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TRUSTED BY WILLIAMSTOWN, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon61
    Verified insulation services reviews

Find Insulation pros in Williamstown

Avatar for E S G, Inc.
E S G, Inc.
4.7(
126
)

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"I had a problem room that had little insulation. Cold in the winter. Hot in the summer. No attic access. Energy services group was able to drill large holes in the ceiling & outside wall and spray in insulation. Then plug the holes and spackle. Replaced canister lights with led ones. They explained to my wife what they were going to do before it happened. Then said what they actually were able to accomplish. Great communication. Quick to schedule. Cleaned up after themselves. A quality company"
Freshly blown insulation with Baffles installed
Insulated foundation walls
Replacing damaged duct with new insulated duct
Newly installed crawl space access door
Insulated air tight pull down stair cover

+4

Response time12 hrs
Response rate95%
1 neighbors recently requested a quote
Avatar for Brittin Built, LLC
Brittin Built, LLC
4.8(
80
)

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: Quick response

"These guys were great. I had both my attic insulation upgraded, but also my home's crawlspace re-insulated. They were very respectful of my space, explained everything they were doing and answered all of my questions. They are a hard working customer oriented team. I would not hesitated to recommend this company to anyone."
DECK REMODELS
DECK REMODELS
DECK REMODELS
DECK REMODELS
DECK REMODELS

+22

Response time1 day
Response rate89%
14 neighbors recently requested a quote
Avatar for Master Attic, LLC
Master Attic, LLC
4.8(
60
)

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Contacted Master Attic via Angi and Alex, the technician came to evaluate our attic and crawl space (2 separate spaces in our house). We heard critter noises and our upstairs was hot in the summer. The insulation was original to the ~30 year old house, so we know it's about time to get it done. Alex checked both spaces and showed us photos of problem areas. We have an estimate and Alex explained the details of the work involved. The team came within the week (we lucked out to take the spot of a cancellation), and everything was done as expected. There was a lot of work to remove old insulations, vacuum all debris, sanitize the space, seal all air gaps, install baffles, rodent proof, and install new insulation. The work was completed in around 6 hours, the spaces are now clean and tidy - quite unbelievable given how they were before. We went for the heavier insulation which is reflected in the project cost."
Crawlspace remediation, new batt insulation and moisture barrier encapsulation
Old insulation removal and replace with new batt insulation
Rodent hole on corner of roof
New Blown-in insulation
Crawlspace remediation, new insulation & moisture barrier encapsulation

+106

23 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)

Serving Williamstown, NJ and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"We are extremely satisfied with the whole process of our house being insulated. First we had the walls done, and then a couple weeks later we had our attic insulated. The crew were so nice, friendly, and knowledgeable. We are very satisfied with everything. Thank you, everyone."
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
138 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for ZZeo's Home Renovations
ZZeo's Home Renovations
4.9(
121
)

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Small jobs welcome

"Angel installed a new vinyl floor, cabinet, and sink in my laundry room. Also replaced an interior door, and did troubleshooting on a leak we were having in our sunroom. Angel stayed in touch throughout the process, arrived on time and did flawless work, we couldn’t be more pleased. Would highly recommend for any home improvement projects you may have."
Response time5 hrs
6 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Fabiano's Construction
Fabiano's Construction
4.8(
73
)

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Small jobs welcome

"Fabiano and Will went over and beyond on this project. Hiring a carpenter you have never worked with before involves a certain degree of faith. That's what I did when hiring Fabiano Construction to build a triple-tiered flower bed on my rooftop with a trellis on my Philadelphia row-home rooftop. I was not disappointed. Fabiano and Will are a great team, they are very kind and they do great work. What more could you ask for? I am having both of them come back to rebuild my grill countertop and cabinetry! I have no regrets using Fabiano Construction and I will continue to use them in the future!"
decks
decks
decks
decks
decks

+6

7 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Atticrawl, LLC
Atticrawl, LLC
4.7(
17
)

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Welcome to Atticrawl, LLC \nWe pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Attic Insulation
Attic Insulation
37 neighbors recently requested a quote
Recommended by66%of homeowners
Western Pest - Maple Shade
4.2(
6
)

Serving Williamstown, NJ and surrounding areas

Approved (Corporate)

In business since 1928

Free estimates

Credit card accepted

"I was seeking a significant augmentation of insulation in my attic, since the existing insulation was 31 years old, and had become very thin, and shoved around over several decades of work up there. After vetting 4 contractors, I chose Western Pest Services, and was very pleased with the entire process. they did a thorough evaluation of the attic space, evaluated my plan to run the installation tube through a 2nd floor window, and confirmed that there are no pests in the space. I felt that the price was fair - and the technicians did a terrific job in less time than I had expected. Definitely recommend them!"
9 neighbors recently requested a quote
Recommended by83%of homeowners
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Insulation questions, answered by experts

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.

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

Yes. Bathroom insulation requires a vapor barrier. As a matter of fact, bathrooms and kitchens are the two areas of the home that should always get a vapor barrier because of the excess moisture. If you don’t have a vapor barrier in place in these rooms, the moisture will build up and eventually lead to mold and bacteria, not to mention the destruction of the insulation.

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.

Yes, many services include adding insulation for energy efficiency. Confirm with your contractor.

The Williamstown, NJ homeowners’ guide to insulation services

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