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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon64
    Verified insulation services reviews

Top-Rated Insulation pros in Rochester - Updated Nov 2026

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

Serving Rochester, NH and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Brad and his team did a superb job installing spray foam insulation in our home in southern NH. Brad has a great understanding of how buildings work. The foam his team installed made our home incredibly and immediately warmer for a very fair price. He was upfront and very well reasoned about what would and would NOT work for our ice dams and cathedral ceilings.. His company scheduled us and completed the job faster than all the other contractors offered to do. He also offered a better price out of four bids. I feel that we really were lucky to have chosen Brad to do the work. We received four bids, some were substantially more expensive. And yet, Brad offered the only solution that made sense to us and that actually WORKED. The install went very fast. 24 hours post installation, we had zero smell. Our home was left as clean as when they started the work. I am extremely impressed."
bathroom
1
bathroom
2
kitchen

+39

Response time1 day
Recommended by97%of homeowners
Avatar for ABI LLC
ABI LLC
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Rochester, 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
38 neighbors recently requested a quote
Avatar for EcoFit Insulation LLC
EcoFit Insulation LLC
5.0(
1
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Rochester, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Ecofit Insulation provides high-quality retrofit insulation services for homeowners in the Portland suburbs and lakes region of Maine. We assess your home as a whole system and recommend what will make the biggest impact for your comfort, energy savings, and budget. Every project is custom, focused on long-term value—not upsells.\n\nWe're led by a BPI Certified Building Analyst with years of hands-on experience, and we participate in the Efficiency Maine program to help reduce your out-of-pocket costs. From attics and walls to basements and crawlspaces, our crew takes real pride in doing the job right. Our culture is built around accountability, high standards, and making the process clear, honest, and easy from start to finish.\n\nPlease note: We do not offer services for mobile or manufactured homes.

Response time2 days
Response rate95%
33 neighbors recently requested a quote
Avatar for Quality Insulation of Portsmouth
Quality Insulation of Portsmouth
5.0(
2
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade+1 more

Serving Rochester, 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
16 neighbors recently requested a quote
Avatar for My Handyman of Dover Portsmouth Rochester
My Handyman of Dover Portsmouth Rochester
3.5(
39
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Rochester, NH and surrounding areas

Approved

In business since 2018

Warranties offered

Small jobs welcome

"They are very prompt. They sent somebody in a timely fashion. No waiting around for somebody to be available and then having them re-schedule, cancel, delay, etc, as so often happens."
French Door Installation
Front Door Painting Services
Shade Installation
Garbage Disposal Installation
Toilet Installation

+47

Response time1 day
20 neighbors recently requested a quote
Recommended by69%of homeowners
Sonart Construction Corp.
2.3(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Rochester, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
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Insulation FAQs, answered by experts

Because of the moisture concern, open-cell foam requires a vapor barrier. The barrier protects against high humidity and moisture exposure in rooms such as basements, bathrooms, or exterior walls. It wouldn't be necessary in dry interior spaces.

Yes, spray foam insulation can be applied to your ductwork and effectively insulate your ducts. Blanket insulation is the easiest insulation product to DIY since it is easy to wrap around ducts. However, spray foam insulation can also benefit your HVAC system if applied to air ducts.

When temperatures are too cold, it can keep ice from melting, and products like ice melt and rock salt are ineffective. Water turns to ice in temperatures below 32 degrees Fahrenheit. Ice melts on its own when temperatures reach above 32 degrees Fahrenheit. 

Ice melt loses effectiveness in temperatures below -25 degrees Fahrenheit, and rock salt works in temperatures 5 degrees Fahrenheit and warmer.

Yes, proper insulation in your attic or ceiling can help prevent ice dams. When attic spaces are too warm, they cause the snow on the roof over those areas to melt more quickly than the rest of the roof and then travel downward to a colder section of the roof where they refreeze. If less heat is allowed to escape from underneath the roof, snow will melt at a more consistent rate, making ice dams less likely.

You do not need to drywall over most types of garage insulation. However, doing so can increase noise reduction, make the space more attractive, and keep children and pets from touching harmful fiberglass insulation. If you’re using cellulose or some other type of blown-in insulation (fiberglass and mineral wool are common), you will need drywall to contain the insulation material.

The Rochester, NH homeowners’ guide to insulation services

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