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

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

Led by Brian Robinson, the Evergreen Home Performance team just completed an insulation refit at my home. It was truly a great experience from start to finish, a period of time that was a fraction of the time that I originally anticipated due to the team's unbelievable work habits and professional knowledge of their tasks. As impressive were the communication skills and friendliness of each and every member of the team.

Anne W.

Rockport

Evergreen did an amazing job insulating our historic home. Their professional staff worked hard to ensure the tough areas in the attic were covered, and clearly communicated their progress. We are seeing the results with our discounted heating bills. Thank you, Evergreen!

Melissa Knoll

Portland

Great job installing windows and insulation.

Bob S.

Rockland

We had Evergreen energy do blow-in cellulose. I was very happy with the result. They tested with blower-door before and after. House is now MUCH warmer. Also, in the time since when I've had to open walls for various access, I've been impressed with how they got the insulation packed in everywhere. I'd use them again.

Noah

Peaks Island

Nothing but good things to say. The guys that came and did the actual work were extremely nice and did a great job. The energy audit was thorough and I was presented with multiple improvement options, I was even given ideas for improvement that Evergreen didn't offer. I never felt like I was being "sold".

Ryan Adams

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

A thorough inspection of our (older) house and its energy needs. Competent and personable work crew.

Jacob Watson

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

Working with Evergreen was a dream! Professional, knowledgeable, and super clean work. Communication was fast and service impeccable. The bedroom floors in our 1960's split ranch will be warm with the new insulation between them and the garage. Bring on the snow! (not really, but sort of)

Jess Dee Proctor

Professional, friendly and hard-working staff. The product/approach they use for insulation is top notch. We felt the difference immediately, both from added warmth and eliminating drafts. The team and management were easily available to answer our questions or coordinate meeting times. Highly recommended.

Kevin J.

Yarmouth

The Evergreen Team did a fabulous job, well exceeding our expectations, In just over a week they transformed our very drafty, noisy 213 year old house into a snug, draft-free, quiet haven with warm floors! The team was prompt, did everything they said they'd do and more. We are thrilled!

Trudy M.

Bridgton

We absolutely loved our experience with Evergreen. The team was incredibly kind, professional and great to work with. We're very impressed with the quality of work of the Evergreen team and how easy they made everything! Our house had barely any insulation ahead of this project and the results are amazing. Insulating the attic, walls and basement with Evergreen allowed us to tear a 50-year-old furnace, ductwork and oil tank out of the basement and now heat the home with new heat pumps. Evergreen also added 100 sq ft of clean, new storage space to the attic!

Nick S.

South Portland

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

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

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