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!
Evergreen Home Performance Team Photo On Staircase Of Porch Of House

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

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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

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

Greetings one and all! I am writing to express my gratitude to all involved in my insulation project.  From start to finish, I appreciate the universal theme which was maintained by each and every one of you, to ensure that my home was insulated and protected from freezing pipes as if it was your home. Andrea, thanks for helping me navigate my way to the project. Nate, thanks for the thorough initial assessment and the time you took to explain this project to me, step by step. Brian, thanks for setting up my project - so happy

Michele

I made the mistake of NOT hiring this company last year when I bought and renovated my home. I have brought them in now and what a difference. This group knows what they are doing. They take a complete look at everything and believe they can make your home more energy efficient. They are very professional in the way they approach problems and solutions. And they find ways to save me money. Don't bother with anyone else. Bring Evergreen in before you do anything. Let them assess your issues and give you the right solutions.

Shaw

Owls Head

We had Evergreen Home Performance of Rockland come in to make our home more energy efficient, and what a TOP notch crew. Brian and his crew did an amazing job from start to finish. Very knowledgeable and professional. We would Definitely highly recommend this crew to anyone who is looking for energy efficiency in their home with a company that truly is an expert and knows how to do a quality job and truly cares about their customer.

Melissa S.

Owls Head

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 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

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. They take care of your home and are trustworthy, and on top of all that friendly! I highly recommend you call them!

Garreth C Debiegun

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

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. His proposal described the scope of work in detail, and he explained what we could expect the proposed work to accomplish. Our proposal was forthcoming within a couple of days, and Justin was available to discuss it and answer questions.

Adrienne Harkavy

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

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.  We were amazed at the level of efficiency and everyday they made sure to protect our floors, carpets, and furniture. We had daily discussions with Dave about progress and what was being done and where they were at in the project.

Carol Fink

The Evergreen crew who installed insulation in my attic were fantastic! They were very professional, worked exceedingly hard, and they did an excellent job. They were very pleasant and friendly to be around. They cleaned up beautifully after each work day, and left my home in great shape on when they walked out the door for the last time. I can't believe they were able to accomplish all that they did with heat soaring into the 80s and 90s. It was pretty unbearable up there! They have my highest praise and my gratitude.

Cynthia F.

South Portland

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

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

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Portland Buy Local
Efficiency Maine
EPA Lead-Safe Certified
Building Performance Association
BPI Certified
Evergreen Home Performance logo white

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

315 Main Street, Ste. 205,
Rockland, ME 04841

207-594-2244

info@evergreenyourhome.com