4.4 
146 *The Angi rating for Insulation Service companies in Merrimack, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Merrimack, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on May 10, 2026
Serving Merrimack, NH and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Sean and Dave were super on this project. They got the project done on time, their communication was excellent, and they did a high quality job."
+39
Serving Merrimack, NH and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"We had a great experience with this insulation company. The crew members were very kind, professional, and hardworking throughout the project. They took the time to answer all of my questions while they were on site and made the whole process feel easy and stress-free. I was very pleased with the work they did and noticed a real difference in the way my house feels afterward. I would definitely recommend them to anyone considering insulation work for their home."
Serving Merrimack, NH and surrounding areas
Approved
In business since 2022
Free estimates
Small jobs welcome
"Happy to work with this company, will definitely be reaching out again for any future insulation needs. Very professional and nice people."
+57
Serving Merrimack, NH and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"Quick turnaround from estimate to getting the work done."
+9
Serving Merrimack, NH and surrounding areas
Approved
Free estimates
Offers commercial services
"⭐⭐⭐⭐⭐ Excellent service! They did an amazing job with the insulation in my house. Very professional, reliable, and hardworking. Everything was done with great attention to detail, and I’m really happy with the results. I highly recommend this company to anyone looking for quality insulation work!"
Serving Merrimack, 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!"
Serving Merrimack, NH and surrounding areas
Approved
In business since 1973
Free estimates
Credit card accepted
"Roland and his partner were great to work with. He explained everything he was going to do and then they executed the plan quickly and efficiently. He was very reasonable and I would highly recommend him."
Serving Merrimack, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Warranties offered
"Warren did foam insulation to a gruesome crawl space and also installed a dehumidifier/fan to dry it up. He was very responsive, answered all my questions, was extremely polite, stayed under budget, excellent work done, and cleaned up every day. I m very pleased with all the work he did. I will hire him for more jobs. I highly recommend N.E.E. Construction and Spray foam."
+16
Serving Merrimack, NH and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Lorenzo from Broman's called me and set up a time and date to seal our driveway and walkway. They showed up on time were professional and completed the job to my satisfaction. I would highly recommend them."
+2
Serving Merrimack, NH and surrounding areas
Approved
In business since 2014
Free estimates
Warranties offered
"Matthew @ Freedom Framinging was thorough, professional and tidy. Would definitely use him again."
+34
From average costs to expert advice, get all the answers you need to get your job done.
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.
The cost of blown-in insulation costs varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
How much does it cost to insulate a wall? This guide breaks down the associated costs and variables to consider when setting your project budget.
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.
