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TRUSTED BY WILLIAMSTOWN, NJ HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon179
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Williamstown - Updated Nov 2026

Avatar for E S G, Inc.
E S G, Inc.
4.7(
126
)
Blown-In Insulation - Install or Upgrade

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%
Recommended by97%of homeowners
Avatar for Brittin Built, LLC
Brittin Built, LLC
4.8(
80
)
Blown-In Insulation - Install or Upgrade

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 rate90%
10 neighbors recently requested a quote
Avatar for Master Attic, LLC
Master Attic, LLC
4.8(
61
)
Blown-In Insulation - Install or UpgradeInsulation - Install or Upgrade

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

Response time2 days
Response rate100%
15 neighbors recently requested a quote
Avatar for Atticrawl, LLC
Atticrawl, LLC
4.7(
18
)
Blown-In Insulation - Install or Upgrade

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
57 neighbors recently requested a quote
Recommended by62%of homeowners
Avatar for Western Pest - Maple Shade
Western Pest - Maple Shade
4.5(
11
)
Blown-In Insulation - Install or Upgrade

Serving Williamstown, NJ and surrounding areas

Approved (Corporate)

In business since 1928

Free estimates

Small jobs welcome

"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!"
Response time1 day
Response rate99%
6 neighbors recently requested a quote
Red Lion Insulation
New to Angi
Blown-In Insulation - Install or Upgrade

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1975

Credit card accepted

Offers commercial services

The Camden County-based team of professional contractors at Red Lion Insulation is ready to assist you with any renovation or building project with best-in-class installation services. Contact your local contractor at {66 E Gloucester Pike, Camden County, New Jersey for more details. As a TruTeam company, we have the resources to complete a variety of installation projects throughout the Camden County area. We are ready to serve your needs, so contact Red Lion Insulation now!

26 neighbors recently requested a quote
Avatar for Koala Insulation of the Delaware Valley
Koala Insulation of the Delaware Valley
4.8(
19
)
Blown-In Insulation - Install or Upgrade

Serving Williamstown, NJ and surrounding areas

In business since 2021

Free estimates

Small jobs welcome

"Wow... just wow. I feel like the clock rolled back several years to the days when tradesmen where available, on time, skilled and affordable. Koala is a rare find. These guys have it all together. Sal is the sparkplug that makes it work seamlessly. He guides you in just what you need, and nothing you don't need. His estimates are detailed and very fair pricing. After consulting with Sal he was able to schedule the work in less than a week. The installation crew called ahead on the scheduled day and arrived exactly on time. Shawn led the crew of 4 techs who worked neatly and thoroughly, and cleaned up well. They did rim joist sealing and batt insulation in a somewhat complex situation where I have I joists adjoining the band board. They also did blown in fiberglass in the attic. For anyone considering insulation of any format I highly recommend Sal and Koala. And, the best part of this experience with the company....the total cost less than others who had rebate programs."
Response time11 hrs
Response rate95%
Doyle Drywall Co
4.7(
137
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Williamstown, NJ and surrounding areas

In business since 1995

Free estimates

"We had a cracked ceiling and sagging ceilings in 3 rooms, and a portion of drywall hanging but off the nails, larry and his son, replaced the broken pieces and shored up the rest with drywall nails, and insulation, and in some cases new drywall. A dirty, difficult job, which had to be done two days in a row as it required furniture moved and painters to follow. He recommended a painter for us as well, which allowed us to set the whole thing up for one week of inconvenience, but got the job done. He and his son were pleasant as well which helped through this trying experience. Since this problem is uniform through our development we had seen where ceilings had caved in on others and were caving in slowly on the rest and wanted this done before anything fell down on us and hurt us or guest. Larry cut out two days to do 3 rooms, which allowed us to set the painter up for completion. We also had to bring in a electrician to shore up a ceiling fan now that the ceilings were set properly."
Recommended by95%of homeowners
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Drywall Insulation FAQs, answered by experts

Popular wall textures include orange peel, knockdown, spray sand, and smooth finishes. Orange peel and knockdown are particularly common choices for drywall as they are simple and cost-effective. Orange peel texture has a lightly bumpy surface resembling the skin of an orange, while knockdown (sometimes called knockout) looks like a stucco finish with flattened high spots. In contrast, popcorn texture has fallen out of fashion, partly due to its past association with asbestos and a shift toward more restrained interior design styles.

Although they have similar applications, spackle and joint compound are not the same. Their primary differences lie in their composition, consistency, and ideal use cases.

Spackle is composed of gypsum and binding agents, making it thicker than joint compound. It dries quickly and is easy to sand, which makes it ideal for small wall repair projects like filling nail holes or patching minor damage.

Joint compound, also known as drywall mud, consists of limestone and gypsum. It is primarily used for large-scale projects, such as taping and finishing the seams on newly installed drywall. It tends to shrink more than spackle and can be more difficult to spread.

While both products can be used to fill small depressions and cracks, spackle cannot replace joint compound for taping and mudding new drywall. Conversely, you can often use joint compound for small patching jobs typically done with spackle.

Yes, you can use drywall repair techniques for some types of plaster damage. Tiny holes and small cracks in plaster can be patched in similar ways to drywall. You apply the necessary compound to fill the hole, wait for it to dry, then sand it down. For larger damage, like water damage or mold, you need to use plaster-specific techniques and materials.

Whether you can reuse a drywall anchor depends on its type, material, and how it is removed. Plastic anchors, such as expansion or self-drilling types, are generally considered single-use because they are designed to expand and are likely to break or become deformed upon removal. Metal anchors, like toggle bolts, are more durable and can often be reused if they are not damaged during extraction. However, with toggle bolts, the toggle mechanism can fall inside the wall when the bolt is removed, making it difficult to retrieve. If an anchor is damaged or must be cut for removal, it cannot be reused regardless of its material.

According to the EPA, mold grows within 24 to 48 hours if left untreated after a water leak. So unless you notice the leak and stop it right away, you only have a day or so before mold is a real concern. If you don’t notice the leak, it can take about three weeks for the mold spores to become visible. That means you’ve likely had an active mold infection for a few weeks by the time you notice discoloration.

The Williamstown, NJ homeowners’ guide to drywall insulation services

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