His service involved a complete Home Energy Audit that included an Infrared scan of the house walls, floors and ceilings that may detect defects in insulation and air sealing. Additionally, he did blower door testing of building for tightness and air infiltration. When it was ready, I received a complete digital report with infrared and digital images of findings with recommendations for repairs. His many credentials that are listed on the company web site. "},"url":"https://www.angi.com/companylist/us/ma/sudbury/infrared-diagnostic-llc-reviews-111599.htm"},"position":6},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"HomeWorks Energy","address":{"@type":"PostalAddress","addressRegion":"MA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"Lori F."},"reviewBody":"I was very dissappointed with my experience with Homeworks Energy. I told the technician that I was using him as a follow-up to some work I had done by another contractor that I was assigned to by Colonial Gas. I wanted to see if the work that was done had improved the draftiness of the house and see if he had anything more that I could do. All that Homeworks did was bad mouth the work that was done. I wouldn't have done this, I wouldn't have done that, it should have been done this way, etc etc... He even pulled out some insulation that was installed because he thought it shouldn't have been used to seal off a large draft I had between the master bedroom and the attic. If I hadn't been on my toes, he would have left without replacing the insulation. Who knows if he did something similar in the attic??? To add insult to injury, he promised to send me a written report of his findings in 2 days... 16 days later, still no report."},"url":"https://www.angi.com/companylist/us/ma/medford/homeworks-energy-reviews-2009865.htm"},"position":7},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"Paul White Plumbing & Heating","address":{"@type":"PostalAddress","addressRegion":"MA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"J F."},"reviewBody":"Arrived when he promised, worked carefully and diligently, scheduled electrician visit right on time to install new boiler controls, scheduled town inspector's visit right on time at end of job. Insulated all pipes. Cleaned up the work area perfectly. Two and a half days start to finish. This was a difficult installation with lots of piping overhead in a tight attic. He does things the right way."},"url":"https://www.angi.com/companylist/us/nh/hampstead/paul-white-plumbing-and-heating-reviews-2329471.htm"},"position":8},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"E SAVE HOME ENERGY SOLUTIONS","address":{"@type":"PostalAddress","addressRegion":"MA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"Markus J."},"reviewBody":"Gene Williams and an assistant showed up on time and then diligently went through all rooms in the house. They pointed out all the air leaks they found and took thermal photos of all problem areas in the walls with insufficient insulation. I did learn about unexpected insulation issues I was not aware off. While going through the rooms, they gave me instructions for how to fix some of the issues myself and answered any questions I had. They also made suggestions what the most worthwhile energy efficiency improvements would be. At the end of the audit, I was very pleased with the time they took to check on everything and answer my questions. However, the followup was very disappointing. Gene came by in person (much later than promised) to hand me the audit report and discuss work they could be doing for me to improve attic insulation (they have an associated contracting company called \"Eagle Contracting\"). There were print quality issues with the report and Gene promised to send me a copy in email. This never happened. He did not bring along the thermal images as promised. An associate of his who came by later to look at the roof also did not bring the photos as promised. A reminder email to Gene received no response. A phone call to his associate ended with a promise of sending me the photos. To this day (mid May) I have not received either the photos or the report in electronic form."},"url":"https://www.angi.com/companylist/us/ma/stoneham/e-save-home-energy-solutions-reviews-2072756.htm"},"position":9},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"ALEXANDER INSULATION","address":{"@type":"PostalAddress","addressRegion":"MA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"Sara G."},"reviewBody":"Glenn Alexander was very professional and responsive from the time of our first call for an estimate. He gave us an estimate quickly and we were able to schedule the work just as fast. He and his associate were very professional. They did an excellent job protecting the house from dirt, etc., and did a thorough job of cleaning up when they were done. My toddler and I were at home the whole time and did not feel displaced in the least bit. We were pleased and highly recommend Alexander for an insulation job. Not to mention, we are \"thrilled\" about the difference our newly insulated attic makes to the warmth/feel of our house."},"url":"https://www.angi.com/companylist/us/ma/reading/alexander-insulation-reviews-138222.htm"},"position":10}]}
Insulation Service reviews from real Angi homeowners in Andover, MA
Last update on October 15, 2025
Judy C.
5.0
11/2024
They removed the old insulation from my garage and put in new fiberglass insulation, paper back insulation. They also added all new strapping to support the insulation.
Dan M.
5.0
03/2021
Scott is a wealth of information, completely honest, and very experienced. He should be the first person you call to discuss your insulation needs.
Clifford B.
5.0
08/2017
Great job. An area of the house that needed insulation was addressed.
Remi M.
5.0
02/2017
Thanks to Mike my attic finally was insulated. MassSave, after having several contractors come and look at the work over a period of 2 years decided they could not do the work. After that I called Mike and he came immediately, He discussed the options with me and agreed that the way MassSave...
Myra P.
5.0
05/2016
I called The Bee Hunter on Sunday. We made an appointment for Tuesday late morning. He called on Tuesday morning to tell me the exact time he would be coming, and arrived at that time. The Bee Hunter came. He looked in the attic & around the house inside & out. He found no bees or any...
Clifford B.
5.0
02/2015
As others have mentioned with their reviews, Fleming Lund from Infrared Diagnostic does a great job and deserves the highest rating that is available. His service involved a complete Home Energy Audit that included an Infrared scan of the house walls, floors and ceilings that may detect...
Lori F.
3.0
06/2011
I was very dissappointed with my experience with Homeworks Energy. I told the technician that I was using him as a follow-up to some work I had done by another contractor that I was assigned to by Colonial Gas. I wanted to see if the work that was done had improved the draftiness of the house...
J F.
5.0
02/2010
Arrived when he promised, worked carefully and diligently, scheduled electrician visit right on time to install new boiler controls, scheduled town inspector's visit right on time at end of job. Insulated all pipes. Cleaned up the work area perfectly. Two and a half days start to finish. ...
Glenn Alexander was very professional and responsive from the time of our first call for an estimate. He gave us an estimate quickly and we were able to schedule the work just as fast. He and his associate were very professional. They did an excellent job protecting the house from dirt, etc.,...
SPRAY FOAM, BATT, AND BLOWN-IN INSULATION SPECIALISTS. As a family-owned and operated Home Solutions Co. for over 16 years, we provide expert services for all phases of spray foam insulation. And we are specialized in all insulation services, we built our reputation from the ground up. We provide a high standard of workmanship and services on all jobs and settle for nothing less than the best. Home Solutions Company is fully insured for your protection.
"Very professional company. Their work was excellent, and they were very pleasant to work with. I would highly recommend this company."
Dyana S on May 2025
SPRAY FOAM, BATT, AND BLOWN-IN INSULATION SPECIALISTS. As a family-owned and operated Home Solutions Co. for over 16 years, we provide expert services for all phases of spray foam insulation. And we are specialized in all insulation services, we built our reputation from the ground up. We provide a high standard of workmanship and services on all jobs and settle for nothing less than the best. Home Solutions Company is fully insured for your protection.
"Very professional company. Their work was excellent, and they were very pleasant to work with. I would highly recommend this company."
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."
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."
** 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.
"Rob and his team are the very best! Over many years they've insulated a small room in our basement that used to have an oil tank, now used for a wine cellar. More recently, helped with our storm doors, winter and summer panels. And in 2020 new insulation blown in from roof down through our full basement, 4 levels. Our 1893 boarding house is now tight and sound. The gas company earlier in Jan. 2021 sent, along with our bill, a rating that we are 14% below "your most efficient neighbors" (100 in surrounding area) for gas usage. Our toilet no longer freezes in cold weather. You will not go wrong with Calnan's Energy Systems. They come on time, work hard, and were always masked. Professionals and all very nice guys. Mike and Jane, Belmont MA"
Michael C on January 2021
** 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.
"Rob and his team are the very best! Over many years they've insulated a small room in our basement that used to have an oil tank, now used for a wine cellar. More recently, helped with our storm doors, winter and summer panels. And in 2020 new insulation blown in from roof down through our full basement, 4 levels. Our 1893 boarding house is now tight and sound. The gas company earlier in Jan. 2021 sent, along with our bill, a rating that we are 14% below "your most efficient neighbors" (100 in surrounding area) for gas usage. Our toilet no longer freezes in cold weather. You will not go wrong with Calnan's Energy Systems. They come on time, work hard, and were always masked. Professionals and all very nice guys. Mike and Jane, Belmont MA"
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 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."
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.
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.
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
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Insulation questions, answered by experts
Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved.
Drywall insulation costs around $1,800, on average, but prices can range from $500 to $4,500, depending on a few different factors. The following things are important considerations to make when pricing out your insulation project:
Square footage of insulation
Type of insulation
Climate in your area and the insulation R-value required
Whether or not your walls are already finished
Accessibility of the area
Whether or not you need old insulation removed first
When it comes to window coverings, cellular shades are typically known as the most energy-efficient option. Cellular shades are also known as honeycomb shades. They are made of a soft fabric and take the form of “honeycomb” cells. These cell pockets trap air in and around your windows, providing insulation.
Whether you should remove old insulation before blowing in new insulation depends on your particular situation. Fiberglass insulation attracts insects and mold over time, so if it has been decades since your last insulation upgrade, consider removing the old materials before placing the new ones. However, most types resist mold, insects, and mildew, so once you get the go-ahead from your contractor that your space is free from all three, feel free to install the new insulation directly on top of the pre-existing materials.
Not necessarily. A higher R-value simply means that the insulation has a higher heat resistance and performs better in terms of how much heat passes through the material. This can be better for some homes, or it can be too high of an R-value for other homes. Again, your climate zone determines whether the insulation is better for your home.
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The Andover, MA homeowners’ guide to insulation services
From average costs to expert advice, get all the answers you need to get your job done.
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.
Learn about non fiberglass insulation alternatives, including cellulose, soy, wool, blown-in, spray foam, cotton insulations, radiant barriers, and new materials.
How much does attic insulation help with temperature regulation? As long as it’s properly installed, it can affect your home’s temperature by several degrees.