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Top-Rated Insulation pros in Lancaster - Updated Nov 2026

Avatar for Performance Spray Foam
Performance Spray Foam
4.9(
8
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or Upgrade

Serving Lancaster, NH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"The work they performed was beyond excellent! They were clean and respectful and worked continuously till the job was done. Can't wait to see what we will be saving on heat. Thanks so much Paul & crew!"
My jobs
My jobs
My jobs
Response time1 day
37 neighbors recently requested a quote
Recommended by37%of homeowners
Avatar for CCF Spray Foam & Insulation LLC
CCF Spray Foam & Insulation LLC
5.0(
1
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Lancaster, NH and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I couldn’t be happier with the service I received! From the very beginning, the team was responsive, friendly, and great about following through. Scheduling was convenient, they arrived right on time, and the spray foam insulation work under my lake cabin was completed promptly and professionally. Chris was especially friendly and a pleasure to work with. Their pricing was competitive, and the entire experience was excellent from start to finish. I highly recommend them to anyone looking for quality spray foam insulation work. It’s refreshing to work with a company that delivers on its promises!"
7 neighbors recently requested a quote
Sonart Construction Corp.
2.3(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Lancaster, 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!

SAV-ON INSULATION
4.5(
6
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Lancaster, NH and surrounding areas

In business since 1969

Emergency services offered

"I was plagued with recurring ice dams in a few areas of my roof. After investigation, it was discovered that the insulation in a few visible areas was sub-par. Roland came in and quickly spotted the problem areas. He assured me that the could fix these problems immediately. He used a combination of rearranging existing batts, blown-in fiberglass and spray foam to seal the attic space, over the course of two visits. He's extremely personable and always called me back or answered the phone right away."
Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
Kevin Emmerling
4.0(
10
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Lancaster, NH and surrounding areas

In business since 2021

Free estimates

Warranties offered

"I hired Kevin to do insulation work in my home in Bartlett, NH and I could not have asked for a better experience. He was very honest and knowledgeable from the very beginning and made us extremely comfortable and informed throughout the entire process. He was on time and very thorough. We had a couple estimates done and the price could not be beat! We had such a great experience and could not recommend Kevin enough!"
Response time2 days
Recommended by75%of homeowners
Avatar for NEK Spray Foam Company
NEK Spray Foam Company
3.9(
9
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallSpray Foam Insulation - Install

Serving Lancaster, NH and surrounding areas

In business since 2016

"Very professional, very efficient. They covered everything in the room where they had access to the attic. Cleaned up after the job. They put some extra insulation in and didn't charge extra. Stuck to the original estimate."
Response time2 days
Recommended by100%of homeowners
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Insulation FAQs, answered by experts

Yes, brick houses are better insulated, because the bricks slow down the passage of air from the outside to the inside and vice-versa. This helps to stabilize the internal temperature of the home. When combined with proper residential insulation, brick houses are more efficient and better insulated than other types.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

Hanging a thick blanket over your windows will help to keep the heat inside, but only a little. Covering the glass will also prevent the sunlight from getting in, which might actually decrease the efficiency of your window overall. If you get to the point where you’re hanging blankets over your window to keep warm, call in an expert to seal around your windows to prevent warm air from escaping. They may also recommend replacing old windows that aren’t as insulative as newer window technology. Sealing a window isn’t terribly expensive and can make a big difference.

Yes, covering exposed wires is necessary for several important reasons. Exposed electrical wires pose significant risks, such as electrical shocks, fires, short circuits, and potential damage to your home’s electrical system. By properly insulating and protecting the wires, you can minimize the potential for accidents, prevent electrical fires, and ensure your electrical system stays intact. 

Yes, insulating hot water pipes helps your system run more efficiently. This is especially true in basements in colder climates, where cold air likes to settle in. There are a few ways to insulate water pipes (foam is common) to keep hot water hot, reducing the need for your water heater to constantly heat the water in the tank or your circulator to kick on more than necessary.

The Lancaster, NH homeowners’ guide to insulation services

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