Expert Basement Waterproofing Services for Maine Homes
Damp floors. Musty smells. Mold. These common basement issues aren’t just unpleasant—they play large roles in the overall health and comfort of your entire home.
When your basement is dry, sealed, and healthy, your entire home feels more comfortable, cleaner, and more energy-efficient, and you have peace of mind.
At Evergreen, we’ve been helping homeowners throughout Southern and Coastal Maine solve basement moisture problems for nearly two decades. Whether it’s a basement or a crawlspace, we provide customized waterproofing solutions that fit your home’s specific needs, including:
Protecting your home from water damage and mold
Improving indoor air quality for a healthier home
Reducing humidity and lowering energy costs
Creating a drier, usable space for storage
Adding long-lasting value to your home
Enjoying peace of mind, even during Maine’s heaviest storms
Drain the Water Out Right, Radon Tight!
Radon is a serious concern in many Maine homes, and unfortunately some basement waterproofing companies are doing work that actually makes the problem worse.
At Evergreen, we take a different approach. Every basement project we do is designed to make your home not just drier, but healthier. We partner with the local Maine company Air & Water Quality, and if you don't have a mitigation system already and haven't had a recent test, we offer a free radon test kit with every basement consult.
Radon Mitigation
In the wrong hands, waterproofing can increase indoor radon level. Evergreen ensures the same holes letting water out aren’t also letting radon in!
Sump Pumps
Keep your basement dry with sump pumps that work even when the power goes out.
French Drains
Our advanced fast draining Hydraway systems are the clog-free solution for Maine’s clay and silty soils.
Dehumidification & Ventilation
Control moisture and improve air quality with whole-home or basement-specific dehumidifier and ventilation systems.
Mold Prevention Solutions
Getting to the root cause of moisture and mold growth protects your health and your home.
Crawl Space Encapsulation
Many Maine homes have crawl spaces and we can help you fix them too, using similar methods and tools.
Signs You Need Basement Waterproofing Services
Standing Water
Damp Air
Mold
High Radon Levels
Wood Rot
Flood Damage or Rust on Mechanical Equipment or Heating System
Musty Smells
High Energy Bills
Cold Floors
A Custom Approach for Every Basement
No two basements are the same. A basement in Portland might flood during every spring thaw. Another up in Rockland might just feel cold and damp year-round. That’s why Evergreen doesn’t offer one-size-fits-all fixes; we build tailored solutions using a combination of services working together to keep water out and comfort in, including:
Air Sealing and Insulation
Moisture often sneaks in through cracks and uninsulated surfaces. By sealing leaks and insulating the basement walls or rim joists, we boost energy efficiency and make your whole home more comfortable.
Basement Encapsulation/Vapor Barrier Installation
In homes with crawl spaces, moisture and mold often start below the floor. We can seal basement walls and floors with a heavy-duty vapor barrier that keeps ground moisture, pests, and unhealthy air out of your home for good.
Interior French Drain System
A drainage channel along the interior perimeter of your basement captures water and directs it to your sump pit.
Sump Pump Installation
When water collects, the sump pump moves it out fast. We install powerful pumps with backup systems so your basement stays dry even if the power goes out during a storm.
Ventilation and Dehumidification
Once moisture is controlled, we help you maintain a dry, healthy space. We install EPA-recommended exhaust fans and AprilAire® dehumidifiers to manage humidity levels and improve indoor air quality.
Save with Efficiency Maine Rebates, Financing, and Tax Credits
Waterproofing your basement is a smart investment and in some cases, it qualifies for financial incentives.
Insulation and air sealing upgrades that are part of your basement waterproofing project often qualify for Efficiency Maine rebates (up to $8,000) and federal tax credits (up to $1,200 per year).
Other work, like drainage systems, sump pumps, or dehumidifiers, typically does not qualify for these incentives.
We’ll walk you through exactly what’s eligible and help you maximize every dollar. And if you need help covering the rest, you can finance the balance through Efficiency Maine or NEIF, with payments as low as $50/month.
Your Trusted Maine Home Solutions Expert
We have more Building Performance Institute-certified professionals on our team than any other company in Maine.
We helped more homeowners receive Efficiency Maine rebates for insulation than any other contractor in 2024!