Get matched with top insulation pros in South Lancaster, MA
There are 22 highly-rated local insulation pros.
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TRUSTED BY SOUTH LANCASTER, MA HOMEOWNERS
4.6 Average homeowner rating
60 Verified insulation services reviews
Verified Reviews for Insulation Service pros in South Lancaster, MA
*The Angi rating for Insulation Service companies in South Lancaster, MA 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 South Lancaster, MA 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 November 02, 2025
Find Insulation pros in South Lancaster
Insul-Kings
50 Boston Rd
Insul-Kings
50 Boston Rd
Customers say: Terrific value
204 local quotes requested
26 years of experience
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
McLaughlin Weatherization
12 Twin Oaks Rd
McLaughlin Weatherization
12 Twin Oaks Rd
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
129 local quotes requested
Are you looking for a green environmentally friendly insulation company? Is your home cold and drafty? Do you want to save money on your home heating bills? McLaughlin Weatherization can help you resolve these problems. We install fire rated mold resistant programs available through your local utilities or Mass Save program. We can service your entire home insulation needs. From exterior walls to attic insulation we can do it all including air-sealing, venting, sound deadening or infrared scanning. McLaughlin Weatherization is your ideal choice for an array of effective insulation services. We use 100% borate fire-retardant material. Our cellulose insulation is environmentally friendly. We offer the highest content of recycled material of any insulation that is fire-, insect-, mold- and mildew-resistant. DBA McLaughlin and Williams Company Incorporated
"Professional crew; work was done quickly, with minimal disruption and fairly good cleanup. The house is older and the crew chief took reviewed the interior carefully to insure there would be no damage to the walls in the insulation process."
Katherine L on May 2022
Are you looking for a green environmentally friendly insulation company? Is your home cold and drafty? Do you want to save money on your home heating bills? McLaughlin Weatherization can help you resolve these problems. We install fire rated mold resistant programs available through your local utilities or Mass Save program. We can service your entire home insulation needs. From exterior walls to attic insulation we can do it all including air-sealing, venting, sound deadening or infrared scanning. McLaughlin Weatherization is your ideal choice for an array of effective insulation services. We use 100% borate fire-retardant material. Our cellulose insulation is environmentally friendly. We offer the highest content of recycled material of any insulation that is fire-, insect-, mold- and mildew-resistant. DBA McLaughlin and Williams Company Incorporated
"Professional crew; work was done quickly, with minimal disruption and fairly good cleanup. The house is older and the crew chief took reviewed the interior carefully to insure there would be no damage to the walls in the insulation process."
Katherine L on May 2022
Wattson Home Solutions
100 Lamartine St
Wattson Home Solutions
100 Lamartine St
20 years of experience
We are your local green expert when it comes to improving a home’s energy efficiency and comfort. We help residents by offering leading-edge home performance solutions that save energy and lower utility bills. Start with a no-cost Mass Save home energy assessment- From there we also install recommended insulation upgrades, ductless mini split/ heat pumps, as well as solar! We will assist with all rebates & incentives you qualify for.
We are your local green expert when it comes to improving a home’s energy efficiency and comfort. We help residents by offering leading-edge home performance solutions that save energy and lower utility bills. Start with a no-cost Mass Save home energy assessment- From there we also install recommended insulation upgrades, ductless mini split/ heat pumps, as well as solar! We will assist with all rebates & incentives you qualify for.
Modern Energy
24 Rockdale Street
Modern Energy
24 Rockdale Street
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Modern Energy is a top rated Mass Save contractor that specializes in Whole Home Heat Pump installation for both residential and commercial customers. With deep roots in the energy efficiency world, we always make sure to install the most efficient, cost-effective products on the market. Plus - we have in house staff to help our customers handle the rebate and financing process!
"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"
Michael T on September 2025
Modern Energy is a top rated Mass Save contractor that specializes in Whole Home Heat Pump installation for both residential and commercial customers. With deep roots in the energy efficiency world, we always make sure to install the most efficient, cost-effective products on the market. Plus - we have in house staff to help our customers handle the rebate and financing process!
"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"
Michael T on September 2025
4 Season Shield Insulation
4 Season Shield Insulation
5 years of experience
4 Season Shield Insulation is a local Massachusetts company that specializes in all types of insulation (open and closed cell spray foam, fiberglass, mineral wool, blow-in cellulose). We are fully licensed and insured and available to work in the entire New England area. We offer free estimates for both residential and commercial services. Our team is ready to work for you, no matter the size of your job. A fully trained staff with the best products in the market.
4 Season Shield Insulation is a local Massachusetts company that specializes in all types of insulation (open and closed cell spray foam, fiberglass, mineral wool, blow-in cellulose). We are fully licensed and insured and available to work in the entire New England area. We offer free estimates for both residential and commercial services. Our team is ready to work for you, no matter the size of your job. A fully trained staff with the best products in the market.
Honeydo4you Contractor
106 Stow Street
Honeydo4you Contractor
106 Stow Street
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
Painting Interior and Exterior, Tile, Kitchen and bathroom remodels and more. I am a general contractor striving to provide quality work at a fair price. I have great references and will give you a free quote. Call me for more info 5082944541
"Owner promised job would be done well and in a timely manner, and it was!"
JOANNE D on July 2023
Painting Interior and Exterior, Tile, Kitchen and bathroom remodels and more. I am a general contractor striving to provide quality work at a fair price. I have great references and will give you a free quote. Call me for more info 5082944541
"Owner promised job would be done well and in a timely manner, and it was!"
JOANNE D on July 2023
The Best Insulation Services Inc
86 Randall St
The Best Insulation Services Inc
86 Randall St
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Foam Insulation, Fiberglass, Roxul, Cellulose...
"The service lasted over the course of several months due to the seasons and my building schedule. After meeting with several companies and feeling very uncomfortable getting random numbers with little or no supporting information I was referred to these folks. From the first call all were great. Met with the owner who came out, he explained the process, listened to my needs (RValue, stretch code, continuous coverage throughout) and my plans and schedule for building. They were very responsive and did the roof in the fall and the walls last week. They adjusted their schedule several times to fit mine, completed the project and cleaned up very well. The inspectors are impressed and I'm very happy with everything. I will use again and highly recommend for anyone who needs insulation to give them a call."
MICHAEL C on May 2018
Foam Insulation, Fiberglass, Roxul, Cellulose...
"The service lasted over the course of several months due to the seasons and my building schedule. After meeting with several companies and feeling very uncomfortable getting random numbers with little or no supporting information I was referred to these folks. From the first call all were great. Met with the owner who came out, he explained the process, listened to my needs (RValue, stretch code, continuous coverage throughout) and my plans and schedule for building. They were very responsive and did the roof in the fall and the walls last week. They adjusted their schedule several times to fit mine, completed the project and cleaned up very well. The inspectors are impressed and I'm very happy with everything. I will use again and highly recommend for anyone who needs insulation to give them a call."
MICHAEL C on May 2018
24/7 Insulation LLC
61 Court St
24/7 Insulation LLC
61 Court St
Free onsite estimate
24/7 Insulation, LLC is a spray foam insulation contractor serving the Whitinsville, MA area. Additional service areas - Boxford-Gloucester, Cohasset-Plymouth, Concord, Fitchburg-Leominster, Manchester-Nashua & Worcester Counties.
24/7 Insulation, LLC is a spray foam insulation contractor serving the Whitinsville, MA area. Additional service areas - Boxford-Gloucester, Cohasset-Plymouth, Concord, Fitchburg-Leominster, Manchester-Nashua & Worcester Counties.
McNamara Contracting LLC
62 WINTER ST
McNamara Contracting LLC
62 WINTER ST
Free onsite estimate
McNamara Contracting LLC is a small business that provides residential home owners with an exceptional remodeling experience.
McNamara Contracting LLC is a small business that provides residential home owners with an exceptional remodeling experience.
Mass Green Insulation
36 Finnell Dr Unit 3-5
Mass Green Insulation
36 Finnell Dr Unit 3-5
13 years of experience
Over 100 contractors working to give world class service to our customers. We work with contractors as well as directly with homeowners. Subcontracting services available. We offer financing options for qualified applicants.
Over 100 contractors working to give world class service to our customers. We work with contractors as well as directly with homeowners. Subcontracting services available. We offer financing options for qualified applicants.
Insulation questions, answered by experts
The South Lancaster, MA homeowners’ guide to insulation services
From average costs to expert advice, get all the answers you need to get your job done.
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you.
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.
How much does a radiant barrier cost? Our guide breaks down prices by type of barrier and size of your attic space.
Insulation does more than keep your house warm in the winter and cool in the summer. Consider these factors when deciding to insulate your interior walls.
The best insulation for your basement depends on the insulation location, budget, and climate. Here’s what you need to know about insulation for basements.
Your attic insulation removal cost will vary based on multiple factors, including why you're removing it and how easy it is to complete the task.
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