When you choose Evergreen Home Performance, you’re choosing a partner that has more BPI-certified employees, and who has helped more customers receive Efficiency Maine rebates, than any other contractor in the state!
We’re a trusted local guide who puts your goals first, which means we start by understanding what you want from your home – and we stay by your side until you reach it.

Why Mainers Trust Evergreen
Our process is built on doing what’s right for your home, delivering high-quality work at every step, and keeping communication clear, open, and personal. For nearly 20 years, we’ve helped more than 4,500 homeowners from Portland to Rockland and across Southern and Coastal Maine create better, healthier homes.

Our process is simple, clear, and built around your needs:
Step 1: Understanding Your Home – and Your Goals
Before we talk upgrades, we listen.
During your free one-hour consult, an Evergreen Energy Advisor will:
- Learn about your comfort, health, and energy concerns
- Walk through your home – from basement to attic
- Identify visible issues like air leaks, insulation gaps, and moisture problems
We focus on finding the root causes of your home’s problems, so that we can recommend long-lasting solutions.
If you decide to move forward, we’ll move right to a full home energy audit – a deep diagnostic evaluation using tools like blower door testing and thermal imaging. This gives us the data to build a custom, building-science-based plan for your home.
Step 2: Expert Upgrades, Designed for Lasting Results
Once we know what’s going on, we get to work fixing it—carefully, completely, and customized to your home.
Evergreen offers comprehensive solutions like:
- Insulation & Air Sealing: Sealing in comfort year-round with attic, wall, basement, and crawl space insulation.
- Basement Waterproofing: Protecting your home’s structure, air quality, and storage space from Maine’s heavy rains.
- Crawl Space Encapsulation: Keeping ground moisture, radon, and pests out—and healthier air in.


Step 3: Measuring Your Success
We don’t just say your home is better. We prove it.
After upgrades are completed, we’ll:
- Retest and verify the improvements with diagnostic tools
- Confirm your home meets Evergreen’s quality and safety standards
- Check in to hear about the real, measurable impact you’re experiencing in your home
We love hearing from customers about how their homes feel after Evergreen upgrades! And we always appreciate when our customers tell their friends, neighbors, and Google about what it’s like working with our team.
Making It Affordable: Rebates, Tax Credits, and Financing
Home improvements should feel good for your wallet, too. When you work with Evergreen, we can help you:
- Qualify for up to $8,000 in Efficiency Maine rebates
- Claim up to $1,200/year in federal insulation tax credits
- Finance the balance with payments as low as $50/month
We’ll guide you through every rebate, tax credit, and financing option – handling the paperwork where possible and making it easy for you to take advantage of savings.
