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    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in North Brentwood

Avatar for Atlas Home Energy Solutions

Atlas Home Energy Solutions

1745 Dorsey Rd
4.69(
13
)
Approved Pro

Atlas Home Energy Solutions

1745 Dorsey Rd
4.69(
13
)
Approved Pro
Customers say: Super punctual
61 local quotes requested
16 years of experience

Atlas Home Energy Solutions is committed to providing the highest quality home energy improvements to homeowners interested in reducing their utility bills and improving the comfort of their home year round. We also qualify energy efficiency and comfort improvements in existing homes for significant utility rebates and federal tax credits, up to $10,000.00! Customer Satisfaction is our number one priority and we promise that we can make a real impact in your home in a way that keeps you happy every step of the way.

"5 stars!! Their pricing was the most competitive, and their communication was outstanding! Had our THOW insulated with closed cell spray foam and they did an awesome job from the very beginning of the process until the end. Would highly recommend!"

Shannon P on March 2023

Atlas Home Energy Solutions is committed to providing the highest quality home energy improvements to homeowners interested in reducing their utility bills and improving the comfort of their home year round. We also qualify energy efficiency and comfort improvements in existing homes for significant utility rebates and federal tax credits, up to $10,000.00! Customer Satisfaction is our number one priority and we promise that we can make a real impact in your home in a way that keeps you happy every step of the way.

"5 stars!! Their pricing was the most competitive, and their communication was outstanding! Had our THOW insulated with closed cell spray foam and they did an awesome job from the very beginning of the process until the end. Would highly recommend!"

Shannon P on March 2023


Avatar for Home Energy Saving Solutions

Home Energy Saving Solutions

5268G Nicholson Ln
4.97(
90
)
Approved Pro

Home Energy Saving Solutions

5268G Nicholson Ln
4.97(
90
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

As a Maryland certified Home Performance with Energy Star contractor, we focus on making homes efficient and comfortable. Our energy audits and energy efficiency improvements usually qualify for generous state incentives and rebates through Pepco, BGE, and Potomac Edison. Mo is the owner/operator at Home Energy Saving Solutions. He has a deep depth of knowledge and experience gained from well over 1000 energy audits. Participation in numerous industry groups and conferences further enhance the expertise brought to each home energy audit. We will inspect your entire home as a system and evaluate energy loss and comfort issues using advanced diagnostic equipment. At the conclusion of the audit you will be presented with a comprehensive report detailing all findings and solutions, along with a payback period for repair and retrofit options.

"Mohammed handled our project—sealing and insulating our attic. He was very knowledgeable about the best way to accomplish the task in an older home such as ours; and he also ensured that our project qualified for relevant energy rebates. He was professional and courteous in answering all our questions and completed the project in one day. We highly recommend HESS and Mohammed El-Goul."

Janet B on August 2024

As a Maryland certified Home Performance with Energy Star contractor, we focus on making homes efficient and comfortable. Our energy audits and energy efficiency improvements usually qualify for generous state incentives and rebates through Pepco, BGE, and Potomac Edison. Mo is the owner/operator at Home Energy Saving Solutions. He has a deep depth of knowledge and experience gained from well over 1000 energy audits. Participation in numerous industry groups and conferences further enhance the expertise brought to each home energy audit. We will inspect your entire home as a system and evaluate energy loss and comfort issues using advanced diagnostic equipment. At the conclusion of the audit you will be presented with a comprehensive report detailing all findings and solutions, along with a payback period for repair and retrofit options.

"Mohammed handled our project—sealing and insulating our attic. He was very knowledgeable about the best way to accomplish the task in an older home such as ours; and he also ensured that our project qualified for relevant energy rebates. He was professional and courteous in answering all our questions and completed the project in one day. We highly recommend HESS and Mohammed El-Goul."

Janet B on August 2024


Avatar for GAC Services

GAC Services

227 E Deer Park Dr
4.80(
279
)
Approved Pro

GAC Services

227 E Deer Park Dr
4.80(
279
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
652 local quotes requested

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025


F.H. Furr Plumbing Heating & Air Conditioning Inc

685 Lofstrand Lane
4.33(
15
)
Approved Pro

F.H. Furr Plumbing Heating & Air Conditioning Inc

685 Lofstrand Lane
4.33(
15
)
Approved Pro
Customers say: Super punctual
203 local quotes requested
44 years of experience

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025


Avatar for Cyprus Air Heating, Cooling and Fireplaces

Cyprus Air Heating, Cooling and Fireplaces

7525 Richmond Hwy
4.06(
491
)
Approved Pro

Cyprus Air Heating, Cooling and Fireplaces

7525 Richmond Hwy
4.06(
491
)
Approved Pro
Customers say: Quality work
24 local quotes requested
58 years of experience

FREE IN-HOME ESTIMATES | GET A FREE AIR CONDITIONER Cyprus Air Heating & Cooling is your single resource for all your home comfort needs, from tailoring your ideal comfort system to installation, service and beyond. Cyprus Air installs and repairs a variety of Heating & Cooling equipment. With over 56 years of experience in the business, we also offer other home improvement and indoor comfort services such as Gas Fireplaces & Gas logs, and Duct Cleaning. With so many years of design, and installations in Northern Virginia, DC and Maryland, Cyprus Air offers its service oriented expertise and reliability to ensure the high quality standards that architects, engineers, and homeowners have come to rely on from one of the industry leaders.

"I called to get an inspection done on my AC unit and was quoted $90 for the inspection plus $120 an hr for ADDITIONAL hrs. I ASKED when do I know when the “additional hrs start”, He stated that the tech would let me know once the inspection was done and then at that time he would let me know if there was work that needed to be fixed or if there was nothing then the service would end and I would only have to pay the $90. They charged me $210 for the inspection. I called and requested that we both listen to the call (Because all calls are recorded) They played the call, heard what the rep said and then stated they would get back to me. When I finally reached them again (they never called me back), they stated I would not get a refund, then replayed the call cutting out the part when the rep stated clearly that the service was only $90. They not only GASLIGHTED me, but they altered the recording. $120 may not matter to most but it sure matters to me."

Kay H on June 2025

FREE IN-HOME ESTIMATES | GET A FREE AIR CONDITIONER Cyprus Air Heating & Cooling is your single resource for all your home comfort needs, from tailoring your ideal comfort system to installation, service and beyond. Cyprus Air installs and repairs a variety of Heating & Cooling equipment. With over 56 years of experience in the business, we also offer other home improvement and indoor comfort services such as Gas Fireplaces & Gas logs, and Duct Cleaning. With so many years of design, and installations in Northern Virginia, DC and Maryland, Cyprus Air offers its service oriented expertise and reliability to ensure the high quality standards that architects, engineers, and homeowners have come to rely on from one of the industry leaders.

"I called to get an inspection done on my AC unit and was quoted $90 for the inspection plus $120 an hr for ADDITIONAL hrs. I ASKED when do I know when the “additional hrs start”, He stated that the tech would let me know once the inspection was done and then at that time he would let me know if there was work that needed to be fixed or if there was nothing then the service would end and I would only have to pay the $90. They charged me $210 for the inspection. I called and requested that we both listen to the call (Because all calls are recorded) They played the call, heard what the rep said and then stated they would get back to me. When I finally reached them again (they never called me back), they stated I would not get a refund, then replayed the call cutting out the part when the rep stated clearly that the service was only $90. They not only GASLIGHTED me, but they altered the recording. $120 may not matter to most but it sure matters to me."

Kay H on June 2025


Avatar for Lumeco Energy

Lumeco Energy

8643 Cherry Lane
5.00(
5
)
Approved Pro

Lumeco Energy

8643 Cherry Lane
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Lumeco Energy is a locally owned and operated energy efficiency company that values honesty and integrity and treats your home as if it were our own. We offer BGE and Pepco rebates for all of our services and guarantee excellent customer service. Bottom line, we take care of our customers and offer utility rebates for all of our services. Our customers pay less for more!

"I insulated my attic, and upgraded my HVAC system through BGEâ s home performance program. Lumeco was my contractor and they did a fantastic job and pricing was discounted. Great company!"

James O on April 2024

Lumeco Energy is a locally owned and operated energy efficiency company that values honesty and integrity and treats your home as if it were our own. We offer BGE and Pepco rebates for all of our services and guarantee excellent customer service. Bottom line, we take care of our customers and offer utility rebates for all of our services. Our customers pay less for more!

"I insulated my attic, and upgraded my HVAC system through BGEâ s home performance program. Lumeco was my contractor and they did a fantastic job and pricing was discounted. Great company!"

James O on April 2024


Elysian Energy, LLC

14300 Cherry Lane Ct., Suite 214
New on AngiNew on Angi
Approved Pro

Elysian Energy, LLC

14300 Cherry Lane Ct., Suite 214
New on AngiNew on Angi
Approved Pro
18 years of experience
Free onsite estimate

Elysian Energy, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 50 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

Elysian Energy, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 50 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!


Avatar for Founders Insulation

Founders Insulation

4447 Brookfield Corporate Drive Suite A
4.93(
14
)
Approved Pro

Founders Insulation

4447 Brookfield Corporate Drive Suite A
4.93(
14
)
Approved Pro
Super Service Award
Customers say: Quick response
221 local quotes requested
3 years of experience

Founders Insulation, 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.

"I had a wonderful experience with Founders Insulation. They were extremely easy to work with. It was easy to schedule an appointment, the gentleman who came out was knowledgeable and polite, and I felt that I received good information and they did not try to sell me something I did not need. Their quote was excellent. The work was scheduled and completed quickly. The installation team was courtesy, thorough, and knew their stuff. They were respectful of my home and went above and beyond. I highly recommend this company."

Susan H on April 2025

Founders Insulation, 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.

"I had a wonderful experience with Founders Insulation. They were extremely easy to work with. It was easy to schedule an appointment, the gentleman who came out was knowledgeable and polite, and I felt that I received good information and they did not try to sell me something I did not need. Their quote was excellent. The work was scheduled and completed quickly. The installation team was courtesy, thorough, and knew their stuff. They were respectful of my home and went above and beyond. I highly recommend this company."

Susan H on April 2025


Avatar for United Solar

United Solar

No reviews yet

United Solar

No reviews yet

If you're looking to save money, stop renting your electricity from your electric company and take control of your monthly electric bill- solar can help! With great warranties, completely virtual and free consultations, we can evaluate your house, your needs and what solar will look like for you to see if its a good fit! Solar is growing and more and more people are reaping the finial benefits of solar every day. Contact me to see what solar would look like for you!

If you're looking to save money, stop renting your electricity from your electric company and take control of your monthly electric bill- solar can help! With great warranties, completely virtual and free consultations, we can evaluate your house, your needs and what solar will look like for you to see if its a good fit! Solar is growing and more and more people are reaping the finial benefits of solar every day. Contact me to see what solar would look like for you!


Avatar for RSS Solar

RSS Solar

Aurora Ave.
No reviews yet

RSS Solar

Aurora Ave.
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.

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Energy Efficiency Auditing questions, answered by experts

Home power is measured in kilowatt-hours, commonly expressed as kWh. The average home uses between 800 and 1,000 kWh per month. Peak usage (and highest bills) occurs in the middle of summer and the depths of winter. Keeping on top of your usage during these crucial months will lower your annual average usage considerably. 

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

Fireplaces can theoretically help you save on heating bills if you lower the temperature throughout the rest of your home and heat only a single room that you occupy using the fireplace. However, in most cases, homeowners won’t save any money on heating bills. Gas and electric fireplace inserts could actually lead to a spike in your respective energy bills if you use them frequently, and if you don’t keep up with chimney maintenance and repairs, your traditional masonry fireplace could actually be a source of heat loss in the winter.

Motion-sensor lights use one watt while on standby and five watts while turned on. They’re usually on for one hour over a 24-hour period, bringing the total wattage to about 28 watts per day. LED lights use around 6.5 to 8 watts while on. If you leave an LED light on all night, with night ranging from 10 to 14 hours, you’re looking at using 65 to 112 watts a night. You can minimally cut your wattage in half by switching to a motion-sensor light.

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

The North Brentwood, MD homeowners’ guide to energy efficiency auditing services

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

What do you need done? We’ll find top pros.
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