The Home Performance Upgrade You Will Notice Most? Basement Insulation.

Back to Blog

As a home performance contractor, we talk to many homeowners throughout Southern Maine and the Midcoast who want to know which home performance upgrades will make the biggest difference. With each home presenting its own challenges, and with so many upgrades to choose from, it can feel overwhelming to comb through the retrofits that will increase your home comfort and energy efficiency the most. But we hear it time and time again: Insulation for the basement and basement encapsulation makes the biggest difference for Maine homes! Here’s why.

Why Basement Insulation Works for Maine Homes

By trusting a local basement insulation contractor to insulate the area under your house, you are turning your basement into a conditioned space. The role of insulation is to prevent the transfer of heat between your home’s exterior surfaces —  like the foundation — and the outdoors. Once air sealed and insulated, your basement will no longer be at the whim of Maine’s sub-freezing winter temperatures and stuffy, humid summers. The more stable the temperatures are in the basement, the more stable the temperatures will be throughout your home! Some of the benefits of basement insulation include:

  • No more cold floors in the winter
  • Greater indoor temperature stability
  • Reduced “stack effect”
  • Lower heating & cooling costs
  • Fewer indoor drafts

The Best Way To Insulate a Basement

Some insulation contractors may tell you that insulating the basement ceiling is all you’ll need to do to insulate your basement — false! Insulating the ceiling may keep your floors less cold, but it will not do much for the actual temperature of your home, and could lead to frozen water pipes and cold heating system distribution networks (air ducts or hot water piping). We find that the best way is to insulate the basement walls. Why, you ask? Your basement walls are where your home is most vulnerable to the unpredictable New England weather, including moisture intrusion, cold air drafts, and the conduction of cold temperatures through your foundation’s stone, brick, or concrete wall surfaces.

By insulating the walls of your basement, you are preventing those unwanted temperatures from entering your living space in the first place, instead of just preventing them from reaching the floors of your home.

Spray Foam vs Rigid Foam Insulation? It Depends.

The second aspect of properly insulating a basement is sealing up any air leaks. For older homes with stone or brick foundations,  utilizing an expanding spray foam insulation product, air seals and insulates all at once. And for newer homes with uniform concrete basement walls,  taped and sealed rigid foam panels can be a great solution. These treatments are particularly beneficial for Midcoast Maine homes that experience basement air moisture throughout all four seasons. The less moisture in your home, the lower your risk of mold growth.

Read how properly insulating the basement of a 19th Century Deering Center home helped reduce annual heating and hot water bills by $3,300, and how Evergreen helped this family save with Efficiency Maine Rebates!

READ THE FULL STORY

Evergreen: Your Maine Basement Encapsulation and Insulation Experts

If you’ve got questions about your insulation needs — whether it’s an environmentally friendly insulation for an unfinished basement, insulation for sills in your basement, insulation for the basement floor, or whether or not you should insulate your exposed pipes, we are here to make sure you get the answers you need. By scheduling an energy audit with Evergreen Home Performance, we can help you reduce your heat loss in the winter and stop the summer winds from blowing into your living space. From Belfast down to Cape Elizabeth, trust Evergreen with all of your home performance needs!

Wondering what the best home performance upgrade is for your Maine home? Ask the experts! Go Evergreen today, by calling 207-594-2244 or you can get in touch here.

Wondering why your floors have been so cold this winter?

The answer is in your basement. 207-594-2244

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

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

Thorough, smart, informative, integrated, and communicative -- that's how my experience was with Evergreen even with the covid interruption midstream. The team picked up where they left off, insulated basement and air sealed attic and knee wall in 100' temps under the eaves! This business group was a pleasure to work with.

Karen W.

Gray

We needed basement encapsulation to stop moisture coming up into the house from our regularly flooding basement. We had mold growing on windowsills and furniture. All the staff were friendly, respectful of our home, and easy to work with. Humidity has gone from 70% down to 40% and mold has not grown back after two months. Very grateful.

Sarah C.

Belfast

Evergreen did a fantastic job replacing 28 windows in our house. They were friendly, courteous, and very detail oriented. Brian did a great job planning, estimating and executing the project. Our energy use has dropped significantly since the work was done.

Alex B.

Kittery

Evergreen is the "go-to" company for improving the efficiency of your home. There are others to choose from but none so effective, honest, and capable as Evergreen. They did a great quantity of dense packing cellulose to improve our home (both for energy efficiency and for sound insulation) and it was totally successful. They are on-time, helpful, and caring. They clean up to a level that can't be over emphasized. This was the second time we employed them and we'd use them again if the opportunity came. You'll not be sorry to select Evergreen.

Dirk F.

Belfast

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

The Evergreen crew who installed insulation in my attic were fantastic! They were very professional, worked exceedingly hard, and they did an excellent job. They were very pleasant and friendly to be around. They cleaned up beautifully after each work day, and left my home in great shape on when they walked out the door for the last time. I can't believe they were able to accomplish all that they did with heat soaring into the 80s and 90s. It was pretty unbearable up there! They have my highest praise and my gratitude.

Cynthia F.

South Portland

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 are so pleased with the work the team from Evergreen Home Performance did in our home. The project included encapsulation of our basement with a reinforced vapor barrier, installation of a sump pump, spray foam insulation on the walls and insulation of the heating duct work. Everyone at Evergreen was friendly and professional. The project was completed on time and in budget. Our home is much cozier and warmer since the project was completed.

Linda Metzger

Evergreen did a fantastic job insulating our 1930's home. The onsite team was professional, clean, and really just a joy to interact with throughout the process. A blower test at the end showed a significant decrease in air leakage. I highly recommend Evergreen.

Kristen H.

South Portland

Nothing but good things to say. The guys that came and did the actual work were extremely nice and did a great job. The energy audit was thorough and I was presented with multiple improvement options, I was even given ideas for improvement that Evergreen didn't offer. I never felt like I was being "sold".

Ryan Adams

From beginning to end – that is from the moment Justin McEdward stepped into our home to assess our energy conservation needs until the crew left – the Evergreen Home Performance process went absolutely smoothly. Justin made a thorough inspection and took pictures with an infrared camera. His proposal described the scope of work in detail, and he explained what we could expect the proposed work to accomplish. Our proposal was forthcoming within a couple of days, and Justin was available to discuss it and answer questions.

Adrienne Harkavy

Evergreen removed and replaced the insulation in my attic. They did a great job!, Crew was excellent, and the whole thing went smoothly, and the attic was NOT easy to get into or work in, so kudos to some hard work done well!

Joel A.

Portland

First we have Evergreen do a BIG project worth about $20K (windows, basement, insulate & rebuild an entire wall, a door, attics, and air sealing). They were so great we had them come back later when we decided we did want to do our other door. They are professional and do great work. They take care of your home and are trustworthy, and on top of all that friendly! I highly recommend you call them!

Garreth C Debiegun

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