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  • Verified reviews icon25
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Winston

Avatar for Coolray Heating & Air Conditioning

Coolray Heating & Air Conditioning

4.82(
1,232
)
Approved Pro

Coolray Heating & Air Conditioning

4.82(
1,232
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
1966 years of experience

Coolray has served the Atlanta metro area since 1966 and offers professional heating, air conditioning, plumbing and electrical. We base our business principles on people helping people with honest, dependable service backed by our peace of mind warranties and guarantees ensuring your 100% satisfaction. 350 employees. No subs. Charges a flat rate. Senior Discount on Service Repairs only, cannot be used with other offers.

"Did a great job on annual HVAC maintenance. Waylon Coley is an excellent HVAC tech."

Douglas I on November 2025

Coolray has served the Atlanta metro area since 1966 and offers professional heating, air conditioning, plumbing and electrical. We base our business principles on people helping people with honest, dependable service backed by our peace of mind warranties and guarantees ensuring your 100% satisfaction. 350 employees. No subs. Charges a flat rate. Senior Discount on Service Repairs only, cannot be used with other offers.

"Did a great job on annual HVAC maintenance. Waylon Coley is an excellent HVAC tech."

Douglas I on November 2025


Avatar for Energy Consulting Services, LLC

Energy Consulting Services, LLC

4.98(
41
)
Approved Pro

Energy Consulting Services, LLC

4.98(
41
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2010 years of experience

Energy Consulting Services (ECS) is located in Cabbagetown just east of downtown Atlanta. We are experts in resolving comfort issues and reducing energy usage in homes and apartment complexes. We believe that doing the right thing for the environment is also the right thing for your bank account. We specialize in conducting energy audits to determine where a home or building is losing energy. We then make recommendations based on our findings. We work closely with our sister company, Energy Construction Services, so they implement the high-priority improvements identified in the audit report to make the structure more energy efficient and comfortable. ECS is a top-rated Georgia Power contractor, and part of our service is to ensure that our clients get maximum rebates available to maximize return on investment. Our recommendations are very specific to our client's specific needs. ECS files all rebate paperwork to ensure our clients receive their rebate checks in a timely fashion.

"ECS performed an energy audit on my home and identified multiple ways to improve the energy efficiency. Shane and Cole did a great job explaining the options and helping me choose the ones that would make the biggest impact. The result was a 36% reduction in air leakage. They also helped get rebates from Georgia Power. I highly recommend their services!"

Greg S on November 2025

Energy Consulting Services (ECS) is located in Cabbagetown just east of downtown Atlanta. We are experts in resolving comfort issues and reducing energy usage in homes and apartment complexes. We believe that doing the right thing for the environment is also the right thing for your bank account. We specialize in conducting energy audits to determine where a home or building is losing energy. We then make recommendations based on our findings. We work closely with our sister company, Energy Construction Services, so they implement the high-priority improvements identified in the audit report to make the structure more energy efficient and comfortable. ECS is a top-rated Georgia Power contractor, and part of our service is to ensure that our clients get maximum rebates available to maximize return on investment. Our recommendations are very specific to our client's specific needs. ECS files all rebate paperwork to ensure our clients receive their rebate checks in a timely fashion.

"ECS performed an energy audit on my home and identified multiple ways to improve the energy efficiency. Shane and Cole did a great job explaining the options and helping me choose the ones that would make the biggest impact. The result was a 36% reduction in air leakage. They also helped get rebates from Georgia Power. I highly recommend their services!"

Greg S on November 2025


Avatar for R Wiley Heating & Air

R Wiley Heating & Air

4.68(
1,045
)
Approved Pro

R Wiley Heating & Air

4.68(
1,045
)
Approved Pro
Customers say: Super punctual
1986 years of experience
Free onsite estimate

Super Service Award Winner for 2024-2013 | HVAC Contractor | Owner Operated by Robby Wiley | We are a local Heating and Air Conditioning company in the metro Atlanta and surrounding areas. We offer FREE ESTIMATES on installations only and financing options including 18 months same as cash on all equipment and 60 months same as cash for certain equipment. We provide services to residential and small commercial customers. I have been in the industry for 30 years and enjoy helping my customers maintain their equipment and overcome issues with their equipment. I will work with you and offer recommendations based on your needs. I will make myself available to answer questions you may have without requiring a service call, again I enjoy what I do.

"Good."

Brent L on April 2025

Super Service Award Winner for 2024-2013 | HVAC Contractor | Owner Operated by Robby Wiley | We are a local Heating and Air Conditioning company in the metro Atlanta and surrounding areas. We offer FREE ESTIMATES on installations only and financing options including 18 months same as cash on all equipment and 60 months same as cash for certain equipment. We provide services to residential and small commercial customers. I have been in the industry for 30 years and enjoy helping my customers maintain their equipment and overcome issues with their equipment. I will work with you and offer recommendations based on your needs. I will make myself available to answer questions you may have without requiring a service call, again I enjoy what I do.

"Good."

Brent L on April 2025


Avatar for Casteel Heating, Cooling, Plumbing & Electrical

Casteel Heating, Cooling, Plumbing & Electrical

4.68(
917
)
Approved Pro

Casteel Heating, Cooling, Plumbing & Electrical

4.68(
917
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1987 years of experience

**2018, 2017, 2016,2015, 2014, & 2013 SUPER SERVICE AWARD WINNER!** During the past 30 years, Casteel Heating and Cooling has been one of the most respected names in metro Atlanta for heating and air conditioning. Since then we have grown and added a Plumbing and Electrical division with some of the industries best technicians! We are now offering experts in hydro jetting to clear even the worst clogged drains in your commercial or residential property. With over 30,000 5 star and A+reviews, the #1 Plumber in Atlanta as voted by Atlanta Home Improvement Magazine, and having been awarded Top 25 Small Business of the year -7 times in a row, Casteel is your only call to have your home repairs completed in a timely and budget friendly manner by the best! When we say "We'll take Amazing Care of You," we guarantee it! Your Amazing Care continues to our craftsmanship, technician know how, and even to the job clean up. Your home will be left as if we were never there. Knowing that you are a satisfied customer is our top priority and each survey is personally seen and responded to. As one of the top Heating, Cooling, Plumbing and Electrical companies in the metro Atlanta area, Casteel is your one and only call for your home service needs.

"I used Casteel Plumbing and HVAC services. Both technicians were friendly and prompt with their services."

Brittni R on August 2025

**2018, 2017, 2016,2015, 2014, & 2013 SUPER SERVICE AWARD WINNER!** During the past 30 years, Casteel Heating and Cooling has been one of the most respected names in metro Atlanta for heating and air conditioning. Since then we have grown and added a Plumbing and Electrical division with some of the industries best technicians! We are now offering experts in hydro jetting to clear even the worst clogged drains in your commercial or residential property. With over 30,000 5 star and A+reviews, the #1 Plumber in Atlanta as voted by Atlanta Home Improvement Magazine, and having been awarded Top 25 Small Business of the year -7 times in a row, Casteel is your only call to have your home repairs completed in a timely and budget friendly manner by the best! When we say "We'll take Amazing Care of You," we guarantee it! Your Amazing Care continues to our craftsmanship, technician know how, and even to the job clean up. Your home will be left as if we were never there. Knowing that you are a satisfied customer is our top priority and each survey is personally seen and responded to. As one of the top Heating, Cooling, Plumbing and Electrical companies in the metro Atlanta area, Casteel is your one and only call for your home service needs.

"I used Casteel Plumbing and HVAC services. Both technicians were friendly and prompt with their services."

Brittni R on August 2025


Brown Property Inspections Corp

5.00(
3
)
Approved Pro

Brown Property Inspections Corp

5.00(
3
)
Approved Pro
Super Service Award
2025 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Absolutely superb! This company is reliable, professional and prompt! I appreciate the service! I highly recommend their expertise!"

Brandon S on September 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Absolutely superb! This company is reliable, professional and prompt! I appreciate the service! I highly recommend their expertise!"

Brandon S on September 2025


The Solar Guru

5.00(
1
)
Approved Pro

The Solar Guru

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2020 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Kyle Dunn is the best"

John A on June 2021

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Kyle Dunn is the best"

John A on June 2021


Avatar for Aladdin Insulation & Home Improvement

Aladdin Insulation & Home Improvement

4.93(
403
)

Aladdin Insulation & Home Improvement

4.93(
403
)
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Over 10 years Super Service Award winners! At Aladdin, we appreciate the opportunity to share information about making your home more energy efficient and affordable to heat and cool. We use Guaranteed Products with Guaranteed Savings. We offer full service capabilities including exterior design, product selection and special financing for homeowners. We provide free, no hassle estimates.

"The workers were an hour late but called to let me know. When they got here, they got right to work and completed the work within an hour and a half. They were professional, courteous, and left my house looking like they had never been here. Eric K came out to estimate the job and fully explained the work they would perform. All in all, I would definitely recommend Aladdin for blown in insulation."

Gregg R on July 2022

Over 10 years Super Service Award winners! At Aladdin, we appreciate the opportunity to share information about making your home more energy efficient and affordable to heat and cool. We use Guaranteed Products with Guaranteed Savings. We offer full service capabilities including exterior design, product selection and special financing for homeowners. We provide free, no hassle estimates.

"The workers were an hour late but called to let me know. When they got here, they got right to work and completed the work within an hour and a half. They were professional, courteous, and left my house looking like they had never been here. Eric K came out to estimate the job and fully explained the work they would perform. All in all, I would definitely recommend Aladdin for blown in insulation."

Gregg R on July 2022


Avatar for E Smith Heating & Air Conditioning Inc

E Smith Heating & Air Conditioning Inc

4.88(
133
)

E Smith Heating & Air Conditioning Inc

4.88(
133
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

E. Smith celebrated 50 years of serving north metropolitan Atlanta in 2012 and we continue to work to keep our customers satisfied. We have over 50 employees including 12 technicians. Our only subcontracted area is in our commercial installation department. We accept all major credit cards and have equipment financing plans available through Wells Fargo. Each spring and fall we try to offer timely maintenance specials but the most affordable maintenance is with our annual agreement plans. Details of the maintenance plans and all other services are on our website www.esmithair.com.

"Anthony C. of E. Smith did a Great job. He helped get the thermostat working again. What a Blessing! very pleased. And also did our seasonal maintenance. We have had E. Smith for 14 years."

Maria D on October 2020

E. Smith celebrated 50 years of serving north metropolitan Atlanta in 2012 and we continue to work to keep our customers satisfied. We have over 50 employees including 12 technicians. Our only subcontracted area is in our commercial installation department. We accept all major credit cards and have equipment financing plans available through Wells Fargo. Each spring and fall we try to offer timely maintenance specials but the most affordable maintenance is with our annual agreement plans. Details of the maintenance plans and all other services are on our website www.esmithair.com.

"Anthony C. of E. Smith did a Great job. He helped get the thermostat working again. What a Blessing! very pleased. And also did our seasonal maintenance. We have had E. Smith for 14 years."

Maria D on October 2020


Avatar for Reliable Heating & Air Plumbing & Electrical

Reliable Heating & Air Plumbing & Electrical

4.60(
1,204
)

Reliable Heating & Air Plumbing & Electrical

4.60(
1,204
)
Customers say: Super punctual
1978 years of experience

Since 1978, Reliable has offered home services with exceptional reliability and customer service. We offer more financing options than any other company, even Comfort as a Service, a hassle free way to get energy-efficient heating and cooling systems, water heaters, water purification even generators for a low monthly payment and all repairs, maintenance even filters are NO additional CHARGE EVER. Reliable takes care of everything. That is an UNBEATABLE LIFETIME WARRANTY.

"I had a brand new heat pump system installed in April 2023. They sent subcontractors to install it who were very unprofessional and they left bare wires hanging out of the machine and it did not look like it was installed correctly. It stopped working completely 4 times in 5 months, the last time was on October 10, service tech said, “I really don’t agree with the way they installed it “ he said the wires were barely connected so it kept losing power. He got it working again and left. Two weeks ago it got cold and we turned the system to heat for the very first time. It blew cold air. We made ANOTHER service call. The technician said that a switch had “gone bad” because, “they wear out” we explained that we have never used the heat even once, so how could the switch be worn out. Then they advised they had to order a part. Over a week later the part came in and they returned and that still didn’t fix. Now they say the compressor has, “gone bad” and when we reiterated that we have never even used it so how is it worn out they answered, “they just go bad sometimes” we still don’t have heat, they say they have to order more parts. We asked them to look over the whole system because we don’t think it is installed right and I am genuinely concerned that it is a fire hazard and they looked at it, put electrical tape on some hanging wires and left. We have had to take SIX days off work so far and buy space heaters and we are no closer to having a working system. This unit is less then SIX MONTHS OLD. At this point I have no choice but to pursue legal action. This whole experience has been terrible and has cost me hundreds in missed time at work and I’m still paying for a system that does not work."

Nicole G on November 2023

Since 1978, Reliable has offered home services with exceptional reliability and customer service. We offer more financing options than any other company, even Comfort as a Service, a hassle free way to get energy-efficient heating and cooling systems, water heaters, water purification even generators for a low monthly payment and all repairs, maintenance even filters are NO additional CHARGE EVER. Reliable takes care of everything. That is an UNBEATABLE LIFETIME WARRANTY.

"I had a brand new heat pump system installed in April 2023. They sent subcontractors to install it who were very unprofessional and they left bare wires hanging out of the machine and it did not look like it was installed correctly. It stopped working completely 4 times in 5 months, the last time was on October 10, service tech said, “I really don’t agree with the way they installed it “ he said the wires were barely connected so it kept losing power. He got it working again and left. Two weeks ago it got cold and we turned the system to heat for the very first time. It blew cold air. We made ANOTHER service call. The technician said that a switch had “gone bad” because, “they wear out” we explained that we have never used the heat even once, so how could the switch be worn out. Then they advised they had to order a part. Over a week later the part came in and they returned and that still didn’t fix. Now they say the compressor has, “gone bad” and when we reiterated that we have never even used it so how is it worn out they answered, “they just go bad sometimes” we still don’t have heat, they say they have to order more parts. We asked them to look over the whole system because we don’t think it is installed right and I am genuinely concerned that it is a fire hazard and they looked at it, put electrical tape on some hanging wires and left. We have had to take SIX days off work so far and buy space heaters and we are no closer to having a working system. This unit is less then SIX MONTHS OLD. At this point I have no choice but to pursue legal action. This whole experience has been terrible and has cost me hundreds in missed time at work and I’m still paying for a system that does not work."

Nicole G on November 2023


Avatar for PicoVolt

PicoVolt

4.92(
25
)

PicoVolt

4.92(
25
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

PicoVolt will provide job completion in the quickest possible way. We will do this by, responding promptly to the needs of our consumer, and providing an open line of communication. We believe in quality over quantity. PicoVolt will be a name to trust and one that will last. We hire the most qualified personnel to insure top quality to our customers. We want to earn your trust, and your business for the long haul.

"Picovolt did a great job. Very professional."

David M on February 2018

PicoVolt will provide job completion in the quickest possible way. We will do this by, responding promptly to the needs of our consumer, and providing an open line of communication. We believe in quality over quantity. PicoVolt will be a name to trust and one that will last. We hire the most qualified personnel to insure top quality to our customers. We want to earn your trust, and your business for the long haul.

"Picovolt did a great job. Very professional."

David M on February 2018

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Energy Efficiency Auditing questions, answered by experts

The best way to save money on home heating oil is to get large deliveries in the summer months when the prices are lowest. However, this method will only work if you have a separate storage tank or an unusually large primary tank. You can sometimes save money by opting into a delivery contract, as some companies offer set prices that they believe will sit at the average cost over the contract term. If the price of oil rises, you could enjoy some savings, but keep in mind that you might also pay a bit more if the price decreases.

Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.

You'll likely need more than great home staging to sell your home. Now is a great time to get to work on the curb appeal of your home . Hire local exterior painters and landscapers to coat the exterior of your home and bring it new life with some sprucing up.

Solar water heating systems are not one-size-fits-all. You'll likely work with a team of experts to get the job done—including solar panel installers, plumbers, and water heater installers. A specialist will help you decide if a passive or active system is best for your local weather, home layout, roof stability, and your budget.

Thankfully, LED lights use less electricity than incandescent lights, meaning you won’t spend as much on utility bills by using these light strips. Each 5-meter LED light strip will cost about $3 per year on your energy bill.

The Winston, GA homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.