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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon99
    Verified insulation services reviews

Find Insulation pros in Pennington

Avatar for RJ Walsh Associates, Inc.
RJ Walsh Associates, Inc.
4.4(
111
)

Serving Pennington, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"They immediately took care of my home inspection problem. Showed up the following day after the call and professionally installed the insulation and vented a fan exhaust to the outside of the house. Professional, quick, excellent customer rapport..."
Response time12 hrs
Response rate90%
9 neighbors recently requested a quote
Avatar for Master Attic, LLC
Master Attic, LLC
4.8(
60
)

Serving Pennington, 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%
23 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)

Serving Pennington, NJ and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"These guys were professional, on time and communicated very well... I would recommend this company to you for all your Spray Foam Insulation needs..."
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
Response time1 day
Response rate100%
122 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
306
)

Serving Pennington, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Credit card accepted

"The job was very well done. Gustavo and his crew were EXCELLENT. Dealing with the project Manager Taylor was EXCELLENT. One of a kind company. A unique feature that was used for installation was the inclusion of BOTH Sanford insulation and housewrap. I have not had another contractor offer me both of those. It’s always either one or the other. Home Genius is backed by the better business bureau and is a James Hardie certified installer for those looking for one."
Roofing
Roofing
Roofing
Roofing
Roofing

+74

Recommended by83%of homeowners
Avatar for Atticrawl, LLC
Atticrawl, LLC
4.7(
17
)

Serving Pennington, 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
41 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Koala Insulation of Mercer & Middlesex Counties
Koala Insulation of Mercer & Middlesex Counties
5.0(
1
)

Serving Pennington, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

Koala Insulation of Mercer & Middlesex Counties is the area's certified insulation expert providing high-quality insulation services to homeowners, contractors and property owners. We work with new construction, retrofit applications, and properties affected by natural disasters or that have suffered significant damage. We provide all types of insulation including blown-in cellulose and fiberglass, spray foam, and batt-insulation. Furthermore, we provide a number of energy efficiency upgrades such as air sealing, thermal imaging, hatch and can light covers. If it involves insulating or improving energy efficiency within a building envelope, we can handle it. We offer competitive prices and free insulation evaluations. We are locally owned and operated, fully insured and licensed, and our services come with a limited lifetime warranty.

Sprayfoam
New Construction
Blown-in Insulation
Blown-in Insulation
Blown-in Insulation

+1

Response time6 days
Response rate100%
8 neighbors recently requested a quote
Score Spray Foam
3.6(
24
)

Serving Pennington, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"My bathroom remodeling experience was unexpectedly pleasant, and I owe a great deal of gratitude to the guys from Score Construction. I had a rough idea going in of what I wanted my mother's new bathroom to look like, but it was mostly just conjecture and hand-waving, needless to note I'm the type of guy who needs a gal that's mechanically inclined, because I'm far from it. Before starting the project, I had three contractors come and take a look at the bathroom (I also had two contractors who could only give me quotes over the phone, they were cheaper than the quotes I received in person, and I think it's very obvious why). They were all very professional in their conduct, but what set SCORE apart from the rest was their willingness to hear me out. I drew diagrams of what I wanted the bathroom to look like, and SCORE (in particular Janusz, though his partner was commendable as well) took the time to analyze my thoughts line by line. For my wishes that were feasible, they explained exactly how they would accomplish it, and for some of my ideas that were either too expensive or impossible considering the layout of the bathroom, they suggested revisions that were in line with the overall design (her bathroom is roughly 100 sq ft, so there was ample space for design). My only complaint about the other contractors was that they did not respect my ideas enough, not that they were rude in any way, but it felt to me as if the design was already established according to their desires, and it was me that was going to have to come around to their way of thinking. Admittedly, I have no design experience, but this is my project and my money so I figured that the hired hands should be a little understanding when it comes to my wishes. The guys at SCORE were more than understanding, and it showed itself in the final product. Once all the preliminaries were settled, the actual construction began and it was completed in two weeks. They adjusted their work schedule around my availability (if I was free and let them work straight w/o any days off I imagine it would have been done much sooner). They did a very professional job, and I'm very glad to have had such an easygoing remodeling experience. Mum's happy, so I'm happy. -Ali"
 bathroom
 bathroom
 kitchen floor
 bathroom
 kitchen

+17

Recommended by100%of homeowners
Avatar for Enviro FoamTek, LLC
Enviro FoamTek, LLC
4.3(
22
)

Serving Pennington, NJ and surrounding areas

In business since 2012

Free estimates

Credit card accepted

"Travis was,very reasonable, punctual and did the job very efficiently, leaving no mess behind. My family room wood floor is now insulated below in the crawl space, eliminating the previously cold floor we had before the insulation. The insulation also protects the wood floor by adding a vapor barrier. We are very pleased and would recommend Travis and Enviro Foam Tek."
Barn
Recommended by100%of homeowners
Avatar for Attic Fanatics
Attic Fanatics
5.0(
14
)

Serving Pennington, NJ and surrounding areas

Free estimates

Emergency services offered

Warranties offered

"Attic Fanatics were easy to work with from the initial inquiry phone call. A thorough assessment of what was needed to be done in my attic was shared clearly and precisely. They addressed my concerns of health and safety and shared the full scope of the work. Upon prompt arrival to remove what was necessary they did a neat and clean job. I am so happy with the new insulation installation. They made my home feel better already! I would recommend them fully as they are kind and knowledgeable and do quality work."
Insulation Project
Insulation Project
Response time11 hrs
Recommended by92%of homeowners
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Insulation questions, answered by experts

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

Installing new insulation in a home is worthwhile if your existing insulation is old and has lost some of its insulative capability or if you don’t have insulation installed already. Installing new insulation will boost your home’s energy efficiency, which can reduce your heating and cooling bills and save money on HVAC repair and maintenance in the long run. New insulation also keeps your living space more comfortable, so you and your family will benefit from the work as well. Finally, installing new insulation boosts your home value, making it especially worthwhile if you plan to sell.

Although spray foam insulation typically has a higher price point than traditional insulation, the benefits often justify the investment. It offers superior sealing properties, which can lead to significant energy bill savings. Spray foam also provides excellent moisture resistance and soundproofing. Other advantages include improved indoor air quality by minimizing allergens, a long lifespan of 80 to 100 years, added structural strength to the home, and a straightforward installation process.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

The cost of installing spray foam insulation is $2,760 on average, but this cost can be as low as $650 or as high as $7,700. The main cost factor is the size of the insulated area and the type of spray foam insulation. 

Polyurethane spray foam costs between $0.44 and $1.50 per board foot, where a board foot is equal to the volume of a one-foot length of a board. More expensive options, like soybean or vegetable oil spray foam, range from $1.50 to $3.00 per board foot.

The Pennington, NJ homeowners’ guide to insulation services

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