How do I know if my plaster needs replacing?

• <div><p>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.</p></div>

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Q: How long does Venetian plaster last?

• <div><p>Venetian plaster is a highly durable wall finish that becomes a rock-like substance once dried, making it last longer than most other wall finishes. Its lifespan can range from decades to centuries, potentially lasting a lifetime. Key factors influencing its longevity include the quality of the initial application, whether it's properly sealed against moisture, and how the wall is maintained and treated (e.g., how often it is touched or bumped). Due to its mineral content, it can also develop a patina over time.</p></div>

Q: Can I just paint over hairline cracks in plaster?

• <div><p>You can technically just paint over hairline cracks in plaster since these cracks are often harmless, but this will mostly be a waste of paint. Paint will only hide the hairline crack for a few months before it shows up again. The best solution is to repair the crack with flexible filler or joint compound before repainting.</p></div>

Q: Can you apply new plaster over an existing plaster surface?

• <div><p>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.</p></div>

Q: What maintenance is recommended after a wall repair?

• <div><p>Regular inspections and cleaning to prevent moisture or pest issues.</p></div>

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Verified Reviews for Plaster Repair pros in Plain, WI

*The Angi rating for Plaster Repair companies in Plain, 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 Plain, 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 April 08, 2022

Reviewed in April 2022
Mad City did a fantastic job replacing our front door and repairing some damaged areas! The staff was friendly, courteous and prompt. They also did a great job with clean up and it all looks great!
Mad City Windows & Baths
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Reviewed in April 2021
Fabio and his team are pros. Responded quickly, communicated thoroughly. He did an excellent analysis of the leaking problem, which was not readily apparent in a roof like mine. Clearly he was concerned about doing quality work and about the cost. He showed me pictures of around my chimney where...
The Facility Solutions Company
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Reviewed in March 2021
About 2 weeks ago (2/17) we woke to a burning plastic smell coming from our furnace. Modern came up in a HVAC near me search so we called them. They did show up quickly to service our furnace. I’ll give them that. The tech that came did a less than thorough service on the unit. The tech found...
Modern Heating & Cooling Inc
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Reviewed in June 2015
Terrible work. Had then do a small job at our house and it was a mess. Had to get others to repair their work. Not recommended. Will not hire again. <br />
Mounds Creek Siding
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Reviewed in September 2014
Very courteous and professional electricians. Two young men came to complete some electrical work we had already started and installed 2 additional outlets into a bedroom. They did an amazing job with cutting through the plaster and lath walls to run the new outlets. You would have thought...
MAYBERRY ELECTRIC
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Reviewed in June 2014
Everything went great. Jon Baker came out to do the estimate and discussed options with us. He was the only one of three companies that agreed fixing the crack rather than putting in a drain tile system and sump pump was a reasonable solution. <br /> He returned a month later to do the repair...
Dry Otter Basement Waterproofing LLC
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Reviewed in June 2014
I can't say enough good things about M-T Enterprizes. This lovely old house had never had it's floors done. The rugs had been glued to the floor, we'd had walls done so there was plaster dust, there was decades of old paint, holes cut in the floor for who knows what -generally use and abuse over...
M-T Enterprizes
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Reviewed in February 2013
I was refinancing my home and wanted to be sure that there weren't major repairs that I should be allotting money for and also wanted to fix little things of concern before they became major problems. When I first called Jon he was able to tell me how long the inspection would take by the...
Accredited Home Inspection Services LLC
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Reviewed in April 2012
A high wind had torn the aluminum fascia away from part of my house. I selected Quality Exteriors based on their Angie?s List ratings. Since I am an over-the-road truck driver, I was not home but spoke with Glenn Killom and informed him of my issue. At the same time, I told him there were...
Quality Exteriors
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Reviewed in September 2009
This is BY FAR the best company I have ever dealt with. Ramiro came over for an estimate a day or two after I contacted him. His reviews were good, and he sounded extremely confident and "to the point". He gave me an estimate, that would replace the roof, except for any plywood needed. He said...
RQ Roofing
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Find Plaster repair specialists in Plain

Assured Quality Drywall & Painting

5.0(

)

Serving Plain, WI and surrounding areas

Free estimates

Emergency services offered

Warranties offered

"Assured quality did an amazing job with remodeling my home. The original work in the home was terrible from the paint to the trim. Assured quality made sure I noticed the difference and was so detail oriented! I will be sure to call Juan again if I ever need any further renovations done in my house!"

+25

Recommended by100%of homeowners

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Totally PlasterD LLC Facebook

New to Angi

Serving Plain, WI and surrounding areas

In business since 2020

Free estimates

8-5 M-F saturdays sundays8-5

Serving Plain, WI and surrounding areas

In business since 2002

Free estimates

Emergency services offered

We have over 17 years experience with plaster and drywall installation . We never leave a job unless it's complete. We have flexible hours with competitive pricing. Give us a try!

Recommended by100%of homeowners

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Danz Custom Homes, LLC

0.0(

)

Serving Plain, WI and surrounding areas

In business since 1988

Free estimates

Warranties offered

Danz Custom Homes, LLC., offers 20 plus years experience in all the phases of design-build construction and remodeling. Consistent professionalism and an extensively factory trained staff.

Recommended by20%of homeowners

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Plaster Repair questions, answered by experts

Venetian plaster is a highly durable wall finish that becomes a rock-like substance once dried, making it last longer than most other wall finishes. Its lifespan can range from decades to centuries, potentially lasting a lifetime. Key factors influencing its longevity include the quality of the initial application, whether it's properly sealed against moisture, and how the wall is maintained and treated (e.g., how often it is touched or bumped). Due to its mineral content, it can also develop a patina over time.

You can technically just paint over hairline cracks in plaster since these cracks are often harmless, but this will mostly be a waste of paint. Paint will only hide the hairline crack for a few months before it shows up again. The best solution is to repair the crack with flexible filler or joint compound before repainting.

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.

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.

Regular inspections and cleaning to prevent moisture or pest issues.

The Plain, WI homeowners’ guide to plaster repairs

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

See all articles

Deirdre Sullivan
•
Jul 9, 2026Jul 9, 2026
How Much Does Plaster Repair Cost? [2026 Data]
Plaster repair costs are determined by the size and type of damage. Discover why some fixes you can DIY and why some require a pro’s help.
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•
Jul 31, 2026Jul 31, 2026
How Much Does Plastering Cost? [2026 Data]
The cost of plastering walls and ceilings depends on the room size and ceiling height. Our tips can help you estimate an accurate cost.
Stephanie Mickelson
•
Jul 10, 2026Jul 10, 2026
How Much Does It Cost to Apply Venetian Plaster? [2026 Data]
Venetian plaster can add depth and texture to your aesthetic. Learn how much Venetian plaster costs based on factors like square footage and whether you hire a pro to help.
Angi
•
May 21, 2026May 21, 2026
How to Hire a Plaster Repair Professional
Finding a qualified plaster repair pro? Learn how to hire the right specialist, what questions to ask, and what to expect for your project.
Katy Willis
•
Jul 20, 2026Jul 20, 2026
What Is Behind Your Lath and Plaster Walls?
You can find plaster walls in a lot of older homes. What’s behind these walls—whether that’s lath or calcimine—can have an impact on how long they last. Finding out the age of your house can help you determine what you’re dealing with.
Jamie Cattanach
•
Jul 9, 2026Jul 9, 2026
Who Does Plaster Work and What Is Their Job Like?
Who does plaster work? A plasterer, of course—one who’s gone through years of training to master this subtle construction art. Here’s what you need to know.