• side of house in spring time
    Ask us about all the financing & rebate offers that may be available to you
    Financing options for projects up to $35,000!
  • spring home blue
    Up to $3,500 Weatherization Rebates From Efficiency Maine
    30% of project cost up to $1,000 per zone, plus $500 for assessment & air sealing!
  • careers
    Join Our Team
    Ready to jump start your career? Contact us today to learn about the exciting opportunities waiting for you!
  • front door of home summertime
    Beautiful, Efficient Windows & Doors
    Learn more about our selection.

Improve your home's comfort, efficiency and durability the smart way
—with Evergreen Home Performance!

(207) 594-2244

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Dear Visitor,

As we all work together to contain the spread of COVID-19, the health of our customers, employees, and community is paramount.
We have adapted our sales and installation practices to maximize your safety and our employees’ safety and look forward to working with you!

Customers, please note that our Company COVID-19 safety policy requires our employees to practice physical distancing and to wear face coverings whenever they are within 6’ of another person. For their safety, we ask that you do the same whenever Evergreen is at your home.

Thank you for being safe and taking steps to protect yourselves, your family, and your community.

Welcome to Evergreen Home Performance

At Evergreen Home Performance our goal is to help Maine people increase the comfort of their home and reduce their impact on the environment. We are dedicated to helping Maine address the climate crisis and evolving weatherization needs of our homes by providing the best home performance services throughout Coastal Maine.

Using expert energy audit diagnostics, we can provide you and your family with the insights you need about how your home is performing. From upgrading your insulation, encapsulating your basement, or replacing your windows and doors, Evergreen Home Performance has the tools you need to live more comfortably and “energy wise” in your Maine home and save money on your utility bills.

Speak with us today to set up your Free Energy Consult

Home Performance For Your Maine Home: Insulation, Energy Audits, Marvin® Windows

What our clients are saying about us

  • Loriel Van Dusen

    Evergreen did everything they said they would and more. I actually don't mind going into the basement now since they sealed it. The air quality in the house is noticeably better and it's warmer in the winter. We can even store clothing down there where before, whatever was in there would mildew... Read More

    - Loriel Van Dusen
  • Thanks Evergreen Home Performance for helping to make our home more efficient. Many thanks as well to Bryan for the initial walk through and recommendations to make our home more efficient and to Dave, Roland, and Jacob for a job that was done professionally and courteous.... Read More

    - Carol Fink
  • Great company. Very professional and thorough. They take the time to explain everything and offer options to fit your budget. Wonderful experience from start to finish.

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

    - Jennifer A
  • 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
  • The Evergreen team was amazing from initial assessment and planning to the crew that came to complete the work. Our basement encapsulation is the best money we've spent on our house by far. The work was thorough and high quality. And what a wonderful group of people to work with.... Read More

    - Martha Bracy
  • 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.... Read More

    - Ryan Adams
  • Very easy process, start to finish.  Friendly, professional, and really know their stuff.  They made some improvements to our condo and we were very happy with how it played out.  Would definitely recommend them.

    - Clayton Eames
  • 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.

    - Linda Metzger
  • The Evergreen crew from initial inception to installation were professional, on time, and left our place spotless. The end result was exceptional.

    - John Brown
  • I had gotten estimates from several other companies, but Evergreen was in another league entirely with their professionalism. If you want the job done correctly, I couldn't recommend this company enough.

    - Rayna Mayo
  • In the final stages of selling our home, and with a closing date set, an inspection came across an unanticipated issue in our attic. We quickly called in contractors, but nobody was able to identify the source of the problem. Then we thought of Evergreen.

    - Robin McIntosh
  • I used to spend winters in the bathtub because my house was so cold. This was my first winter roaming around my whole house comfortably. This even led me to decorate a little.

    - Claire Helene Bevan
  • 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.

    - RC Lations
  • Evergreen is a highly professional company from start to finish. They went over all of our options, costs and rebates thoroughly before even beginning the job. Once the job began, they worked in a timely, neat, thorough, friendly and thoroughly professional manner.

    - Andréa C. de Almeida
  • We had a fantastic experience working with Evergreen to insulate our roof this winter.

    - Joel Wentz
  • Awesome company. It was a few years ago that they did the audit and then we commissioned them to do the work. We subsequently sold our house and moved to South Africa, but their level of service and expertise will live on.

    - Odette Brown
  • Evergreen has just completed Phase 2 of 2 at my home. They are professional, hard-working and courteous. They communicate well..no surprises. They've gone above and beyond to make my home comfortable and were very respectful of my home.
    I recommend them unequivocally!!!

    - David Henry Feldman
  • From beginning to end – that is from the moment Justin McEdward stepped into our home to assess our energy conservation needs until the crew left – the Evergreen Home Performance process went absolutely smoothly. Justin made a thorough inspection and took pictures with an infrared camera.

    - Adrienne Harkavy
  • We just finished a large project of air sealing and reinsulating our 1890s basement and attic which had been completely renovated 8 years ago but still felt cold and lacked proper energy assessment and corrections.

    - Emily Gallant
  • First we have Evergreen do a BIG project worth about $20K (windows, basement, insulate & rebuild an entire wall, a door, attics, and air sealing). They were so great we had them come back later when we decided we did want to do our other door. They are professional and do great work.

    - Garreth C Debiegun
  • A thorough inspection of our (older) house and its energy needs. Competent and personable work crew.

    - Jacob Watson
  • 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
  • My husband and I bought a home on the water in Owls Head and decided to make the investment in Evergreen's recommendations for insulation. Brian Robinson spent 3 hours examining every nook and cranny before he made practical suggestions and explained them thoroughly to us.

    - Marie McNeely
  • 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
  • "Working with Evergreen from start to finish was a great experience." See what our customers have to say about their experience with Evergreen Home Performance. 

    - Jeff L.


view down the stairs into an older unfinished basement
Has a wet basement become a recurring issue in your home that you just can’t seem to solve? You’re not alone—damp and musty basements are common problems for Maine homeowners. But letting moisture... Read more

Case Studies

If you own a historic home, you understand how difficult it can be to optimize indoor comfort while also preserving the structure’s timeless... Read More