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Attic insulation installers in Randolph

Avatar for Acorn Home Improvements Inc

Acorn Home Improvements Inc

622 Rte 10
4.63(
144
)
•Approved Pro

Acorn Home Improvements Inc

622 Rte 10
4.63(
144
)
•Approved Pro
Customers say: Quality work
570 local quotes requested
39 years of experience

We are local, family owned home improvement company specializing in wood and vinyl replacement windows, vinyl siding, roofing and blown-in cellulose insulation. We are fully licensed and insured. We offer free in home consultations and estimates, with the use of thermal-imaging technology. We have been serving the community for 30 years, with a reputation of delivery high quality products at a great value. Additional email: Info@AcornHomeImprovements.com.

"Acorn was great. As a first time homeowner, I appreciated the recommendations they made for replacing the old insulation in our attic and getting the largest bang for our buck. At the same time, they didn't try to upsell us on things other contractors recommended. Overall, the price was competitive and the work quality was high."

Sam R on December 2024

We are local, family owned home improvement company specializing in wood and vinyl replacement windows, vinyl siding, roofing and blown-in cellulose insulation. We are fully licensed and insured. We offer free in home consultations and estimates, with the use of thermal-imaging technology. We have been serving the community for 30 years, with a reputation of delivery high quality products at a great value. Additional email: Info@AcornHomeImprovements.com.

"Acorn was great. As a first time homeowner, I appreciated the recommendations they made for replacing the old insulation in our attic and getting the largest bang for our buck. At the same time, they didn't try to upsell us on things other contractors recommended. Overall, the price was competitive and the work quality was high."

Sam R on December 2024

Avatar for Alessandra Floors

Alessandra Floors

3125 State Route 10
4.80(
20
)
•Approved Pro

Alessandra Floors

3125 State Route 10
4.80(
20
)
•Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
62 local quotes requested

Since 2009, we have been specializing in the sales, installation, services, and repairs of flooring of all kinds for residential and commercial properties. Flooring options ranging from hardwood, vinyl, and carpet, to flooring services like sanding, refinishing, and re-stretching, to everything in between! We carry only the best name brand materials and provide top quality installations. We guarantee your satisfaction and we won’t leave until the job is done right. Our level of service, competitive prices, and overall value are why our loyal customers keep coming back to us over our competitors! Check out ALL of our services offered below and call or click to schedule a free estimate today! PLEASE NOTE THAT OUR SHOWROOM IS BY APPOINTMENT ONLY!

"Tony was great. Returned calls in a timely manner and answered any questioned we had. Very professional. The crew was very efficient and left no mess behind."

Cynthia E on January 2024

Since 2009, we have been specializing in the sales, installation, services, and repairs of flooring of all kinds for residential and commercial properties. Flooring options ranging from hardwood, vinyl, and carpet, to flooring services like sanding, refinishing, and re-stretching, to everything in between! We carry only the best name brand materials and provide top quality installations. We guarantee your satisfaction and we won’t leave until the job is done right. Our level of service, competitive prices, and overall value are why our loyal customers keep coming back to us over our competitors! Check out ALL of our services offered below and call or click to schedule a free estimate today! PLEASE NOTE THAT OUR SHOWROOM IS BY APPOINTMENT ONLY!

"Tony was great. Returned calls in a timely manner and answered any questioned we had. Very professional. The crew was very efficient and left no mess behind."

Cynthia E on January 2024

Avatar for AVA flooring professionals LLC

AVA flooring professionals LLC

25 Princeton Ave
5.00(
14
)
•Approved Pro

AVA flooring professionals LLC

25 Princeton Ave
5.00(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
77 local quotes requested

We are a family owned business that specializes in all your hardwood flooring needs. Our services range from repair, rehabilitation, maintenance, and installations. We are fully licensed and insured. Our goal is to provide a unique and smooth experience to make sure that our customers are happy.

"Fantastic! Alejandro and Ryan did a beautiful job installing our vinyl flooring over underlayment in our office. I highly recommend AVA Flooring 100% We asked them to return to install vinyl click flooring over the tile in our kitchen as well. Excellent work and fair pricing for both jobs."

Gregg M on February 2025

We are a family owned business that specializes in all your hardwood flooring needs. Our services range from repair, rehabilitation, maintenance, and installations. We are fully licensed and insured. Our goal is to provide a unique and smooth experience to make sure that our customers are happy.

"Fantastic! Alejandro and Ryan did a beautiful job installing our vinyl flooring over underlayment in our office. I highly recommend AVA Flooring 100% We asked them to return to install vinyl click flooring over the tile in our kitchen as well. Excellent work and fair pricing for both jobs."

Gregg M on February 2025

Avatar for Jersey State Insulations

Jersey State Insulations

5.00(
8
)
•Approved Pro

Jersey State Insulations

5.00(
8
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
49 local quotes requested

Jersey State provides insulations such as: closed/open cell insulation, blown in insulation, sound and firestop insulation. We also retrofit houses for green and comfort energy. Family owned and operated. Business experience 15 years plus

"I recently hired Sebastian and his company to install new fiberglass insulation and Densepack in my attic. I found them to be extremely professional. They did the work as quoted, cleaned up after they were done and took all the trash away. I would highly recommend them."

Gail S on July 2025

Jersey State provides insulations such as: closed/open cell insulation, blown in insulation, sound and firestop insulation. We also retrofit houses for green and comfort energy. Family owned and operated. Business experience 15 years plus

"I recently hired Sebastian and his company to install new fiberglass insulation and Densepack in my attic. I found them to be extremely professional. They did the work as quoted, cleaned up after they were done and took all the trash away. I would highly recommend them."

Gail S on July 2025

Avatar for Monk's Home Improvements

Monk's Home Improvements

1095 Mount Kemble Ave
4.73(
577
)
•Approved Pro

Monk's Home Improvements

1095 Mount Kemble Ave
4.73(
577
)
•Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
1414 local quotes requested

Along with the Monk's Kitchen & Bath Design Studio, we are a full-service home improvement provider. Monk's will help you plan, design, and purchase everything you need for a remodel. Then our expert craftsmen will install everything and our painters will come and complete the job.

"We had a great experience working with Monk's! we wanted to build an accessible deck that would allow my wife - who uses a wheelchair - to have better access to our backyard. Not only did they help us design and construct a beautiful deck, but they also helped us obtain the permits required."

Sam M on September 2025

Along with the Monk's Kitchen & Bath Design Studio, we are a full-service home improvement provider. Monk's will help you plan, design, and purchase everything you need for a remodel. Then our expert craftsmen will install everything and our painters will come and complete the job.

"We had a great experience working with Monk's! we wanted to build an accessible deck that would allow my wife - who uses a wheelchair - to have better access to our backyard. Not only did they help us design and construct a beautiful deck, but they also helped us obtain the permits required."

Sam M on September 2025

Avatar for Classic Hardwood Floors LLC

Classic Hardwood Floors LLC

Alicia Ave
4.81(
27
)
•Approved Pro

Classic Hardwood Floors LLC

Alicia Ave
4.81(
27
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
575 local quotes requested

With over 16 years experience in all types of flooring you will get better service and excellent quality with us. We specialize in Hardwood, Laminate, Ceramic, Vinyl, Pre-Finished and Unfinished Flooring, and we can can do custom stain colors. We strive to take care of all your needs from start to finish and you will deal with the same person from beginning to end of the project. Our goal is to make you a happy and satisfied customer! Call today for a free estimate!

"Perfectly. They were quick, professional, and did a fantastic job."

Tyler D on June 2025

With over 16 years experience in all types of flooring you will get better service and excellent quality with us. We specialize in Hardwood, Laminate, Ceramic, Vinyl, Pre-Finished and Unfinished Flooring, and we can can do custom stain colors. We strive to take care of all your needs from start to finish and you will deal with the same person from beginning to end of the project. Our goal is to make you a happy and satisfied customer! Call today for a free estimate!

"Perfectly. They were quick, professional, and did a fantastic job."

Tyler D on June 2025

Avatar for WoodLand Carpet & Floors LLC

WoodLand Carpet & Floors LLC

410 Sherman Ave
5.00(
15
)
•Approved Pro

WoodLand Carpet & Floors LLC

410 Sherman Ave
5.00(
15
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
514 local quotes requested

We perform all jobs ourselves, no subcontracting. We have no overhead which allows us to provide the customer with the best deals. We have 15 years of experience in the field, so you can rest easy knowing the job will be completed to specs and to the highest quality possible. Our goal is to ensure our customers are happy with the end result.

"I couldn’t be happier with the service, price, and quality provided by WoodLand Carpet & Floors! From start to finish, Maynor and his team were professional and incredibly knowledgeable. The installation was flawless. The crew worked efficiently, paying close attention to every detail, and left my home spotless afterward. The quality of their work truly exceeded my expectations and the flooring looks stunning. If you’re looking for a reliable and skilled flooring company, I highly recommend Maynor and his team. Their dedication to excellence and customer satisfaction is unmatched. I will definitely be using them for future projects!"

John G on December 2024

We perform all jobs ourselves, no subcontracting. We have no overhead which allows us to provide the customer with the best deals. We have 15 years of experience in the field, so you can rest easy knowing the job will be completed to specs and to the highest quality possible. Our goal is to ensure our customers are happy with the end result.

"I couldn’t be happier with the service, price, and quality provided by WoodLand Carpet & Floors! From start to finish, Maynor and his team were professional and incredibly knowledgeable. The installation was flawless. The crew worked efficiently, paying close attention to every detail, and left my home spotless afterward. The quality of their work truly exceeded my expectations and the flooring looks stunning. If you’re looking for a reliable and skilled flooring company, I highly recommend Maynor and his team. Their dedication to excellence and customer satisfaction is unmatched. I will definitely be using them for future projects!"

John G on December 2024

Avatar for P.R. FLOORING LLC

P.R. FLOORING LLC

5.00(
16
)
•Approved Pro

P.R. FLOORING LLC

5.00(
16
)
•Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1771 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work.As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"AMAZING. Sergio and Raul and the team did a great job. The timing was perfect and the gentleman knocked it like professionnels. Thank you very much."

Eliezer V on June 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work.As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"AMAZING. Sergio and Raul and the team did a great job. The timing was perfect and the gentleman knocked it like professionnels. Thank you very much."

Eliezer V on June 2025

1 LLC

146 Fairfield Rd
4.62(
13
)

1 LLC

146 Fairfield Rd
4.62(
13
)
Customers say: Super punctual
22 years of experience

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

Defaria Hardwood Flooring Sales Installation

629 BROADWAY
No reviews yet

Defaria Hardwood Flooring Sales Installation

629 BROADWAY
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

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FAQs for attic insulation installation projects in Randolph, NJ

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 Randolph, NJ homeowners’ guide to attic insulation installations

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

See all articles