Dehumidifiers

Dehumidifiers

A Drier Basement — and Peace of Mind That Lasts

Even after drains, sump pumps, and vapor barriers are in place, humidity can still sneak in—and that can mean mold, musty smells, and moisture problems that linger.

That’s where professionally installed basement dehumidifiers come in. At Evergreen, we include dehumidification as part of our larger basement waterproofing systems—giving you lasting peace of mind and a space that stays dry, clean, and healthy long after the rain stops.

Evergreen Home Performance team inspecting an old, musty basement
Sump Pump Encapsulated Basement

Even a Waterproofed Basement Needs Help Managing Humidity

Basement waterproofing and crawlspace encapsulation can address or mitigate the biggest sources of indoor water and moisture issues, but you’ll never completely be rid of humidity in Maine’s climate.

That’s where ongoing active control measures can help.

By pairing a dehumidifier with your sump pump, vapor barrier, or drainage system, we help you create a basement or crawlspace that stays dry, stable, and healthy—even when the weather changes.

Why We Install AprilAire Dehumidifiers

Portable dehumidifier units you can buy at big-box stores might help in a pinch—but they’re no match for the AprilAire professional-grade models we use:

  • High-capacity performance removes up to 100 pints of moisture per day
  • Designed to cover entire basements or crawlspaces
  • Can be paired with ducting for extended coverage
  • Improves air quality by reducing mold, allergens, and airborne viruses
  • Made in the USA and backed by a strong warranty
AprilAire Dehumidifier
Work vehicles in driveway of house

Keeping Your Basement—and Home—Healthy for the Long Haul

Basement moisture doesn’t just affect the basement. It impacts the air your family breathes, the comfort of the rooms above, and even the lifespan of your heating and cooling systems.

Dehumidifiers help:

  • Stabilize humidity and prevent mold
  • Protect finishes, furniture, and flooring
  • Improve air quality throughout your home
  • Ensure proper humidity levels are maintained after basement waterproofing upgrades

Ready to Make Sure Your Basement Stays Dry—for Good?

Humidity doesn’t always go away just because the water stops, as anyone who has spent an August in Maine knows. That’s why dehumidification is often part of the waterproofing and encapsulation strategies we design for your home—and why we recommend every Maine home has a dehumidifier to help with evaporation on open dirt floors in basements and crawlspaces, especially in summer!

During your free basement consult, we’ll assess humidity levels in your space and determine whether professional basement dehumidifier installation is the right fit for your Maine home.

Evergreen team walking through a house

Call 207-594-2244 or schedule your free consult online today.

Stay one step ahead of humidity issues with basement dehumidifier installation in Southern and Coastal Maine.

BOOK YOUR FREE CONSULT TODAY

Great company. Very professional and thorough. They take the time to explain everything and offer options to fit your budget. Wonderful experience from start to finish.

Bonnie Eustace

Evergreen has a professional and reliable team of people who do excellent work. If you want the best of the best in the area, select Evergreen to accomplish your insulation needs.

Mary E.

St. George

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

Evergreen came out 2 years ago to do an assessment and insulate our roof. This year we had them come back and do the basement as well. They are hands-down the best crew we've ever hired to work on our house. They are experts at what they do, and super meticulous in their work. After working in our house for a week with blown insulation, there was no trace they were ever here. We've seen a huge decrease in our energy bills while at the same time the house has become way more comfortable. Can't recommend them enough.

RC Lations II

Portland

Evergreen Home Performance shows its expertise from start to finish. Evergreen did three house projects in winter/spring/summer 2020 for me, attic insulation, crawl space under a porch insulation, and basement foam/vapor barrier. From my initial discussion with Bryan, I understood the reasons for choosing different types of insulation, the associated costs, and time estimates. Evergreen scheduled in advance, came when they said they would, and the crews were highly professional in their work and demeanor.

Iris S.

Portland

We had a fantastic experience working with Evergreen to insulate our roof this winter. Everyone was extremely friendly throughout the process - the crew at our home worked hard, were approachable with questions, and the team leader even showed me around the project to point out specific areas they were working to improve.

Joel Wentz

I am very pleased with my experience with Evergreen Home Performance. I met several times with Richard Burbank and he was very detailed in his explanations to all of my questions. He provided me with several options for improving the insulation to our home. The team of installers were very professional and respectful of our home. They did a great job of cleaning up every day after the days work and they were also very responsive to all my questions as well as we collaborated to get our home better insulated. It was a pleasure to work with Richard and…

Brian C.

Falmouth

Highly recommended. Our heating usage is now less than half what it was before we had our roof insulated. Evergreen was knowledgeable, friendly, and left no trace they were ever in our house. Not only is our heating bill much lower now, but our home is generally more comfortable year-round with less temperature fluctuations. Money well spent.

RC Lations

The folks at Evergreen did a great job fixing a rather major insulation problem in my house, which they helped identify with a great audit. When the work began, they were thorough, upbeat, and -- dare I say it -- efficient. I strongly recommend them.

Michael Williams

Evergreen is a terrific company to deal with. Polite and efficient crews, meeting deadlines and major reduction in our heat bills. They corrected a lot of issues we suffered from doing work with a shoddy building contractor. We would recommend them to anyone.

Mary Carey

Awesome company. It was a few years ago that they did the audit and then we commissioned them to do the work. We subsequently sold our house and moved to South Africa, but their level of service and expertise will live on.

Odette Brown

Evergreen came back this year to finish insulating our house. We have been remodeling and renovating an 1850s cape for several years. Their employees are very professional and pleasant to deal with. Over several years Brian Robinson has been able to schedule us in for several small areas that needed addressing and finally turning a room we used to close off in the winter into a comfortable usable space. We primarily heat with wood and since Evergreens great work our furnace has only come on ONCE this winter. Fantastic. Really satisfied customer in Thomaston.

Chris F.

Thomaston

We had Evergreen energy do blow-in cellulose. I was very happy with the result. They tested with blower-door before and after. House is now MUCH warmer. Also, in the time since when I've had to open walls for various access, I've been impressed with how they got the insulation packed in everywhere. I'd use them again.

Noah

Peaks Island

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

Evergreen has just completed Phase 2 of 2 at my home. They are professional, hard-working and courteous. They communicate well..no surprises. They've gone above and beyond to make my home comfortable and were very respectful of my home.I recommend them unequivocally!!!Many thanks to Brian, Brian, Rick, Eddie, Dawson and the rest of the Evergreen crew!!

David Henry Feldman

Portland Buy Local
Efficiency Maine
EPA Lead-Safe Certified
Building Performance Association
BPI Certified