
Get matched with top energy efficiency auditors in Centennial, CO
There are 6 highly-rated local energy efficiency auditors.
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Verified Reviews for Energy Efficiency Auditing pros in Centennial, CO
*The Angi rating for Energy Efficiency Auditing companies in Centennial, CO 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 Centennial, CO 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 November 22, 2025
Find Energy efficiency auditors in Centennial

Ultimate Heating | Cooling | Plumbing | Electric
Ultimate Heating | Cooling | Plumbing | Electric
Local Family owned and operated, Ultimate Heating | Cooling | Plumbing | Electric specializes in repairs, installs and maintenance of HVAC, Plumbing and Electric systems in the Denver metro area. Our technicians are trained, licensed, insured and NATE certified. With over 40 years' experience in the industry, Ultimate can help you with any home project including service on any make and model of equipment.
"My furnace had gone out the other day so I called Ultimate. They came out the same day and I’ve been very very pleased with them. They came in the window. They told me they were gonna be here, the technician was very professional, very friendly, and I felt very, very comfortable with him in my home. They fix the issue And the pricing was very fair. I would definitely refer Ultimate to everyone I know."
Leslie C on January 2025
Local Family owned and operated, Ultimate Heating | Cooling | Plumbing | Electric specializes in repairs, installs and maintenance of HVAC, Plumbing and Electric systems in the Denver metro area. Our technicians are trained, licensed, insured and NATE certified. With over 40 years' experience in the industry, Ultimate can help you with any home project including service on any make and model of equipment.
"My furnace had gone out the other day so I called Ultimate. They came out the same day and I’ve been very very pleased with them. They came in the window. They told me they were gonna be here, the technician was very professional, very friendly, and I felt very, very comfortable with him in my home. They fix the issue And the pricing was very fair. I would definitely refer Ultimate to everyone I know."
Leslie C on January 2025

REenergizeCO, Inc.
REenergizeCO, Inc.
REenergizeCO is an approved contractor through Xcel Energy and Efficiency Works that specializes in home energy audits and insulation upgrades that improve the quality and efficiency of existing residential homes along the front range. Properly installed insulation in the attic, walls, crawl space, garage, basement, and air sealing are a few of the services offered. Reach out to schedule an energy audit or a free estimate with one of our BPI-certified technicians.
"The inspection went well. It's after the inspection that is terrible. Telling me that I need these things done to improve the then charging an astronomical amount of money. I was willing to do some of the work. Sent a list of what I would like done and got a new estimate, with virtually had the same as the first. Only change was to eliminate some insulation. I believe they try to put one over on people."
Todd S on December 2024
REenergizeCO is an approved contractor through Xcel Energy and Efficiency Works that specializes in home energy audits and insulation upgrades that improve the quality and efficiency of existing residential homes along the front range. Properly installed insulation in the attic, walls, crawl space, garage, basement, and air sealing are a few of the services offered. Reach out to schedule an energy audit or a free estimate with one of our BPI-certified technicians.
"The inspection went well. It's after the inspection that is terrible. Telling me that I need these things done to improve the then charging an astronomical amount of money. I was willing to do some of the work. Sent a list of what I would like done and got a new estimate, with virtually had the same as the first. Only change was to eliminate some insulation. I believe they try to put one over on people."
Todd S on December 2024

Time Plumbing, Heating & Electric INC
Time Plumbing, Heating & Electric INC
Founded in 1983, Time Plumbing, Heating & Electric Inc. has been serving the Denver, CO area with their plumbing, heating and electrical needs. If you have a drain that needs cleaning, a heater installed, or your panel box upgraded, then call the experts at Time Plumbing, Heating & Electric Inc. They are excited to hear from you so make the call now for your next appointment!
"So I've just sold my home in Lakewood and the Technicians at Time have come to repair a furnace motor and correct an code violation in my electrical panel that the city missed when I stalled 4 years ago. Their service has always been excellent. Madison returns messages first thing in the morning. The electrician Kevin Wendt explained the code violations clearly and corrected in 2 hours. I forgot the young man who repaired my furnace but he found the last motor in town for my model, potentially saving me having to spend thousands more. Home repair is never a pleasant experience but 3 times over the last decade, this business has given me peace of mind and fixed all issues quickly and professionally. Richard Gainer"
Richard G on April 2023
Founded in 1983, Time Plumbing, Heating & Electric Inc. has been serving the Denver, CO area with their plumbing, heating and electrical needs. If you have a drain that needs cleaning, a heater installed, or your panel box upgraded, then call the experts at Time Plumbing, Heating & Electric Inc. They are excited to hear from you so make the call now for your next appointment!
"So I've just sold my home in Lakewood and the Technicians at Time have come to repair a furnace motor and correct an code violation in my electrical panel that the city missed when I stalled 4 years ago. Their service has always been excellent. Madison returns messages first thing in the morning. The electrician Kevin Wendt explained the code violations clearly and corrected in 2 hours. I forgot the young man who repaired my furnace but he found the last motor in town for my model, potentially saving me having to spend thousands more. Home repair is never a pleasant experience but 3 times over the last decade, this business has given me peace of mind and fixed all issues quickly and professionally. Richard Gainer"
Richard G on April 2023

Liberty Home Inspections, LLC
Liberty Home Inspections, LLC
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"All around good quality work for a good price.."
Jay R on May 2016
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"All around good quality work for a good price.."
Jay R on May 2016
Standard Renewable Energy
Standard Renewable Energy
Standard Renewable Energy, provides energy efficiency and renewable energy solutions that help customers lower energy bills, reduce their environmental impact and increase their energy independence.
"They were friendly, honest (so many other contractors outright lie to you), accurate with their bid, prompt with keeping the installation appointment and thorough from the initial contact to the completion of the job. Service rep followed up with an inspection after the job was complete. Only 2 things I could say were slightly annoying were the screws left on the garage floor (but I was expecting some anyway from a previous contractor's work) and the fact that the sales rep did not deliver the rebate forms until it was almost too late to claim the rebate."
Marie J on June 2010
Standard Renewable Energy, provides energy efficiency and renewable energy solutions that help customers lower energy bills, reduce their environmental impact and increase their energy independence.
"They were friendly, honest (so many other contractors outright lie to you), accurate with their bid, prompt with keeping the installation appointment and thorough from the initial contact to the completion of the job. Service rep followed up with an inspection after the job was complete. Only 2 things I could say were slightly annoying were the screws left on the garage floor (but I was expecting some anyway from a previous contractor's work) and the fact that the sales rep did not deliver the rebate forms until it was almost too late to claim the rebate."
Marie J on June 2010

Home Performance Solutions LLC
Home Performance Solutions LLC
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. Customer Service is our highest priorit and we provide a Free estimate! High Energy bills and Comfort issues can be directly attributed to a lack of Insulation and a leaky uncomfortable home. Since we are Building Science Gurus, we can directly fix Air leakage Issues using Blower Door directed Air sealing (Weatherization) with non-toxic low VOC caulking, sealing light cans, outlets etc....contributing to overall leaky home. In addition, most homes built 15-50 years ago are all lacking the proper insulation needed to have low utility bills and comfort issues Cellulose insulation is the most energy efficient attic insulation on the market! Giving a higher R-value per inch than fiberglass and air tight. We test homes before and after will provide 30-40% more air tightness than fiberglass.
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. Customer Service is our highest priorit and we provide a Free estimate! High Energy bills and Comfort issues can be directly attributed to a lack of Insulation and a leaky uncomfortable home. Since we are Building Science Gurus, we can directly fix Air leakage Issues using Blower Door directed Air sealing (Weatherization) with non-toxic low VOC caulking, sealing light cans, outlets etc....contributing to overall leaky home. In addition, most homes built 15-50 years ago are all lacking the proper insulation needed to have low utility bills and comfort issues Cellulose insulation is the most energy efficient attic insulation on the market! Giving a higher R-value per inch than fiberglass and air tight. We test homes before and after will provide 30-40% more air tightness than fiberglass.
Bestway Insulation, LLC
Bestway Insulation, LLC
Home Pro of the Year in 2010 (Service Magic)Home Performance Contractor of the Year for the last 8 out of 10 years. We are a company that specializes in re-insulating existing homes by using blown-in insulation and getting huge reductions on our customers energy bills by Air Sealing and compressing fiberglass or rockwool in the walls and Dense packing it tight.Where most companies are happy getting 10%energy reductions on their clients homes, we want 50% or higher. Our family has owned and operated Bestway Insulation, LLC, in Colorado since 1976. Born & raised CO. Top Rebate producer for air sealing in 2009 - 2021. Home Performance with energy star Contractor of the year 21 out of 23 Years starting with NREL when they were doing it in 1996. I want huge results for my clients.
Home Pro of the Year in 2010 (Service Magic)Home Performance Contractor of the Year for the last 8 out of 10 years. We are a company that specializes in re-insulating existing homes by using blown-in insulation and getting huge reductions on our customers energy bills by Air Sealing and compressing fiberglass or rockwool in the walls and Dense packing it tight.Where most companies are happy getting 10%energy reductions on their clients homes, we want 50% or higher. Our family has owned and operated Bestway Insulation, LLC, in Colorado since 1976. Born & raised CO. Top Rebate producer for air sealing in 2009 - 2021. Home Performance with energy star Contractor of the year 21 out of 23 Years starting with NREL when they were doing it in 1996. I want huge results for my clients.

DMC Services
DMC Services
Multiple Angieslist Super Service Award Winner. Family owned and operated Business since 2001. Over 25yrs in the HVAC Industry. NATE and EPA Trained Employees. Excel Energy Contractor. Authorized RHEEM Pro Partner Contractor. BBB + Accredited. Full Service Repair/Replacement on all Air Conditioning and Furnaces, Evaporative Coolers, H20 Heaters. Service all major brands. Also install full line of Aprilaire indoor air quality products. Electronic air cleaners, humidifiers. Light commercial work, and Full preventative maintenance contracts. Also install whole house attic fans, roof vents, ceiling fans. Plumbing, Electrical, fireplace service.
"Overall, just a great experience. I had a new air conditioner installed. Les was incredibly knowledgeable and answered all of my questions as well as providing information to care for the air conditioner. He even fixed issues on my furnace from the previous installers shoddy work at no charge. I highly recommend using DMC Services for your HVAC needs."
John C on June 2023
Multiple Angieslist Super Service Award Winner. Family owned and operated Business since 2001. Over 25yrs in the HVAC Industry. NATE and EPA Trained Employees. Excel Energy Contractor. Authorized RHEEM Pro Partner Contractor. BBB + Accredited. Full Service Repair/Replacement on all Air Conditioning and Furnaces, Evaporative Coolers, H20 Heaters. Service all major brands. Also install full line of Aprilaire indoor air quality products. Electronic air cleaners, humidifiers. Light commercial work, and Full preventative maintenance contracts. Also install whole house attic fans, roof vents, ceiling fans. Plumbing, Electrical, fireplace service.
"Overall, just a great experience. I had a new air conditioner installed. Les was incredibly knowledgeable and answered all of my questions as well as providing information to care for the air conditioner. He even fixed issues on my furnace from the previous installers shoddy work at no charge. I highly recommend using DMC Services for your HVAC needs."
John C on June 2023
Colorado Home Services
Colorado Home Services
CHS is a local, veteran-owned licensed electrical contractor that provides full residential electrical services with deep expertise in whole house fans, attic fans and ventilation, sun tunnels and skylights. We have been providing the most environmentally friendly, cost-effective and energy-efficient home cooling and daylighting solutions in Colorado since 2003. We pride ourselves on delivering an un-matched customer service experience. From pricing to install, our team is dedicated to earning your trust and finding the best home cooling and daylighting solutions for your home, no matter what! Offering industry-leading brands and a wide range of products suited for any home, we are Colorado's premier home electrical, cooling and daylighting provider.
"When it comes to home services, CHC sets the bar exceedingly high. They installed a whole house fan that dramatically reduced the amount I need to run my AC. They were on time, professional, and completed the install faster than expected (~3.5 hours). They cleaned up after and took some time to train me on the many ways I could use the fan to save energy and improve comfort in my home, some of which I wouldn't have thought of. In an industry where low expectations seems to be the norm, to say that CHC exceeds expectations is an understatement."
Tyler N on September 2022
CHS is a local, veteran-owned licensed electrical contractor that provides full residential electrical services with deep expertise in whole house fans, attic fans and ventilation, sun tunnels and skylights. We have been providing the most environmentally friendly, cost-effective and energy-efficient home cooling and daylighting solutions in Colorado since 2003. We pride ourselves on delivering an un-matched customer service experience. From pricing to install, our team is dedicated to earning your trust and finding the best home cooling and daylighting solutions for your home, no matter what! Offering industry-leading brands and a wide range of products suited for any home, we are Colorado's premier home electrical, cooling and daylighting provider.
"When it comes to home services, CHC sets the bar exceedingly high. They installed a whole house fan that dramatically reduced the amount I need to run my AC. They were on time, professional, and completed the install faster than expected (~3.5 hours). They cleaned up after and took some time to train me on the many ways I could use the fan to save energy and improve comfort in my home, some of which I wouldn't have thought of. In an industry where low expectations seems to be the norm, to say that CHC exceeds expectations is an understatement."
Tyler N on September 2022
Paradise Heating & Cooling, Inc.
Paradise Heating & Cooling, Inc.
Currently we are booked until August 15, 2016. Cost is determined by the job. No travel charges. Service fee of $90.00 includes service call and diagnosis of system. Working rate $80/hr billed in 15 minute increments, parts are separate. We do not service Parker, Highlands Ranch, Lone Tree, and Broomfield or areas further out. We are also not servicing anything North of I-70 at this time. Thank you! License #14903 may contact through e-mail.
"On 3/13/19 we woke-up without any heat so I put in a call to Paradise Heating right on the dot of 8:00 and who should answer the phone but John (the owner). He understood my anxiety because there was a big snow storm (and cold temps) about hit all of CO. John scheduled us in right away for a call that morning. The problem turned out to be a quite a tricky one that he was able to figure out ... but ... he was going to have to make a trip downtown to pick up some parts RIGHT AS THE SNOW STORM WAS GATHERING STRENGTH. John gave me a call once he got to the supplier because it took him longer than expected (due to some traffic lights failing) and gave me an update on when he expected to be back at my place. By the time John got back there was already inches of snow onthe roads and it was getting slick, but, John didn't hesitate about continuing with the repair and it was another hour before he had fixed our furnace and he could head home. This was customer service that went beyond what any customer could expect. A big thanks to John!"
Robin W on March 2019
Currently we are booked until August 15, 2016. Cost is determined by the job. No travel charges. Service fee of $90.00 includes service call and diagnosis of system. Working rate $80/hr billed in 15 minute increments, parts are separate. We do not service Parker, Highlands Ranch, Lone Tree, and Broomfield or areas further out. We are also not servicing anything North of I-70 at this time. Thank you! License #14903 may contact through e-mail.
"On 3/13/19 we woke-up without any heat so I put in a call to Paradise Heating right on the dot of 8:00 and who should answer the phone but John (the owner). He understood my anxiety because there was a big snow storm (and cold temps) about hit all of CO. John scheduled us in right away for a call that morning. The problem turned out to be a quite a tricky one that he was able to figure out ... but ... he was going to have to make a trip downtown to pick up some parts RIGHT AS THE SNOW STORM WAS GATHERING STRENGTH. John gave me a call once he got to the supplier because it took him longer than expected (due to some traffic lights failing) and gave me an update on when he expected to be back at my place. By the time John got back there was already inches of snow onthe roads and it was getting slick, but, John didn't hesitate about continuing with the repair and it was another hour before he had fixed our furnace and he could head home. This was customer service that went beyond what any customer could expect. A big thanks to John!"
Robin W on March 2019
The Centennial, CO homeowners’ guide to energy efficiency auditing services
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•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.

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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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