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TRUSTED BY OVERLEA, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon30
    Verified energy efficiency auditing services reviews

Top-Rated Energy efficiency auditors in Overlea - Updated Nov 2026

Elysian Energy, LLC
New to Angi
Home Energy Audit

Serving Overlea, MD and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

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! \n \n

Response time1 day
Avatar for Home Energy Saving Solutions
Home Energy Saving Solutions
5.0(
92
)
Energy Audit - For BusinessHome Energy Audit

Serving Overlea, MD and surrounding areas

In business since 2010

Warranties offered

Credit card accepted

"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."
Common air leaks
Thermal image picks up moisture
Common air leaks
Thermal image picks up moisture
Thermal image showing air leakage

+1

Response time2 days
Response rate100%
Recommended by100%of homeowners
Avatar for Home Energy Loss Professionals (HELP)
Home Energy Loss Professionals (HELP)
4.4(
73
)
Energy Audit - For BusinessHome Energy Audit

Serving Overlea, MD and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"The Energy audit crew were punctual. They expected time of the audit was within the time frame that they quoted. I received a overall evaluation and list of things of suggested that would help to improve the overall energy efficiency of my home along with rebates."
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+1

Recommended by87%of homeowners
Avatar for Atlas Home Energy Solutions
Atlas Home Energy Solutions
4.7(
14
)
Energy Audit - For BusinessHome Energy Audit

Serving Overlea, MD and surrounding areas

In business since 2009

Free estimates

Warranties offered

"Atlas Home Energy performed an energy audit in my home, and based on the findings corrected all issues over a four day course. Their workmanship is flawless and their employees are pleasant and courteous. The bulk of their charge was reimbursed by BGE and my energy cost has declined. I recommend them highly"
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+16

Response time3 days
Response rate100%
Recommended by91%of homeowners
Avatar for Smart Energy Pros
Smart Energy Pros
4.3(
19
)
Home Energy Audit

Serving Overlea, MD and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"Brian came out to perform an energy audit on my home. He arrived on time, was respectful of my home and showed me where my insulation was missing with his infrared camera! His report came two days later as promised with a reasonable quote."
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation

+8

Response time8 hrs
Response rate96%
3 neighbors recently requested a quote
Avatar for Renewable Engineered Systems
Renewable Engineered Systems
4.7(
12
)
Energy Audit - For BusinessHome Energy Audit

Serving Overlea, MD and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Wonderful, it was a very quick and easy process. Brian talked us through it and in no time we had a 3KW system mounted on a frame in the garden and the invertor installed in the basement. Brian talked us through working with our power company to get the system checked and approved and we now get credits from the power company for power we provide to the grid. In addition we are set up to get Solar Renewable Energy Credits (SRECs) payments for providing clean energy. We also got a free Energy Audit which helped locate some problems areas we were able to fix. The system has basically cut our energy costs in half. I have hesitation in recommending them to anyone interested in solar energy."
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+14

Recommended by100%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Yes, Tesla Powerwalls are worth the upfront costs, as you can recoup your investment within six to eight years. Plus, they provide peace of mind that you'll have power during a power outage, and, depending on the system you install, you can become energy-independent. While they may be more expensive than other solar power systems, they offer higher battery capacity and lifespan.

There are energy-efficient options when building a cottage. Select green building materials, high-performance insulation, and energy-efficient windows when designing your cottage. Options such as solar panels, efficient HVAC systems, and LED lighting can lower your utility bills and reduce your environmental impact. Many builders offer energy-efficient upgrades as part of the design process.

R-value measures an insulation material's thermal resistance, indicating its ability to resist heat transfer. A higher R-value signifies better insulation performance because the material is more effective at slowing heat flow. The R-value depends on the type, thickness, and density of the insulation material, such as fiberglass, foam, or cellulose. Each inch of insulation typically provides an R-value between 3 and 8. There is no single universal R-value; the optimal choice depends on your climate zone. Colder climates require a much higher R-value than warmer ones to maintain energy efficiency, keep the home warm in winter and cool in summer, and manage costs.

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.

Expert installation optimizes insulation properties, cutting energy costs and enhancing home comfort year-round.

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.