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, tax credits and 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 initially contacted Evergreen through Efficiency Maine for an energy audit, which was conducted promptly and professionally by Justin McEdward, one of their Energy Advisors who is BPI-certified. After a thorough inspection of our newly purchased home, Justin explained in great detail what we needed and did not need. It was agreed that Evergreen would remove all of the existing attic insulation, which was not adequate, and replace it with blown in cellulose, to a rating of R-60.

Thomas W.

Scarborough

Evergreen is a terrific company to deal with. Polite and efficient crews, meeting deadlines and major reduction in our heat bills. They corrected a lot of issues we suffered from doing work with a shoddy building contractor. We would recommend them to anyone.

Mary Carey

Evergreen completed the work at my home thoroughly and professionally. An inspector from Efficiency Maine came to inspect afterwards and described it as "state of the art" and "outstanding". The crew was very pleasant and considerate during the project. Their cleanup each day was perfect. Communications with the office were easy and reliable. I am very satisfied.

Catherine H.

South Portland

Evergreen has insulated two homes that we've owned now and both times we experienced exceptional service and craftsmanship. Our rep, Justin, went above and beyond answering questions and the installation team was attentive to every detail, including pulling out old poorly installed insulation and redoing a bathroom fan that wasn't up to current code. They also left the place spotless every day! Our home is already so much warmer this fall and we are looking forward to using less oil this winter.

Eva G.

Falmouth

Evergreen came out 2 years ago to do an assessment and insulate our roof. This year we had them come back and do the basement as well. They are hands-down the best crew we've ever hired to work on our house. They are experts at what they do, and super meticulous in their work. After working in our house for a week with blown insulation, there was no trace they were ever here. We've seen a huge decrease in our energy bills while at the same time the house has become way more comfortable. Can't recommend them enough.

RC Lations II

Portland

Evergreen listened and produced a thoughtful evaluation, proposal and comprehensive plan for our attic and basement. They exhibited excellent workmanship, teamwork, and came back as planned after the completion of the job to test the outcomes. Their overall performance as insulation and home improvement contractors is truly outstanding and we highly recommend them.

Susan S.

Saco

The crew members from Evergreen Home Performance each made sure to greet us every day, while maintaining their distance in this time of the pandemic. Their work took a total of nine days, spread over three weeks. Even though they were working in multiple rooms of our house, as well as the basement and attic, they were unobtrusive and always cleaned up after themselves every day. The on-sight manager kept us informed of their daily schedule so we'd know which parts of the house they'd be working on.

Bob & Sue

Whitefield

Highly recommended. Our heating usage is now less than half what it was before we had our roof insulated. Evergreen was knowledgeable, friendly, and left no trace they were ever in our house. Not only is our heating bill much lower now, but our home is generally more comfortable year-round with less temperature fluctuations. Money well spent.

RC Lations

I would recommend Evergreen wholeheartedly because of their professionalism, their follow through, and thoughtful project planning.

Jennifer A

I never leave reviews, but had a great experience with Evergreen and wanted to spread the word! In short, we worked with them to insulate our roof this winter and have noticed surprising immediate results. The constant ice dams I have wrestled with are completely gone, and the home is noticeably more comfortable. It's a little too early to tell if our oil bill is going to reduce, but I imagine we will see an impact there as well.

Joel W.

Portland

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

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

Very Satisfied with the work performed by Evergreen. Professional employees, high quality work done in a timely manner. My sales rep was Justin, and he was phenomenal During the initial walk around my house, he gave me great ideas for how to improve the efficiency of our home. We will consult with Evergreen for our future home projects.

Adam G.

Westbrook

We are so pleased with the work the team from Evergreen Home Performance did in our home. The project included encapsulation of our basement with a reinforced vapor barrier, installation of a sump pump, spray foam insulation on the walls and insulation of the heating duct work. Everyone at Evergreen was friendly and professional. The project was completed on time and in budget. Our home is much cozier and warmer since the project was completed.

Linda Metzger

I cannot say enough great things about working with Evergreen Home Performance. Everything including the initial consultation, the fabulous work crew, the office support and the final resolution was handled in a caring and professional manner. My only regret is that I did not know about them earlier. I enthusiastically recommend Evergreen to anyone with concerns about home energy use.

Darlene R

Bath

Portland Buy Local
Efficiency Maine
EPA Lead-Safe Certified
Building Performance Association
BPI Certified