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.

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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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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. I highly recommend Evergreen!

Martha Bracy

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

Thorough, smart, informative, integrated, and communicative -- that's how my experience was with Evergreen even with the covid interruption midstream. The team picked up where they left off, insulated basement and air sealed attic and knee wall in 100' temps under the eaves! This business group was a pleasure to work with.

Karen W.

Gray

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. My heating oil usage has been reduced by over a quarter: I rarely have to boost the thermostat because the temp stays at a constant. The Efficiency Maine rebates, together with the energy savings, make it affordable for me to pay for the loan I took out to finance the project. I do not worry about my pipes freezing.

Claire Helene Bevan

Camden

Update 12/2018: Evergreen has completed Phase II of my house (insulating and installing air/moisture barrier on exterior walls, replacing old windows) and now that heating season is upon us, the difference is astonishing. The house is tight as a drum and so easy to keep warm. Worth every penny. Thank you all! Working with Evergreen was a positive experience from start (no charge energy audit) to finish (a MUCH more comfortable home). Brian Robinson spent a lot of time with me on the audit, explaining clearly what he was finding in my ca.

Rebekah W.

Rockport

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

Jennifer A

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

John Brown

Working with Brian and with Nate and the rest of the crew was a pleasure. They made everything very easy and understandable. This was a major renovation and they were always at the ready with a lot of information. We had an extensive renovation on the basement which was a dirt basement and it came out beautifully. We can already tell from all of the insulation work what a difference it's made in sound and temperature. Brian worked with me on the rebates that are available when you do this kind of work. I would highly recommend this company to…

Valerie L.

Rockland

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 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

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

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

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

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

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

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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