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TRUSTED BY SMYRNA, DE HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon137
    Verified drywall insulation services reviews

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

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

Serving Smyrna, DE and surrounding areas

Approved

In business since 2006

Free estimates

Small jobs welcome

"Michael and his guys did a great job putting blown in insulation in my attic and drywalled the ceiling. I will recommend them to anyone who needs this type of work."
Response time2 days
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for MSJ Attic Insulation
MSJ Attic Insulation
5.0(
6
)
Blown-In Insulation - Install or Upgrade

Serving Smyrna, 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

42 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Injection Insulation - Install

Serving Smyrna, 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%
125 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
515
)
Blown-In Insulation - Install or Upgrade

Serving Smyrna, DE and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"The Crew was informative, pleasant, and easy to communicate with. Whenever I brought up an issue, they addressed it and made the necessary corrections. Joseph Stanley was Prompt, professional, and maintained great communication throughout the process"
Windows
Windows
Windows
Windows
Windows

+69

14 neighbors recently requested a quote
Recommended by49%of homeowners
Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.6(
60
)
Blown-In Insulation - Install or Upgrade

Serving Smyrna, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Donnie was the person who did the work -cleaning out our dryer vent using a camera to record the inside of the vent the entire vent was completely clog with lint, and after the wok was done, it was completely empty the work was very reasonable priced. I highly recommend Lawson Home Services"
Metal Door Crawlspace Entrace
Turtl Crawlspace Entrance
Attic Air Leaks
Attic Air Sealing
Garage Loft Ready for Sprayfoam

+137

Response time9 hrs
146 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Koala Insulation of Newark
Koala Insulation of Newark
4.7(
31
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Smyrna, DE and surrounding areas

In business since 2020

Free estimates

Warranties offered

"Can't say enough good things about this company, an overall pleasure to deal with. The owner responded fully to all my questions and the crew that came to do the work was excellent. The owner stopped by the second and final day to see how things had gone on the first and assure me that he and the crew were only a phone call away if I had any questions or issues. I have another insulation project and I intend to use Koala Insulation and I expect the same results. Thanks for the great job!"
Batt Rolled Insulation
Blown In Insulation
Spray Foam Insulation
Response time7 hrs
Recommended by92%of homeowners
Avatar for Insulation Geniuses
Insulation Geniuses
4.6(
9
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Smyrna, DE and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"All punctual, polite, professionals, hard working, amicable, Alfredo Sotto was our installer and his crew member Ernie did an exemplary, and they were really neat. The co-owner Jeff who personally came to our house was informative. Phil gave the initial presentation on Monday May 8 he was very detailed and very convincing."
Another Happy Homeowner!
Aeroshield NASA Grade Insulation
Energy Star Attic Seal Process
Gable Attic Fan - SOLAR POWERED!  Runs for FREE and 25 Year Warranty!
AeroShield Installed over Blown-In gives you the right protection forever with it's LIFETIME Warranty!

+37

Recommended by88%of homeowners
Showing 1-10 of 33
Drywall Insulation FAQs, answered by experts

Yes, you can install drywall over plaster, but there are important factors to consider. While it can create a smooth, flat surface, it is often not the best approach. Installing drywall over plaster will increase the wall's thickness, which can cause issues with existing window and door frames that may no longer fit. You might also need to adjust power outlets to keep them accessible. A better, though more expensive, option is to remove the old plaster and lath entirely before installing new drywall. Drywalling directly over plaster seals in the old material, and if any problems arise later, you will need to remove both layers down to the structural beams for repairs. Given the potential complications, this job is best handled by professionals.

The easiest way to cut holes in drywall for electrical boxes is to use a spiral saw with a drywall router bit. Hang the drywall without cutting out a hole for the box, but make sure you measure and mark where the box is located on the wall. Once you screw in the drywall sheet, drill a small hole into the box void, insert the spiral saw bit, and move it around the edge of the box using the inside wall as a guide. You can also use an oscillating multi-tool with an electrical box cutout for fast, professional results.

You’ll want to inspect your plaster walls for signs of damage before painting. If you notice soft spots, deep cracks, bubbling, or areas where the plaster is crumbling or pulling away from the wall, it likely needs repair. While small hairline cracks are common and likely cosmetic, you should address larger issues before painting to ensure a quality, smooth finish.

Brick and stucco are a lot more different. You must use picture hanging clips designed for brick walls, or use a plaster rail system with adjustable hooks. Any other type of hanging hardware will cause damage to the bricks behind. You won’t be able to really use nails, either, because they’re not strong enough to go into the bricks.

If you’re installing new drywall, you may need to skim coat the drywall first for a smooth finish and to allow the primer to adhere to the wall. It’s only necessary if there are imperfections in your drywall due to issues with the studs or improper drywall installation. If you’re refreshing existing walls, you may want to skim coat if there are imperfections across the wall. As an alternative, you can repair your drywall and sand it for a smooth finish before painting.

The Smyrna, DE homeowners’ guide to drywall insulation services

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