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TRUSTED BY WILLIAMSPORT, IN HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon10
    Verified insulation services reviews

Top-Rated Insulation pros in Williamsport - Updated Nov 2026

Avatar for USA Insulation of Indianapolis
USA Insulation of Indianapolis
4.0(
73
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Williamsport, IN and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"We contacted Angie’s List for recommendations for Blow-in Insulation to refresh older insulation in our attic. Three companies we recommended to us. Two phoned the next day. I never heard from the third. I told both I was gathering information and would call to schedule an estimate. I called and scheduled two companies, including USA Insulation, to come make an estimate. One company called one minute before scheduled and wanted to re-schedule. Chris from USA was on time. We were pleased with his offer and accepted. He scheduled the installation for the next day. William and his helper arrived, set everything up, and went to work. I checked regularly and photographed the attic. When they were through, they thoroughly cleaned the area. We were quite pleased. Shortly after completion, Michael, a company inspector, arrived to check the work. I would give the company an A+."
Recommended by81%of homeowners
Avatar for The Home Improvement Company Inc
The Home Improvement Company Inc
4.6(
118
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Williamsport, IN and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"Our brick ranch house was in need of TLC on the old fiber board siding, which my wife and I have painted four times ourselves. We wanted to make the exterior maintenance free with a good quality vinyl siding. We contacted five separate companies, four of which were listed in Angie’s list, to get estimates. We chose The Home Improvement Co. They were neither the highest nor the lowest estimate. We based our decision on the reviews in Angie’s list, pictures of the work that had been accomplished on other jobs, and Matt’s straight forward honest presentation. Matt convinced us that one of the most important details of this work is an experienced crew that knows how to work with the material. We had chosen the insulated backed vinyl siding. The crew (Kevin and Rueben) and Matt arrived Friday and started the demolition on the west side of the house. We were having all the old siding removed and replaced with new board, moisture barrier, and the vinyl siding. They completed that side including cleanup in one day. The whole job was completed by the following Friday. The crew was great. They were friendly and professional, and they worked well together as a team. They answered any question we had and honored any request we made. They also wrapped all the windows and doors with aluminum coil. They transformed the exterior of our home. We are completely satisfied. We comment to each other every time we pull into the driveway how good our home looks now. We still plan on replacement windows and a new back door. The Home Improvement Co. will be first on our list for consideration. Thank you, Matt, Kevin, and Rueben, for a job well done."
Pella Sliding French
Before
After
Before
After

+16

Recommended by93%of homeowners
Avatar for American Basement Solutions
American Basement Solutions
4.3(
46
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Williamsport, IN and surrounding areas

In business since 1992

Credit card accepted

"It was a small job. They sealed the vents to the crawlspace, then, since there was already solid insulation panels on the walls, put a vapor/moisture barrier, in the form of a tarp, 4 feet wide and as long needed, completely around the crawlspace. It was then sealed to the walls with "nails" and adhesive. This seals the wood frame of the house from the 'Outside", the ground, which is the floor of the crawlspace. A 20 mil thick, quite heavy, "floor" was installed, also in the form of a tarp, It went up the walls about 3 feet and was taped to the 'tarp" on the walls, using a tape made for this application. The piers were wrapped with the same stuff and taped to seal the inside from the outside. the "floor" is also a vapor/moisture barrier, but, heavy enough to walk on if needed. This basically makes the crawlspace another room, rather than the outside. Our house is one year old and was already getting mold on the floor joists. Since the air in the crawlspace will now be heated in the winter and cooled in the summer, just like the rest of the house, the mold and cold (52 degrees) floors we experienced last winter will hopefully be eliminated. We shall see when dumb winter gets here."
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Recommended by85%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Williamsport, IN and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
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+2

Recommended by65%of homeowners
Avatar for Elite Stucco & EIFS Solutions
Elite Stucco & EIFS Solutions
4.1(
18
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Williamsport, IN and surrounding areas

In business since 2005

Free estimates

Emergency services offered

We want to keep our customers safe, we can come out and do a FREE estimate and the customer does not need to come meet us outside. We will then send the estimate via email. WE FOLLOW SAFE DISTANCING PRACTICES Call us at 317-413-6654 Specialising in Commercial and Residential Exterior Repair, Restoration and installation of traditional Stucco, Synthetic Stucco and EIFS, waterproofing, Painting exterior, Luxury limestone Fireplaces and now Epoxy Flooring.

After restoration and Limestone finish
Before restoration
After restoration and limestone finish
Before restoration
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+222

Recommended by100%of homeowners
Avatar for Michaels More Than Just A Handyman Services
Michaels More Than Just A Handyman Services
4.9(
11
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Williamsport, IN and surrounding areas

In business since 2016

No matter what you need done I'm the one that can do it all! Years of hands on experience with just about everything from you family's home to mechanical work to you automobiles! There is no job to small and every task performed is backed with a 1 year warranty! I like to come up with an agreement with the customer on a price. When I start a job I finish it before starting anything else. I have let homeowners make payments before the labor is done for bigger jobs like a new roof. I like to help people out by not charging crazy prices. I'm your right hand hangman honest and reliable.

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+62

Recommended by100%of homeowners
Illini Home Improvements, Inc.
4.8(
2
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallSpray Foam Insulation - Install

Serving Williamsport, IN and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Excellent, family-run business. I called on Monday afternoon about adding insulation and the job was *completed* within 48 hours. The estimator (company co-owner) recommended reasonable solutions and did not try to "sell" me on things I didn't need. The installers were very courteous, showed up early, cleaned up well, and even put my stuff they had to move right back where they found it. I wish I called them years ago. Very pleased with this job and company."
Response time4 days
Recommended by100%of homeowners
Showing 1-10 of 21
Insulation FAQs, answered by experts

If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install blown-in insulation. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than $100. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.

If you plan to heat or cool your garage, you’ll need to insulate the garage ceiling. Insulating your garage ceiling will make your garage much more energy efficient and save on heating and cooling costs. Not only does insulation make your garage more energy efficient, it helps reduce noise and can extend the life of your garage roof. You can use fiberglass, cellulose, mineral wool, or spray foam insulation for this project.

You’ve likely heard the saying “heat rises”—well, it’s true! This is why it is critical to properly insulate your attic and protect yourself from chilly winter nights. During summer, your attic insulation will also protect against excessive heat gain radiating through the ceiling into the rest of your home below.

For standard 2x4 walls, the ideal insulation has an R-value between R-13 and R-15. This level of insulation, typically around 3.5 inches thick, fits well within the wall cavity. Common options include fiberglass batts and spray foam. The best choice for your home can depend on your climate; use R-value maps, like those from Energy Star, to determine the recommended level for your region. For colder climates, you might also consider adding exterior insulation for greater efficiency. Always check with your local building codes to ensure you meet any required standards.

Excluding carpet, strand-woven bamboo provides excellent underfoot heat. Laminate flooring is also good for insulation and preventing cold feet in the winter. Bamboo tends to work better in climates that have more consistent temperatures, while laminate does a better job at insulating floors in homes that experience more extreme temperature changes, such as the deciduous climates of the northeastern U.S.

The Williamsport, IN homeowners’ guide to insulation services

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