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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon25
    Verified insulation services reviews

Find Insulation pros in Charlestown

Avatar for Insul-Kings

Insul-Kings

50 Boston Rd
4.21(
34
)
•Approved Pro

Insul-Kings

50 Boston Rd
4.21(
34
)
•Approved Pro
Customers say: Terrific value
175 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


Avatar for McLaughlin Weatherization

McLaughlin Weatherization

12 Twin Oaks Rd
4.82(
39
)
•Approved Pro

McLaughlin Weatherization

12 Twin Oaks Rd
4.82(
39
)
•Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
121 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

"The team from McLaughlin Weatherization, who completed the work from my Mass Save Program energy audit to install insulation in my attic was AWESOME! They were a team of 3, who ensured the job got done efficiently and well. Professional, courteous and personable! I was very pleased with how they entered my home, treated my home and me while in it and when they left they even brushed up the very last of any dirt they might have brought in. I cannot rave enough about how great the experience was because I was able to work downstairs and stay out of their way but they definitely went above and beyond in my opinion! I didn't know the front door would get a package of weather stripping too. So while that was nice, the guy in charge of the team of 3 not only removed the old to install the new, the front door closes properly now! I cannot thank you enough for this small act of kindness (even if it was fixed with the new trim) because I had been so worried about my kitties getting out one day because the latch would not catch to keep the door closed. Also, the senior member leading the team demonstrated his years of experience and knowledge and explained everything to me and answered all my questions. I highly recommend this company as a partner for Mass Save and I would personally pay them for any future work needed if not covered by Mass Save."

Marissa T on February 2021

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

"The team from McLaughlin Weatherization, who completed the work from my Mass Save Program energy audit to install insulation in my attic was AWESOME! They were a team of 3, who ensured the job got done efficiently and well. Professional, courteous and personable! I was very pleased with how they entered my home, treated my home and me while in it and when they left they even brushed up the very last of any dirt they might have brought in. I cannot rave enough about how great the experience was because I was able to work downstairs and stay out of their way but they definitely went above and beyond in my opinion! I didn't know the front door would get a package of weather stripping too. So while that was nice, the guy in charge of the team of 3 not only removed the old to install the new, the front door closes properly now! I cannot thank you enough for this small act of kindness (even if it was fixed with the new trim) because I had been so worried about my kitties getting out one day because the latch would not catch to keep the door closed. Also, the senior member leading the team demonstrated his years of experience and knowledge and explained everything to me and answered all my questions. I highly recommend this company as a partner for Mass Save and I would personally pay them for any future work needed if not covered by Mass Save."

Marissa T on February 2021


4Pointenergyllc

20 Katie Dr
No reviews yet

4Pointenergyllc

20 Katie Dr
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!


Endless Energy

261 Cedar Hill Street Suite 100
4.87(
15
)

Endless Energy

261 Cedar Hill Street Suite 100
4.87(
15
)
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Endless Energy is the #1 trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts. Specializing in Furnaces, Boilers, and Heat Pumps we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation. We can help you with: *Heating Repairs, Installation, & Service *AC Repairs, Installation, & Service *Plumbing Repairs, Installation & Service *Water Heater Replacement & Service *Indoor Air Quality Solutions *Ductwork & Line Set Solutions *Electrical Panel Upgrades and Replacement *Insulation *No Cost Home Energy Assessments A Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!

"Seamless. From the moment of making the appointment with the sales rep to come out to the follow-up phone call, I could not have asked for this installation to go better at a difficult time. They listened to my concerns regarding the look on the outside of the house and the location of units inside. They assisted with all aspects of the Mass Save program making the application process easy. They took care of actual submission of the paperwork where most companies wanted to provide the info to me to then submit."

Jonathan S on July 2020

Endless Energy is the #1 trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts. Specializing in Furnaces, Boilers, and Heat Pumps we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation. We can help you with: *Heating Repairs, Installation, & Service *AC Repairs, Installation, & Service *Plumbing Repairs, Installation & Service *Water Heater Replacement & Service *Indoor Air Quality Solutions *Ductwork & Line Set Solutions *Electrical Panel Upgrades and Replacement *Insulation *No Cost Home Energy Assessments A Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!

"Seamless. From the moment of making the appointment with the sales rep to come out to the follow-up phone call, I could not have asked for this installation to go better at a difficult time. They listened to my concerns regarding the look on the outside of the house and the location of units inside. They assisted with all aspects of the Mass Save program making the application process easy. They took care of actual submission of the paperwork where most companies wanted to provide the info to me to then submit."

Jonathan S on July 2020


Strucore Construction

No reviews yet

Strucore Construction

No reviews yet
Free onsite estimate

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.


A1Maintenanceandservices

27 Monmouth Ave
No reviews yet

A1Maintenanceandservices

27 Monmouth Ave
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.



Proyelectrimecanic Soluciones Industriales S.A.S.

No reviews yet

Proyelectrimecanic Soluciones Industriales S.A.S.

No reviews yet

We carry out general electrical services in residences and shops. 12 years of experience as an electrician. Our work and service, one of the main features, is to guarantee the satisfaction of our customers.Cumplir con el tiempo acordado de la entrega de las obras.

We carry out general electrical services in residences and shops. 12 years of experience as an electrician. Our work and service, one of the main features, is to guarantee the satisfaction of our customers.Cumplir con el tiempo acordado de la entrega de las obras.


Insultech

27 Beech St 2nd Floor
No reviews yet

Insultech

27 Beech St 2nd Floor
No reviews yet
10 years of experience

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.


Comfortmax

42 Morton St
No reviews yet

Comfortmax

42 Morton St
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

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

Because of the moisture concern, open-cell foam requires a vapor barrier. The barrier protects against high humidity and moisture exposure in rooms such as basements, bathrooms, or exterior walls. It wouldn't be necessary in dry interior spaces.

The most energy-efficient windows are double—or triple-pane windows with low-emissivity (Low-E) coatings and gas fills between the panes. These windows reduce heat transfer, prevent drafts, and help maintain a consistent indoor temperature. But if replacing windows isn’t in your budget, pairing your existing windows with insulating window treatments can still make a noticeable difference in home comfort and monthly bills. 

A dehumidifier can reduce condensation on your ductwork by lowering humidity levels in the air. Condensation occurs when humid, warm air makes contact with cold ducts. A dehumidifier can help maintain your home's indoor humidity below or around 50%, minimizing moisture buildup. However, if condensation is caused by leaks, cracks, or other damage, a dehumidifier won’t solve the problem. 

Vapor barriers in attics are a bit outdated and most areas no longer recommend them for attic spaces. For vented attics, the best method is usually to install drywall and cover it with latex paint before attaching insulation fiberglass, cellulose, or foam insulation. When renovating an attic to use as a living space, a contractor can guide you on the best way to cover insulation.

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The Charlestown, MA homeowners’ guide to insulation services

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