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TRUSTED BY OVERLEA, MD HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon36
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Overlea

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
63 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 Heating & Cooling Certified Mechanic

Heating & Cooling Certified Mechanic

Po
4.97(
32
)
Approved Pro

Heating & Cooling Certified Mechanic

Po
4.97(
32
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
130 local quotes requested

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"The estimate process went very smoothly. The proposal was well written & allowed electronic signature. Communication leading up to the install date was timely and professional. The work was completed on time and correctly. The installation team was friendly and competent."

Stanley R on July 2025

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"The estimate process went very smoothly. The proposal was well written & allowed electronic signature. Communication leading up to the install date was timely and professional. The work was completed on time and correctly. The installation team was friendly and competent."

Stanley R on July 2025


Avatar for Horizon Services

Horizon Services

2607 N ROLLING RD
4.76(
29
)
Approved Pro

Horizon Services

2607 N ROLLING RD
4.76(
29
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
244 local quotes requested

When you need A/C, heating, or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing, heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Very well. They were very professional and efficient."

Barbara B on January 2023

When you need A/C, heating, or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing, heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Very well. They were very professional and efficient."

Barbara B on January 2023


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 York Home Performance, LLC

York Home Performance, LLC

1052 Mt. Rose Ave
4.75(
14
)
Approved Pro

York Home Performance, LLC

1052 Mt. Rose Ave
4.75(
14
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
13 local quotes requested

Diagnosing what's happening in your house is the first step toward a comfortable and efficient home. Our certified professionals have been trained to conduct energy audits that employ scientific instruments, computerized analysis and reporting and practical recommendations to improve your home's comfort and efficiency. With your energy audit data in hand, we can review your home's specific needs, and the range of solutions that fit within your budget. Our experience with rebate programs for customers of FirstEnergy Utilities, Baltimore Gas and Electric and PPL Electric takes the hassle out of improving your home. We're ready to assist homeowners with insulation, air sealing, heating and cooling and home exterior upgrades.

"We recently had York Home Performance complete an insulation upgrade at our home, and we couldn’t be happier with the results. From start to finish, their team was professional, knowledgeable, and incredibly efficient. Chris and Garnett were great. Chris took the time to evaluate our home's needs and walked us through the entire process so we knew exactly what to expect. One of the most impressive parts of the experience was how he helped us find excellent discounts that we didn’t even know were available. Thanks to his expertise, we were able to take advantage of local utility incentives that significantly reduced the overall cost—making the project extremely affordable. The quality of the insulation work itself was top-notch. Our home is noticeably more comfortable, and we know we will see a difference in our energy bills. It's rare to find a company that combines great workmanship with outstanding customer service and affordability, but York Home Performance delivered on all fronts"

Roy P on September 2025

Diagnosing what's happening in your house is the first step toward a comfortable and efficient home. Our certified professionals have been trained to conduct energy audits that employ scientific instruments, computerized analysis and reporting and practical recommendations to improve your home's comfort and efficiency. With your energy audit data in hand, we can review your home's specific needs, and the range of solutions that fit within your budget. Our experience with rebate programs for customers of FirstEnergy Utilities, Baltimore Gas and Electric and PPL Electric takes the hassle out of improving your home. We're ready to assist homeowners with insulation, air sealing, heating and cooling and home exterior upgrades.

"We recently had York Home Performance complete an insulation upgrade at our home, and we couldn’t be happier with the results. From start to finish, their team was professional, knowledgeable, and incredibly efficient. Chris and Garnett were great. Chris took the time to evaluate our home's needs and walked us through the entire process so we knew exactly what to expect. One of the most impressive parts of the experience was how he helped us find excellent discounts that we didn’t even know were available. Thanks to his expertise, we were able to take advantage of local utility incentives that significantly reduced the overall cost—making the project extremely affordable. The quality of the insulation work itself was top-notch. Our home is noticeably more comfortable, and we know we will see a difference in our energy bills. It's rare to find a company that combines great workmanship with outstanding customer service and affordability, but York Home Performance delivered on all fronts"

Roy P on September 2025


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!


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.


Bayfront Heating and A/C

5.00(
6
)

Bayfront Heating and A/C

5.00(
6
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a small family owned company. We are reliable, trustworthy, and caring. We offer replacement, service, duct modification, and maintenance.

"I received great service with this company! My problem was fixed in a timely manner and done efficiently. I even received a call months down the road from the company making sure everything was still running smoothly. I’m highly impressed with this company and will use them again/recommend them to anyone who has HVAC needs! Thank you to Nick and Bayfront for your great service!"

Ryshelle W on December 2022

We are a small family owned company. We are reliable, trustworthy, and caring. We offer replacement, service, duct modification, and maintenance.

"I received great service with this company! My problem was fixed in a timely manner and done efficiently. I even received a call months down the road from the company making sure everything was still running smoothly. I’m highly impressed with this company and will use them again/recommend them to anyone who has HVAC needs! Thank you to Nick and Bayfront for your great service!"

Ryshelle W on December 2022


Denman Heating & Air Conditioning

No reviews yet

Denman Heating & Air Conditioning

No reviews yet

At Denman Heating & Air Conditioning we provide maintenance, service and new installations and we are dedicated to providing you with fast, honest and affordable service for all your Heating and Air Conditioning needs, we are a small family business that believe in providing our clients with excellent service that won't break the bank

At Denman Heating & Air Conditioning we provide maintenance, service and new installations and we are dedicated to providing you with fast, honest and affordable service for all your Heating and Air Conditioning needs, we are a small family business that believe in providing our clients with excellent service that won't break the bank

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Energy Efficiency Auditing questions, answered by experts

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

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.

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.

The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency

A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.

Yes, barndominiums are energy-efficient as long as insulation professionals properly install quality insulation, windows, and doors. Utility bills for barndo living can be up to 50% lower than those for a traditional home.  Make your barndo more energy efficient by working with contractors and HVAC professionals to strategically place windows, doors, and heating/cooling systems. 

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The Overlea, 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.