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TRUSTED BY SANDOWN, NH HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon72
    Verified insulation services reviews

Find Insulation pros in Sandown

Avatar for Weathertight Spray Foam, LLC
Weathertight Spray Foam, LLC
4.7(
51
)
Spray Foam Insulation - Install

Serving Sandown, NH and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"The team that came did an excellent job. Cleaned up after they were done, were very enthusiastic. Brad and Kim brought an excellent team. They explained the job and how it was going to be done and how spray foam is used. As well as the benefits of saving on heat and Air conditioning."
bathroom
1
bathroom
2
kitchen

+39

Response time1 day
Recommended by97%of homeowners
Avatar for AJ Pro Green Insulation Corp
AJ Pro Green Insulation Corp
4.9(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - InstallSpray Foam Insulation - Install

Serving Sandown, NH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"We were referred to AJ Pro Green by a colleague so we had them come out for a free estimate. They showed up on time and were very professional. They insulated our basement during our remodel and we couldnâ t be happier. The job was done quickly, was within our budget, and communication was fantastic. We would highly recommended!"
Roof open cell - walls closed cell
Roof open cell - walls closed cell
Roof/Attic closed cell
Spray Foam Insulation
Spray Foam Insulation

+57

Response time2 hrs
Recommended by100%of homeowners
Avatar for ABI LLC
ABI LLC
5.0(
5
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Sandown, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I could not have been more pleased by the work and the professionalism and the cost and the results. ABI was the first company to respond to my request for bids on the project. They were at the house within days of the request and were knowledgeable about putting insulation over light fixtures embedded in the ceiling. The attic did not have access from within or outside the house and they problem-solved this in a way that was a great solution. They lay down mats so as not to dirty up the carpets and stairs and they wore gear to protect themselves from the insulation. MY house was cleaner when they left than when they arrived. All of the people working on the project were professional and knowledgeable and the cost was extremely reasonable. For the first time this winter, my house feels like it can hold the heat. Looking forward to this summer, because I'm betting it will also improve my air conditioning!"
Response time12 hrs
35 neighbors recently requested a quote
Avatar for Sav-On Insulation  LLC
Sav-On Insulation LLC
4.3(
9
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Sandown, NH and surrounding areas

Approved

In business since 1973

Free estimates

Credit card accepted

"It was an absolute pleasure having Roland do my insulation job. He called me the very same day I submitted my inquiry and came to my home that afternoon and got right to work. It made me feel very comfortable to know that my job was being done by an experienced, efficient and knowledgeable insulation installer. He also was very polite and friendly. I highly recommend that anyone in need of insulation contact Roland Martin of Sav-on Insulation. He will do a fantastic job for you."
Response time7 hrs
34 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Adam Vaillancourt Roofing & Gutters
Adam Vaillancourt Roofing & Gutters
4.7(
83
)
Blown-In Insulation - Install or Upgrade

Serving Sandown, NH and surrounding areas

Approved (Corporate)

In business since 2004

Free estimates

Emergency services offered

"These guys were excellent. Very professional. Provided options up front. Helped with insurance. Scheduled promptly. Arrived exactly on schedule. Took an immense amount of care with plantings. Worked really well as a team. Did a beautiful job. Went over everything that was done. Cleaned up extremely well."
Gutter replacement Old gutters were poorly installed and improperly pitched.
New roof replacement in Jaffrey, NH with Owens Corning shingles and Platinum warranty.
Before and after photo of a house we did in Hancock NH. One of our favorite areas to work! We did this job in one day with Owens Corning shingles with a Platinum warranty. The last roof these homeowners will ever need.
Full roof replacement in Mont Vernon NH. Roof had cracked ridge cap, seal failure and was high nailed.We replace the roof in 1 day.
Response time1 day
Response rate100%
12 neighbors recently requested a quote
Avatar for Quality Insulation of Portsmouth
Quality Insulation of Portsmouth
5.0(
2
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Sandown, NH and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Credit card accepted

"Quality Insulation of Portsmouth did two jobs for me: They added blown in insulation to my attic last fall and installed gutters plus leaf guards this spring. Both jobs were excellently done at a reasonable cost. I would certainly recommend them and will likely use them again in the future."
PHOTOS
PHOTOS
PHOTOS
PHOTOS
Response time2 days
19 neighbors recently requested a quote
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Insulation questions, answered by experts

The cost to install a radiant barrier ranges from $700 to $2,800, depending on the size of your roof and the type you choose. Most people pay an average of $1,700 to install a radiant barrier. Foil options, both single- and double-sided, cost between $0.10 and $0.90 per square foot, while spray-on options start at $0.60 and go all the way up to $1 per square foot—which can add up quickly.

Yes, you need a 1.5-inch to 2-inch air gap in a cathedral ceiling to allow proper air flow and prevent cathedral ceiling venting problems. This amount of airspace allows warm, moist air to properly leave your ceiling to avoid moisture build-up and other issues that put your home at risk. You can also add an air vent for extra air flow.

A DIY blown-in insulation project in a typical attic should take you no more than a week to complete. Experienced homeowners can blow an entire attic in one or two days.

Fiberglass is considered dangerous only if your skin comes into contact with it or if you breathe in any fiberglass particles. This is because fiberglass is literally made of tiny fibers of glass that can cut your skin and your organs. While there aren’t many long-term effects, it’s still important to take all the proper safety precautions when working with fiberglass.

EIFS (Exterior Insulation and Finish System) siding can last from 20 to 60 years, with some properly maintained systems lasting even longer. The exact lifespan depends heavily on several factors, most notably the quality of the initial installation and the consistency of maintenance.

Factors that can shorten the life of EIFS include:

  • Improper or poor-quality installation

  • Moisture intrusion

  • Damage from high winds, storms, or hail

  • Damaged flashing and sealant

  • Lack of regular maintenance and unfixed damage

To maximize the lifespan of your EIFS, it is crucial to hire an experienced and qualified professional for the installation. Additionally, regular maintenance—such as cleaning, repairing small cracks or blisters, and having the system professionally inspected—will help identify and resolve issues quickly, preventing long-term damage.

The Sandown, NH homeowners’ guide to insulation services

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