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  • Verified reviews icon25
    Verified insulation services reviews

Top-Rated Insulation pros in Loudonville - Updated Nov 2026

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

Serving Loudonville, NY and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: True professional

"just now True building Performance's crew did an incredible job for us. The project was to insulate our home. These guys showed up with cheerful attitudes and completed such an incredible and efficient job. From start to finish they were friendly and interacted with our family all while working in the project. The kids enjoyed watching them work. They cleaned up after themselves too which was a pleasant surprise . It was also great that we were able to get more done than we had anticipated. Originally we had elected to insulate upstairs only but we are able to completely insulate the entire house, downstairs being from the inside. They have plastic protecting their workspace from top to bottom. Joe, the lead contractor is so knowledgeable and incredibly acomodating. Paul Mendel the company's owner is the same way. A great company to do buissness with. We are just overwhelmed with gratitude and amazement at what a difference we are already noticing in the reduction of street noise from the cellulose insulation. I would Highly recommend True Building performance to anyone looking to seal air gaps and install insulation."
Additional Photos
Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for The Climate Chief, LLC
The Climate Chief, LLC
4.8(
23
)
Blown-In Insulation - Install or Upgrade

Serving Loudonville, NY and surrounding areas

Approved

In business since 1986

Free estimates

Small jobs welcome

"The team from The Climate Chief were very professional from day one. They laid out plastic sheeting to protect our recently refinished hard wood floors. Cleaned up any messes from the blown in insulation. Covered the doorway by utilizing TEVEC house wrap and tape so we would not lose much heat when the hoses were running. At the end of each day one of the employees would pick up the plastic sheeting and sweep the floors and they would pick up all the tools so not to leave a cluttered workplace inside and outside. Billy Mike, and crew were very happy and cheerful while at work. Very knowledgeable about how to seal up any of the existing open areas. They removed all the existing fiberglass insulation before replacing with 18 inches of cellulose R60. A very professional job we are very pleased to say. We noticed a warmer difference in room temperatures right away! We would strongly recommend them to others!"
Response time3 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
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 Loudonville, NY and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"Correct Energy did a great job removing the old insulation in my house and installing new spray foam insulation. The team arrived on time , were very professional, knowledgeable, nice and kept the house very clean during the installation. They completed the job on time. My attic is all clean and well insulated now. The team did a great job. I'm very satisfied with the work."
Response time3 days
Response rate100%
43 neighbors recently requested a quote
Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3.9(
438
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Loudonville, NY and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"They removed old moldy insulation, sprayed fungicide on the mold and encapsulated a crawl space. Also insulated with foam insulation around the entire basement rim joist, including the crawl space. They were on time and finished before they expected to. During the inspection, when I pointed out bubbles in the foam, they redid that section without question. Zy called after they finished to make sure I was satisfied."
Response time2 days
Response rate100%
28 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 Loudonville, 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 Foaminator Spray Foam, LLC
Foaminator Spray Foam, LLC
4.6(
18
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Loudonville, NY and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"Jason is a busy man, which made communication tough at times, but he was always polite, informative, knowledgeable, and honest. He and his crew did wonderful work, he went out of his way to accommodate a number of requests, and the price he gave me was nothing short of awesome! I would recommend him to anyone in need of insulation."
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation

+5

Response time2 days
Recommended by100%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 Loudonville, NY and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"Overall, excellent. We did encounter a few problems with the spray in wall insulation since the original sheet rock was just nailed in. A few sections bowed into the room. This is actually pretty common with old houses. The problem was quickly corrected, the walls properly secured, the insulation reinstalled (blown in) and the job completed. In modifications to a home, it is not always the problems you encounter, it is how you deal with them. Advance had the problem identified with a resolution that was completed within a day. Very pro-active!"
Recommended by100%of homeowners
The Foam Guy
5.0(
5
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Loudonville, 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
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Insulation FAQs, answered by experts

In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s license lookup tool to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.

Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together. 

Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.

The lifespan of insulation depends on the material type. Fiberglass can last between 80 and 100 years, but it is important to start checking it around the 15-year mark. Spray foam has a lifespan of up to 100 years, and mineral wool can last up to 100 years. Cellulose, an eco-friendly option, has a lifespan of 20 to 30 years.

The cost to install or upgrade insulation generally ranges from $1.50 to $4.00 per square foot. The final price depends on factors such as the type of insulation chosen, the total area to be covered (home size), and local labor costs.

If you have access to the foundation walls, adding spray foam insulation to your existing unfinished basement or crawl space is straightforward. Replacing existing insulation in your unfinished attic space is possible after removing the old insulation. However, spray foam insulating an existing wall after the drywall is in place isn’t possible unless you remove most of the drywall.

The Loudonville, NY homeowners’ guide to insulation services

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