive but highly rated and manufactured here in Texas. I purchased a system one echelon higher than the lowest priced system for $13,700, still well-above what I was prepare to pay; however, the tech indicated that they would waive the outstanding $950 bill if I purchased the system and they would be able to install the next day. The next morning, four techs arrived, all pleasant and professional; however, only one appeared to be a trained technician, while the other three appeared to be labor for assisting and conducting menial tasks, such as cleaning the ducts. Within the first hour, two of them accidentally shattered several sconces on the chandelier in my dining room when a piece of equipment fell while cleaning a duct. They are still here in my house installing, but I truly feel like paid too much. Again, I don’t doubt that they are a solid company, but feel like was pressed by a salesman rather than a technician when I needed an urgent problem addressed. I believe I could’ve purchased just as good of a system, maybe better, from a reliable company for a few thousand dollars less."
Shane F on September 2021
We are proud to be San Antonio's largest residential heating and air conditioning contractor. From the moment you call until the job is done, our goal is your 100% satisfaction. If the job is not done right, we will make it right.
"I had a problem with my AC and called them for a service appointment. John Wayne has a good reputation, so I chose to call them and they were quick to respond. The tech who came to my residence was very friendly and professional, however, he seemed more like a sales rep than a technician. After a few hours and $950 worth of work, he indicated that the HVAC system was not repairable. He created a quote for various options to install a new system. I had previously researched average costs for replacement of a 5 ton / 16 SEER system, which averaged approximately $9-10K for a reputable company with reliable brands. The first option the tech provided was for $40,600, which was a little surprising. He offered several options, with the cheapest being $10,700 for the lowest quality equipment and least warranty. He indicated that the primary difference between John Wayne and other companies is the quality and training of the employees. He also used typical sales techniques, such as “why would you feel different tomorrow” when I indicated that I’d prefer to think about the decisive overnight. During research online, I saw that John Wayne uses Amana products, which are a little more expensive but highly rated and manufactured here in Texas. I purchased a system one echelon higher than the lowest priced system for $13,700, still well-above what I was prepare to pay; however, the tech indicated that they would waive the outstanding $950 bill if I purchased the system and they would be able to install the next day. The next morning, four techs arrived, all pleasant and professional; however, only one appeared to be a trained technician, while the other three appeared to be labor for assisting and conducting menial tasks, such as cleaning the ducts. Within the first hour, two of them accidentally shattered several sconces on the chandelier in my dining room when a piece of equipment fell while cleaning a duct. They are still here in my house installing, but I truly feel like paid too much. Again, I don’t doubt that they are a solid company, but feel like was pressed by a salesman rather than a technician when I needed an urgent problem addressed. I believe I could’ve purchased just as good of a system, maybe better, from a reliable company for a few thousand dollars less."
Shane F on September 2021
RSS Solar
RSS Solar
We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.
We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.
easy simple solar
easy simple solar
WHAT'S IN IT FOR ME? Cut your bill between 30%-60% at no additional cost by locking in your utility rates from several years ago. Homeowners MUST QUALIFY for this limited program. SUMMARY Simple Solar Advisors. The lowest price for the best quality home services. Reason? We provide volume nationwide to our vetted local installers. We're virtual. Your steps are easy. HOME SERVICES Solar, Roof, HVAC, Windows, Remodeling, etc.
WHAT'S IN IT FOR ME? Cut your bill between 30%-60% at no additional cost by locking in your utility rates from several years ago. Homeowners MUST QUALIFY for this limited program. SUMMARY Simple Solar Advisors. The lowest price for the best quality home services. Reason? We provide volume nationwide to our vetted local installers. We're virtual. Your steps are easy. HOME SERVICES Solar, Roof, HVAC, Windows, Remodeling, etc.
Lonestar Air Services
Lonestar Air Services
Small HVAC business veteran owned & operated. With many years of extensive experience servicing residential and light commercial systems to include installations, repairs, and diagnostics; Lonestar Air can handle all of your HVAC needs.
"Steven did a phenomenal job, he identified the issue, picked up the part and installed within a couple hours. Totally recommend lone star."
Izzy K on January 2023
Small HVAC business veteran owned & operated. With many years of extensive experience servicing residential and light commercial systems to include installations, repairs, and diagnostics; Lonestar Air can handle all of your HVAC needs.
"Steven did a phenomenal job, he identified the issue, picked up the part and installed within a couple hours. Totally recommend lone star."
Izzy K on January 2023
Lone Star MEP and Inspection Solutions
Lone Star MEP and Inspection Solutions
MEP Design for Residential, Residential Energy Inspection, HERS rating, Green Building Certifications, DOE Zero Energy Ready Homes Verifier Partner, Passive House Consulting, Building Envelope Testing, Home Energy Audits, Builder Tax Credit Support, Renewable Energy Consulting, Water and Energy Management Solutions, Indoor Air Quality Solutions
MEP Design for Residential, Residential Energy Inspection, HERS rating, Green Building Certifications, DOE Zero Energy Ready Homes Verifier Partner, Passive House Consulting, Building Envelope Testing, Home Energy Audits, Builder Tax Credit Support, Renewable Energy Consulting, Water and Energy Management Solutions, Indoor Air Quality Solutions
Anthony's Ac & Heating
Anthony's Ac & Heating
I provide a safe and reasonable service to all my customers. The business has over 45 years of experience with plenty of credentials and certifications. We are here to give the best service with reasonable prices. Guaranteed satisfaction.
I provide a safe and reasonable service to all my customers. The business has over 45 years of experience with plenty of credentials and certifications. We are here to give the best service with reasonable prices. Guaranteed satisfaction.
Solar Guys, LLC
Solar Guys, LLC
We, Solar Guys, are a local, home-grown solar energy company serving the Coastal Bend and beyond. Formally established in 2020, we come with nearly two decades of experience in solar energy, solar installation, industry, and exceptional customer service. As a local company we have deep roots in our community. Our company goal is to help our neighbors and friends, residential or commercial property owners to GO GREEN. We want to educate our community about renewable energy and how simple it is to be part of the solution and not the problem.
We, Solar Guys, are a local, home-grown solar energy company serving the Coastal Bend and beyond. Formally established in 2020, we come with nearly two decades of experience in solar energy, solar installation, industry, and exceptional customer service. As a local company we have deep roots in our community. Our company goal is to help our neighbors and friends, residential or commercial property owners to GO GREEN. We want to educate our community about renewable energy and how simple it is to be part of the solution and not the problem.
Sunshine Renewable Solutions
Sunshine Renewable Solutions
Sunshine Renewable Solutions is a turnkey solar energy installer, meaning that we are here for you even after we install your solar panels. Our solar panel installation crew are certified technicians who are specially trained to take care of any maintenance your solar panels may need.
"I’ve never worked with a contractor that made me feel so comfortable. I felt valued and communicated with all along the way. In the end, I got a system that I’m very happy with at a competitive price and I couldn’t be happier with my decision to go with Sunshine. Highly recommended!"
Caitlin C on June 2023
Sunshine Renewable Solutions is a turnkey solar energy installer, meaning that we are here for you even after we install your solar panels. Our solar panel installation crew are certified technicians who are specially trained to take care of any maintenance your solar panels may need.
"I’ve never worked with a contractor that made me feel so comfortable. I felt valued and communicated with all along the way. In the end, I got a system that I’m very happy with at a competitive price and I couldn’t be happier with my decision to go with Sunshine. Highly recommended!"
Caitlin C on June 2023
Elmer's Home Service
Elmer's Home Service
If cleanliness is next to godliness then we're saints. At Elmer's, we take the time needed to make sure your home feels as comfortable as you need it to be. AC and Plumbing is our trade; making homes healthy is what we do. Call us for the best guarantees and warranties in San Antonio.
"Elmer's diagnosis crew came out and gave me step by step on how the best affordable way this job would would get done. I was shown my plumbing issues with their camera inside the sewer line. From the job being done to following up with few days later checking for leaks and back filling the dug up areas. Job well done !"
James V on June 2024
If cleanliness is next to godliness then we're saints. At Elmer's, we take the time needed to make sure your home feels as comfortable as you need it to be. AC and Plumbing is our trade; making homes healthy is what we do. Call us for the best guarantees and warranties in San Antonio.
"Elmer's diagnosis crew came out and gave me step by step on how the best affordable way this job would would get done. I was shown my plumbing issues with their camera inside the sewer line. From the job being done to following up with few days later checking for leaks and back filling the dug up areas. Job well done !"
James V on June 2024
The Fair Oaks Ranch, TX 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 with 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.
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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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