Get matched with top energy efficiency auditors in Thurmont, MD

Home Energy Saving Solutions

4.97(

Recommended by 100% of Angi customers

2010 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

"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

Atlas Home Energy Solutions LLC

Atlas Home Energy Solutions LLC

Recommended by 97% of Angi customers

2009 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. 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.

"Atlas home energy solutions did an outstanding job from start to finish. They were professional, knowledgeable, courteous and easy to work with. All the crew members Ben Mott (was very knowledgeable, did the home energy audit, followed up with competitive quotes, which was adjusted to accommodate my request, offered BGE rebates upfront, patient and friendly to attend my calls and answer all the questions), Zam (Crew leader who did the exhaust fan installation), Tun (Crew leader who did an outstanding job to insulate the attic and basement), David (Crew leader who did duct cleaning and Aeroseal) were phenomenal and did an outstanding job. The end result is a day and night difference before and after the work and my BGE bill last month went down by more than $100 which is a huge cost saver. The HVAC does not run that much these days and the temperature is pretty even across the 30-year townhouse. I highly recommend Atlas home energy solutions for home energy audit and improvements."

Chandra V on April 2024

"Atlas home energy solutions did an outstanding job from start to finish. They were professional, knowledgeable, courteous and easy to work with. All the crew members Ben Mott (was very knowledgeable, did the home energy audit, followed up with competitive quotes, which was adjusted to accommodate my request, offered BGE rebates upfront, patient and friendly to attend my calls and answer all the questions), Zam (Crew leader who did the exhaust fan installation), Tun (Crew leader who did an outstanding job to insulate the attic and basement), David (Crew leader who did duct cleaning and Aeroseal) were phenomenal and did an outstanding job. The end result is a day and night difference before and after the work and my BGE bill last month went down by more than $100 which is a huge cost saver. The HVAC does not run that much these days and the temperature is pretty even across the 30-year townhouse. I highly recommend Atlas home energy solutions for home energy audit and improvements."

Chandra V on April 2024

HomeGuard Foam & Foundation

4.73(

HomeGuard Foam & Foundation

4.73(

Customers say: Quality work

Recommended by 91% of Angi customers

2020 years of experience

Committed to creating energy-efficient, durable homes. We take pride in doing things the right way, specializing in spray foam insulation, crawl space solutions, insulation, foundation repair, and waterproofing. Our expert team protects homes from water damage, foundation issues, and energy loss, ensuring lasting comfort and structural integrity for homeowners.

"Installer put hole through ceiling and they wonâ t accept responsibility for it. They said they didnâ t do it. I was sitting in room when it happened. Not trustworthy. ð"

Virginia L on November 2023

"Installer put hole through ceiling and they wonâ t accept responsibility for it. They said they didnâ t do it. I was sitting in room when it happened. Not trustworthy. ð"

Virginia L on November 2023

Atlas Home Energy Solutions

4.69(

Atlas Home Energy Solutions

4.69(

2009 years of experience

Free onsite estimate

At Atlas Home Energy Solutions, we specialize in helping homeowners save money and enjoy a more comfortable living environment. Based in Maryland, we offer expert energy audits, insulation upgrades, duct sealing, and other energy efficiency services tailored to your home's unique needs. Our team works closely with you to identify energy waste, improve home performance, and lower your energy bills—all while ensuring every room in your house stays cozy year-round. Whether it's sealing drafty spaces, upgrading insulation, or enhancing airflow, we’re here to help you save money without sacrificing comfort. Discover how Atlas Home Energy Solutions can make your home more efficient, your energy bills more manageable, and your indoor spaces more enjoyable. Contact us today for expert service and long-lasting results! Services Include: Professional home energy audits Attic and crawl space insulation Aeroseal® duct sealing Energy efficiency upgrades Your Comfort is Our Priority!

"They did a great Job"

Kenneth G on June 2025

"They did a great Job"

Kenneth G on June 2025

Elysian Energy, LLC

New on AngiNew on Angi

Elysian Energy, LLC

New on AngiNew on Angi

2007 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!

American Home Contractors Inc

4.85(

1,911

American Home Contractors Inc

4.85(

1,911

Recommended by 95% of Angi customers

For over 35 years, American Home Contractors has provided exterior household services and upgrades across Northern Virginia, Washington DC, and Maryland. American Home takes great pride in ensuring customer satisfaction and commits to delivering the highest quality of work when renovating any home.

"Excellent job by Mike Geordano and American Home Contractors. On-time, courteous, and above-and-beyond service. Mike used booties without asking, took good photos, and the debrief was excellent. This is the second time I have used AHC and second time I had Mike, and if and as needed I will again."

Steven O on March 2025

"Excellent job by Mike Geordano and American Home Contractors. On-time, courteous, and above-and-beyond service. Mike used booties without asking, took good photos, and the debrief was excellent. This is the second time I have used AHC and second time I had Mike, and if and as needed I will again."

Steven O on March 2025

Maryland Solar Solutions Inc

5.00(

Maryland Solar Solutions Inc

5.00(

Customers say: Quick response

Recommended by 100% of Angi customers

Maryland Solar Solutions Inc is a full-service, turn-key solar integrator serving all of Maryland. We provide grid-tied solar electric (photovoltaic) systems. We design, install & monitor. We handle all necessary documentation for grants, permitting & interconnection. We partner with a licensed electrician & other solar installation professionals as the need arises. 5 year warranty, 5 year monitoring & maintenance packages offered with all systems. Financing available.

"Great! Professional, patient and they do outstanding work. Although MSSI was more expensive than the other 3 companies from whom we received quotes, the extra money was more than worth it given their willingness to walk us through the process and respond to our many questions. Although I think I'm pretty well educated, I would highly recommend that a potential solar customer work with MSSI and pay the extra money--it'll save time and frustration in the long-run. An additional perk is that this is a woman-owned, US military veteran-owned company."

David M on April 2021

"Great! Professional, patient and they do outstanding work. Although MSSI was more expensive than the other 3 companies from whom we received quotes, the extra money was more than worth it given their willingness to walk us through the process and respond to our many questions. Although I think I'm pretty well educated, I would highly recommend that a potential solar customer work with MSSI and pay the extra money--it'll save time and frustration in the long-run. An additional perk is that this is a woman-owned, US military veteran-owned company."

David M on April 2021

High Performance Home LLC

4.91(

100

High Performance Home LLC

4.91(

100

Recommended by 97% of Angi customers

Super Service Award Winner 6 Years in a Row!! Special Pricing for Angie's List Members on all Insulation jobs. Energy Audit work! Veteran Owned & Operated, Family business focused on Exterior Upgrade Packages, Energy Efficient Improvements, Siding, Roofing, Windows, Doors, Gutters, Insulation, Efficiency Auditing, Decks, Screened Porches, Additions, and more.

"Hired them to do a BGE home energy audit, and Larry Tennant performed this for the company. This included an inspection of the attic insulation which resulted in a lot of ceiling drywall essentially coming off the joists, multiple nails popping through the paint. I was really unhappy with this new problem, since what was supposed to be a $100 energy audit now led to damage that would cost several hundred dollars to repair. From Larry's point of view, the ceiling drywall likely had pre-existing problems making it vulnerable to damage from the inspection, something he had no way of knowing. After a lot of discussion, Larry contributed $500 toward the costs of fixing the ceiling, a reasonable compromise for both parties since the drywall already appeared to have pre-existing issues. Through the experience, he was professional, responsive, and was 100% committed to finding a mutually agreeable solution months after the audit was completed. Even though I would have rather never gone through the experience, I have the highest level of respect for Larry's integrity and commitment to customer satisfaction. I would gladly hire him again if we needed his services again."

Stanley L on July 2019

"Hired them to do a BGE home energy audit, and Larry Tennant performed this for the company. This included an inspection of the attic insulation which resulted in a lot of ceiling drywall essentially coming off the joists, multiple nails popping through the paint. I was really unhappy with this new problem, since what was supposed to be a $100 energy audit now led to damage that would cost several hundred dollars to repair. From Larry's point of view, the ceiling drywall likely had pre-existing problems making it vulnerable to damage from the inspection, something he had no way of knowing. After a lot of discussion, Larry contributed $500 toward the costs of fixing the ceiling, a reasonable compromise for both parties since the drywall already appeared to have pre-existing issues. Through the experience, he was professional, responsive, and was 100% committed to finding a mutually agreeable solution months after the audit was completed. Even though I would have rather never gone through the experience, I have the highest level of respect for Larry's integrity and commitment to customer satisfaction. I would gladly hire him again if we needed his services again."

Stanley L on July 2019

Leffler Energy

4.53(

165

Leffler Energy

4.53(

165

Customers say: Super punctual

1941 years of experience

When it comes to getting the best savings for your home comfort services, it makes sense to trust the folks who live and work where you do. For years, Leffler Energy has been helping our local neighbors manage all of their home comfort needs (heating oil, propane, air conditioning, ductwork and more). From 24/7 service and support in any weather to heating oil pricing and payment plans that help you manage your heating costs all year, our services are all designed with you as the #1 priority. Find out why your PA neighbors choose us for their home comfort needs today!

"We have been with Leffler for years. They are dependable and professional."

Lori H on August 2021

"We have been with Leffler for years. They are dependable and professional."

Lori H on August 2021

Potomac View Energy

Potomac View Energy