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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon180
    Verified plaster repairs reviews

Top-Rated Plaster repair specialists in Derby - Updated Nov 2026

Quality Restoration, LLC
4.7(
34
)
Plaster - RepairPlaster - Repair - For Business

Serving Derby, CT and surrounding areas

Approved

In business since 2010

Free estimates

Customers say: Quick response

"Arrived on time for what I thought would be an easy fix for an overhead ceiling fixture. He had to figure out the wiring setup and traced it down to a faulty switch. Elvin was pleasant to deal with neat and efficient."
Response time7 hrs
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Economy Handy Carpenter, LLC
Economy Handy Carpenter, LLC
4.6(
331
)
Plaster - InstallPlaster - Repair

Serving Derby, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Job completed as promised. Was more than drywall and plaster. Included insulation, painting, trim, staining, radiator covers, electrical outlet, and great clean-up. Always on time and returned calls immediately. Suggested small improvements to planned job which enhanced the finished work. Would definitely call him again for future projects. An all-in-one home improvement expert!"
Response time10 hrs
65 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Filippo's Painting, LLC
Filippo's Painting, LLC
4.1(
29
)
Plaster - Repair - For Business

Serving Derby, CT and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Excellent work. Did not rush the job and addressed a lot of the details such as proper prep, caulking and minor repairs of siding where possible. Treated property with respect and cared to provide a quality outcome. Could not be happier with the product and the value."
Suede Wall Finish
 Eggshell
 floors and walls
The Pearl at Longshore
Refinished Deck

+67

Response time10 hrs
Recommended by90%of homeowners
Avatar for Overstate Roofing Services Inc.
Overstate Roofing Services Inc.
4.2(
79
)
Plaster - RepairPlaster - InstallPlaster - Install - For Business+1 more

Serving Derby, CT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"5 Stars ! I hired Overstate multiple times . Yani was so polite and professional , I needed to replace my plaster ceilling in 4 different rooms . It started in a small project and slowly I decided working with Yani on a new bathroom remodel , framing and other drywall services . I know that overstate does roofing as well , I?ll definitely consider them when I replace my new roof ."
Roof replacement
Roof replacement
1817 neighbors recently requested a quote
Recommended by1%of homeowners
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Plaster Repair FAQs, answered by experts

Technically speaking, you can use drywall primer over plasters. However, oil-based primers work the most effectively on wall plasters. Meanwhile, water-based primers work just as well with drywalls. Nowadays, there are also universal primers suitable for drywall and plaster. Overall, you will be fine as long as you are using a trustworthy brand.

Applying plaster to a wall will usually cost between $2 and $10 per square foot for both the material and labor. The cost will vary based on the quality of the plaster you’re using and whether or not prep work is required before the work begins. Wall prep can add up to about 10% to your total costs. Plastering exterior walls can be more expensive in many cases because they are taller and require scaffolding and safety equipment.

This depends on how much plaster is applied and in how many layers, but a decent estimate is around 150 square feet. If you are applying only two coats on a small wall, there is a chance you may only need one or two gallons for the entire project. If you are plastering a large living room wall with high ceilings, using one of the more involved techniques–like Scagliola–that requires several coats, expect the project materials costs to add up quickly. 

Plaster can be a difficult DIY to master, especially if you plan to plaster an entire room, rather than patch a small area. Before you begin a plaster DIY project, you need to know which tools and type of plaster to use. It's also important to know how to prepare the surface and apply the plaster for a smooth finish. If that all sounds like a lot of work, you may prefer hiring a local plaster repair contractor to do the job.

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.

The Derby, CT homeowners’ guide to plaster repairs

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