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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon10
    Verified plaster repairs reviews

Verified Reviews for Plaster Repair pros in Knapp, WI

*The Angi rating for Plaster Repair companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plaster Repair needs.

*The HomeAdvisor rating for Plaster Repair companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plaster Repair needs.

Last update on January 22, 2026

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

Severson, Inc.
5.0(
1
)
Plaster - RepairPlaster - Repair - For Business

Serving Knapp, WI and surrounding areas

In business since 2003

Free estimates

Warranties offered

"My professional window installers were prompt, courteous, friendly and most importantly knowledgeable. They were able to answer my concerns and questions before during and after installation. The rooms were left clean and orderly. The yard and carport where the windows were stored after delivery by Lowe's was spotless, the old windows, trash and debris were gone! Very impressed! When we signed the paperwork for an installer we didn't know we were getting an entire company with Severson, Inc. Thank You Denise Capps"
Looking Down to the Kitc
Kitchen from Living Room
View from Loft
Kitchen
Recommended by100%of homeowners
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Avatar for The Duey Fix-Em-All System
The Duey Fix-Em-All System
5.0(
1
)
Plaster - Repair - For Business

Serving Knapp, WI and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Very professional! Got the job done in time, great with communication and status updates. He was very informative also!"
Response time20 mins
Recommended by100%of homeowners
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Galindon Drywall
New to Angi
Plaster - Install - For BusinessPlaster - Repair - For Business

Serving Knapp, WI and surrounding areas

In business since 2016

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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. \n

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J.V & Son’s Drywall
New to Angi
Plaster - InstallPlaster - Repair

Serving Knapp, WI and surrounding areas

JV and Sons Inc. is a trusted drywall company with over 30 years of hands-on experience and two generations of craftsmanship. Backed by a BBB A+ rating, the company is known for delivering reliable, high-quality drywall work on every project.\n\nFrom drywall repairs to new construction, JV and Sons Inc. handles each job with precision, professionalism, and attention to detail. Services include patchwork, remodeling, full drywall installation, finishing, and texture matching—always completed with clean results and dependable timelines.\n\nNo shortcuts—just honest work and quality you can count on. Contact JV and Sons Inc. today for professional drywall services done right the first time.

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M&E Interiors LLC
New to Angi
Plaster - Install - For BusinessPlaster - Repair - For Business

Serving Knapp, WI and surrounding areas

In business since 1995

Free estimates

Here at M and E Interiors LLC we are without a doubt the best at what we do, and it always shows in our work. We take pride in our professionalism, our employees are always timely and dressed professionally. With over 40 years of experience in our trades, you can be confident that you are hiring the best company to provide your Painting and Interior finish needs. We look forward to earning your business!

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Plaster Repair FAQs, answered by experts

The short answer is yes, a sagging plaster ceiling is dangerous. Sagging plaster on a wall is something you should fix immediately, but it isn’t a major concern. If the same type of sagging occurs on a ceiling, however, you could be in danger of your ceiling falling in large chunks. When plaster sags, it loses its strength and ability to hold itself up. The bonds that hold it together are strong, though, so if a sagging area falls, it will take large pieces down with it.

Ceiling-mounted curtains won’t damage the ceiling if they’re installed properly. Using the right anchors or securing the brackets into joists will ensure the curtain weight is properly supported and prevent damage. However, overtightening screws, using weak anchors, or repeatedly removing and reinstalling hardware in the same spot can cause cracking or sagging over time. In that case, you might have to call a pro for ceiling repair.

Yes, you can apply new plaster over an existing plaster surface, such as a wall or ceiling, provided the old plaster is in good condition. Before you begin, check the stability of the existing plaster. The surface must be clean, free of loose material, and have no peeling paint. It is also recommended to roughen the surface slightly to promote adhesion. For older plaster, applying a base coat like a PVA emulsion or a specific bonding agent or primer is crucial. This step makes the existing plaster less porous and ensures the new and old layers adhere properly for a smooth, long-lasting finish.

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.

While you should consult with a ceiling professional for larger cracks, especially if you’re not sure what’s causing your ceiling to crack, you can certainly try to repair small cracks on your own. If you’re up for the task, here’s how to repair ceiling cracks for $150 or less.

The Knapp, WI homeowners’ guide to plaster repairs

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

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