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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon10
    Verified energy efficiency auditing services reviews

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

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

Serving Lansdowne, VA 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
Avatar for Comfenergy
Comfenergy
3.9(
50
)
Home Energy AuditEnergy Audit - For Business

Serving Lansdowne, VA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Very easy to work with. Their repncame out and did a free home energy audit in a timely manner. They then go over over everything they find. He walked me through everything he found. The list he came up was priced out but was definitely a little more than I wanted to spend...but he worked with me to figure out what items to fix that would give me the most bang for my buck at the cost wanted to spend. We definitely notice an improvement in the house from the fixes. I would recommend these guys."
Attic before
Attic after
Historic Waterford Home
Historic Plaque
Crawl space before

+6

Response time1 day
111 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for 3 PROS Basement System
3 PROS Basement System
4.0(
39
)
Home Energy AuditEnergy Audit - For Business

Serving Lansdowne, VA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Dr. Energy Saver was very thorough in finding the comfort and energy issues in one of my customers homes. They showed the customer exactly what was going on, why they had any issues, and how they were going to solve them. They provided a prioritized list of solutions for them too so they could pick and choose the importance to the homeowner. All work was done in a timely fashion, was clean, and fixed their issues."
Crawl Space Before Picture
Finished!
Beautiful Encapsulated Crawl space
SaniDry Sedona
Spray Foamed walls

+32

Response time1 day
84 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Stephen Palmer Electric Inc
Stephen Palmer Electric Inc
4.6(
144
)
Energy Audit - For BusinessHome Energy Audit

Serving Lansdowne, VA and surrounding areas

In business since 1994

Credit card accepted

"Amazing. Ronnie was super professional, very diligent, explained everything, meticulous, and cleaned up very thoroughly afterwards. We have a particularly difficult attic, yet the electrician navigated it it deftly. We would definitely hire this company again, and are already planning our next job."
Old House Specialists
We pride ourselves on working quickly, cleanly, and efficiently.
Recommended by87%of homeowners
Avatar for Evergreen Electric LLC
Evergreen Electric LLC
4.9(
36
)
Energy Audit - For BusinessHome Energy Audit

Serving Lansdowne, VA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"I wanted to use a locally owned electrical company, if possible, and was very happy to see the number of very good reviews for Evergreen Electric on Angie's list. I called early in the morning and Evergreen Electric was able to work me into their schedule on the same day which I was very grateful for due to the safety concerns of not having properly working smoke alarms in my house. Thad Sale and his assistant showed up at the appointed time and changed out the six smoke alarms very quickly. They also changed out one I had forgotten about (basement) while they were at my house. Also, Thad Sale gave me an estimate for a potential new electric project which seemed very reasonable. Evergreen was very professional and answered all my questions. The work was done very quickly and I feel much safer having properly working smoke alarms in my house. I would definitely call Evergreen Electric for my next electrical project.

"
Recommended by100%of homeowners
H & F Service Co
4.8(
1,512
)
Energy Audit - For BusinessHome Energy Audit

Serving Lansdowne, VA and surrounding areas

In business since 1972

Emergency services offered

Credit card accepted

"Was thoroughly impressed by H and F. I needed to replace an electric heat pump that was 30+ years old and on the verge of failing, and had a pretty good idea of what I wanted based on some research and quotes I had from other HVAC companies. Not only is H and F highly rated on this site, they also came in with lowest quote (and better warranties) for a 15 SEER Carrier with humidifier. Installation went smoothly, Michael and Dexter were consummate professionals and had my new system up and running in about five hours. I would highly recommend them to anyone in the North Virginia area. High quality and reasonable price. Will definitely use them for follow-on maintenance."
Recommended by94%of homeowners
Avatar for Renewable Engineered Systems
Renewable Engineered Systems
4.7(
12
)
Energy Audit - For BusinessHome Energy Audit

Serving Lansdowne, VA 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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Additional Photos

+14

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

There are a few ways to reduce your electricity bills if you use window AC units to keep cool. Set the unit temperature at least 1 degree higher than it is currently to reduce costs. Keep the unit clean for it to run efficiently. You may want to hire a window AC specialist near you to inspect the unit once a year and keep it in tip-top shape.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

The answer is a resounding yes, as dishwashers save significant water and energy compared to washing dishes by hand. The difference is so drastic in fact that those who use energy-efficient dishwashers can expect savings of over $450 per year. This is because dishwashers use less water, they wash at a higher temperature than a hand rinse, and you don’t need to rinse them after washing. New dishwashers use around 4 gallons per load, whereas washing by hand can use up to 2 gallons per minute.

The extra insulation helps reduce energy costs by minimizing drafts and temperature exchange between indoors and outdoors.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

The Lansdowne, VA homeowners’ guide to energy efficiency auditing services

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