
Get matched with top insulation pros in Nashua, NH
There are 34 highly-rated local insulation pros.
Need a pro for your insulation service project in Nashua, NH?
TRUSTED BY NASHUA, NH HOMEOWNERS
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Verified Reviews for Insulation Service pros in Nashua, NH
*The Angi rating for Insulation Service companies in Nashua, 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 Nashua, 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 October 04, 2025
Find Insulation pros in Nashua

Insul-Kings
Insul-Kings
Insul Kings is a fully licensed and insured weatherization contractor specializing in weatherization work (adding insulation to home), energy audits, whole house air-sealing, and the installation of various types of insulation for both commercial and residential projects. We are a proud partner of Mass Save & NH Save and are rated in the top 5% of their contractor scoring.
"These guys are excellent! From Ken, whom performed the estimate, to Jeremiah and Chaz setting appointment to Dave and his partner.. I'm sorry I forgot your name. All very professional and accommodating... Dave explained what he was doing and why. Made me very comfortable with his experience and confidence in his work. I would DEFINITELY recommend Insul-Kings to anyone needing blown insulation."
Timothy C on January 2025
Insul Kings is a fully licensed and insured weatherization contractor specializing in weatherization work (adding insulation to home), energy audits, whole house air-sealing, and the installation of various types of insulation for both commercial and residential projects. We are a proud partner of Mass Save & NH Save and are rated in the top 5% of their contractor scoring.
"These guys are excellent! From Ken, whom performed the estimate, to Jeremiah and Chaz setting appointment to Dave and his partner.. I'm sorry I forgot your name. All very professional and accommodating... Dave explained what he was doing and why. Made me very comfortable with his experience and confidence in his work. I would DEFINITELY recommend Insul-Kings to anyone needing blown insulation."
Timothy C on January 2025

Calnan's Energy Systems Inc.
Calnan's Energy Systems Inc.
** Angie's List Super Service award winner in Insulation for 2008,2009,2010,2011,2013,2014,2015,2016,2017,2018,2019,2020,2021 and 2022**Calnan's Energy Systems Inc. has been in business for 40 continuous years and has more than 10,000 completed projects. Specializing in Energy Saving Insulation, Window and Door Installations! We have evolved from a multiple crew to a one crew company. This reduction in size has allowed us to deliver the high level of service our customers have come to expect. Direct supervision by the owner on each and every project, as well as family members involved can eliminate the concern of "Who will be working in my house?" Cost is determined by the job and all estimating is performed by the owner. No travel charges. We are proudly not a Mass Save contractor.
"Calnan Energy promptly gave me an estimate to replace our damaged bulkhead. They were professional, punctual and very patient explaining the process. Very quick response getting the estimate and getting my job done. It's a family owned and run company - could not have been any nicer and did a meticulous job installing my new bulkhead. The price was very competitive."
Karen M on February 2024
** Angie's List Super Service award winner in Insulation for 2008,2009,2010,2011,2013,2014,2015,2016,2017,2018,2019,2020,2021 and 2022**Calnan's Energy Systems Inc. has been in business for 40 continuous years and has more than 10,000 completed projects. Specializing in Energy Saving Insulation, Window and Door Installations! We have evolved from a multiple crew to a one crew company. This reduction in size has allowed us to deliver the high level of service our customers have come to expect. Direct supervision by the owner on each and every project, as well as family members involved can eliminate the concern of "Who will be working in my house?" Cost is determined by the job and all estimating is performed by the owner. No travel charges. We are proudly not a Mass Save contractor.
"Calnan Energy promptly gave me an estimate to replace our damaged bulkhead. They were professional, punctual and very patient explaining the process. Very quick response getting the estimate and getting my job done. It's a family owned and run company - could not have been any nicer and did a meticulous job installing my new bulkhead. The price was very competitive."
Karen M on February 2024
Simplified Development
Simplified Development
We offer construction services, including apartment reno, office buildouts, roofing, siding & more!
We offer construction services, including apartment reno, office buildouts, roofing, siding & more!
Strucore Construction
Strucore Construction
At Strucore Construction, we take pride in being your go-to partner for new construction, renovation, and additions. With a commitment to excellence, innovation, and client satisfaction, we bring a wealth of experience to every project. New Construction: Strucore Construction specializes in ground-up construction, guiding clients from conceptualization to completion with a focus on top-tier craftsmanship and adherence to timelines. Renovation: Our renovation services breathe new life into residential and commercial spaces. From interior transformations to exterior enhancements, Strucore Construction is synonymous with meticulous attention to detail. Additions: When it comes to expanding existing structures, our addition services seamlessly integrate new spaces, enhancing functionality and aesthetics in line with client preferences.
At Strucore Construction, we take pride in being your go-to partner for new construction, renovation, and additions. With a commitment to excellence, innovation, and client satisfaction, we bring a wealth of experience to every project. New Construction: Strucore Construction specializes in ground-up construction, guiding clients from conceptualization to completion with a focus on top-tier craftsmanship and adherence to timelines. Renovation: Our renovation services breathe new life into residential and commercial spaces. From interior transformations to exterior enhancements, Strucore Construction is synonymous with meticulous attention to detail. Additions: When it comes to expanding existing structures, our addition services seamlessly integrate new spaces, enhancing functionality and aesthetics in line with client preferences.
Metric Innovations
Metric Innovations
I manage a highly skilled team of contractors specializing in residential remodeling and development. No job is too big or small! Great communication Honest & knowledgeable Punctual & responsible VERY clean
I manage a highly skilled team of contractors specializing in residential remodeling and development. No job is too big or small! Great communication Honest & knowledgeable Punctual & responsible VERY clean
Kaylon Insulation
Kaylon Insulation
Spending a lot of money with heating? Trying to get the best insulation in your house? Are you looking to a new insulation job? We can help you! Check with us !!
Spending a lot of money with heating? Trying to get the best insulation in your house? Are you looking to a new insulation job? We can help you! Check with us !!
Insultech
Insultech
Insultech offers all of your insulation needs.let us work with you and we will figure out what best works for what you need done.we offer blown in insulation using fiberglass or cellulose. We offer regular batt insulation using fiberglass or mineral wool. We also offer spray foam insulation that is either open cell or closed cell. We offer quality,guaranteed work at the most competitive price that you will find. We will work with you every step of the way.we will leave your house just as clean If not cleaner than when we got there. We know that when we are finished with a job that not only will the customer be more than pleased but also with most jobs we can also guarantee that you will save a minimum of half of your old heating bill. Altho new to angi me and my partner who was also my mentor and the one that got me into this trade we have more than 70 years of experience and expertise.
Insultech offers all of your insulation needs.let us work with you and we will figure out what best works for what you need done.we offer blown in insulation using fiberglass or cellulose. We offer regular batt insulation using fiberglass or mineral wool. We also offer spray foam insulation that is either open cell or closed cell. We offer quality,guaranteed work at the most competitive price that you will find. We will work with you every step of the way.we will leave your house just as clean If not cleaner than when we got there. We know that when we are finished with a job that not only will the customer be more than pleased but also with most jobs we can also guarantee that you will save a minimum of half of your old heating bill. Altho new to angi me and my partner who was also my mentor and the one that got me into this trade we have more than 70 years of experience and expertise.
Malonsons removal and air sealing
Malonsons removal and air sealing
Do you have a rodent infestation, mold, asbestos, damaged insulation or just old ineffective insulation needing to be removed? We take care of all your removal needs! We offer more than just removals, after we vacuum we can sanitize and disinfect the area and also air seal any air penetrations! Before we start the process we like to prep the house by laying down drop cloths and taping off any areas needed to keep any unwanted dust isolated! Call today for a free estimate
Do you have a rodent infestation, mold, asbestos, damaged insulation or just old ineffective insulation needing to be removed? We take care of all your removal needs! We offer more than just removals, after we vacuum we can sanitize and disinfect the area and also air seal any air penetrations! Before we start the process we like to prep the house by laying down drop cloths and taping off any areas needed to keep any unwanted dust isolated! Call today for a free estimate
Jimenez Drywall Inc
Jimenez Drywall Inc
ABOUT Jimenez Drywall INC Is Fully Insured. We offer various of services. Channel/Wood Drywall Taping, located in the heart of New Hampshire, our team is trained to work in all weather conditions to perfect our customers projects. Our construction team is growing by the second and developing into a leading Drywall company in New England. We value the relationships we build with all of our customers, and we gurantee 100% of our work.
ABOUT Jimenez Drywall INC Is Fully Insured. We offer various of services. Channel/Wood Drywall Taping, located in the heart of New Hampshire, our team is trained to work in all weather conditions to perfect our customers projects. Our construction team is growing by the second and developing into a leading Drywall company in New England. We value the relationships we build with all of our customers, and we gurantee 100% of our work.
JS Drwall LLC
JS Drwall LLC
JS Drywall specializes in drywall hanging, taping, drywall patching, drywall remodeling, drywalling home additions, demolition, interior framing and insulation.Promising our customers with satisfaction.
JS Drywall specializes in drywall hanging, taping, drywall patching, drywall remodeling, drywalling home additions, demolition, interior framing and insulation.Promising our customers with satisfaction.
FAQs for insulation service projects in Nashua, NH
When choosing a professional insulation installer, consider asking these questions to determine the best fit.
Will you address air leaks in my house?
Can you provide an R-value (heat resistance) fact sheet?
What kind of insulation will work best for my home?
How do you handle signs of a water leak?
Are you licensed and insured?
Can you provide customer references?
The best type of insulation for your home depends on what you need, so the answer will depend on your specific situation. If you’re building a house, structural panels are easy to install during the building process in addition to being the most energy efficient type. If you live in a warm climate, reflective insulation may benefit you more as it costs less than other insulation types. And for standard attics, loose-fill, spray foam, or blown-in insulation work well.
If you plan to heat or cool your garage, you’ll need to insulate the garage ceiling. Insulating your garage ceiling will make your garage much more energy efficient and save on heating and cooling costs. Not only does insulation make your garage more energy efficient, it helps reduce noise and can extend the life of your garage roof. You can use fiberglass, cellulose, mineral wool, or spray foam insulation for this project.
In some cases, you may not have enough insulation to properly regulate your home’s temperature. Watch for a few signs your home needs more insulation, such as:
High heating and cooling bills
Uncomfortable room temperatures
Ice dams on the edge of your roof
Roof leaks
Cold floors and walls
Freezing pipes
Temperature fluctuations
Visibly low insulation
Noise problems
Pest problems
On average, insulating an attic costs about $2,500, ranging from $1,500 to $3,500, depending on the insulation type, amount, and your attic’s accessibility. Additional cost factors include sealing air leaks, removal or replacement of insulation, and inspections. Types of insulation include:
Blown-in: $1–$4 per square foot
Spray foam: $2–$5 per square foot
Batt: $2–$4 per square foot
Structural insulated panels: $4–$7 per square foot
Loose-fill: $2–$5 per square foot
Reflective: $0.50–$1.50 per square foot
The Nashua, NH homeowners’ guide to insulation services
From average costs to expert advice, get all the answers you need to get your job done.
Wool insulation offers a higher R-value than fiberglass but is more expensive. Use this guide to estimate wool insulation costs for your home.
Trying to calculate how much spray foam insulation costs? Our in-depth guide breaks down pricing by type, amount, and where you install it.
The cost to insulate a basement varies based on materials, size, and other factors, as well as how much of the work you wish to perform yourself.
Batt and roll insulation serve the same purpose, but which one is better for you depends on several factors. Our guide outlines what you need to know to make the right choice.
Are you wondering how to install foam board insulation? This step-by-step guide can help you decide whether you can tackle the project yourself or if you're better off calling a pro.
Crawl spaces are more than a small, uninhabitable space beneath your home. Learn how insulating your crawl space can make the area useful.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"