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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon61
    Verified insulation services reviews

Find Insulation pros in Westborough

Avatar for Insul-Kings

Insul-Kings

4.23(
35
)
Approved Pro

Insul-Kings

4.23(
35
)
Approved Pro
Customers say: Terrific value
225 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.

"We got attic insulation through MassSave -- Fast, efficient, professional service. Looking forward to energy savings in the years to come."

Doyon W on November 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.

"We got attic insulation through MassSave -- Fast, efficient, professional service. Looking forward to energy savings in the years to come."

Doyon W on November 2025


Avatar for Coleman Spray Foam Inc

Coleman Spray Foam Inc

5.00(
6
)
Approved Pro

Coleman Spray Foam Inc

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 local quotes requested

Closed and Open cell spray foam for new construction and retrofit homes. Now offering SHEEPS WOOL Insulation both Blown in and Batts. Injection Foam, Fiberglass batts, Blown in Cellulose/Fiberglass, Mineral wool, Sound Attenuation, Fire caulking. Coleman Spray Foam Inc is an Irish owned and operated insulation company serving all of Massachusetts. A company that is passionate about their work and aim to build strong relationships with home owners and contractors alike to provide the best insulation solution for you.

"John and his team did an absolutely amazing job insulating our home. I feel assurance knowing he used A+ materials and everything was done right. Coleman Spray Foam is the best contracting company I've ever dealt with."

Joe M on April 2022

Closed and Open cell spray foam for new construction and retrofit homes. Now offering SHEEPS WOOL Insulation both Blown in and Batts. Injection Foam, Fiberglass batts, Blown in Cellulose/Fiberglass, Mineral wool, Sound Attenuation, Fire caulking. Coleman Spray Foam Inc is an Irish owned and operated insulation company serving all of Massachusetts. A company that is passionate about their work and aim to build strong relationships with home owners and contractors alike to provide the best insulation solution for you.

"John and his team did an absolutely amazing job insulating our home. I feel assurance knowing he used A+ materials and everything was done right. Coleman Spray Foam is the best contracting company I've ever dealt with."

Joe M on April 2022


Avatar for Eco Insulators

Eco Insulators

5.00(
9
)
Approved Pro

Eco Insulators

5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 local quotes requested

We're a leading Contractor and have served the Central Massachusetts area since 2021. We have the experience and dedication to get the job done right! Eco Insulators Specializes in spray foam, cellulose, fiberglass, and poly-iso insulation. We have experience tackling various residential, commercial, and industrial projects. Our company's guaranteed quality and customer service are 5 stars. We're fully licensed, insured, and compliant with all local, state, and federal guidelines. We now offer bathrooms, kitchens, and basement renovations. Want a new deck, or shed? We got you covered. We guarantee your satisfaction and won't leave until the job is done right. We pride ourselves on our quality work while delivering excellent customer service!

"I am very happily with the results."

Jane S on October 2023

We're a leading Contractor and have served the Central Massachusetts area since 2021. We have the experience and dedication to get the job done right! Eco Insulators Specializes in spray foam, cellulose, fiberglass, and poly-iso insulation. We have experience tackling various residential, commercial, and industrial projects. Our company's guaranteed quality and customer service are 5 stars. We're fully licensed, insured, and compliant with all local, state, and federal guidelines. We now offer bathrooms, kitchens, and basement renovations. Want a new deck, or shed? We got you covered. We guarantee your satisfaction and won't leave until the job is done right. We pride ourselves on our quality work while delivering excellent customer service!

"I am very happily with the results."

Jane S on October 2023


Avatar for Calnan's Energy Systems Inc.

Calnan's Energy Systems Inc.

4.98(
151
)
Approved Pro

Calnan's Energy Systems Inc.

4.98(
151
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
50 local quotes requested

** 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


Avatar for Wattson Home Solutions

Wattson Home Solutions

5.00(
1
)

Wattson Home Solutions

5.00(
1
)
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.


Avatar for 4Pointenergyllc

4Pointenergyllc

No reviews yet

4Pointenergyllc

No reviews yet
1 years of experience

4Point Energy LLC is a dynamic and innovative company specializing in comprehensive energy solutions for residential and commercial clients. With a commitment to sustainability and efficiency, we offer a wide range of services, including Insulation, energy audits, and smart home technology integration. Our experienced team is dedicated to helping customers reduce their energy costs while minimizing their environmental footprint. We pride ourselves on using high-quality materials and cutting-edge technology, ensuring reliable performance and customer satisfaction. At 4Point Energy, we believe in empowering our clients with the knowledge and tools they need to make informed energy choices. Whether you're looking to go green, save on utility bills, or enhance your property's energy efficiency, we are here to guide you every step of the way. Choose 4Point Energy LLC—where your energy needs meet innovative solutions!

4Point Energy LLC is a dynamic and innovative company specializing in comprehensive energy solutions for residential and commercial clients. With a commitment to sustainability and efficiency, we offer a wide range of services, including Insulation, energy audits, and smart home technology integration. Our experienced team is dedicated to helping customers reduce their energy costs while minimizing their environmental footprint. We pride ourselves on using high-quality materials and cutting-edge technology, ensuring reliable performance and customer satisfaction. At 4Point Energy, we believe in empowering our clients with the knowledge and tools they need to make informed energy choices. Whether you're looking to go green, save on utility bills, or enhance your property's energy efficiency, we are here to guide you every step of the way. Choose 4Point Energy LLC—where your energy needs meet innovative solutions!


Avatar for Strucore Construction

Strucore Construction

No reviews yet

Strucore Construction

No reviews yet

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.


Avatar for A1Maintenanceandservices

A1Maintenanceandservices

No reviews yet

A1Maintenanceandservices

No reviews yet
15 years of experience

we are a general contractor in Massachusetts. we have been constructing new homes since 2010. We focus on quality service and results. we are ready to turn your vision into reality with a dedicated team of skilled professionals and a commitment to excellence. Whether it's a residential project, commercial development, or any other construction endeavor. We have the expertise and passion to make it happen.

we are a general contractor in Massachusetts. we have been constructing new homes since 2010. We focus on quality service and results. we are ready to turn your vision into reality with a dedicated team of skilled professionals and a commitment to excellence. Whether it's a residential project, commercial development, or any other construction endeavor. We have the expertise and passion to make it happen.


Metric Innovations

No reviews yet

Metric Innovations

No reviews yet
Free onsite estimate

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


Comfortmax

No reviews yet

Comfortmax

No reviews yet
11 years of experience

We stand out from the competition with our exceptional services and commitment to customer satisfaction. Here's what sets us apart: Comprehensive Services: We offer a comprehensive range of services to meet your energy needs. Our expertise includes solar panel installations, heat pump installations, and the complete process of heat loan, insulation, and air sealing. Whether you're looking to harness solar power or optimize your heating and cooling systems, we have the solutions for you. Expert Team: Our team consists of highly skilled professionals who excel in their respective fields. With extensive experience and expertise in energy-efficient technologies, our technicians and installers are equipped to deliver top-notch results. You can trust our team to provide knowledgeable guidance and ensure the highest quality workmanship. Partnership with Mass Save: As proud partners of Mass Save, we offer exclusive benefits to our customers. We facilitate rebates for heat pump installations, helping you save on your investment while embracing sustainable energy solutions. Our partnership demonstrates our commitment to providing cost-effective and environmentally friendly options. Quality Assurance: We are dedicated to delivering quality work that exceeds your expectations. We stand behind our installations and services, offering a guarantee on all our work. From precise solar panel installations to efficient heat pump systems, we ensure that every project is completed to the highest standards. Customer Satisfaction: At our company, your satisfaction is our priority. We prioritize personalized service, effective communication, and attentive support throughout the entire process. We strive to make your experience with us seamless and enjoyable, ensuring that you are delighted with the results.

We stand out from the competition with our exceptional services and commitment to customer satisfaction. Here's what sets us apart: Comprehensive Services: We offer a comprehensive range of services to meet your energy needs. Our expertise includes solar panel installations, heat pump installations, and the complete process of heat loan, insulation, and air sealing. Whether you're looking to harness solar power or optimize your heating and cooling systems, we have the solutions for you. Expert Team: Our team consists of highly skilled professionals who excel in their respective fields. With extensive experience and expertise in energy-efficient technologies, our technicians and installers are equipped to deliver top-notch results. You can trust our team to provide knowledgeable guidance and ensure the highest quality workmanship. Partnership with Mass Save: As proud partners of Mass Save, we offer exclusive benefits to our customers. We facilitate rebates for heat pump installations, helping you save on your investment while embracing sustainable energy solutions. Our partnership demonstrates our commitment to providing cost-effective and environmentally friendly options. Quality Assurance: We are dedicated to delivering quality work that exceeds your expectations. We stand behind our installations and services, offering a guarantee on all our work. From precise solar panel installations to efficient heat pump systems, we ensure that every project is completed to the highest standards. Customer Satisfaction: At our company, your satisfaction is our priority. We prioritize personalized service, effective communication, and attentive support throughout the entire process. We strive to make your experience with us seamless and enjoyable, ensuring that you are delighted with the results.

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Insulation questions, answered by experts

Bathroom wall insulation not only keeps the area temperate, but it also reduces instances of mold, mildew, and rot. Bathrooms, after all, are havens for moisture. With this in mind, it’s absolutely worth it to insulate bathroom walls since it saves money in the long run. You won’t have to hire a pricey mold remediation service down the line. Also, insulation decreases outdoor noise and lowers energy costs.

Energy-efficient homes generally have higher appraisals and appeal to buyers.

One of the disadvantages of soffit vents is they can bleed warm air from the attic during winter, resulting in slightly higher energy bills and a colder house. There are ways to mitigate this effect—mostly just closing the vent in the fall. What’s most important is your attic is ventilated to some degree in the winter.

While you should always insulate ceilings and exterior walls, you don’t always have to insulate the interior walls of your home to maintain energy efficiency. However, there are benefits to insulating every wall, including improved soundproofing and energy efficiency throughout your home.

If the temperature outside is around 90 or 100 degrees with the sun beating on your home’s roof, it’s common for the attic temperature to reach 150 degrees or more. This excessive heat shows the importance of having a radiant barrier in place along with insulation. The radiant barrier reflects the heat entering the attic back upward, keeping your home’s temperature more consistent.

The Westborough, MA homeowners’ guide to insulation services

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

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