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

I was very impressed by the professionalism of this company and the workers. Brian R. was very prompt in replying to my questions; the crew was meticulous in all parts of the work and attentive to the safety aspects concerning Covid; and Brian was extremely thorough in the final inspection. My attic is now snug and warm and I've noticed that the second floor is warmer as well.

Julia S.

Rockland

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

Professional, friendly and hard-working staff. The product/approach they use for insulation is top notch. We felt the difference immediately, both from added warmth and eliminating drafts. The team and management were easily available to answer our questions or coordinate meeting times. Highly recommended.

Kevin J.

Yarmouth

I would recommend Evergreen wholeheartedly because of their professionalism, their follow through, and thoughtful project planning.

Jennifer A

Very Satisfied with the work performed by Evergreen. Professional employees, high quality work done in a timely manner. My sales rep was Justin, and he was phenomenal During the initial walk around my house, he gave me great ideas for how to improve the efficiency of our home. We will consult with Evergreen for our future home projects.

Adam G.

Westbrook

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

I used to spend winters in the bathtub because my house was so cold. This was my first winter roaming around my whole house comfortably. This even led me to decorate a little. My heating oil usage has been reduced by over a quarter: I rarely have to boost the thermostat because the temp stays at a constant. The Efficiency Maine rebates, together with the energy savings, make it affordable for me to pay for the loan I took out to finance the project. I do not worry about my pipes freezing.

Claire Helene Bevan

Camden

The Evergreen Team did a fabulous job, well exceeding our expectations, In just over a week they transformed our very drafty, noisy 213 year old house into a snug, draft-free, quiet haven with warm floors! The team was prompt, did everything they said they'd do and more. We are thrilled!

Trudy M.

Bridgton

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

I was extremely pleased with the professionalism and quality of service that I received from the Evergreen team. I met Richard to discuss options for insulation. I knew immediately that I wanted to do business with them because he did not try to over-sell extra services that I did not need. Dave was the project manager. He was not only kind, but very respectful of my home. I would highly recommend this company.

Darlyann M

Bath

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

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

We absolutely loved our experience with Evergreen. The team was incredibly kind, professional and great to work with. We're very impressed with the quality of work of the Evergreen team and how easy they made everything! Our house had barely any insulation ahead of this project and the results are amazing. Insulating the attic, walls and basement with Evergreen allowed us to tear a 50-year-old furnace, ductwork and oil tank out of the basement and now heat the home with new heat pumps. Evergreen also added 100 sq ft of clean, new storage space to the attic!

Nick S.

South Portland

I have always been impressed by the high level of service, quality of work, and excellent follow-through provided by Evergreen Home Performance in the three projects that they completed at the Wells Reserve at Laudholm over the past several years.

Paul D.

Wells

I never leave reviews, but had a great experience with Evergreen and wanted to spread the word! In short, we worked with them to insulate our roof this winter and have noticed surprising immediate results. The constant ice dams I have wrestled with are completely gone, and the home is noticeably more comfortable. It's a little too early to tell if our oil bill is going to reduce, but I imagine we will see an impact there as well.

Joel W.

Portland

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