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  • Verified reviews icon70
    Verified insulation services reviews

Top-Rated Insulation pros in Newton - Updated Nov 2026

Avatar for ABI LLC
ABI LLC
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Newton, 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 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 Newton, 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
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 Newton, 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 Newton, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

Green Era Insulation
4.8(
25
)
Batt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Newton, NH and surrounding areas

In business since 2017

Free estimates

Warranties offered

"We had our barn insulated for a conversion. Murad the owner was prompt, efficient and tidy. We are very happy with the quality of his work, professionalism and pricing which was considerably less than the other quotes we got. Would definitely recommend!"
Response time1 day
Recommended by100%of homeowners
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Insulation FAQs, answered by experts

You should not put fiberglass insulation in basements, since fiberglass is known to trap mold and mold is more commonly grown and produced in basements. You should also avoid placing insulation near water heaters, oil burners, or other hot appliances. For more information about the best and worst places to install insulation, consider hiring an insulation professional.

Although spray foam insulation typically has a higher price point than traditional insulation, the benefits often justify the investment. It offers superior sealing properties, which can lead to significant energy bill savings. Spray foam also provides excellent moisture resistance and soundproofing. Other advantages include improved indoor air quality by minimizing allergens, a long lifespan of 80 to 100 years, added structural strength to the home, and a straightforward installation process.

Insulating your home's exterior walls can realize up to a 20% reduction in your monthly energy bills. This means that regardless of how much the project costs, it can begin to pay you back immediately. Additionally, adding spray foam and other high-end materials can increase the selling value of the property.

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

It’s best not to install a radiant barrier directly under insulation because it requires an air gap on at least one side to work properly. Instead, you should install the radiant barrier over your existing insulation to create an air space to reflect the radiant heat.

The Newton, NH homeowners’ guide to insulation services

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