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 plaster over broken plaster?

• <div><p>It&rsquo;s not a good idea to plaster over broken plaster (unless by broken you&rsquo;re referring to cracked, in which case that&rsquo;s perfectly fine). However, broken plaster can be a sign of a larger underlying issue like foundation damage or severe damage to the lath holding up the plaster, so it&rsquo;s worth investigating before you simply plaster on top of the damage. </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: Can I repair plaster ceilings myself?

• <div><p>You can <a href="https://www.angi.com/articles/plaster-ceiling-repair.htm">repair plaster ceilings yourself</a> after the cause of the ceiling damage has been addressed. However, the repair can easily take 5 hours and can be slightly challenging for those without previous experience. If you do decide to flex your DIY muscle, have a helper to help hold the ladder and pass you the tools for safety purposes.</p></div>

Q: What damages plaster?

• <div><p>Plaster is a pretty tough surface, but it can still sustain damage from things like bumping against it, water issues, dampness, extreme humidity changes, and plain old age. Most plaster walls last hundreds of years and will only be taken down to the base layer when major repairs are required. Being cautious around the wall, not placing furniture against it, and ensuring stable humidity are all great ways to reduce possible damage. </p></div>

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Verified Reviews for Plaster Repair pros in Hershey, NE

*The Angi rating for Plaster Repair companies in Hershey, NE 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 Hershey, NE 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 October 10, 2025

Reviewed in October 2025
Brandon was hired to remove a load-bearing wall in our kitchen to open up the area between the kitchen and living room. This involved building a temporary "false wall," removing the existing wall then, and laminating two 2 x 12's set on end as a header - secured above supports at each gap-end. ...
Seamless Drywall and Remodeling, LLC
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Reviewed in September 2025
I called to set up an appointment and he came the next day. Did an excellent job. Very nice friendly and professional. The cost was very reasonable. He also inspected our roof for us and took pictures so we could see any damage. We would definitely use him again.
The Gutter Man Seamless, LLC
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Reviewed in September 2013
Punctual on getting estimate for repairs. Very knowledgeable on product. Rates are good. <br />
H & H SEAMLESS GUTTERS
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Reviewed in September 2013
Asked for estimate and received in a timely manner. Contractor was truthful as to when work could be started. Had some slowdown with work but not contractors fault. Fault of the sub and ordering of correct windows/doors. Very pleased with work. We had a couple of problems and contractor came...
Steele Roofing & Construction
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Reviewed in August 2013
They were very responsive and made necessary repairs.
Hansen's Plumbing & Heating
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Reviewed in November 2012
Aron and his crew showed up on time on the agreed date, immediately got to work, and with the exception of a few small areas, the job was completed that day. He and his crew returned the next day to touch up some small areas, were done prior to 12 noon, and did a very commendable job. My yard...
Aron Geiger Construction
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Reviewed in May 2012
I had Chuck do a similar job last year, and you can't even see where the repair was made from the ground. All tasks were completed in a timely fashion, at a very reasonable price. Good skills with facia, sub-facia, framing and trim.I hope to use him on a much larger project very soon!!
Charles A Wolcott Construction
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Reviewed in November 2011
It's amazing what two guys can do for a house in less than 7 hours. Alan showed up right on time and immediately set up his equipment and got to work. He and his assistant spent the first couple of hours masking off the area around the counter tops: cupboards, appliances, walls, floors, etc....
Hard Tops
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Find Plaster repair specialists in Hershey

Carpenter Man Construction, LLC

New to Angi

Plaster - InstallPlaster - Repair

Serving Hershey, NE and surrounding areas

In business since 1985

Free estimates

Emergency services offered

Carpenter Man Construction, LLC is a well established business in Ogallala, offering the finest in craftsmanship and quality. When it comes to professionalism and customer service, we are unmatched in the region. For the best of the best call Carpenter Man Construction, LLC for your next project.

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Reliant Construction

New to Angi

Plaster - InstallPlaster - Repair

Serving Hershey, NE and surrounding areas

In business since 2000

Reliant Construction offers full service home improvement crews, including roofing, siding, windows, and gutters. We service Northern Kansas, Eastern Colorado and the entire state of Nebraska. We will travel to your job request site.

Plaster - InstallPlaster - Repair

Serving Hershey, NE and surrounding areas

In business since 2000

Free estimates

Burns Construction, is a full service general contracting firm operating in the greater SW NE area for many years. We pride ourselves in our attention to detail and our unsurpassed customer service. The quality of our work speaks for itself and we look forward to working with you on your next project.

Recommended by100%of homeowners

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Gold De Laux Residential Modifications

New to Angi

Plaster - RepairPlaster - Repair - For Business

Serving Hershey, NE and surrounding areas

In business since 1980

Free estimates

Here at Gold De Laux Residential Modifications, we specialize in many types of home improvement. We pride ourselves in doing quality work at a reasonable price. We have the expertise to handle a wide variety of projects with quality workmanship and service.

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All American Builders LLC

New to Angi

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

Serving Hershey, NE and surrounding areas

In business since 2019

Free estimates

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process

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Plaster Repair questions, answered by experts

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.

It’s not a good idea to plaster over broken plaster (unless by broken you’re referring to cracked, in which case that’s perfectly fine). However, broken plaster can be a sign of a larger underlying issue like foundation damage or severe damage to the lath holding up the plaster, so it’s worth investigating before you simply plaster on top of the damage.

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.

You can repair plaster ceilings yourself after the cause of the ceiling damage has been addressed. However, the repair can easily take 5 hours and can be slightly challenging for those without previous experience. If you do decide to flex your DIY muscle, have a helper to help hold the ladder and pass you the tools for safety purposes.

Plaster is a pretty tough surface, but it can still sustain damage from things like bumping against it, water issues, dampness, extreme humidity changes, and plain old age. Most plaster walls last hundreds of years and will only be taken down to the base layer when major repairs are required. Being cautious around the wall, not placing furniture against it, and ensuring stable humidity are all great ways to reduce possible damage.

The Hershey, NE 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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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.
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Jul 9, 2026Jul 9, 2026
How to Fix Cracks in Plaster Walls 3 Ways
Tired of looking at the crack down the wall? Plaster can be tricky to work with, but you can learn how to fix cracks in plaster walls with this guide.