Are cracks in plaster walls serious?

• <div><p>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.</p><p>Here's how to tell the difference:</p><ul><li><p><b>Cosmetic Cracks:</b> Cracks that are 0.5 cm (0.2 inches) or thinner are typically cosmetic.</p></li><li><p><b>Structural Cracks:</b> 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.</p></li></ul><p>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.</p></div>

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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: Can I use drywall primer on plasters?

• <div><p>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.</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>

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>

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Verified Reviews for Plaster Repair pros in Ethan, SD

*The Angi rating for Plaster Repair companies in Ethan, SD 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 Ethan, SD 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 14, 2026

Reviewed in April 2026
He built a really solid fence for us and it turned out exactly how we wanted. Showed up when he said he would, worked hard the whole time, and didn’t cut corners. Everything looks clean and put together right. He was easy to talk to and kept us updated while he was working. You can tell he cares...
Mason Drake
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Reviewed in May 2024
GP Maintenance Co. did multiple projects for me around my house. I had a 6 ft privacy fence installed around my property for my dogs to have a bigger yard, he fixed a screen for me, and did some drywall and painting. His communication was prompt and the jobs were done professionally. I will use...
The Grand Rising Group
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Reviewed in October 2023
Bill is an exceptional professional and perfectionist. He has done several jobs for us, kitchen, bathroom remodel along with some landscaping. Built a TV counsel for us. Completes each job fully, even paints.
Burkholder Builders LLC
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Reviewed in July 2023
He is an excellent worker and does excellent work. I recommend him.
Schmitz Construction, LLC
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Reviewed in June 2023
Jake did a great job cleaning up the outside of our old farmhouse! Very friendly and thorough. The siding looks like new!
Pressure Pros
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Reviewed in August 2022
Great company to work with. The owner was always quick to respond. We also had a chimney replaced. The fence and the chimney were outstanding quality. Next year we are hoping to have work done on our basement.
J W Construction, LLC
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Reviewed in February 2022
Hard working crew. Worked late to get job done. Will hire him again
Perez Construction LLC
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Reviewed in December 2021
He is very meticulous and Professional has the customers well being as first priority.
Service Tec Appliance Repair
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Reviewed in May 2021
Kat is a great person and did an excellent job. Fast, professional, and easy to deal with, I would definitely recommend and will be a returning customer.
KM Cleaning, LLC - Facebook
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Reviewed in September 2013
i take my vehicle in for service regularly and these guys know i'm a single lady and call me to tell me of any impending problems before they made any repair or replacement, They don't try and upsell me just let me know of anything that could be an issue. <br />
TMA TIRE MUFFLER ALIGNMENT
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Find Plaster repair specialists in Ethan

James Hand Construction

5.0(

)

Plaster - Install

Serving Ethan, SD and surrounding areas

In business since 1979

Free estimates

"Was one of the most professional men, and pleases me with their work in a timely manner."

Recommended by100%of homeowners

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Luis A Drywall LLC

New to Angi

Plaster - RepairPlaster - Repair - For Business

Serving Ethan, SD and surrounding areas

In business since 2025

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

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RC drywall service llc

New to Angi

Plaster - InstallPlaster - Install - For BusinessPlaster - Repair+1 more

Serving Ethan, SD and surrounding areas

Free estimates

Warranties offered

Small jobs welcome

Headline: Expert Drywall Specialist – 15+ Years of Experience\n\nI have been working in the drywall industry for over 15 years, delivering high-quality results on hundreds of residential and commercial projects. My expertise covers the entire process: from professional installation (hanging) to flawless finishing (taping, mudding, and sanding) and expert repairs for water damage or holes\nI am based in South Dakota and surrounding areas and am willing to travel to ensure your project is handled by a pro. My special skills include achieving Level 5 smooth finishes and custom textures that make any wall look brand new.\nWhy hire me? My work philosophy is built on precision, honesty, and extreme cleanliness. I treat every home as if it were my own, ensuring punctuality and a seamless finish that is ready for paint. I don’t just fix walls; I provide peace of mind through expert craftsmanship.\n

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Square Construction

New to Angi

Plaster - InstallPlaster - Repair

Serving Ethan, SD and surrounding areas

In business since 2024

Free estimates

Offers commercial services

Square Construction is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

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Knight Handyman Services

New to Angi

Plaster - RepairPlaster - Repair - For Business

Serving Ethan, SD and surrounding areas

In business since 2018

Free estimates

Over 30 years experience.

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Plaster Repair questions, answered by experts

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.

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.

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.

Regular inspections and cleaning to prevent moisture or pest issues.

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.

The Ethan, SD homeowners’ guide to plaster repairs

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How Much Does It Cost to Apply Venetian Plaster? [2026 Data]
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What Is Behind Your Lath and Plaster Walls?
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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.