About Us

Your comfort and efficiency experts

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Our Process

Our Process

What you can expect when you work with Evergreen.

Our Process

Our Team

Our Team

Meet the experts dedicated to improving your home.

Our Team

Service Area

Service Area

Learn more about the areas we serve in Southern and Coastal Maine.

Service Area

Since 2006, Evergreen Home Performance has helped Maine homeowners create healthier, more comfortable, and more energy-efficient homes through home energy audits, insulation, and basement waterproofing services. With offices in Portland and Rockland, we’ve improved thousands of homes using a science-based approach tailored to Maine’s unique climate and housing stock.

We know Maine homes—whether it’s a drafty Victorian, a mid-century Cape, or a newer build that still struggles with comfort issues. No matter your home’s age or design, we listen to you to understand your goals and craft solutions that make a real difference.

Beyond individual homes, we lead the way in helping Mainers access Efficiency Maine rebates and financing, making upgrades more affordable. In 2024, we once again completed more rebate-supported projects than any other contractor in the state.

From York to Belfast and across the Midcoast, our mission is simple: help homeowners create a home that is comfortable, efficient, and built to last.

  • 4,500+ homes improved in nearly 190 Maine towns and cities

  • 15,000+ energy audits conducted

  • Nearly 20 years in business

  • 25% of our team has been with Evergreen for 12+ years

Evergreen Home Performance Team Smiling At A House While Working

Our Values

At Evergreen, our values guide everything we do – how we work, how we lead, and how we serve homeowners like you.

  1. Do the Right Thing – We put people and the planet first, always choosing solutions that create healthier homes and a better future.
  2. Strive for Excellence – We set high standards, work hard, and continuously improve to deliver the best results for your home.
  3. Prioritize Relationships – We invest in our team, our customers, and our communities – listening, communicating openly, and treating everyone with respect.

Our goal is to earn your trust by being the partner you can count on to guide you toward a better home. But don’t just take our word for it – visit our testimonials page to hear from real Mainers about their experiences working with our team.

View Testimonials

Certificates and Accreditations

We hold ourselves to the highest standards. These credentials hold us accountable in our commitment to excellence and ensure you receive the best results possible for your home.

  • Efficiency Maine – Helping homeowners access rebates and incentives for energy upgrades.
  • Building Performance Association (BPA) – Recognized leaders in home performance and energy efficiency.
  • Building Performance Institute (BPI) – Evergreen has more BPI-certified employees than any other company in the state!
  • Environmental Protection Agency (EPA) – Our lead-safe certification is required for working in and improving homes built before 1978.
  • COVID-19 Protection Standards – Prioritizing health and safety in every project.
  • Maine Indoor Air Quality Council – Evergreen is a member of this non-profit organization committed to creating healthier homes and indoor environments.
  • Better Business Bureau – We are proud to be a BBB Accredited Business!

Start your journey to a more comfortable, efficient home – book your free consult today with Evergreen.

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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

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. Brian Robinson was on site the next morning and immediately identified the source (a faulty roofing job completed three years earlier which had effectively sealed up portions of the ridge vent and restricted air flow - not easily visible with a quick inspection).

Robin McIntosh

Camden

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

From start to finish, our experience was incredible. Justin was extremely helpful. The crew was fast, friendly, and efficient. And most importantly, our home is WAY warmer and our heating is less costly. I'd highly recommend evergreen to anyone looking to upgrade their home!

John S.

South Portland

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

Last week, my oil company asked if we were using some other kind of fuel because our usage was so much less than they had expected We are very happy with the results; the house is much more comfortable

Steve T.

St. George

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

I was extremely pleased with the professionalism and quality of service that I received from the Evergreen team. I met Richard to discuss options for insulation. I knew immediately that I wanted to do business with them because he did not try to over-sell extra services that I did not need. Dave was the project manager. He was not only kind, but very respectful of my home. I would highly recommend this company.

Darlyann M

Bath

We couldn't be more pleased with the easy, professional, high-value service from Evergreen. Having purchased an older home that had been in our family for generations, we needed multiple upgrades, including insulation throughout. Evergreen insulated our attic with blown-in cellulose, built a new, super-insulated attic hatch, sealed off the old one (which was just a piece of plywood in a closet ceiling), and also talked us through our best options to upgrade our heating system given the plans we have to add onto the house.

Tom G.

South Thomaston

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 is the "go-to" company for improving the efficiency of your home. There are others to choose from but none so effective, honest, and capable as Evergreen. They did a great quantity of dense packing cellulose to improve our home (both for energy efficiency and for sound insulation) and it was totally successful. They are on-time, helpful, and caring. They clean up to a level that can't be over emphasized. This was the second time we employed them and we'd use them again if the opportunity came. You'll not be sorry to select Evergreen.

Dirk F.

Belfast

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

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. Even the spider population declined! I used to vacuum so many of them from the corners of the ceilings in the house. Not any more!

Loriel Van Dusen

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

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

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

190 Riverside St, #2A,
Portland, ME 04103

315 Main Street, #205,
Rockland, ME 04841

207-358-3706

info@evergreenyourhome.com