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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

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

You won’t find anything inside a cupola on a house because it’s hollow (think of an upside-down cup), allowing air to ventilate out of a roof via vents and light to come in via windows. They also usually have a base, vents around the middle (usually louvers), and a pointed cap at the top.

If the temperature outside is around 90 or 100 degrees with the sun beating on your home’s roof, it’s common for the attic temperature to reach 150 degrees or more. This excessive heat shows the importance of having a radiant barrier in place along with insulation. The radiant barrier reflects the heat entering the attic back upward, keeping your home’s temperature more consistent.

The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around $0.75 per linear foot, with the width matching the gaps between standard studs perfectly. However, it’s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn’t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.

Energy-efficient homes generally have higher appraisals and appeal to buyers.

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.