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TRUSTED BY WILLIAMSVILLE, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon91
    Verified insulation services reviews

Top-Rated Insulation pros in Williamsville - Updated Nov 2026

Avatar for USA Insulation of Buffalo
USA Insulation of Buffalo
4.4(
15
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Williamsville, NY and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I hired USA insulation to insulate my home, and I could not have been happier. From the first time I called, and spoke to Liz to get a quote, to the finished product. I was nothing but satisfied. All my questions were answered. They were efficient, clean, and professional!"
Additional Photos
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Additional Photos

+3

Response time12 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Home Performance Professionals, Inc.
Home Performance Professionals, Inc.
4.4(
32
)
Blown-In Insulation - Install or Upgrade

Serving Williamsville, NY and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

"Tim, Taylor and Larry were absolutely wonderful. They were always on time for this 2-day job, and cleaned everything up after their work was done. They explained what they were going to do, answered all my questions, and did a thorough job. I definitely recommend Home Performance Professionals!!! Mark & Sharon P. Niagara Falls, NY"
Blown in cellulose insulation
Martin, owner of HPP
cement siding
Attic insulation under floor
Attic insulation under floor

+3

Response time2 days
26 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Primetime Energy Services
Primetime Energy Services
4.5(
30
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or Upgrade

Serving Williamsville, NY and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"The price was $2,575 lower than the same work estimate from another company. The work actually took two days. They covered the tubing outside the house with a grey covering to match my siding so it would blend in the way I requested. They listened to my concerns and answered all my questions. They gave me two options on where I wanted to choose to place the outside unit. I am very happy with the quietness of the units compared to my old window a/c's. The units are very powerful and can be adjusted any way you like. Since they're wall mounted they are space savers. Plus, they can heat too. I am happy with the work done and wish I had done it years ago. The two men installing were very professional and courteous. I will be using them again for other work, such as insulation, etc."
Additional Photos
Additional Photos
Team Photo
Insulation
Insulation

+9

58 neighbors recently requested a quote
Recommended by69%of homeowners
Angelo's Southern Tier Spray Foam
4.2(
44
)
Spray Foam Insulation - Install

Serving Williamsville, NY and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Professional. Fair price. Courteous. Punctual. Answered all of our questions & gave us good recommendations of what was needed to insulate the mudroom attached to our mobile home. I would HIGHLY recommend Ross & Tara to insulate your home or business."
Response time3 days
Recommended by84%of homeowners
Avatar for EnerGsmart Insulation, LLC
EnerGsmart Insulation, LLC
3.8(
32
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Williamsville, NY and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Bob was wonderful as the sales rep to come out and explain and answer every question that my wife and I came up with. Extremely knowledgeable. The crew that came out was courteous and clean and an excellent job of prepping areas to ensure there was little to no mess at all. I highly recommend energsmart for your insulation needs."
residential new build
commercial roofline
Roofing Foam Existing Building
Exterior of new block construction
Response time4 days
Response rate100%
Recommended by94%of homeowners
Avatar for Williamstown Construction Superior Insulation
Williamstown Construction Superior Insulation
3.5(
12
)
Spray Foam Insulation - Install

Serving Williamsville, NY and surrounding areas

Approved

In business since 1983

Free estimates

Credit card accepted

"They are excellent. as matter of fact Jim came over to my house and he found a significant problem in my roofing and for a significant amount he was able to do my roofing and insulation."
Response time1 day
Response rate90%
14 neighbors recently requested a quote
Avatar for Stellar Roofing, Inc.
Stellar Roofing, Inc.
4.5(
199
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Williamsville, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Credit card accepted

"They did a whole rebuild in one day , I had 4to 7ft of blow foam On each wall and ceiling of my attic they tore it out and put a whole New roof plus ventilation in a day! I was so impressed they were kind they even patched where my roof was leaking since my apt was a week or so out. I worked with Micheal Benaquist who was absolutely phenomenal. He made me feel safe and secure and was knowledgeable on any questions I asked. From financial options to helping me understand the roofing materials. I would recommend them to anyone. They are worth the extra few bucks!!!"
New Roofs
New Roofs
New Roofs
New Roofs
Response time1 day
385 neighbors recently requested a quote
Recommended by82%of homeowners
DB Handyman
4.9(
13
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Williamsville, NY and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

2 neighbors recently requested a quote
Recommended by23%of homeowners
Showing 1-10 of 40
Insulation FAQs, answered by experts

Doubling the insulation in your home also doubles the R-value of said insulation. In other words, by adding more insulation, you can reduce the heat loss by half. Most homes benefit from increasing insulation. Older homes, in particular tend to have less insulation as is, so doubling your insulation could drastically reduce your energy bills, keep your home more comfortable, and take the strain off your HVAC system.

Mineral wool wraps are the most affordable and effective insulation for crawl space ducts. They are easy to cut, last for a long time, and healthier for humans. Meanwhile, fiberglass wraps are cheaper but more hazardous and difficult to handle. If you do choose to use a fiberglass wrap, make sure you are wearing long sleeves and wear proper protective gear.

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.

Although the cost might seem high, winterizing your home is important for your health and the structural integrity of your home. Winterizing will keep your home warm and toasty during the cold months and prolong the life of your appliances, windows, pipes, sprinkler system, pool, and more. 

Although it’s not required, air ventilation in a finished basement can help improve the air quality, prevent moisture and mold issues, keep musty odors away, and also maintain the air quality throughout the rest of your home. Proper ventilation will help maintain the value of your investment in finishing your basement. Try basement ventilation methods like installing vents or a dehumidifier for best results.

The Williamsville, NY homeowners’ guide to insulation services

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