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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon252
    Verified insulation services reviews

Find Insulation pros in Watertown

Avatar for John P. Insulation
John P. Insulation
4.7(
23
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Watertown, MA and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"I would highly recommend John P. Insulation. I got three quotes for my insulation job and they were the most professional during the estimate. They provided pictures of what they were going to do. They fully explained the job and what I should expect. The quote was fast and equal or lass than the others. On the installation day, they arrived when they said they would, covered my floors and completed the work exactly as they said they would. I had them foam seal, blow in insulation, install soffit vents and vent a bathroom fan. You will not be disappointed in the quality."
Step 1
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Attic Stair Cover build

+9

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
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 Watertown, MA and surrounding areas

Approved

Free estimates

Credit card accepted

Customers say: Super punctual

"We hired McLaughlin & Williams through the MassSave program, which had performed an energy saving audit for our house and made a clear checklist of work to be done that we could confirm with the contractors. We scheduled the job months in advance, but they were flexible when we needed to reschedule at relatively short notice. Jay and his team showed up early the first day, and clearly laid out the work they were going to do, and why. When weather and scheduling issues prevented work on the second day, they sent a double team on the third to make sure everything got done within the scheduled time. In general, the workers took good care. The exterior siding that was removed for injection was cleanly replaced, though some shingles that were already damaged or waterlogged were a little worse off. Despite all the dust that comes with blown cellulose, there were only a few traces inside. They also made sure our cats didn't get out. During the course of the job, they also found that there was already some wall insulation in one section of our house, and only charged us for the work done."
Additional Photos
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Additional Photos

+1

Response time2 days
22 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Calnan's Energy Systems Inc.
Calnan's Energy Systems Inc.
4.8(
182
)
Blown-In Insulation - Install or Upgrade

Serving Watertown, MA and surrounding areas

Approved

In business since 1980

Free estimates

Warranties offered

"I hired Rob to add insulation to my attic. He and his team were extremely professional and thorough. The work was done in a timely manner and completed as promised. I would hire him again."
Knee wall is prepped for new insulation to be installed
1st layer or 2 inch insulation board installed against the roofline after existing fiberglass is removed and knee wall vacuumed clean
After old insulation is removed, and the knee wall is air sealed, the new insulation is installed on the wall
4 inches of 2 inch insulation board installed and foamed, ready for final cap layer of 2 inch Thermax insulation board
Lastly, the Tyvek is installed over the new insulation

+21

Response time4 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Coleman Spray Foam Inc
Coleman Spray Foam Inc
5.0(
53
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Watertown, MA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"John and his team are extremely helpful and honest. I needed my ceiling insulated and they were able to fit me into their schedule quickly. John, Pedro, and Shant are professional and willing to answer any of your questions. Quality job, great price, and clean! Highly recommend."
Newton, MA
Dover, MA Basement
Newton, MA
Newton, MA
Lexington, MA

+2

Response time8 hrs
Response rate97%
Recommended by95%of homeowners
Avatar for Green Way Insulation, Inc.
Green Way Insulation, Inc.
4.0(
23
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Watertown, MA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I highly recommend Green Way. The folks from Green Way were professional and they delivered high quality work at a great price. The work involved applying foam to exposed roof deck in the attic, and applying blow-in insulation between unexposed roof deck the interior walls. I'm very pleased with the outcome."
Insulation work.
Insulation work.
Insulation work
Insulation work
Insulation work.

+9

Response time2 days
Response rate89%
49 neighbors recently requested a quote
Custom Insulation Company, Inc.
3.6(
116
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade+1 more

Serving Watertown, MA and surrounding areas

Approved

In business since 1985

Free estimates

Small jobs welcome

"Eric was very professional and punctual. He was very informative of my needs. His team was very efficient. Minor cosmetic issues were quickly resolved. Very happy with Custom Insulation Company. Highly recommended!"
Copper Gutters
Foam Insulation
Foam Insulation
Blown In Insulation
Ridgid Foam Board

+2

Response time2 days
125 neighbors recently requested a quote
Recommended by88%of homeowners
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 Watertown, 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
20 neighbors recently requested a quote
Recommended by81%of homeowners
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 Watertown, MA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"The guys who came out to my house were super friendly and professional. The left place the cleaner than they found it, and even helped me program the apps on my phone. The system works greatð Thanks Clean Tech!"
Acushnet
Acushnet
Acushnet
Acushnet
Acushnet

+1

Response time1 day
Response rate88%
30 neighbors recently requested a quote
Avatar for Adam Vaillancourt Roofing & Gutters
Adam Vaillancourt Roofing & Gutters
4.7(
78
)
Blown-In Insulation - Install or Upgrade

Serving Watertown, MA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I am VERY late in writing this review, but as I was in the Angies List site I thought I'd put this review in. I can't say enough good things about Vaillancourt Roofing. I had a leak in my roof, winter was coming on and no other roofer would call me back. As an act of humanity Adam and Dave drove down from NH to look at my roof even though they don't do repairs in my area - Carlisle, MA ( I understand they could possibly do roof replacement in my area). They came when they said they would and they found the leak quickly. The leak was from my chimney. They aren't mason's necessarily, but they put a temporary fix to the chimney, so I could rest easy until the next Spring when I could address it. They didn't charge me and were done in about an hour. I wish my roof itself needed replacement, if it did I'd all them in an instant. Just wanted to put in this review as I owe it to these great folks."
Gutter replacement Old gutters were poorly installed and improperly pitched.
New roof replacement in Jaffrey, NH with Owens Corning shingles and Platinum warranty.
Before and after photo of a house we did in Hancock NH. One of our favorite areas to work! We did this job in one day with Owens Corning shingles with a Platinum warranty. The last roof these homeowners will ever need.
Full roof replacement in Mont Vernon NH. Roof had cracked ridge cap, seal failure and was high nailed.We replace the roof in 1 day.
Response time1 day
Response rate94%
14 neighbors recently requested a quote
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Insulation questions, answered by experts

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.

It is usually possible to install insulation yourself, but it’s often better to hire an insulation professional. An experienced insulation pro can determine which type of insulation is best for your space and the R-value get the most value and comfort in your home. Certain types of insulation can cause skin, eye, and lung irritation, and a professional will have the equipment necessary to keep themselves safe and limit the effect on your indoor air quality after the installation. Certain types of insulation—like blown-in and loose-fill insulation—demand a professional for proper functionality and safe installation.

Unless your cellulose insulation is wet, moldy, or showing signs of mildew or pests, there’s no need to remove it before adding new insulation on top of it. Inspect your insulation thoroughly before adding the new insulation, and if you’re unsure how to assess the presence of mold or mildew, talk to a mold remediation specialist near you.

You can insulate an existing garage door. But while it’s a cost-effective option upfront, it may not perform as well as a garage door that comes with insulation. If you live in a colder climate—or if you plan on working in your garage and need a new door—you should purchase one with existing insulation for better efficiency. 

Don’t install insulation near water heaters, oil burners, or any other object that gets hot. Many insulation materials are fire-resistant, but not entirely fire-proof, so you should take precautions to keep hot things away from fiberglass. This is also why it is imperative to box off lighting fixtures and breaker boxes.

The Watertown, MA homeowners’ guide to insulation services

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