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TRUSTED BY DOVER, NH HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon118
    Verified drywall insulation services reviews

Find Drywall insulation pros in Dover

Avatar for AJ Pro Green Insulation Corp
AJ Pro Green Insulation Corp
4.9(
7
)
Injection Insulation - Install

Serving Dover, NH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"We were referred to AJ Pro Green by a colleague so we had them come out for a free estimate. They showed up on time and were very professional. They insulated our basement during our remodel and we couldnâ t be happier. The job was done quickly, was within our budget, and communication was fantastic. We would highly recommended!"
Roof open cell - walls closed cell
Roof open cell - walls closed cell
Roof/Attic closed cell
Spray Foam Insulation
Spray Foam Insulation

+57

Response time2 hrs
Recommended by100%of homeowners
Avatar for N.E.E. Construction & Spray Foam
N.E.E. Construction & Spray Foam
4.1(
46
)
Blown-In Insulation - Install or Upgrade

Serving Dover, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"The work that was done installing spray foam underneath my four season room was fantastic! The owner and worker were absolutely fantastic. Great quality workmanship and very reasonably priced! I will definitely call this company for future work! Very professional, friendly, and clean. No messes were left behind. I already referred this company to friends."
Sub-Floor Basement
Basement Sub-Floor & Rim Joist
Rim Joist & Sub-Floor
Blown Insulation
Deck Build

+16

Response time2 days
3 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for ABI LLC
ABI LLC
5.0(
5
)
Blown-In Insulation - Install or Upgrade

Serving Dover, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I could not have been more pleased by the work and the professionalism and the cost and the results. ABI was the first company to respond to my request for bids on the project. They were at the house within days of the request and were knowledgeable about putting insulation over light fixtures embedded in the ceiling. The attic did not have access from within or outside the house and they problem-solved this in a way that was a great solution. They lay down mats so as not to dirty up the carpets and stairs and they wore gear to protect themselves from the insulation. MY house was cleaner when they left than when they arrived. All of the people working on the project were professional and knowledgeable and the cost was extremely reasonable. For the first time this winter, my house feels like it can hold the heat. Looking forward to this summer, because I'm betting it will also improve my air conditioning!"
Response time12 hrs
41 neighbors recently requested a quote
Avatar for Quality Insulation of Portsmouth
Quality Insulation of Portsmouth
5.0(
2
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Dover, NH and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Credit card accepted

"Quality Insulation of Portsmouth did two jobs for me: They added blown in insulation to my attic last fall and installed gutters plus leaf guards this spring. Both jobs were excellently done at a reasonable cost. I would certainly recommend them and will likely use them again in the future."
PHOTOS
PHOTOS
PHOTOS
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Response time2 days
19 neighbors recently requested a quote
Sonart Construction Corp.
2.3(
7
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Dover, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

SAV-ON INSULATION
4.5(
6
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Dover, NH and surrounding areas

In business since 1969

Emergency services offered

"Roland did an excellent job. He explained the things I needed and those that I didn't. He was right on time and finished the job in the time he stated. He was very professional and knew what he was doing. If you are looking for a straight shooter without any of the sales frills (and the larger cost) then Sav-On Insulation should be your choice."
Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
Avatar for Bouchard Drywall
Bouchard Drywall
5.0(
4
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Dover, NH and surrounding areas

In business since 2016

Free estimates

"I would highly recommend Jeremy for any home renovation needs. He is my go to contractor for anything I need done around my rental property and home. His attention to detail, punctuality, professionalism, and honesty sets him far apart from many other contractors I’ve worked with over the years. Jeremy has helped me with drywall (replacement and finishing), flooring, trim, and priming an entire unit for a repaint! Each time it was a pleasure working with him, and will definitely be working with him again in the future."
Final coat presand
Primed texted ceiling painted
Pre tape. Clean job site
Pre tape
2nd coat pre sand

+76

Recommended by100%of homeowners
Avatar for Forsythe Carpentry
Forsythe Carpentry
5.0(
42
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Dover, NH and surrounding areas

In business since 2009

Free estimates

"Todd is very professional, and easy to work with. He was amenable to my ideas, and gave me some of his own. He was easy to schedule the work with, and always gave me a heads up in when he’d be here to do the work, and if he was running late. Todd worked swiftly, but paid a lot of attention to detail. He had another man do the drywall needed for my bedroom, and he was great as well. The bedroom project was pretty straightforward as far as design goes. For the closets I had remodeled, I showed Todd some pictures from Pinterest that I liked as examples, and he did a fantastic job replicating the ideas into the space I had. Everything turned out exactly as I hoped, and I’d hire him again in the future. As far as estimates go, Todd was very fair, and was great about removing any costs that were less than anticipated. I had two great experiences."
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen

+50

Recommended by100%of homeowners
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Drywall Insulation questions, answered by experts

Plaster is denser, harder, and more porous than drywall, so it absorbs moisture differently. This means you’ll often need more prep work, such as thorough sanding, patching, and priming with a high-quality bonding primer. Additionally, you may need more coats of paint to achieve even coverage. While the process takes more time, it helps ensure a durable and professional-looking result.

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.

Costs depend on labor, material quality, wall preparation, and finishing requirements.

All plaster walls will crack over time due to normal house settling and expansion and contraction from temperature and moisture changes. Small, thin hairline cracks are generally not serious and are mostly a cosmetic issue. However, larger or more significant cracks can indicate structural problems.

Here's how to tell the difference:

  • Cosmetic Cracks: Cracks that are 0.5 cm (0.2 inches) or thinner are typically cosmetic.

  • Structural Cracks: Cracks wider than 0.5 cm, excessive or deep cracks, multiple cracks in the same area, or cracks that span around corners can signify a structural or foundation issue. Cracks along the joints where walls meet the ceiling also warrant attention.

For cracks wider than 0.5 cm, structural repair is needed. If a crack is 2.5 cm (1 inch) or wider, or if you notice any signs of a structural problem, it is best to contact a plaster repair professional to assess the damage.

You can put certain types of plaster over other types, but doing so isn't always the best idea. For example, putting a coat of gypsum over lime plaster is possible, but doing so will limit the lime plaster's breathability and potentially affect its performance.

Since cement plaster tends to leave a textured surface, no matter how much you smooth it, some people prefer to use gypsum plaster as a topcoat over cement plaster, creating a smoother surface.

The Dover, NH homeowners’ guide to drywall insulation services

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