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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

422 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

Although they are used for similar tasks, spackle and joint compound are not the same. Joint compound, also known as drywall mud, consists of limestone and gypsum and is primarily used for large-scale projects like taping and finishing seams on new drywall. Spackle is composed of gypsum and binding agents, making it a thicker compound best suited for small wall repairs like filling nail holes or cracks, as it dries quickly and is easy to sand. For small repairs, either product can be suitable. However, you can use joint compound for small jobs in place of spackle, but you cannot use spackle for large-scale taping and mudding projects.

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.

You should always hang drywall from the top down. Starting at the top makes it easier to create a straight, tight line between the ceiling and the wall. Any gaps that occur will be at the bottom, where they are easier to manage. You can either cut the bottom piece of drywall to fit the remaining space or cover the gap with baseboard trim. Additionally, starting at the top is physically easier, as you won't have to fit the top sheet into a tight space between the lower sheet and the ceiling, or try to balance the upper sheets on the lower ones while securing them.

Textured walls are a great way to hide imperfections left over by drywall installation, but many homeowners feel like it’s an outdated look, despite there being so many types of drywall texture. And while the textured walls of today are a far cry from the popcorn ceilings and faux stucco of our grandmother’s homes, if you want a more modern look or you want to install wallpaper, it’s time to smooth out your walls.

It’s less costly to drywall a fireplace than shiplapping it since material costs are higher for shiplap. However, if you’re DIYing the project, shiplap is less expensive since you won’t have to pay for labor. With drywall, getting a smooth finish is difficult unless you’re a pro. Shiplap is ideal for an accent wall or unique space, such as around a fireplace, since it adds texture and gives off a cozy vibe.

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.