Yes, Your Maine Home’s Crawl Space Can Be Protected Against Moisture Too!
Crawl spaces are common in Maine homes, which means so are crawl space issues.
Exposed soil, air leaks, and poor insulation in a crawl space can introduce moisture, mold, radon, pests, and energy waste into the rest of your home. And if your house has both a basement and a crawl space, these issues can overlap.
At Evergreen Home Performance, we apply the same building science-backed techniques we use in basement waterproofing projects to seal, insulate, and protect crawl spaces—helping you create a healthier, drier, and more energy-efficient home from the ground up.
What Is Crawl Space Encapsulation?
Encapsulation is the process of turning a damp, vented crawl space into a sealed, protected zone that keeps moisture and contaminants out of your living space.
A typical encapsulation project includes:
- Insulation & Air Sealing: We seal cracks, rim joists, and penetrations to stop airflow and outside moisture from sneaking in. Rigid foam or spray foam insulation is then applied to the crawl space walls to better control temperature and humidity.
- Vapor Barrier Installation: Our crawl space vapor barrier installers seal the entire floor and walls with a thick, durable barrier that locks out ground moisture.
- Dehumidifier Installation: To manage ongoing humidity and improve indoor air quality, we often install a basement- or crawl space-specific dehumidifier.
- French Drain Installation & Sump Pump Installation: If bulk water management is needed, drainage systems and sump pumps can be added!
Each encapsulation job is tailored to your home’s unique structure, challenges, and goals.
Why Crawl Space Encapsulation Matters in Maine
Maine’s climate brings moisture, and in older homes with shallow foundations or poor drainage, it doesn’t take much for that moisture to find its way in.
Common signs of crawl space trouble include:
- Cold floors above the crawl space
- Musty odors in your home—or directly from a musty crawl space
- Elevated radon levels
- Mold or wood rot in joists and subfloors
- High humidity and poor air quality
With crawl space encapsulation, you can:
- Improve whole-home comfort and efficiency
- Reduce the risk of radon, mold, and pests
- Protect your structure and indoor air quality
- Maximize the effectiveness of insulation and HVAC systems (especially if you have ductwork in your crawlspace)
Protecting Your Home from Moisture—and Radon
Radon is a real concern in many Maine homes, especially in crawl spaces with exposed soil. And unfortunately, some companies offering crawl space services may unwittingly make radon problems worse by letting more radon enter through the same areas where moisture and water are meant to escape.
At Evergreen, we do things differently.
We always consider the impact of our work on indoor air quality and radon risk and have additional solutions for mitigation when needed, including specialized depressurization systems. If your home doesn’t have a radon mitigation system—or hasn’t been tested for radon recently—we’ll even supply you with a free radon testing kit during your consult!
Save Thousands with Rebates & Financing for Crawl Space Work
Crawl space encapsulation doesn’t just protect your home—it can pay off in real savings, too, as the result of rebates, tax credits, and financing. Because the process includes insulation and air sealing, homeowners can qualify for:
- Up to $8,000 in Efficiency Maine rebates
- 30% federal tax credit (up to $1,200/year for qualifying costs)
Rebates and tax credits would only cover any insulation work included in your encapsulation project. But if you need help covering the rest, Evergreen can connect you with financing through Efficiency Maine or NEIF, with monthly payments as low as $50.
We’ll walk you through what’s eligible, handle the rebate paperwork for you, and help you make the most of the incentives available.
One Home. One Plan. One Trusted Partner.
Whether your home has a crawl space, a basement—or both—Evergreen can help you create a comprehensive waterproofing and energy upgrade strategy. We’ve helped thousands of Maine homeowners protect their homes from below the floorboards.
