Top-rated attic insulation installers.

Get matched with top attic insulation installers in Norwalk, CT

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Attic insulation installers in Norwalk

Avatar for 1 LLC

1 LLC

4.75(
12
)

1 LLC

4.75(
12
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

Plumbing, electrical, heating, air conditioning, and hot water heaters. 1 LLC has been in business since 2003

"Super easy & got the job done very quick. Nick was very responsive and easy to work with (and actually suggested I pursue a cheaper alternative that I initially asked for, which never happens). Strongly recommend and would use again!"

Jason S on June 2021

Plumbing, electrical, heating, air conditioning, and hot water heaters. 1 LLC has been in business since 2003

"Super easy & got the job done very quick. Nick was very responsive and easy to work with (and actually suggested I pursue a cheaper alternative that I initially asked for, which never happens). Strongly recommend and would use again!"

Jason S on June 2021


BDK Construction LLC.

No reviews yet

BDK Construction LLC.

No reviews yet
19 years of experience

Growing construction company able to complete all phases of new and old construction

Growing construction company able to complete all phases of new and old construction


Defaria Hardwood Flooring Sales Installation

No reviews yet

Defaria Hardwood Flooring Sales Installation

No reviews yet
15 years of experience

Distributors of Hardwood Flooring and Supplies to the Flooring Industry

Distributors of Hardwood Flooring and Supplies to the Flooring Industry


D BROTHERS

No reviews yet

D BROTHERS

No reviews yet
33 years of experience

As a handyman, Oscar will offer a wide range of home repair services. The services are generally fairly minor tasks, if the problem becomes major a contractor is best suited to solve the difficulty. Handy Man Oscar will offer the value-added feature to pre-screen a contractor when Oscar is unable to perform the repair. This will develop a trust bond with the customer so that when a more minor issue comes up the customer is more likely to call Oscar due to his honesty displayed earlier. Oscar offers fix-it services for: fences, decks/patios, painting, weather proofing, floors, dry wall.

As a handyman, Oscar will offer a wide range of home repair services. The services are generally fairly minor tasks, if the problem becomes major a contractor is best suited to solve the difficulty. Handy Man Oscar will offer the value-added feature to pre-screen a contractor when Oscar is unable to perform the repair. This will develop a trust bond with the customer so that when a more minor issue comes up the customer is more likely to call Oscar due to his honesty displayed earlier. Oscar offers fix-it services for: fences, decks/patios, painting, weather proofing, floors, dry wall.


Avatar for Centenario construction

Centenario construction

No reviews yet

Centenario construction

No reviews yet

my company is specialized in commercial retail and home Improvment projects with 25 years of experience in construction. We would like to offer this experience to whom need work to be done on there in a professional manner.

my company is specialized in commercial retail and home Improvment projects with 25 years of experience in construction. We would like to offer this experience to whom need work to be done on there in a professional manner.


DRUM POINT INDUSTRIES

No reviews yet

DRUM POINT INDUSTRIES

No reviews yet
39 years of experience

DRUM POINT IND . A RESIDENTIAL AND COMMERCIAL REMODELING COMPANY

DRUM POINT IND . A RESIDENTIAL AND COMMERCIAL REMODELING COMPANY


LaMonica Tile

3.00(
4
)

LaMonica Tile

3.00(
4
)
19 years of experience

Tile installation

Tile installation


New England's Exterior Doctor, LLC

1.00(
2
)

New England's Exterior Doctor, LLC

1.00(
2
)
Free onsite estimate

New England's Exterior Doctor, LLC specializes in asphalt and metal roofing, window replacement, siding, decks, gutters, kitchen remodeling, bathrooms, and additions. With over 40 years experience in the industry, warranties that are second to none, and financing for your project, The Exterior Doctor can handle all of your remodeling N.E.E.D.'s

New England's Exterior Doctor, LLC specializes in asphalt and metal roofing, window replacement, siding, decks, gutters, kitchen remodeling, bathrooms, and additions. With over 40 years experience in the industry, warranties that are second to none, and financing for your project, The Exterior Doctor can handle all of your remodeling N.E.E.D.'s


Avatar for P M Quality Painting

P M Quality Painting

4.81(
126
)

P M Quality Painting

4.81(
126
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Proudly family-owned and operated since 1997. We offer free estimates at your home or place of business and take pride in providing the highest quality service. We are on time and on budget with all projects. All work guaranteed for 3 years against normal use of materials and workmanship. We specialize in interior and exterior paint or staining. Call or e-mail us directly at: pandmqualitypainting@yahoo.com. We are licensed, bonded, insured, & Lead Certified.

"Excellent work, finished the job extremely fast without any lack of efficiency. Definitely would recommend and rehire"

Dorian D on May 2022

Proudly family-owned and operated since 1997. We offer free estimates at your home or place of business and take pride in providing the highest quality service. We are on time and on budget with all projects. All work guaranteed for 3 years against normal use of materials and workmanship. We specialize in interior and exterior paint or staining. Call or e-mail us directly at: pandmqualitypainting@yahoo.com. We are licensed, bonded, insured, & Lead Certified.

"Excellent work, finished the job extremely fast without any lack of efficiency. Definitely would recommend and rehire"

Dorian D on May 2022


Contractor Sandoval Carpentry & Painting

No reviews yet

Contractor Sandoval Carpentry & Painting

No reviews yet
23 years of experience

Our business is ran by the boss Atilano Sandoval, who is the person in charged of leading the job. Whom ever is working on any of our jobs responds to Atilano. We are perfectionist, all work done by us is completely professional and as neat as possible. You can make payments by check or cash. We do payment plans while we are getting the job done. Once the job is completely done, all payment should be made.

Our business is ran by the boss Atilano Sandoval, who is the person in charged of leading the job. Whom ever is working on any of our jobs responds to Atilano. We are perfectionist, all work done by us is completely professional and as neat as possible. You can make payments by check or cash. We do payment plans while we are getting the job done. Once the job is completely done, all payment should be made.

...
Showing 1-10 of 1001
FAQs for attic insulation installation projects in Norwalk, CT

The best attic insulation depends on where you live, the project stage, and your budget. New builds often benefit from structural insulated panels for top-tier efficiency, while homes in very warm regions can see big cooling savings with reflective insulation. Blown-in, loose-fill, and spray foam all excel at filling odd spaces in finished attics. Talk with a certified local pro to match the material to your climate, space, and wallet.

You’ll only need a licensed electrician if the project calls for moving existing wiring or adding new fixtures. For straightforward insulation jobs, your insulation installer can work around current cables. That said, never start insulating until a pro has checked any questionable wiring. If you suspect damaged or outdated circuits, book an electrician first to keep the project—and your home—safe and code-compliant.

Without air sealing, even the best insulation can underperform. Gaps let heated or cooled air leak out, forcing your HVAC system to work harder and driving up energy bills. Sealing those cracks before adding insulation locks in conditioned air, keeps moisture at bay, and helps the new material hit its full R-value. Ask your insulation pro to tackle sealing first so you enjoy consistent comfort and lower monthly costs.

Among readily available options, structural insulated panels and rigid foam boards top the charts with R-values that can reach 8.0. They’re ideal for new construction or very cold climates where maximum thermal resistance matters most. If you live in a milder zone, blown-in or loose-fill insulation may deliver plenty of performance at a lower price. Weigh the upfront cost against energy savings—and lean on a local pro’s guidance—to pick the smartest fit.

The Norwalk, CT homeowners’ guide to attic insulation installations

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