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Top-Rated Insulation pros in Rensselaer - Updated Nov 2026

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

Serving Rensselaer, 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 The Climate Chief, LLC
The Climate Chief, LLC
4.8(
23
)
Blown-In Insulation - Install or Upgrade

Serving Rensselaer, 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 Rensselaer, 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
)
Batt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - InstallBlown-In Insulation - Install or Upgrade+1 more

Serving Rensselaer, 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%
20 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 Rensselaer, NY and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

Locally owned and operated building insulation contractor, with a combined 25 years experience. Specializing in many different projects. Renovation, design, new construction and retro fitting in both residential and commercial applications. Using manufacturer trained and certified applicators.

Response time2 days
Recommended by90%of homeowners
SCW Construction
New to Angi
Spray Foam Insulation - Install

Serving Rensselaer, NY and surrounding areas

Approved

In business since 2010

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n \n \n

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 Rensselaer, 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
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Insulation FAQs, answered by experts

The average cost to install insulation is around $1,800, but you could pay anywhere between $500 and $4,500, depending on various factors. Some of the things that have a significant influence on your pricing include the following:

  • Size of the area 

  • Type and R-value of the insulation 

  • Whether your space is finished or unfinished

  • Accessibility of the area

  • Your geographical location

  • Amount of site preparation, especially for blown-in insulation

  • Whether or not you need old insulation removed

The amount and type of insulation your home needs depends on your location, climate, and the specific installation area (attic, walls, or floors). Your local building code will typically determine the minimum required R-value. For specific recommendations, Energy Star suggests the following R-values: homes in the Southern U.S. should have R30 to R60 in attics and R13 to R25 in floors and walls; homes in moderate climates need R38 to R60 in attics and R25 to R30 in floors and walls; and homes in northern states require R49 to R60 in attics and R25 to R30 in floors and walls.

Expect your home insulation project to take between five and 12 hours to complete on average for batts or boards and two to five hours for spray foam or blown-in insulation. It might take longer if you need to remove your home’s existing insulation, you have a higher-than-average square footage, or accessibility is limited.

Once installed, injection insulation requires little maintenance, but periodic inspections for air leaks or moisture buildup are recommended.

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 Rensselaer, NY homeowners’ guide to insulation services

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