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TRUSTED BY SAINT CHARLES, MD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon385
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Saint Charles - Updated Nov 2026

Avatar for Comfenergy, LLC
Comfenergy, LLC
4.6(
54
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Saint Charles, MD and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Comfenergy was very professional thorough from the in-person estimate thru installation. Even though we didnt have a full energy audit, they still go over your entire home and tell you what should and what needs to be done. Some of the little things we did ourselves, or had our handyman. Then Comfenergy did the big part, seal and insulate the attic. We still had late 80's insulation and never a sealing done. It ended up being over an 8 hour project. They were not the cheapest estimate, but definitely the most in-depth review and recommendations provided. The two man team that did the actual work were very professional, showed us the work as the progressed, and good clean up job after all was done."
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+68

Response time1 day
Response rate100%
43 neighbors recently requested a quote
Avatar for ROI Construction LLC
ROI Construction LLC
4.1(
18
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Saint Charles, MD and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"This was the second time we hired ROI Construction LLC to work on our home and they did an excellent job both times. Originally our roof was replaced and ROI did a fantastic job, going above and beyond in making sure every detail was perfect. Recently we had the roof and skylights of an addition replaced. In both instances ROI charged less than the competitors and the workmanship was high grade. I highly recommend this company."
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+19

60 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for PMC Home Improvement, LLC
PMC Home Improvement, LLC
3.7(
21
)
Blown-In Insulation - Install or Upgrade

Serving Saint Charles, MD and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

With over 30 years of experience in the construction industry, we are the experts you need to take care of your home. We handle everything from roofing to remodeling to painting to carpentry. We will treat your home as we would treat our own. Give PMC Home Improvement, LLC a call today, we look forward to working with you!

Deck Refinish
Stain & Paint Deck
Refurbished Hardwood Floors
Refurbished Hardwood Floors
Refurbished Hardwood Stairs

+10

Response time4 hrs
Response rate92%
3 neighbors recently requested a quote
Accurate Insulation - Home Facebook
4.2(
152
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Saint Charles, MD and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"My house is a little wacky and the proposal was to include all of the crawl space and ceiling surface area. Sadly there was no way to know that a portion of both were inaccessible to insulate. Was hoping to fix issues with freezing pipes by insulating but that is the part they could not access. The scheduling and some staff on the phone is a little dry on the phone. The crew who came to do the job worked their butt off and were super nice. CJ, who drew our proposal, was very nice and knowledgeable. He warned me that his estimation might be a little off but the estimation of the Pepco energy saving percentage back ended up being way off after the energy audit. That made the job much more costly than predicted and I had not planned for that. He was willing to adjust the bill slightly but not significantly enough to really make a difference. Overall, it is going to make a huge difference in the comfort in the house and the crew was very professional."
Response time2 days
Recommended by97%of homeowners
Avatar for Ridge Remodeling & Design, LLC
Ridge Remodeling & Design, LLC
4.4(
84
)
Blown-In Insulation - Install or Upgrade

Serving Saint Charles, MD and surrounding areas

In business since 2018

Free estimates

Warranties offered

"Excellent contractor. Fast, reliable and reasonably priced. Removed old insulation, cleaned and then installed new insulation in attics. Kept work site neat. Showed up on time. Highly recommend."
Kitchen Remodel
Kitchen Remodel
Kitchen Remodel
Bathroom Remodel
Bathroom Remodel

+8

Response time2 days
Response rate92%
Recommended by88%of homeowners
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Drywall Insulation FAQs, answered by experts

Yes, you can hammer a nail into a wall stud. But before you do, it’s important to confirm that you’re actually nailing into a stud—and not wiring, pipes, or ductwork. To check, find a few more studs in the wall, then measure to make sure they’re either 16 or 24 inches apart.

You can plaster over regular drywall, but it's essential to prepare the surface properly. Before plastering, the drywall should be clean, free of dust, and any loose or peeling paint should be removed. Applying a primer specifically designed for plastering can improve adhesion. Some professionals recommend applying a base coat of plaster or joint compound to create a better surface for the plaster to adhere to. Proper preparation ensures a smooth and durable plaster finish over regular drywall.

You can paint over drywall mud about 24 hours after application, but the exact timing depends on factors like humidity, temperature, and the thickness of the mud. For the best results, ensure the mud is completely dry to the touch and has changed from a darker gray to a lighter, chalky white. Don’t forget to sand and prime the drywall surface before you paint to create a smooth, even finish.

Mudding drywall is a DIY-friendly project, but patience and practice are required for perfection. If you’re working in a highly visible area and want the best possible finish, hiring a professional drywaller is worth the cost. Pros have the tools and know-how to ensure a smooth surface with fewer sanding sessions and less cleanup.

There are six levels of drywall finish, from 0 to 5, that refer to the amount of work performed during the finishing process.

Level 0: Drywall is hung with no finishing work.

Level 1: Tape is placed over the seams between drywall sheets.

Level 2: A thin layer of mud is applied over the tape and screw holes. This level is common for utility rooms or walls that will be covered.

Level 3: A full coat of mud covers the screw holes and tape, but the surface is not sanded. This is often used in garages.

Level 4: This is the most common finish for visible interior walls. It involves applying two coats of mud over seams and screw holes, with sanding between each coat, creating a smooth surface ready for flat paint.

Level 5: This is a high-end finish for luxury homes. It includes full taping, mudding, and sanding, plus a final skim coat over the entire surface before painting.

The Saint Charles, MD homeowners’ guide to drywall insulation services

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