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Top-Rated Drywall insulation pros in Round O - Updated Nov 2026

Avatar for USA Insulation of Charleston
USA Insulation of Charleston
5.0(
5
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Round O, SC and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

USA Insulation has been providing homeowners with energy efficient insulation since 1985. Our trained, professional installers, service Charleston County, Berkley County & Dorchester County. We pride our company on reliability, great communication, integrity and quality work. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Please contact us today to set up a free consultation

50 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
410
)
Blown-In Insulation - Install or Upgrade

Serving Round O, SC and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

Elevate your home with Home Genius Exteriors, setting the standard in Charleston by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It's time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing

+53

431 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Barrier South
Barrier South
4.8(
15
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Round O, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"The process to remove the blown in insulation and the install of the foam was a 2 day process. The guys were efficient with their time and did a great job. I am happy with the results"
Attic Insulation - Open Cell - nominal 5" - R
Attic Insulation - Open Cell - nominal 5" - R
Attic Insulation - Open Cell - 10.5" - R-38
Exterior walls - open cell walls - R-13 value
Shaved flushed for sheet rock.

+4

Response time2 days
123 neighbors recently requested a quote
Recommended by21%of homeowners
Avatar for All Foam Insulation of the Carolinas
All Foam Insulation of the Carolinas
4.5(
13
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Round O, SC and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"Did not do work, but pricing was competitive with everyone else.  Invoice got lost in junk e-mail, so did not think I ever received invoice, but I found it a month or so after job was completed again.  If\when I have another job will call All Foam and make sure Invoice doesn't get lost in junk e-mail!
"
Recommended by100%of homeowners
Avatar for ADT Solar
ADT Solar
4.4(
111
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Round O, SC and surrounding areas

In business since 2008

Free estimates

Warranties offered

"Ethan explained (in detail) how they would not only set up the panels on top of my home, but that they will also "pressurize" my home, including my air conditioning unit, to ensure that I get the best service possible from my panels!  He explained every detail of cost, taxes, and best of all REBATES!  He explained several methods of purchase, as well.  I have his personal cell phone number in case I have questions, and I can call their office at ANY TIME if I need anything.  So far, my experience with Sunpro Solar (Mandeville, LA) has been nothing short of great!  In a few weeks, I'll have my solar panels installed.  The time it has taken to get to this process has been minimal.  Everyone I've spoken with at Sunpro Solar has been friendly, helpful, knowledgeable, respectful, and accommodating.
"
11 kW PV Installation
5 kW PV Installation
9.5 kW PV Installation
Recommended by89%of homeowners
Foam Tech Professionals, LLC
4.4(
11
)
Injection Insulation - Install

Serving Round O, SC and surrounding areas

In business since 1999

Free estimates

Small jobs welcome

"Really am pleased with this company. Would use them again. Workers had excellent customer service skills and knowledge for what they were doing! Owner was frequently there assessing situation as well as always eager to answer my million questions! I learned a lot about insulation. My house is now consistently the temperature I set. I can go into my attics without sweating! Great job by a well oiled team! Highly recommend!"
 Foam on ducting in crawl space
 Foam in crawl space
 Foam on exterior wall
 Our foam insulation truck
Recommended by100%of homeowners
Showing 1-10 of 15
Drywall Insulation FAQs, answered by experts

A common cause of separation between a wall and the ceiling is truss lift—this can happen to the ceiling of rooms directly under the attic when the seasons change and wood building materials dry out, shrink, and shift. Roof trusses often dry out at different speeds, and if the bottom pieces dry out faster than the top pieces, they can shrink and pull the attached drywall away from ceilings and walls, causing cracks. Fortunately, truss lift is only a cosmetic problem, not a structural problem, and you can fix it by separating the ceiling drywall from the roof trusses, and patching the cracks.

Textured walls can increase the value of your home if the style is modern and seen as a desirable feature and not something a prospective buyer would need to remedy. A good example of this is popcorn texture versus Venetian plaster. The plaster wall would add value to your home, whereas the popcorn texture may be something a new buyer would want to remove.

Drying alone can take 1 to 4 hours to dry to the touch per plaster layer, but some types of plaster take several hours longer to dry. However, this doesn’t mean the job is done because plaster doesn’t fully harden until it cures, which can take a few days to a couple of weeks. It may take even longer if you’re building a new, pretty thick plaster wall. Allow the plaster to cure before painting it.

Popular wall textures include orange peel, knockdown, spray sand, and smooth finishes. Orange peel and knockdown are particularly common choices for drywall as they are simple and cost-effective. Orange peel texture has a lightly bumpy surface resembling the skin of an orange, while knockdown (sometimes called knockout) looks like a stucco finish with flattened high spots. In contrast, popcorn texture has fallen out of fashion, partly due to its past association with asbestos and a shift toward more restrained interior design styles.

If your home was built before the 1940s and was not remodeled in the past 50 or so years, you probably have plaster walls. Aside from assuming, there are some practical ways to tell if you have plaster walls, including the following: If you knock on the wall and it feels solid, not hollow, if you can’t insert a thumbtack easily, if there are cracks that look like spiderwebs, or if your home has curved, arched, or swirled walls, doorways, or window openings.

If you have an unfinished basement or attic, you could examine the backs of any finished walls to check, too.

The Round O, SC homeowners’ guide to drywall insulation services

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