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TRUSTED BY WILMINGTON, DE HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon427
    Verified drywall insulation services reviews

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

Avatar for Insulation Guyz
Insulation Guyz
5.0(
82
)
Blown-In Insulation - Install or Upgrade

Serving Wilmington, DE and surrounding areas

Approved

In business since 2006

Free estimates

Small jobs welcome

"Mike and his assistant were very professional. They worked until eight at night to complete the job, (excellent work ethics ) both were very courteous and pleasant and a pleasure to have working at my home. The insulation in my pole barn turned out perfect, and I couldnâ t be happier. I will use them again for future projects. Rob W"
Response time2 days
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for G.E.G. Enterprises, LLC
G.E.G. Enterprises, LLC
4.4(
205
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Wilmington, DE and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Credit card accepted

"G.E.G. did a great job installing blow in insulaltion in my attic. They were quick and prepared. My only wish is they would have been able to pull up more of the unused attic flooring and gotten more insulation under it, though they were able to increase insulation in other areas."
Blown-In Attic Insulation
Response time1 day
50 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for MSJ Attic Insulation
MSJ Attic Insulation
5.0(
7
)
Blown-In Insulation - Install or Upgrade

Serving Wilmington, DE and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Did a great job on the insulation however they left a hole in the ceiling when they dropped something on the attic floor. Not a big deal but they need to be careful. Overall, amazing work they do all kinds of insulation and they also install radiant barriers on roof joists. They are reasonably priced and the crew is super friendly, pleasure to work with."
Business card
Poorly insulated
Poorly insulated
In progress
Radaint barrier

+6

41 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 Wilmington, DE 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%
15 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Injection Insulation - Install

Serving Wilmington, DE 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
Response time1 day
Response rate100%
126 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
515
)
Blown-In Insulation - Install or Upgrade

Serving Wilmington, DE and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Home Genius Exteriors did a great job on my gutters. It was extremely fast and easy to be honest. I was really surprised at how quick the process was. The project manager met with me and we did a walk-through. I was truly satisfied with the work that was completed."
Windows
Windows
Windows
Windows
Windows

+69

27 neighbors recently requested a quote
Recommended by49%of homeowners
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Drywall Insulation FAQs, answered by experts

Knowing what causes drywall damage can help stop it before it starts. Here are some of the most common causes of drywall damage: 

  • Water damage from roof leaks or leaky pipes. 

  • Small holes caused by doorknobs, minor accidents, and rodent infestations. 

  • Wall dents stemming from moving furniture and minor accidents. 

  • Wall cracks that form from a settling foundation or seismic activity. 

  • Nail pops from nails and screws in the walls. 

  • Large holes that are caused by accidents with heavy objects, children and pets, or sporting equipment.

You can technically just paint over hairline cracks in plaster since these cracks are often harmless, but this will mostly be a waste of paint. Paint will only hide the hairline crack for a few months before it shows up again. The best solution is to repair the crack with flexible filler or joint compound before repainting.

Whether it’s better to screw or glue drywall depends on your specific budget and project timeline. Professional drywall installers are more likely to use screws and fasteners than adhesives, but it takes longer. But if you are DIYing your drywall installation, glue is a perfectly fine choice if you’re willing to pay extra for adhesive.

The age of your home can clue you in to whether you have plaster or drywall ceilings. Homes built after the ‘70s are more likely to have drywall ceilings and walls, while older homes have plaster. You can also do the pushpin test: A pushpin will go into drywall, whereas it’s much harder to push one into a plaster wall. If you’re still unsure, ask a drywall professional to let you know which type of ceilings and walls you have.

In framing, studs are placed at 16-inch intervals to coincide with the typical spacing of wall materials such as drywall or plywood. This spacing is called "on-center" and is necessary for maintaining structural stability and efficient use of materials. The 16-inch spacing also helps to distribute the weight evenly across the building's structure. For those looking to cut material costs and improve energy efficiency, 24-inch stud spacing can be employed through a method called "advanced framing". This requires careful planning and adherence to local building codes to ensure structural integrity.

The Wilmington, DE homeowners’ guide to drywall insulation services

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