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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon41
    Verified insulation services reviews

Top-Rated Insulation pros in Glenville - Updated Nov 2026

Avatar for True Building Performance
True Building Performance
5.0(
13
)
Blown-In Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Glenville, NY and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: True professional

"The job went great. It took two days; the first to remove and dispose of old fiberglass batts and debris and the second to do the attic work. This included: air sealing the attic, fire protection for all recessed lighting in ceiling, fire rated barrier around chimney, constructing and insulating a new hatch for access to attic, creating proper ventilation from soffits (which had been an ongoing problem) and blowing in approximately 18 inches of new cellulose insulation. The workers (four men) arrived on time, worked extremely well as a team and where very meticulous in their clean-up. I was very impressed by their professionalism and experience in completing the job."
Additional Photos
Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Correct Energy Spray Foam
Correct Energy Spray Foam
4.6(
20
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Glenville, NY and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"What an absolute DREAM! Correct Energy is an incredible company. Knowledge, professional and efficient! I contacted a few insulation companies but the proposed methods were not through. Correct Energy and especially Ray’s knowledge and experience were above and beyond. CE came out to assess and spent a generous amt of time explaining EVERYTHING. CE came when they said they would. The crew was professional and spent a few days here. They left everything immaculate. My place is old, built in the 1940’s so many challenges came up that they handled like absolute pro’s. Their work has and will continue to save so much on energy, the difference of before and after is immediate and drastic. I can’t wait for them to come back and do my basement next! I can't say enough about this company. Pros work here!!! Hire them!!! You will not be disappointed.."
Response time3 days
Response rate100%
43 neighbors recently requested a quote
Avatar for Advanced Energy Adviser's
Advanced Energy Adviser's
4.1(
11
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Glenville, NY and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Asked for a quote on removing an old deck, replacing with a larger one. Price quoted was fair, and we accepted. We're very pleased with the final product, and the whole ordeal was hassle-free for me and my wife. Every worker involved was very professional. Communication from start to finish was excellent, and I feel the job was completed faster than we had expected. Will be using this company in the future for other projects."
Response time2 days
Recommended by90%of homeowners
Avatar for Advanced Spray Foam Inc
Advanced Spray Foam Inc
4.5(
11
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Glenville, NY and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"They got back to us very quickly, and after we agreed on the project spec's and pricing, they got right to work. Our old porch was down and our new one was up in a little over a week. These guys were AMAZING!!! SO professional very neat. They were able to offer us financing options, which was a nicr. I would recommend these guys to anyone looking to have some home improvements done! We will definitely be using them again!!!"
Recommended by100%of homeowners
The Foam Guy
5.0(
5
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Glenville, NY and surrounding areas

In business since 2009

Free estimates

Small jobs welcome

"From the moment we met nick we felt comfortable. After my gf got taken for money from a contractor we were a little hesitant on trusting anyone again.. Nick gave us a quote for the job that we were very happy with. And insured us we would be very happy. And wow were we, nicks crew was amazing , friendly and cleaned up everything when do e. Can't say enough about nick and his team. This is how a business is supposed to be run. Don't even bother calling anyone else. They did an amazing job on our building and more importantly? Welcomed us like we were family during the process... 100 thumbs up. Chris and Christina"
Response time5 days
Recommended by100%of homeowners
Avatar for Saratoga Cellulose
Saratoga Cellulose
5.0(
2
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Glenville, NY and surrounding areas

Free estimates

Credit card accepted

"Travis and his helper did an excellent job spraying foam insulation under the floor of a 16'x16' enclosed porch. Highly recommended. My personality is to ask a lot of questions to fully understand what the contractor is going to do. Travis was very knowledgeable, personable, and fully explained the type of foam (closed cell), how thick, and the probable dripping in a tight space. The distance from the joists to the ground varied between 15 to 20 inches. A tight space for equipment, spray, and people. They put a tarp down and managed to get in there to spray the foam. Given the tight space, there was some dripping (Travis explained why this would happen when he visited to make the quote). The tarp caught that, and they did a very nice clean-up removing drips from the visible cross beams. After they were done, I had to look underneath to tell that the foam was in place. The dripping issue was fully mitigated. I had obtained other quotes and Saratoga Cellulose & Foam was very reasonable. I believe Travis gets the foam directly from the manufacturer rather than at a local home improvement store."
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Recommended by100%of homeowners
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Insulation FAQs, answered by experts

It depends on your needs and preferences, though many homeowners think it is worth it. Not only is blown-in insulation easy to install, but it is highly efficient with thermal regulation. Most types are mold-resistant, flame-resistant, insect-resistant, and, most importantly, completely safe.

It is possible to insulate your walls without removing drywall, but it’s not a good idea to attempt the work yourself. A professional can use blown-in insulation or spray foam insulation to fill wall voids without opening up the walls, and the option they use typically depends on your climate and whether or not there’s insulation in your wall already that can remain in place. Spray foam insulation costs more and isn’t always a viable option, but it’s a better insulator. Call in an expert to help decide which is right for you.

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.

Hanging a thick blanket over your windows will help to keep the heat inside, but only a little. Covering the glass will also prevent the sunlight from getting in, which might actually decrease the efficiency of your window overall. If you get to the point where you’re hanging blankets over your window to keep warm, call in an expert to seal around your windows to prevent warm air from escaping. They may also recommend replacing old windows that aren’t as insulative as newer window technology. Sealing a window isn’t terribly expensive and can make a big difference.

Depending on the item, several different materials are beneficial for long-term storage. Bubble wrap and plastic wrap help ensure delicate ceramics or furniture are safe and secure. High-quality moving boxes made of durable materials like plastic also help ensure the longevity of your storage, as cardboard will degrade faster over time.

The Glenville, NY homeowners’ guide to insulation services

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