Hidden insulation problems in a newer Belfast home

How a Belfast homeowner uncovered attic insulation issues and saved $4,000 with Efficiency Maine rebates

The problem: A “newer” home that wasn’t performing the way it should

After years living in older homes with obvious insulation problems, Tom M. expected his 2008 Belfast home to be comfortable and efficient. Instead, he quickly discovered a major issue: the attached garage had no insulation – just bare studs.

Concerned about winter comfort and energy loss, Tom contacted Evergreen Home Performance for a Belfast insulation estimate. What began as a simple garage project soon revealed much larger hidden problems affecting the entire home.

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A broader look: When an energy advisor sees the bigger picture

Tom originally reached out about insulating the garage, but Evergreen Energy Advisor Irene suggested stepping back and evaluating the entire home first.

Her comprehensive Belfast home energy audit examined the attic, basement, and building envelope, uncovering hidden insulation and air-sealing issues that were quietly affecting comfort and energy performance throughout the house.

Without that broader assessment, Tom would have fixed only the most visible problem while larger efficiency issues remained unresolved.

What the Belfast home energy audit uncovered

The audit revealed multiple performance issues that the family had never noticed, including inadequate attic insulation, significant air leakage, and evidence of rodent entry points.

Because the home had changed ownership several times during and after the 2009 housing downturn, insulation details had been installed inconsistently, leaving gaps that reduced comfort and increased heating costs.

These hidden issues are common even in newer homes, which is why Evergreen’s whole-home evaluation approach often identifies opportunities that homeowners don’t realize exist.

The solution: Professional Belfast attic insulation and air sealing

Phase I: Main house attic (August 2024)

Evergreen’s insulation team began by improving the attic’s thermal and air barrier systems:

  • Removal of outdated insulation materials where necessary
  • Air sealing around wiring, plumbing, and vent penetrations
  • Framing improvements to achieve proper insulation depth
  • Dense-pack cellulose installed in attic slopes (R-44)
  • Loose-fill cellulose installed across the ceiling plane (R-58)
  • Air-sealed attic hatch and improved attic access

After installation, blower-door testing showed a 15% reduction in air leakage, improving comfort and reducing energy loss.

Phase II: Garage insulation (September 2025)

About a year later, Evergreen returned to insulate the attached garage – the original concern that led Tom to call. Insulating the garage walls and roof slopes helped reduce cold-air transfer into adjacent living spaces, completing the home’s building-envelope improvements.

Learn more about Evergreen’s insulation services and how targeted upgrades can improve year-round comfort.

Making sense of Efficiency Maine rebates

Navigating available incentives was a key part of the project. Evergreen helped Tom identify qualifying upgrades and complete the rebate process, resulting in $4,000 in Efficiency Maine incentives for the attic improvements.

Explore available Efficiency Maine rebates and financing to see how insulation upgrades can become more affordable.

An educational experience, not a sales pitch

Throughout the project, Tom appreciated Evergreen’s advisory approach. Instead of feeling pressured to make quick decisions, he was given time to review recommendations, understand testing results, and plan improvements that made sense for his home and budget.

“I never got the sense she was really selling anything,” Tom said. “She was great, like giving advice.”

The results: A more comfortable Belfast home

Today, Tom and his family live in a home that feels noticeably more comfortable year-round:

  • Improved attic insulation levels and air sealing
  • Reduced drafts and cold spots
  • Sealed rodent entry points
  • Lower heating energy loss
  • Insulated garage reducing cold transfer into the home

Just as important, the family now has confidence that hidden building-performance problems were identified and solved before becoming costly repairs.

Your Maine home deserves the same attention

Like Tom, many homeowners live with hidden insulation and air-sealing problems without realizing it. A professional whole-home assessment can reveal opportunities to improve comfort, reduce energy bills, and access thousands of dollars in rebates.

Schedule your free consultation or call 207-594-2244 to get started.

Evergreen Home Performance proudly serves homeowners in Belfast, Rockland, Portland, and communities across Maine with professional insulation, air sealing, and energy-efficiency upgrades.

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

I highly recommend Evergreen! 1st, I had a home efficiency inspection (that was free) & Bryan P. was great! He took the time needed, asked & listened to what I thought were priorities, explained clearly what he thought were priorities & why, then gave me numerous options. No pressure whatsoever. Then I had my attic sealed & insulated as the 1st step & Bryan came along on day 1 to introduce everyone & make sure we were all on the same page. Bruce's team (inc. Kelsey & Roland) did the work - they were exceptional!!

Melissa M.

Kennebunk

"Working with Evergreen from start to finish was a great experience." See what our customers have to say about their experience with Evergreen Home Performance. 

Jeff L.

This team of individuals was professional at all times. They set up barriers that kept the dust at a minimum. They conducted an air flow audit and cut the draft circulation from the outside in half by sealing cracks. They hauled out the old insulation and replaced it with blown in insulation with an R - 60 Value. They also did the rebate paperwork so that I could get my $1500.00 rebate from the state of Maine. I highly recommend Evergreen Home Performance!

Daniel B.

Rockland

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

Evergreen was so helpful in securing us Efficiency Maine funding for a big attic insulation project early this winter. They did all of the paperwork, and totally guided us through a vermiculite removal process that included a payment from a trust for the procedure. I could instantly feel the second floor being so much warmer than before. The boiler does not kick on nearly as frequently since they completed the job. It was worth every penny! Brian Robinson was so thorough throughout the whole process including a full walk through after the job had been completed.

Todd W.

Camden

The Evergreen Team did a fabulous job and was very tuned and responsive to the particular needs we had. The job was done right on budget and we are thrilled with the improved warmth and energy efficiency.

Ira M.

Rockland

Update 12/2018: Evergreen has completed Phase II of my house (insulating and installing air/moisture barrier on exterior walls, replacing old windows) and now that heating season is upon us, the difference is astonishing. The house is tight as a drum and so easy to keep warm. Worth every penny. Thank you all! Working with Evergreen was a positive experience from start (no charge energy audit) to finish (a MUCH more comfortable home). Brian Robinson spent a lot of time with me on the audit, explaining clearly what he was finding in my ca.

Rebekah W.

Rockport

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

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

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

Our house still the most efficient home we’ve ever lived in. And we have you folks to thank for that! A special howdy to Brian Robinson please!

Bruce O’Donal and Eva Butler

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

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

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

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