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*The Angi rating for Energy Efficiency Auditing companies in Windham, ME 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 Windham, ME 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 June 27, 2026

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Avatar for DH Insulation And Home Performance LLC
DH Insulation And Home Performance LLC
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Windham, ME and surrounding areas

Free estimates

"Work was phenomenal, small business owner dave was super courteous and work was professionally done. Answered all my questions. Was very satisfied thanks again dave!"
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Recommended by80%of homeowners
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Avatar for Bryan's Solar Energy Facebook
Bryan's Solar Energy Facebook
5.0(
1
)
Energy Audit - For BusinessHome Energy Audit

Serving Windham, ME and surrounding areas

In business since 2019

Credit card accepted

Offers commercial services

"I had a wonderful experience with this company. They were punctual, very friendly and kind, and clearly knew their business. I would highly recommend them to any homeowner! Great job Team!"
New gas and hot water
new electric
sfter completion
plumbing
Response time12 hrs
Recommended by100%of homeowners
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Avatar for Russells HVAC
Russells HVAC
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Windham, ME and surrounding areas

In business since 2018

Free estimates

"Wonderful . Service provider was fast, knowledgeable, honest and we love the heat pumps. One of the best investments we’ve ever made!!"
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+5

Recommended by100%of homeowners
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Avatar for Labyrinth Interior
Labyrinth Interior
4.3(
21
)
Home Energy Audit

Serving Windham, ME and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"Called immediately after my inquiry on Home Advisor, at my house the next day, and the project was done the following business day. On time and knowledgeable."
Kitchen Remodel
Kitchen Remodel
Celebrity Kitchen Design/Remodel
Bathroom Design / Remodel
High End Finishes

+19

Response time1 day
Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

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.

Typically, triple-pane windows made with krypton gas filling are the most energy efficient. A window’s frame, glass, design, and installation all affect its energy efficiency. These windows, in particular, are designed highly effectively in terms of their ability to insulate.

Dryers are designed to use as little electricity as possible, but power is still required to run the motor that turns the drum and to heat an element that pumps hot air. Eco devices are available and may lead to cost savings in the long term, but you should run the figures before committing to an eco-friendly device as they are often much more expensive to purchase.

Solar water heating systems are not one-size-fits-all. You'll likely work with a team of experts to get the job done—including solar panel installers, plumbers, and water heater installers. A specialist will help you decide if a passive or active system is best for your local weather, home layout, roof stability, and your budget.

Dehumidifiers typically use 300 to 700 watts of electricity per hour, whereas portable dehumidifiers use about 40 watts per hour. The exact amount of electricity your dehumidifier will generate depends on its capacity and energy efficiency. Generally, higher-capacity dehumidifiers generate more electricity than lower-capacity units, but they also usually have better energy efficiency over the long run.

The Windham, ME homeowners’ guide to energy efficiency auditing services

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