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Top-Rated Insulation pros in Winter Harbor - Updated Nov 2026

Avatar for Insulation of Maine, Inc.
Insulation of Maine, Inc.
4.9(
15
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Winter Harbor, ME and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quick response

"Needed insulation in basement and in attic. Got a prompt response for an estimate, no delays in getting the work done. Charged what they said and were respectful of our schedules and to our home. Our house is noticeably warmer and less drafty. Helpful in getting the paperwork together for a state rebate. Great company."
Drill and fill
Insterior Dense pack
Dense pack cellulose
Dense Pack cellulose
dense pack exterior walls

+13

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Apollo Insulation
Apollo Insulation
4.8(
5
)
Blown-In Insulation - Install or Upgrade

Serving Winter Harbor, ME and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"They were very polite, very reasonable on price and their quality of work with some of the best I have ever seen. Would recommend to anybody looking to have any type of insulation work done"
Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for octagon-restoration
octagon-restoration
4.7(
96
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Winter Harbor, ME and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"We had water damage due to a leak in our roof. We contacted Octagon because of their glowing reports on Angie's List. I cannot say enough about the company. Jessica, the coordinator, was very professional and excellent at keeping me informed on who was coming and when. She assigned the project to Heather, one of the project managers. We were extremely pleased with Heather. She was incredibly professional and very well educated in water damage mitigation and mold remediation. She called to let me know when she was coming, arrived on time, inspected the damage, immediately knew we had a mold problem and began the work to remove the molded areas and installed a HEPA filter to clean out any spores floating around as a result of the work being done. She communicated in detail everything regarding the job -- what she saw, how she was going to fix it, etc.. etc.She even crawled up into our attic to see if there was any damage above the ceiling -- truly above and beyond. As this was an insurance claim, she worked with State Farm to ensure that everything that needed to be done for our benefit was discussed with and agreed to by our claims adjustor. I cannot say enough about both Heather and Octagon. Heather explained that the owner of the company hired professionals and everyone was expected to have at least one certification in one of the areas that Octagon provided service in. It was evident by my experience with all their employees that they hired and retained the best. I would most definitely use them again and highly recommend them to anyone."
Water extraction.
Octagon vehicles
Drying structure damaged by water.
MOLD REMEDIATION
Dirty air duct.

+2

Response time6 hrs
Response rate100%
Recommended by90%of homeowners
Efficiency Foam LLC
5.0(
3
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Winter Harbor, ME and surrounding areas

Efficiency Foam provides high quality installation of closed cell spray foam insulation. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

Camp in Garland
House on the lake
Camp in Garland
House on the lake
Camp in Garland

+9

Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Winter Harbor, ME and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Abbott Insulation Plus
5.0(
1
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Winter Harbor, ME and surrounding areas

In business since 2000

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Recommended by100%of homeowners
Avatar for New England Home Renovations LLC
New England Home Renovations LLC
4.0(
311
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Winter Harbor, ME and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"Our old water heater died.  Called around for some estimates, he was the best price.  I got someone on the phone right away. Richard the owner was out to give me an estimate within a few hours, and then came back to install the next day.  Great guy, great service, great price.  I'm also looking to have him do some work on my house - in the process of getting estimates for exterior house painting and a partial bathroom remodel.  Would definitely recommend to friends."
Before
After's
New boiler install
Removal of cast Iron to PVC.
Additional Photos

+37

Recommended by89%of homeowners
Christian MciItyre Insulation
New to Angi
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Winter Harbor, ME and surrounding areas

In business since 2020

Free estimates

Offers commercial services

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

Showing 1-10 of 16
Insulation FAQs, answered by experts

Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together. 

Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.

For standard 2x4 walls, the ideal insulation has an R-value between R-13 and R-15. This level of insulation, typically around 3.5 inches thick, fits well within the wall cavity. Common options include fiberglass batts and spray foam. The best choice for your home can depend on your climate; use R-value maps, like those from Energy Star, to determine the recommended level for your region. For colder climates, you might also consider adding exterior insulation for greater efficiency. Always check with your local building codes to ensure you meet any required standards.

Plaster itself has a higher R-value than drywall. However, there are other considerations surrounding plaster and insulation. As a general rule, it's easier to obtain consistency in insulating value and quality when working with drywall rather than plaster. Plaster walls often don't contain any insulation behind the wall covering by design, and careful evaluation is necessary when choosing to add it.

Yes, even though frost-free and freeze-proof faucets are designed to withstand winter weather, it is still recommended to cover them with an insulated cap, especially during periods of extreme cold. These faucets work by keeping excess water inside the home's heated space and using a downward slope to drain, but this protection can be compromised. For the faucet to work correctly, you must always disconnect any attached hoses before temperatures drop below freezing, as a hose can trap water and lead to freezing. Ultimately, covering all outdoor faucets, even freeze-proof models, is the best way to prevent frozen and burst pipes.

Single-pane windows might let in the cold, but if you’re not ready for a long-term solution or window replacement, there are quick fixes to keep your space warmer. Start by sealing gaps with weatherstripping or caulking around the frame to block drafts. For an extra barrier, apply window insulation film to the glass, trapping an air pocket between the film and the window. Thick curtains or thermal drapes can also help keep the chill at bay. And if you’re in a pinch and looking to get creative, bubble wrap can provide a surprisingly effective layer of insulation—just spritz the window with water and press it on, bubble side in.

The Winter Harbor, ME homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.