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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon196
    Verified insulation services reviews

Top-Rated Insulation pros in Marlboro - Updated Nov 2026

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 Marlboro, 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

1 neighbors recently requested a quote
Recommended by100%of homeowners
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 Marlboro, 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%
16 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Marlboro, 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%
124 neighbors recently requested a quote
Avatar for Thermal Guardians Insulation
Thermal Guardians Insulation
5.0(
7
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Marlboro, 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
9 neighbors recently requested a quote
Avatar for Integrated Home Services
Integrated Home Services
4.7(
713
)
Blown-In Insulation - Install or Upgrade

Serving Marlboro, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

At Integrated Home Services, we believe a truly comfortable, energy-efficient home is built from the outside in. Rather than treating home comfort as a series of isolated equipment fixes, we take a whole-home building science approach. We combine high-performance insulation, comprehensive air sealing, and complete thermal envelope management to deliver lasting comfort, lower utility bills, and healthier indoor air.

4 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Dave Hoh's Home Comfort & Energy Experts
Dave Hoh's Home Comfort & Energy Experts
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Marlboro, NJ and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

Do your monthly energy bills seem too high? Are there areas of your home that are noticeably more uncomfortable than others? The home energy experts at Dave Hoh's Home Comfort & Energy Experts can help. We combine the skills and expertise to fix any home energy issue. As an authorized Dr. Energy Saver dealer, our team of professionals undergoes continuous training to help us remain the leader in the home energy industry.\n\nAt Dave Hoh's Home Comfort & Energy Experts we understand that a home's maximum energy efficiency is not achieved from one service alone. So because of this, we offer a variety of HVAC, insulation, air sealing and energy solutions that work in conjunction to improve the overall energy efficiency of your home. We serve Holmdel, Colts Neck, Rumson, Middletown, Howell, Brick, Manasquan and surrounding towns in New Jersey (Monmouth & Ocean County). Contact us today for a FREE no-obligation home energy services quote.

We removed the old fiberglass insulation & blew-in our TruSoft cellulose insulation.  Also looking at this picture we can see Nate our crew leaders showing off why we use TruSoft insulation, notice the lack of dust!
AC handler and attic not properly insulated.  Attic was not air sealed and needs to be air sealed before we can insulate the attic.
Horrible insulation around this trunk.  We will replace or rewrap with mastic tape.
We see dirt in the insulation and when we pull back the fiberglass insulation we can see the attic was not air sealed.
Attic is not air sealed and has exposed fiberglass insulation.  Exposed fiberglass insulation does next to nothing to insulate.

+28

Response time2 days
Response rate100%
5 neighbors recently requested a quote
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Insulation FAQs, answered by experts

Yes, cold walls are a common indicator of poor or inadequate insulation, especially if the walls feel significantly colder than the air in the room. This suggests that heat from your furnace is escaping rather than being retained. The issue could be that the walls have no insulation, or that the existing insulation is old or has been damaged by water, moisture, or pests. Your best course of action is to hire a professional to investigate. An insulation contractor can determine if you need to add or replace insulation and can often perform the work without creating large holes in your drywall. If you suspect the problem might also be related to your heating system's performance, an HVAC technician can take a closer look.

Yes, insulating ductwork in a crawl space is a worthwhile investment, especially if you live in a colder climate or run your air conditioning for most of the year. Uninsulated ducts can lose up to 30% of their heating and cooling efficiency, which can significantly impact your electricity bill. The project is a relatively small investment and typically only takes a few hours. It's a particularly simple add-on if you are already hiring someone to insulate the entire crawl space. An added benefit is that insulated ducts put off less hot or cold air, making them less attractive to pests.

No, you should avoid using antifreeze in your outdoor spigot to prevent freezing. Antifreeze can contaminate your water supply and harm the environment. Instead, employ safer and more effective methods for winterizing your spigot, such as draining the spigot and using insulation, to protect it from freezing temperatures.

Doubling the insulation in your home also doubles the R-value of said insulation. In other words, by adding more insulation, you can reduce the heat loss by half. Most homes benefit from increasing insulation. Older homes, in particular tend to have less insulation as is, so doubling your insulation could drastically reduce your energy bills, keep your home more comfortable, and take the strain off your HVAC system.

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.

The Marlboro, NJ homeowners’ guide to insulation services

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