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

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

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

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

We had Evergreen come out to our tiny old (100+ year old) house to see what they would recommend for decreasing our carbon footprint, saving money, and increasing our comfort in the cold season. Richard and Bryan were great to work with, patiently answering our many questions and walking us through multiple options. We could only afford to tackle a few areas this year; we ended up replacing some windows and having them weatherize the entire house.

Alan M.

Falmouth

I had gotten estimates from several other companies, but Evergreen was in another league entirely with their professionalism. If you want the job done correctly, I couldn't recommend this company enough.

Rayna Mayo

Freeport

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

Evergreen completed the work at my home thoroughly and professionally. An inspector from Efficiency Maine came to inspect afterwards and described it as "state of the art" and "outstanding". The crew was very pleasant and considerate during the project. Their cleanup each day was perfect. Communications with the office were easy and reliable. I am very satisfied.

Catherine H.

South Portland

My experience with Evergreen was excellent. From their thorough and thoughtful initial consultation to their detailed post-work visit, the team was professional, knowledgeable, and responsive. Their workmanship was top notch. Our home is now much warmer and more efficient. I highly recommend their services!

Douglas R.

Edgecomb

I waited a year to write this review. Evergreen finished our job late last winter. Terrific results!!! we've gone from 12-day propane deliveries to 30+ day propane deliveries. The house is noticeably warmer. The Evergreen crew was/is professional, prompt, thorough, scientific, gracious and immaculate with respect to keeping our house clean. Money well spent.

John E.

Boothbay

My husband and I bought a home on the water in Owls Head and decided to make the investment in Evergreen's recommendations for insulation. Brian Robinson spent 3 hours examining every nook and cranny before he made practical suggestions and explained them thoroughly to us.

Marie McNeely

Owls Head

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 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

We just finished a large project air sealing and reinsulating our 1890s basement and attic. It had been completely renovated 8 years ago, but still felt cold, and lacked proper energy assessment and corrections. We met with Justin in December and were very impressed with his knowledge, professionalism and communication skills and knew Evergreen was who we wanted to work with. Dave was our on hands project manager and was excellent. The office staff has been quick to respond and helpful as well when needed.

E Gallant

Kennebunk

We couldn't be more pleased with the easy, professional, high-value service from Evergreen. Having purchased an older home that had been in our family for generations, we needed multiple upgrades, including insulation throughout. Evergreen insulated our attic with blown-in cellulose, built a new, super-insulated attic hatch, sealed off the old one (which was just a piece of plywood in a closet ceiling), and also talked us through our best options to upgrade our heating system given the plans we have to add onto the house.

Tom G.

South Thomaston

Really great experience from start to finish with Evergreen. They helped us prioritize what needed to be completed first, and has made a significant difference in our hearing costs already. Plus they were really friendly and considerate to work with!

Amy W.

Kennebunk

Portland Buy Local
Efficiency Maine
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Building Performance Association
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