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  • Verified reviews icon655
    Verified drywall insulation services reviews

Find Drywall insulation pros in Cornelius

Avatar for Standard Insulating Company
Standard Insulating Company
5.0(
140
)
Blown-In Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Cornelius, NC and surrounding areas

Approved

In business since 1945

Free estimates

Emergency services offered

"Standard Insulating Company sent David E to our house to a**** a problem we were having with hot spots in certain areas. David was up front with his assessment and explained everything in a way we were able to understand. The quote he emailed us was surprisingly reasonable with no hidden fees or surprises. We chose to have our insulation capped as well as radiant barrier installed. The work was scheduled less than a week later and the crew was professional, knowledgable, quick, efficient and kept the whole work area clean. I highly recommend Standard Insulating Company to anyone looking to have any type of insulation work done."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time1 day
6 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for USA Insulation of Charlotte
USA Insulation of Charlotte
4.8(
47
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Cornelius, NC and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Needed a solution for a room above a garage that was hotter than the rest of the upstairs. It was recommended to add insulation to the garage ceiling, air seal the attic, and add additional insulation to the attic. Since then, the room above the garage has been the same temperature as the downstairs. Great work and wonderful solution. Price point came in on average $1000 less than most quotes we received."
Starting the day
Opening up the house
Drilling the holes
Drilling the holes
Premium Injection foam in the walls

+9

Response time11 hrs
Response rate97%
19 neighbors recently requested a quote
Avatar for Behr Insulation, LLC
Behr Insulation, LLC
5.0(
8
)
Blown-In Insulation - Install or Upgrade

Serving Cornelius, NC and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Behr was fantastic! Nick and Dakota were extremely professional and provided a fair quote. They removed the old insulation, installed new insulation in my attic, and sealed all the gaps to help improve my heating efficiency. I have nothing but positive things to say about their work."
Response time8 hrs
Response rate95%
23 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
412
)
Blown-In Insulation - Install or Upgrade

Serving Cornelius, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"From the initial visit with the salesman to the production coordinators to the project managers to the boots on the ground (or roof) my experience with Home Genius Exteriors has been amazing! Tony, the Project Manager, is incredibly knowledgeable and personable. He took the time to walk me through every phase of my roof and siding replacement. He was very responsive, even during off-work hours. He addressed every concern I had and was thoughtful in his responses. He was very thorough when conducting inspections, identifying action items I didnâ t see, even if it meant additional work for his field crew at no extra cost. I canâ t say enough about the field crews for both my roof and siding replacements. They were incredible and they didnâ t treat my house as â just the next jobâ . They catered to my houseâ s needs, worked extremely efficiently, and did everything I asked of them. I would highly recommend Home Genius Exteriors for roof, siding, and gutter needs!"
Roofing
Roofing
Roofing
Roofing
Roofing

+79

Recommended by97%of homeowners
Avatar for GSM Services
GSM Services
4.7(
105
)
Blown-In Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Cornelius, NC and surrounding areas

Approved

In business since 1927

Free estimates

Emergency services offered

"I called GSM inquiring about their HVAC and insulation services. I also asked if I could have someone perform a Manual J load calculation (surprise to me, the Manual J calc was free!) as I felt that my existing heat pump was sized too small for my home (2.5 ton dual-zone single stage heat pump for 2200sq ft 2-story house). We agreed on an appointment time, and they sent Kelly out to my house. Kelly was very nice and professional, and did a thorough job explaining what all could be done and what my options were. Due to having so little room to work inside of the mechanical closest, you would have to remove the air handler completely just to wrap all of the duct work. Since I would be removing the old air handler that was 8 years old anyway, I decided to replace the entire system with a new Amana 3-ton 18 SEER dual-zoned heat pump. Kelly also told me they could seal up the hole & the mechanical closet so that hot air could no longer enter that space as well. I agreed to their quote, and they came out a week later (it would've been sooner but GSM wanted to make sure that the new system was designed properly, so they had to architect and design the layout of the new equipment to fit the small space) to do the work. Owen and Jason came out to perform the installation. They were both very professional & thorough, and they did an excellent job with the swap out & installation of the new heat pump. When GSM told me that it would take two days to do the work, I was prepared to be miserably hot trying to sleep at night with no air conditioning. Not only did GSM bring a portable AC unit for me use that evening so that wouldn't be the case, Owen and Jason actually got the heat pump wired and working the first day so I had full AC that evening, and the portable unit wasn't needed! They also insulated the attic space & mechanical closet with spray foam and foam board so the hot attic air will no longer be an issue. All in all, my experience with GSM has been great! They've been easy to communicate with throughout the entire process, they did an excellent job with the installation of the new equipment, and now I can rest easy knowing that everything has been taken care of!"
New Air Conditioners
AC System Replacement in Charlotte, NC
Dust and debris from ductwork pulled into the duct cleaning machine
Dryer Vent Cleaner Charlotte, NC
Ductless Mini Split Installation

+66

Response time1 day
41 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Drape the space
Drape the space
5.0(
9
)
Blown-In Insulation - Install or Upgrade

Serving Cornelius, NC and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Jeffrey and his crew did an amazing job with my attic. They prepped the home perfectly before starting any work, removed the old insulation, air sealed the attic, and added in the new blow in insulation, they were thorough, tidy, and my home feels better than ever! We have animals that are family to us and they were responsible and respectful with them as well, closing gates and doors where applicable."
Attic restoration
Attic restoration
Attic restoration
Attic restoration
8 neighbors recently requested a quote
Avatar for Flood Medics Restoration, LLC.
Flood Medics Restoration, LLC.
5.0(
6
)
Blown-In Insulation - Install or Upgrade

Serving Cornelius, NC and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Called Flood Medics to repair water damage behind hot water heater & bathroom.. David came & explained step by step on what the process was.. Kevin & Leander came promptly and worked diligently with covering up house items while they cleaned up & removed the wet walls? All 3 of these gentlemen were very professional, kind and courteous. Would highly recommend this company to anyone?"
Project
Project
Project
Project
Project

+3

11 neighbors recently requested a quote
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Drywall Insulation questions, answered by experts

Plaster that sags or bulges, shows extensive deep cracks, or is crumbling from water damage or simply time may need replacement. Plaster walls can look a little “worn” for a long time before they need replacing. The only real way to know if it needs a replacement is to hire a professional to assess the condition of the plaster.

Whether you can reuse a drywall anchor depends on its type, material, and how it is removed. Plastic anchors, such as expansion or self-drilling types, are generally considered single-use because they are designed to expand and are likely to break or become deformed upon removal. Metal anchors, like toggle bolts, are more durable and can often be reused if they are not damaged during extraction. However, with toggle bolts, the toggle mechanism can fall inside the wall when the bolt is removed, making it difficult to retrieve. If an anchor is damaged or must be cut for removal, it cannot be reused regardless of its material.

Your walls are likely cracking due to fluctuations in the temperature outside. Drywall tends to expand and contract when temperatures and humidity levels change, and this repeated movement can lead to cracks in your walls, particularly around door frames. If you have multiple diagonal cracks, you may want to have your foundation inspected, as cracks can also be a sign of a bigger issue.

Although they have similar applications, spackle and joint compound are not the same. Their primary differences lie in their composition, consistency, and ideal use cases.

Spackle is composed of gypsum and binding agents, making it thicker than joint compound. It dries quickly and is easy to sand, which makes it ideal for small wall repair projects like filling nail holes or patching minor damage.

Joint compound, also known as drywall mud, consists of limestone and gypsum. It is primarily used for large-scale projects, such as taping and finishing the seams on newly installed drywall. It tends to shrink more than spackle and can be more difficult to spread.

While both products can be used to fill small depressions and cracks, spackle cannot replace joint compound for taping and mudding new drywall. Conversely, you can often use joint compound for small patching jobs typically done with spackle.

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.

The Cornelius, NC homeowners’ guide to drywall insulation services

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