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TRUSTED BY DORCHESTER, MA HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon79
    Verified insulation services reviews

Top-Rated Insulation pros in Dorchester - Updated Nov 2026

Avatar for McLaughlin Weatherization
McLaughlin Weatherization
4.8(
39
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Dorchester, MA and surrounding areas

Approved

Free estimates

Credit card accepted

Customers say: Super punctual

"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."
Additional Photos
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Additional Photos

+1

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Clean Tech Construction, LLC
Clean Tech Construction, LLC
5.0(
13
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Dorchester, MA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

[email protected] is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Gallery
26 neighbors recently requested a quote
Recommended by81%of homeowners
Sonart Construction Corp.
2.3(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Dorchester, MA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

Avatar for Ecomax Insulation, Inc.
Ecomax Insulation, Inc.
5.0(
20
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Dorchester, MA and surrounding areas

In business since 2016

Free estimates

Small jobs welcome

"Marcio and Ecomax Insulation were always prompt to respond to the needs of our project and were accommodating to our schedule. His crew is outstanding, they did high-quality work. We were extremely satisfied with their services. We will hire them again for future projects."
Open Cell Walls
Open Cell Walls
Open Cell Walls
Open cell walss
Roof and Walls Open Cell

+8

Response time2 days
Recommended by95%of homeowners
Mass Energy Lab, Inc.
3.7(
176
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Dorchester, MA and surrounding areas

In business since 2010

Free estimates

Warranties offered

"Very professional. They upgraded our insulation and patched all areas where they had performed work. Pricier than other bids but they were concerned with the "whole" job (such as the patching) and did it right. Also provided videos and pictures of work performed when job was finished."
crawlspace/basement - marshfield, ma no insulation
Installing foam board in Marshfield MA crawlspace
 Air sealing with spray foam in crawlspace
 Installed foam insulation in crawlspace/basement
Mass Energy Lab Closed Cell Spray Foam Insulation

+7

Recommended by96%of homeowners
SAV-ON INSULATION
4.5(
6
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Dorchester, MA and surrounding areas

In business since 1969

Emergency services offered

"Roland did an excellent job. He explained the things I needed and those that I didn't. He was right on time and finished the job in the time he stated. He was very professional and knew what he was doing. If you are looking for a straight shooter without any of the sales frills (and the larger cost) then Sav-On Insulation should be your choice."
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Recommended by100%of homeowners
Avatar for HUGH'S ENERGY CONSERVATION
HUGH'S ENERGY CONSERVATION
4.4(
118
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Dorchester, MA and surrounding areas

In business since 1975

Free estimates

Credit card accepted

"We are beyond pleased with the services provided by Hughes. Their workers were exceptional. They showed up on time, were polite, explained the process as the job progressed, answered all our questions and were extremely respectful of our home. They cleaned up as they went along and were very quiet. This was not an easy job. The slant roof and small space must have made this job all the more challenging because you can't stand up straight. The guys still managed to get it done within the time frame they had committed to and never once complained. The works looks very professional and our home feels so much more comfortable than it was before we insulated."
Recommended by93%of homeowners
New Found Construction, LLC
4.2(
20
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Dorchester, MA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"We called Sean with New Found Construction and he personally came out and gave us a quote to insulate our attic and the ceiling in the unfinished part of our basement. His price was far more reasonable than other quotes we had gotten and seemed to offer a more complete job. It all came out AWESOME and we can absolutely feel a difference in temperature in the house (especially my office above the unfinished basement which used to be an icebox in the winter) and the heat kicks on a lot less. We have already planned to have him and his crew do other jobs around our house. Two thumbs way up!!"
 blown-in
 roof
 attic barrier
 old roof
 both

+16

Recommended by93%of homeowners
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Insulation FAQs, answered by experts

If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process. 

A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.

The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.

Fiberglass is considered dangerous only if your skin comes into contact with it or if you breathe in any fiberglass particles. This is because fiberglass is literally made of tiny fibers of glass that can cut your skin and your organs. While there aren’t many long-term effects, it’s still important to take all the proper safety precautions when working with fiberglass.

Most heat in a garage is lost through air leaks in windows, doors, and walls. This is especially true if the walls are uninsulated, which is common in garages. Consider insulating your garage before installing a garage heater to ensure the heat it generates isn’t wasted, making it less efficient.

The thickness of floor insulation will depend on the R-value you plan to achieve. R-value varies on the type of material as well as its thickness and density. Insulation materials with low R-values can be layered to match the value of denser materials. As long as your floor insulation is packed tightly, seals the area from drafts, and doesn’t prevent ventilation, it can be as thick (or thin) as you need.

The Dorchester, MA homeowners’ guide to insulation services

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