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

Find Insulation pros in Sandown

Avatar for ABI LLC
ABI LLC
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective 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
39 neighbors recently requested a quote
Avatar for Sav-On Insulation  LLC
Sav-On Insulation LLC
4.3(
9
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam 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
32 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Quality Insulation of Portsmouth
Quality Insulation of Portsmouth
5.0(
2
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, 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 really lived up to their name! We had a great experience from start to finish. Joe, our salesman was super responsive and knowledgeable during the process. The installation specialists were professional and tidy. I would definitely recommend them to anyone that is in need of insulation."
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Response time2 days
19 neighbors recently requested a quote
Avatar for Broman Contracting LLC
Broman Contracting LLC
5.0(
13
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Sandown, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"They did the job as defined in the scope. I have not been able to test its full function until we have a heavy rain storm . It is designed to keep the basement dry under heavy rain or tropical down pours.. I was very pleased that they were on time and very communicative throughout the engagement."
Before
Excavation
Backfill
Basement Waterproofing
Finished Concrete

+2

2 neighbors recently requested a quote
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Insulation questions, answered by experts

Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.

It improves energy efficiency, reduces noise, enhances indoor comfort, and prevents drafts by filling wall cavities.

For your safety, you should always wear a mask when cutting batts of fiberglass insulation. We also recommend wearing eye protection, safety gloves, and long sleeves to protect your skin. Properly suiting up helps you avoid several fiberglass issues, such as cuts from the tiny shards of glass and inhaling small bits of fiberglass.

Polyisocyanurate foam, or polyiso for short, has the highest R-value per square inch: 6.5 to 6.8. Polyiso is a rigid foam that comes with a reflective foil on both sides to serve as a radiant barrier. Given its high R-value, rigid foam is usually meant for foundations and basement walls.

In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s license lookup tool to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.

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.