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TRUSTED BY GRANTVILLE, GA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon27
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Grantville

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
136 local quotes requested
39 years of experience

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
210 local quotes requested

**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


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
5 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 Coolray Heating & Air Conditioning

Coolray Heating & Air Conditioning

4.82(
1,231
)
Approved Pro

Coolray Heating & Air Conditioning

4.82(
1,231
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
89 local quotes requested

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.

"Stephen and Randy Arrived early, worked professionally and efficiently. Left everything neat and clean and explained to me the installation and the functions of the thermostat and how to change the filter. Very happy with their work."

Maria P 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.

"Stephen and Randy Arrived early, worked professionally and efficiently. Left everything neat and clean and explained to me the installation and the functions of the thermostat and how to change the filter. Very happy with their work."

Maria P on November 2025


Avatar for Peachy Power

Peachy Power

No reviews yet

Peachy Power

No reviews yet
2 years of experience

Residential solar power . Free in home evaluation and quotes. No upfront costs ,financing available . Excellent customer service and support the whole way through. We can set up an appointment to evaluate your energy usage and see how much we can save by going solar . Goodbye utility company. Hello the greener world of renewable energy.

Residential solar power . Free in home evaluation and quotes. No upfront costs ,financing available . Excellent customer service and support the whole way through. We can set up an appointment to evaluate your energy usage and see how much we can save by going solar . Goodbye utility company. Hello the greener world of renewable energy.


We Love Solar

No reviews yet

We Love Solar

No reviews yet
4 years of experience

We love helping families go solar. We work with several installers to get you up and going quickly with the best finance options. Stop talking to sales guys and door knockers who only want to take advantage of your lack of knowledge just to line their pockets with inflated commissions. We get you installed on average in about 45 days or less. If you want to learn the truth about solar, how it works, and how much you can save we are willing to help. Let's walk through your power bill and break down all the charges to see exactly where your hard-earned money is going. Renting energy is a waste of money. You already own your car, and your home, It's time you own your energy!

We love helping families go solar. We work with several installers to get you up and going quickly with the best finance options. Stop talking to sales guys and door knockers who only want to take advantage of your lack of knowledge just to line their pockets with inflated commissions. We get you installed on average in about 45 days or less. If you want to learn the truth about solar, how it works, and how much you can save we are willing to help. Let's walk through your power bill and break down all the charges to see exactly where your hard-earned money is going. Renting energy is a waste of money. You already own your car, and your home, It's time you own your energy!


Avatar for RSS Solar

RSS Solar

No reviews yet

RSS Solar

No reviews yet
Free onsite estimate

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.


Johnson Air Services

5.00(
8
)

Johnson Air Services

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Johnson Air Services is a local family owned company, and we pride ourselves with a fast , honest service to have your HVAC system back up and running. I have over 16 years of quality experience in the industry so I know what it takes to get the job done right. We'd love to hear from you today so call or click for an estimate!

"Very pleased with the replacement of both units in our attic and outside all work was completed in a completely professional manner while it’s never enjoyable to pay for a new system Johnson made it very fair and painless. -Professional -Fair -Timely -Family Business -Local Give them a call you’ll be glad you did we are."

James R on July 2021

Johnson Air Services is a local family owned company, and we pride ourselves with a fast , honest service to have your HVAC system back up and running. I have over 16 years of quality experience in the industry so I know what it takes to get the job done right. We'd love to hear from you today so call or click for an estimate!

"Very pleased with the replacement of both units in our attic and outside all work was completed in a completely professional manner while it’s never enjoyable to pay for a new system Johnson made it very fair and painless. -Professional -Fair -Timely -Family Business -Local Give them a call you’ll be glad you did we are."

James R on July 2021


Avatar for Bester HVAC, Electrical And Plumbing

Bester HVAC, Electrical And Plumbing

3.00(
2
)

Bester HVAC, Electrical And Plumbing

3.00(
2
)
Customers say: Terrific value
10 years of experience

Bester HVAC is proud to offer my customers easy apply financing through Hearth. Hello this is Kwame from Bester HVAC. We are a small family owned business and have been in business for 5 years. We focus on making sure you the customer get your issues diagnosed quickly and professional. We strive to make sure our customers have every bit of information so can make an informed decision. We also pride ourselves on having integrity, honesty, and we are trustworthy. We will tell you exactly what's needed to have your system running or to have it replaced. Due to Covid 19 we are limiting contact. With that being said I can usually quote a system replacement from either a picture of the labels or a system size, type, air handler/furnace location and city location. We will get you the best price on goodman, smart-comfort/carrier, or Payne equipment. We also do not require an upfront payment for equipment deposits. We operate off of trusting our customers from the beginning. Trust is earned and we believe that we will show the first sign of trust by taking your word for gold. I personally have been in HVAC for over 15 years and I have experience in all types of systems and home setups. From split levels, ranch style, apartment/condo, or traditional homes. I also am a former Apartment Maintenance Supervisor as well so we do it all from single family homes to multifamily homes as well. Payments Accepted are credit/debit cards, as well as a plethora of digital payments. All of my quotes are good for 1 calendar year. The price I quote you will be flat rate + 8% sales tax. We are based locally in powder springs GA but we travel up to 100 mile radius so don't hesitate to reach out to us. We usually can beat any written quote by at least 15%. If you need help don't stress call the Best. Kwame Bester Bester HVAC 225-603-3070

"The initial meet up was ok. He came and setup the AC system while I was at work. My 1st mistake. When I came home I discovered he input the wrong size system than what we agreed to. He also went into the attic and did not say that the system he just installed was not compatible with the unit I have in my home. I don't mind paying money if it is needed, but now he will not answer to correct his mistakes. Do not go to this company. They are not reliable and they will be stealing your money. Now I have to pay some else to replace the entire system. Not worth my time or energy."

Ashley B on August 2020

Bester HVAC is proud to offer my customers easy apply financing through Hearth. Hello this is Kwame from Bester HVAC. We are a small family owned business and have been in business for 5 years. We focus on making sure you the customer get your issues diagnosed quickly and professional. We strive to make sure our customers have every bit of information so can make an informed decision. We also pride ourselves on having integrity, honesty, and we are trustworthy. We will tell you exactly what's needed to have your system running or to have it replaced. Due to Covid 19 we are limiting contact. With that being said I can usually quote a system replacement from either a picture of the labels or a system size, type, air handler/furnace location and city location. We will get you the best price on goodman, smart-comfort/carrier, or Payne equipment. We also do not require an upfront payment for equipment deposits. We operate off of trusting our customers from the beginning. Trust is earned and we believe that we will show the first sign of trust by taking your word for gold. I personally have been in HVAC for over 15 years and I have experience in all types of systems and home setups. From split levels, ranch style, apartment/condo, or traditional homes. I also am a former Apartment Maintenance Supervisor as well so we do it all from single family homes to multifamily homes as well. Payments Accepted are credit/debit cards, as well as a plethora of digital payments. All of my quotes are good for 1 calendar year. The price I quote you will be flat rate + 8% sales tax. We are based locally in powder springs GA but we travel up to 100 mile radius so don't hesitate to reach out to us. We usually can beat any written quote by at least 15%. If you need help don't stress call the Best. Kwame Bester Bester HVAC 225-603-3070

"The initial meet up was ok. He came and setup the AC system while I was at work. My 1st mistake. When I came home I discovered he input the wrong size system than what we agreed to. He also went into the attic and did not say that the system he just installed was not compatible with the unit I have in my home. I don't mind paying money if it is needed, but now he will not answer to correct his mistakes. Do not go to this company. They are not reliable and they will be stealing your money. Now I have to pay some else to replace the entire system. Not worth my time or energy."

Ashley B on August 2020


Better Tomorrow Solar

No reviews yet

Better Tomorrow Solar

No reviews yet
Free onsite estimate

Better Tomorrow Solar is a turnkey solar installation firm operating from Atlanta, GA. We work to make renewable energy accessible to as many communities as possible, through expert service and game-changing financing options for solar installations. We offer provide clients with solar panel installations tailor fitted to each individual's unique lifestyle, schedule, and budget. There's nothing we like better than helping others experience for themselves the many benefits of solar energy. Take a look at our process to see if solar is right for you. Or check out our project calculator to see how much you could save every month. Our mission is to make solar power available to everyone. We do that by removing the upfront cost to ensure long-term energy price predictability for our customers. A cleaner, greener, more resilient world isn't just a nice dream - it has become an achievable reality. Solar energy in Georgia is affordable and simple for anyone who wants to join the movement and step into the future. Join the hundreds who run their lives on clean solar energy, ask for your free home solar consultation today!

Better Tomorrow Solar is a turnkey solar installation firm operating from Atlanta, GA. We work to make renewable energy accessible to as many communities as possible, through expert service and game-changing financing options for solar installations. We offer provide clients with solar panel installations tailor fitted to each individual's unique lifestyle, schedule, and budget. There's nothing we like better than helping others experience for themselves the many benefits of solar energy. Take a look at our process to see if solar is right for you. Or check out our project calculator to see how much you could save every month. Our mission is to make solar power available to everyone. We do that by removing the upfront cost to ensure long-term energy price predictability for our customers. A cleaner, greener, more resilient world isn't just a nice dream - it has become an achievable reality. Solar energy in Georgia is affordable and simple for anyone who wants to join the movement and step into the future. Join the hundreds who run their lives on clean solar energy, ask for your free home solar consultation today!

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Energy Efficiency Auditing questions, answered by experts

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

R-value is calculated by dividing the thickness of an insulation material by its thermal conductivity. The material's composition and density influence thermal conductivity. Materials with lower conductivity values provide better insulation. The higher the R-value, the better the material is at insulating, helping homeowners select insulation that meets the energy needs of their climate and home layout.

Yes, most audits include a report with prioritized recommendations for improving energy efficiency. Confirm with your auditor.

While you can perform many routine home maintenance jobs yourself, it’s often a good idea to bring pros in for certain tasks. HVAC maintenance, fireplace and chimney inspections, foundation repairs, and roof inspections and repairs should be handled by professionals who know what to look for and can safely perform repairs. You may also find it helpful to hire a local house cleaning service to help with deep cleaning.

It’s not recommended to turn off your breaker box in hopes of saving electricity. Breaker boxes were not designed to constantly be switched on and off. Therefore, turning off breakers unnecessarily can cause costly damage that outnumbers any energy savings. Only flip your breakers if absolutely necessary when troubleshooting an electrical issue.

The Grantville, 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.