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Find Insulation pros in Trenton

Avatar for Insulation Express LLC
Insulation Express LLC
4.9(
47
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Trenton, NJ and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

Fair pricing, clean installs, and real results. We specialize in attic and crawl space insulation, air sealing, and moisture control—done right the first time and built to last. Call or text anytime: (732) 800-7300

New Fiberglass Batts
Finished Cellulose
Thermal Diagnostics
Fresh Fiberglass
Seal Attic Air Leaks

+31

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alligood Energy
Alligood Energy
4.9(
105
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Trenton, NJ and surrounding areas

Approved

In business since 2012

Credit card accepted

Customers say: Quick response

"Jeff Alligood is a very personable and laid back guy and came out to estimate the job the day after I called the company. He spent considerable time in the attic, basement, outside the house and was enthusiastic about answering questions and offering options. He sent an estimate the next day. After doing some research about insulation and venting I called Jeff and asked if he could take another look at the house. He was happy to do so, answered some  new questions and sent a revised estimate. Jeff and his team arrived right on time the day of the job and went right to work. There was a problem with the vents I had ordered and Jeff went off to the local Home Depot, purchased new vents (which turned out to be a much better option for this job) and installed them in good time. Meanwhile, his crew sealed openings in the attic floor, installed baffles, blew in fiberglass insulation to an R55 level and capped the attic access cover. The crew cleaned everything up and they were done by mid-afternoon. All in all a nice company to deal with.
"
Insulation Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Master Attic, LLC
Master Attic, LLC
4.8(
61
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Trenton, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I RECENTLY HAD MY ATTIC INSULATION REPLACED BY MASTER ATTIC. ALEX CAME OUT RIGHT ON SCHEDULE AND GAVE ME A FAIR PRICE. ( I DID HAVE 4 OTHER ESTIMATES) THE CREW LEAD BY ROBERTO WAS AMAZING. THEY WERE VERY CONSIDERATE, CAREFUL IN MAKING SURE THE AREA WAS SEALED OFF AND WERE VERY CAREFUL OF MY PERSONAL BELONGINGS. THEY DID A GREAT JOB IN REMOVING OLD INSULATION , VACUUMING OUT THE ATTIC ,SPRAYED AREA AND SEALED ANY OPENINGS. BEFORE THEY BROUGHT IN NEW INSULATION, THEY ASKED ME IF I WISHED TO TO VIEW THE ATTIC AND I DID. I WAS AMAZED EVEN AT THIS POINT, HOW CLEANED EVERYTHING LOOKED . (THIS INSULATION HAD BEEN UP THERE FOR 70 YEARS) NEW INSULATION WAS INSTALLED AND IT LOOKS GREAT. THE CREWED CLEANED UP EVERYTHING , EVEN VACUUMED THE AREA IN THE ROOM. ALL BAGS OF OLD INSULATION WERE REMOVED PROMPTLY AND I WOULD HIGHLY RECOMMEND THEM TO ANYONE."
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%
18 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Trenton, NJ and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"RetroFoam of Michigan deserves more than five stars. The representative who gave me an estimate was prompt and professional. The office staff who called to tell me installers were ahead of schedule was kind and courteous as I answered during a busy day at work. The crew who came to insulate my garage was extraordinary. They made sure my garage was left clean. They even mopped the garage floor before they left! The crew leader explained the process of insulating with foam and exactly how the holes in my walls would be patched before the team left. I am an educator of 30 years and a licensed builder. I've remodeled and flipped homes and have rental units. I'm used to swinging a hammer alongside others. This company is made up of hard-working people who charge a fair price and do exceptional work. I have advice for those that run the company - take care of your installation crews! They are exceptional! If you've read this far and are interested in having your house/garage insulated give them a call now. You will be happy you did. Now...I'm looking forward to enjoying a warm man-cave garage on cold nights!"
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
Response time1 day
Response rate100%
121 neighbors recently requested a quote
Avatar for Thermal Guardians Insulation
Thermal Guardians Insulation
5.0(
6
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Trenton, NJ and surrounding areas

Approved

Free estimates

Credit card accepted

"Thermal Guardians insulation performed insulation services in an exterior crawl space below my home that was letting cold air into the house. The area was difficult to access, but they more than rose to the challenge and completed the work effectively. I will definitely use their services again."
Attic insulation-batts
Blown in cellulose
Crawlspace Insulation
Air sealing
8 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
349
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Trenton, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Credit card accepted

"I have only glowing things to say about our experience using Home Genius Exteriors. From the thorough initial estimate and comprehensive inspection of the worksite and what the job would entail to the final bit of blown-in insulation, our multi-team project was completed to our satisfaction in a timely and professional manner. In the course of four days, we had a new roof, new trim, new gutters, and new insulation. Each part of the project required a different team. Each crew finished their task within the projected timeframe. Home Genius coordinated everything, including ordering and delivering the materials and arranging for the delivery and removal of the dumpster. Thanks to our Project Coordinator Ivan, every step in the process went smoothly. He arranged for workers to be at our home on consecutive days: we did not have any time in between steps waiting for availability of the next team. Ivan kept us informed of progress at every step of the way."
Roofing
Roofing
Roofing
Roofing
Roofing

+74

Recommended by73%of homeowners
Avatar for Attic Avengers LLC
Attic Avengers LLC
5.0(
4
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving Trenton, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Great experience from start to finish! The team was professional, friendly, and did an excellent job replacing our old blown-in insulation. They were thorough, clean, and made the whole process easy. We’re already noticing a difference in the house. Highly recommend!"
Attic
Attic
Attic
Attic
Attic

+6

18 neighbors recently requested a quote
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Insulation questions, answered by experts

Mold can grow on garage ceiling insulation, which is why it’s important to install a vapor barrier behind the insulation and keep the space cooled and heated as you would your living area. Doing so will more or less eliminate the risk of mold growing on your garage ceiling insulation. You can also install a self-draining dehumidifier to help remove moisture, or opt for a foam board insulation or spray foam insulation that won’t harbor moisture and mold.

Plaster itself has a higher R-value than drywall. However, there are other considerations surrounding plaster and insulation. As a general rule, it's easier to obtain consistency in insulating value and quality when working with drywall rather than plaster. Plaster walls often don't contain any insulation behind the wall covering by design, and careful evaluation is necessary when choosing to add it.

Yes, you can install insulation behind drywall yourself, but only if your walls are not finished. If your studs are exposed, installing fiberglass insulation in roll or batt form is very straightforward and just requires a few tools and some safety equipment. If your walls are already finished and you’re looking to add insulation, it’s better to hire a professional, as you’ll likely need blown-in insulation, which can be dangerous to work with and a challenge to get into the proper areas in your wall voids.

Insulating ducts prevent or significantly reduce condensation by reducing temperature differences between the duct surface and surrounding air. Proper insulation also minimizes sweating, improves energy efficiency, and prevents moisture damage. However, if humidity levels are unusually high or there are air leaks, additional measures like sealing ducts and using a dehumidifier may be needed.

When installing metal siding, a high-quality house wrap is considered the best protection against condensation and moisture infiltration. House wraps can increase a home's efficiency significantly. However, a house wrap is not a replacement for a vapor barrier because it can be permeable when moist air passes through siding. This is why it's essential to follow manufacturer instructions for insulating siding when installing new siding.

The Trenton, NJ homeowners’ guide to insulation services

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