Energy Audit

Services in Southern & Coastal Maine

Energy Audit

Services in Southern & Coastal Maine

Ever wonder why your home still feels cold even when the heat is on? Or why your energy bills keep climbing?

As one of the leading energy audit companies in Maine, we can help you uncover hidden leaks, drafts, and insulation gaps, helping you create a more comfortable, healthy, and energy efficient home.

Using advanced tools like blower door testing and thermal imaging, we pinpoint areas of energy loss, moisture problems, and inefficiencies. Whether you’re dealing with ice dams, temperature swings, or musty basement odors, an energy audit will give you clear answers.

With the information from your Maine home energy audit, we’ll outline a pathway toward services that will help you:

  • Eliminate drafts & cold spots
  • Lower your energy bills
  • Prevent ice dams & moisture issues
  • Improve indoor air quality
  • Make your home better for the environment

Since 2006, Evergreen has performed energy audits on more than 15,000 Maine homes!

Your Step-by-Step Process to a Better Home

  1. Free Consultation
    • We visit your home to discuss your concerns, goals, and comfort issues.
    • Our experts assess whether your home is a good candidate for efficiency upgrades—and if so, we schedule a comprehensive energy audit.
  2. Energy Audit
    • We use high-tech tools like blower doors and thermal cameras to see what your eyes can’t—hidden leaks, insulation gaps, and drafts sucking the warmth right out of your home.
    • In about two hours, we’ll show you exactly where your home is losing energy and what you can do to fix it—no guesswork, just real solutions.
  3. Tailored Improvement Plan
    • When your audit is finished, we’ll review our findings and follow up with an audit report that includes our recommendations on how you can maximize comfort and energy savings.
    • Did you know you could get up to $8,000 in Efficiency Maine rebates for our services? Plus, 0% financing can make upgrades more affordable than ever. We’ll guide you through every step to help you maximize savings.
  4. Free Test-Out After Work is Completed
    • After your home upgrades are made, we’ll test again to confirm that all improvements meet our high standards and gather the data we need to process your Efficiency Maine rebate application.
    • You’ll feel the difference—fewer drafts, lower bills, and a home that stays comfortable year-round.
Using a thermal imaging device in a child's bedroom to look for cold spots and air leakage

After the energy audit and our interview with you is complete, we’ll provide a list of our recommendations for services including:

Insulation

Improve indoor comfort while lowering heating and cooling bills.

Learn More

Basement Waterproofing

Prevent moisture issues, mold growth, and energy waste.

Learn More

Maine’s Trusted Home Insulation Company Near You

BPI Certified professional logo for Evergreen Home Performance in Portland & Rockland, Maine

BPI

We have more Building Performance Institute-certified professionals on our team than any other company in Maine.

Efficiency Maine Residential Registered Vendor Logo

Efficiency Maine

We helped more homeowners receive Efficiency Maine rebates for insulation than any other contractor in 2024!

You deserve a better home—so let’s uncover hidden issues, fix what’s broken, and create the cozy, efficient space you’ve always wanted.

Schedule your free consult with Evergreen Home Performance today.

Is your home leaking energy? Let’s find out where.

BOOK YOUR FREE CONSULT TODAY

We had a fantastic experience working with Evergreen to insulate our roof this winter. Everyone was extremely friendly throughout the process - the crew at our home worked hard, were approachable with questions, and the team leader even showed me around the project to point out specific areas they were working to improve.

Joel Wentz

Great job installing windows and insulation.

Bob S.

Rockland

The folks at Evergreen did a great job fixing a rather major insulation problem in my house, which they helped identify with a great audit. When the work began, they were thorough, upbeat, and -- dare I say it -- efficient. I strongly recommend them.

Michael Williams

I waited a year to write this review. Evergreen finished our job late last winter. Terrific results!!! we've gone from 12-day propane deliveries to 30+ day propane deliveries. The house is noticeably warmer. The Evergreen crew was/is professional, prompt, thorough, scientific, gracious and immaculate with respect to keeping our house clean. Money well spent.

John E.

Boothbay

We just finished a large project air sealing and reinsulating our 1890s basement and attic. It had been completely renovated 8 years ago, but still felt cold, and lacked proper energy assessment and corrections. We met with Justin in December and were very impressed with his knowledge, professionalism and communication skills and knew Evergreen was who we wanted to work with. Dave was our on hands project manager and was excellent. The office staff has been quick to respond and helpful as well when needed.

E Gallant

Kennebunk

We are thrilled with the job Evergreen did to transform our 213 year old home into a warm, draft-free, cozy space. The entire team led by Bruce was prompt, courteous, knowledgeable, and hard working. If Evergreen could transform our home in this way, we are sure they would make a comparable difference in YOUR home!

Jonathan M.

Bridgton

Evergreen came back this year to finish insulating our house. We have been remodeling and renovating an 1850s cape for several years. Their employees are very professional and pleasant to deal with. Over several years Brian Robinson has been able to schedule us in for several small areas that needed addressing and finally turning a room we used to close off in the winter into a comfortable usable space. We primarily heat with wood and since Evergreens great work our furnace has only come on ONCE this winter. Fantastic. Really satisfied customer in Thomaston.

Chris F.

Thomaston

I have always been impressed by the high level of service, quality of work, and excellent follow-through provided by Evergreen Home Performance in the three projects that they completed at the Wells Reserve at Laudholm over the past several years.

Paul D.

Wells

My experience with Evergreen was excellent. From their thorough and thoughtful initial consultation to their detailed post-work visit, the team was professional, knowledgeable, and responsive. Their workmanship was top notch. Our home is now much warmer and more efficient. I highly recommend their services!

Douglas R.

Edgecomb

We needed basement encapsulation to stop moisture coming up into the house from our regularly flooding basement. We had mold growing on windowsills and furniture. All the staff were friendly, respectful of our home, and easy to work with. Humidity has gone from 70% down to 40% and mold has not grown back after two months. Very grateful.

Sarah C.

Belfast

Our house still the most efficient home we’ve ever lived in. And we have you folks to thank for that! A special howdy to Brian Robinson please!

Bruce O’Donal and Eva Butler

We had Evergreen redo the insulation in our roof. The team handling our project did a great job. They left the house spotless. We've already noticed the difference in how much better our house is retaining heat. I would definitely recommend and will use them for future projects.

Ffej C.

South Portland

Our basement was the eyesore of the house. I wanted to make improvements, but first needed to make structural, insulating and moisture mitigation improvements. Evergreen was professional and competent in taking on a complex project of not only encapsulation and insulation of basement and crawlspace, but completed needed improvements to the structural integrity of the wood floor platform above a crawlspace and brought in a concrete contractor to pour where there was once a rotting, tiered wood platform - replacing that area with a more functional and tight tiered concrete area.

Duane B.

East Boothbay

Evergreen removed and replaced the insulation in my attic. They did a great job!, Crew was excellent, and the whole thing went smoothly, and the attic was NOT easy to get into or work in, so kudos to some hard work done well!

Joel A.

Portland

They were highly recommended. I found them to be very knowledgeable and so helpful, with practical ideas. Despite my not living within their service area, they were generous with their knowledge, describing the usual solutions to correct leaks in my basement, and what the result is likely to be by following path A, B or C, and why. I was discouraged. Talking with Evergreen helped me see that my basement problems are far from insurmountable and really, fairly common in 100-year old homes. There are proven solutions.

Rosalind J

Damariscotta

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Efficiency Maine
EPA Lead-Safe Certified
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