4.1 
337 *The Angi rating for Treehouse Building companies in Windham, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Treehouse Building needs.
*The HomeAdvisor rating for Treehouse Building companies in Windham, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Treehouse Building needs.
Last update on December 08, 2025
Serving Windham, ME and surrounding areas
Approved
In business since 1988
Free estimates
Customers say: Quick response
"They did beautiful work. Every detail was perfection, never rushed or sloppy. We will definitely be using Sunapee Builders again."
+36
Serving Windham, ME and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"Kevin built us a custom storage shed, and we couldn’t be happier with how it turned out. It looks amazing—so much so that neighbors have actually stopped to compliment it! I’m pretty picky about details, and this definitely met my expectations. Kevin is honest, easy to work with, and clearly knows his stuff. There were a couple of small bump: his invoices were a bit hard to follow and getting him back to wrap up the final touches took a little extra effort, but in the end the shed is fantastic and I am very satisfied. I’d definitely recommend Kevin to anyone looking for quality custom work."
+90
Serving Windham, ME and surrounding areas
Approved
In business since 1978
Free estimates
Emergency services offered
"Everything was done the work was excellent. I am looking forward to doing other projects with Dennis"
+20
Serving Windham, ME and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Small jobs welcome
"Excellent job, I will be using them to also paint and put flooring in the bedrooms.."
Serving Windham, ME and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"They were extremely talented, creative and he have a lot of good idea. His worked is phenomenal and he is a very nice man."
+1
Serving Windham, ME and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"Dan and James did exceptional work at my home in Lewiston. They are jack-of-all trades. They are skilled at electrical plumbing, framing, finish work, ktchen installs, plank flooring, exterior work, painting, deck building, etc. Not only are they highly skilled, but they are kind, respectful, responsive and so easy to work with. I had an issue with an overhead light on a Sunday, and Dan came over within an hour to fix it. I'm so grateful for all their hard work and will work with them again and again. A++ REVIEW! A+++ review!!!"
Serving Windham, ME and surrounding areas
Approved
In business since 2010
Free estimates
Offers commercial services
"Highly recommend them to anyone and his Dad works with him and they both are great people!"
+27
Serving Windham, ME and surrounding areas
Approved
In business since 2020
Free estimates
Small jobs welcome
"He assembled a new kitchen cart and a storage cabinet too. He did a great job and was done each piece in an hour."
+106
Serving Windham, ME and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Emergency services offered
"We hired GreyBridge to install 2 exterior doors for us. Joshua, the owner, took great care in the job, and was professional, helpful and nice. He exceeded our expectations. I would highly recommend him to anyone that needed help in any projects that needed to get done."
+104
Serving Windham, ME and surrounding areas
Approved
In business since 2018
Free estimates
Offers commercial services
"We had shelves installed in our coat closet to turn it into a pantry, and Brian Clark did a great job. He made sure he understood exactly what we wanted before starting, worked professionally, and was prompt and efficient. We’re very happy with the results and would definitely recommend him."
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