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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon155
    Verified insulation services reviews

Top-Rated Insulation pros in South Walpole - Updated Nov 2026

Avatar for McMahon Spray Foam, LLC
McMahon Spray Foam, LLC
4.6(
32
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving South Walpole, MA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Anthony and his team did an incredible job insulating our full gut remodel in Fairfield. He took the time to put together a foam package that made the most of our budget. The crew was polite, neat and efficient. They took great care to cover finished surfaces before spraying and did a thorough clean up so we could jump right into sheet-rocking. Highly recommended for quality of work, constant communication and value!"
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Open Cell Spray Foam

+5

Response time1 day
139 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Complete Home Comfort
Complete Home Comfort
5.0(
9
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving South Walpole, MA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

We pride our company on reliability, great communication,\nintegrity, and quality work. We are experts in our trade and will do our best\nto keep you as educated as we can on your particular task or project. We look\nforward to earning your business! We partner with utility-sponsored programs like Mass Save® Home Energy Services and Rhode Island Energy's EnergyWise Home Energy Services programs.\n

Basement Sills
Crawlspace Walls
Crawlspace Sills
Attic Floor
Attic Floor

+4

22 neighbors recently requested a quote
Peter Finnerty
4.1(
15
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving South Walpole, MA and surrounding areas

Approved

In business since 2009

Free estimates

Offers commercial services

"Peter was extremely flexible on when the work was to be done. He "listened" when I spoke about what I wanted done and he made sure I was happy with every step of the job. I wish all contractors were this attentive! I would recommend Peter to anyone looking to improve their homes insulation."
Response time10 mins
10 neighbors recently requested a quote
Recommended by100%of homeowners
Custom Insulation Company, Inc.
3.6(
117
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving South Walpole, MA and surrounding areas

Approved

In business since 1985

Free estimates

Small jobs welcome

"We have established ourselves as the premier insulation contractor in the region. Our team of expert spray foam insulation installers is dedicated to enhancing your home is energy efficiency and comfort. As a professional spray foam insulation company, we understand the importance of quality insulation in maintaining a comfortable living environment while reducing energy costs. Our extensive experience in the industry allows us to offer a wide range of insulation services, including residential spray foam insulation and other advanced insulation solutions. We stay up-to-date with the latest spray foam insulation systems to ensure our clients receive the most effective and efficient insulation options."
Copper Gutters
Foam Insulation
Foam Insulation
Blown In Insulation
Ridgid Foam Board

+2

Response time3 days
147 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 South Walpole, 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 South Walpole, 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 On Time Insulation Services, Inc.
On Time Insulation Services, Inc.
4.7(
25
)
Spray Foam Insulation - Install

Serving South Walpole, MA and surrounding areas

In business since 2016

Free estimates

Offers commercial services

"They came on time and the insulation looks well done. Didn't do a great job of cleanup - some old insulation around on the ground. They weren't prepared for the steep driveway and didn't have long enough tubing, so they had to improvise by using the neighbors driveway. Would be good for them to enhance their capabilities there."
Response time2 days
Response rate93%
Recommended by100%of homeowners
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Insulation FAQs, answered by experts

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

Yes, insulating hot water pipes helps your system run more efficiently. This is especially true in basements in colder climates, where cold air likes to settle in. There are a few ways to insulate water pipes (foam is common) to keep hot water hot, reducing the need for your water heater to constantly heat the water in the tank or your circulator to kick on more than necessary.

Yes, you should insulate your copper pipes to help regulate their temperature. Well-insulated copper pipes will be protected from freezing and can conserve energy by keeping hot water warm for longer. Foam rubber insulation tubes are the best pipe insulation to prevent freezing since they fit tightly around the pipes while still maintaining some flexibility.

R-value stands for resistance value and is a number assigned to insulation that states how good the insulation is at heat transference (insulation). The R-value of injection foam is around 4 which homeowners will be happy to know is actually quite good. Another benefit of injection foam versus fiberglass foam is that the colder it gets, the more injection foam retains its resistance properties, whereas fiberglass tends to lose its efficiency in colder temperatures.

Installing insulation helps reduce energy usage, improve home comfort, and lower utility bills by maintaining stable indoor temperatures year-round.

The South Walpole, MA homeowners’ guide to insulation services

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