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TRUSTED BY COLESVILLE, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon74
    Verified energy efficiency auditing services reviews

Verified Reviews for Energy Efficiency Auditing pros in Colesville, MD

*The Angi rating for Energy Efficiency Auditing companies in Colesville, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Colesville, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on October 09, 2026

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

Avatar for EDGE Energy
EDGE Energy
4.5(
51
)
Home Energy Audit

Serving Colesville, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Edge Energy did an energy audit for us, then sealed the house, installed a new roof with excellent insulation, and an ERV fan to ensure fresh air. They were a delight to work with throughout, very friendly and professional. We needed some follow up work due to quirks in the house, not bad work by Edge, and they did it promptly and without charge. I couldn't recommend them more highly."
Infrared finds air leaks!
All PM's are certifed under BPI, NCI, RESNET, NAHB
Air-sealing and insulating attics is our SPECIALTY
Locally Owned Business
Weatherization Truck

+5

Recommended by89%of homeowners
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Avatar for Elite Thermal East
Elite Thermal East
4.3(
105
)
Home Energy Audit

Serving Colesville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"I had a full house evaluation. Elite Thermal was able to use that to get me a significant discount. They came and did the service in in one day and then returned a few weeks afterwards to find tune and the leaks that were identified on the follow up blower test. They changed the wrong exhaust fan and then did the right one at no additional charge. I would definitely work with them again. Actually, they have done an evaluation and an estimate on my second home and I expect to have them start soon."
Cellulose Blown Insulation - Rem/Repl Before/After
Cellulose Blown Insulation - Before/After
Cellulose Blown Insulation - Before/After
Fiberglass Batt - Before/After
Fiberglass Batt - Remove & Replace - Before/Af

+5

Response time1 day
Response rate95%
80 neighbors recently requested a quote
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Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Energy Audit - For BusinessHome Energy Audit

Serving Colesville, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"It took a few hours to set up. After I figured out the Ecobee thermostat I was able to successfully program it. Technicians are considerate and aim to please."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 hrs
Response rate100%
6 neighbors recently requested a quote
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Avatar for Lumeco Energy
Lumeco Energy
5.0(
5
)
Home Energy Audit

Serving Colesville, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I highly recommend Lumeco Energy. They did my home energy audit and gave me some good recommendations. We chose to air seal our attic and add more insulation. They were able to get me some rebates from BGE so the pricing was discounted."
Attic Encapsulation 1
Attic Encapsulation 2
Attic Encapsulation 3
Attic Before 1
Attic Pre-Weatherization

+5

Response time2 days
Response rate96%
10 neighbors recently requested a quote
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Avatar for Complete Home Solutions, LLC
Complete Home Solutions, LLC
3.9(
85
)
Home Energy Audit

Serving Colesville, MD and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"They communicated well, showed up on time, weâ re very polite and thorough."
Stone Front of Addition
Kitchen
.
After
Screened Porch and Deck

+93

Response time1 day
46 neighbors recently requested a quote
Recommended by73%of homeowners
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Elysian Energy, LLC
New to Angi
Home Energy Audit

Serving Colesville, 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
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Avatar for Home Energy Saving Solutions
Home Energy Saving Solutions
5.0(
92
)
Energy Audit - For BusinessHome Energy Audit

Serving Colesville, MD and surrounding areas

In business since 2010

Warranties offered

Credit card accepted

"Great. The energy audit identified the source of the humidity infiltration. And the audit report identified adjustments needed to the exhaust fan."
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
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Avatar for Atlas Home Energy Solutions LLC
Atlas Home Energy Solutions LLC
4.9(
106
)
Home Energy Audit

Serving Colesville, MD and surrounding areas

In business since 2009

Free estimates

Warranties offered

"This probably the most professional service organization I've worked with in any capacity. They did a comprehensive audit and we discussed issues that could be remediated prioritized by the biggest bang for the buck and then they did the fixes we agreed upon. I always felt like I was dealing with an expert who had my best interests at heart - work that they could have done that they advised could be deferred. Ended up increasing the insulation in the attic which I'd known for years was a problem and sealing the ducts which has made a noticeable difference. I'd happily recommend Atlas to anyone who thinks they might benefit from a home energy audit and efficiency upgrades."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time3 days
Response rate100%
Recommended by97%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Leaving vents open but closing doors in unused rooms will probably not save money on your energy bill. Closed doors prevent the natural flow of air throughout the home, which could reduce the efficiency of the overall HVAC system. They could also restrict airflow into and through the return vents, making the HVAC system less efficient.

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.

While some aspects of an appraisal, such as comparable properties nearby, are out of your control, there are several steps you can take to potentially increase your home's value. Make any necessary repairs and upgrades before the appraiser's visit, as they can only value what is currently part of the home, not its potential. Examples include renovating older areas, updating landscaping to boost curb appeal, and staging your home. You can also provide the appraiser with the cost of recent upgrades, which may increase your home's value by about 50% or more of what you paid for those improvements.

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.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

The Colesville, MD homeowners’ guide to energy efficiency auditing services

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