Are cracks in plaster walls serious?

• <div><p>Small hairline cracks in plaster walls are not serious and are mostly cosmetic, but larger or widespread cracks indicate structural problems that need repair. </p><ul><li><p><b>Cracks 0.5 cm (0.2 inches) or thinner: </b>Cosmetic cracks you can repair if desired.</p></li><li><p><b>Cracks wider than 0.5 centimeters or widespread cracks: </b>Structural repair is needed, either DIY or by a pro.</p></li><li><p><b>Cracks 2.5 centimeters (1 inch) or wider: </b>Contact a <a href="https://www.angi.com/nearme/plaster-plaster-repair/">plaster repair professional</a>.</p></li></ul><p>Watch for large, deep cracks, multiple cracks in the same area, and cracks along the walls where they meet the ceiling. Repair these cracks to prevent further damage.</p></div>

Get matched with top plaster repair specialists in Circle, MT

Q: How do you fill bad plastering?

• <div><p>If the holes in the plaster are small, you can fill them with layers of patching plaster until they&rsquo;re filled. After it dries, you can sand the plaster and paint over it. If the hole is much larger, consider using bonding plaster first and then a layer of patching plaster, completing the process with sanding and a layer of paint. </p></div>

Q: How do pros address common wall issues like cracks or bulging?

• <div><p>Professionals diagnose underlying causes, such as structural shifts or moisture problems, and apply appropriate solutions like reinforcement, patching, or sealing. These measures restore wall integrity and prevent recurrence, ensuring long-term stability.</p></div>

Q: Why is my plaster ceiling sagging?

• <div><p>Plaster ceilings can sag for several reasons. In some cases, the plaster and other building materials shift and come apart over time, which is why you&rsquo;ll commonly find drooping plaster ceilings in older homes. Improper installation, foot traffic, and water damage&mdash;often from a leaky roof or a broken pipe&mdash;can also cause plaster ceilings to sag.</p></div>

Q: How do I know if I have plaster walls?

• <div><p>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 <a href="https://www.angi.com/articles/how-to-tell-drywall-vs-plaster.htm">practical ways to tell if you have plaster walls</a>, including the following: If you knock on the wall and it feels solid, not hollow, if you can&rsquo;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.</p><p>If you have an unfinished basement or attic, you could examine the backs of any finished walls to check, too.</p></div>

Enter your ZIP and get matched with up to 5 pros

Need a pro for your plaster repair project in Circle, MT?

Select your specific project to find the pro for you.

Verified Reviews for Plaster Repair pros in Circle, MT

*The Angi rating for Plaster Repair companies in Circle, MT 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 Circle, MT 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 November 23, 2025

Reviewed in November 2025
I would highly recommend Diamond Roofing and solar. They are very professional and explained all aspects of the shingle and gutter repair/replacement. All the personnel were respectful which set my mind at ease. Before hiring them, they came out and inspected the job explaining everything and...
Diamond Roofing and Solar, LLC
Request a quote
Reviewed in January 2024
The team at Paul Davis were prompt in responding with help, accessed the water damage, took steps to prevent more damage, cleaned up, repaired the area so that there would be no worry of mold or future water issues.
Paul Davis Restoration
Request a quote
Reviewed in April 2023
Highly skilled, professional plumber. Treated my wife and I with the upmost dignity and respect. Tobin did a major repair of our homes boiler and heating system. System needed major repair due to damage from frozen pipes. We would highly recommend Bridger Creek Plumbing.
Bridger Creek Plumbing, LLC
Request a quote
Reviewed in March 2023
Best customer service! I called Paul to repair our Monogram refrigerator because it stopped working. Paul was very knowledgeable, and he was able to identify the problem quickly. He ordered a new part and in few days he came back to installed it. The refrigerator works perfectly and we are very...
Big Horn Appliance Repair and Maintenance
Request a quote
Reviewed in March 2021
Very knowledgeable of his trade. Very personable customer service. He completed the job timely and efficiently and educated on the cause of the electrical defect he fixed. His fair/advantageous cost along with his friendly and kind service was a welcomed relief when hiring for a repair and...
Diaz Electric
Request a quote
Reviewed in September 2013
He arrived after our agreed time however called before and explained that he'd be late. This clearly demonstrates that he respects my time and me. He carefully placed drop cloths around my woodstove, then checked around the pipe for safety issues. He noted and, using some fiberglass...
Buffalo Chimney & Stove Installation
Request a quote
Reviewed in August 2013
I have to take my car back because he found other repairs that need to be done. I like that I can get in fast and they do a really thorough job. I've used him many times before and I've never had any problem with any of the services I've gotten from them.
JR'S REPAIR INC
Request a quote
Reviewed in May 2013
Not happy with the results. Most of the treads are now bowing upward and peeling off the supporting structure. Treads were nailed instead of screwed and nails are starting to pop up. The treads are starting to split. He should have used screws and there was something grossly wrong with...
SOUTH TEXAS SIDING
Request a quote

Get matched with top plaster repair specialists in Circle, MT

Enter your ZIP and get matched with up to 5 pros

Need a pro for your plaster repair project in Circle, MT?

Drywall Repair

Handyman for Multiple Small Project Service

Plaster Repair

Verified Reviews for Plaster Repair pros in Circle, MT

Find Plaster repair specialists in Circle

Norwest Contracting

Norwest Contracting

Kevin Collom Plastering

Kevin Collom Plastering

Montana Flexteriors 2

Montana Flexteriors 2

A1 Tape and Paint

A1 Tape and Paint

ABC Nationwide Painting

ABC Nationwide Painting

Ameri Paint Precision

Ameri Paint Precision

LMN Construction LLC

LMN Construction LLC

MAGUIRE DRYWALL & PLASTERING

MAGUIRE DRYWALL & PLASTERING

The Circle, MT homeowners’ guide to plaster repairs

How Much Does Popcorn Ceiling Removal Cost? [2025 Data]

How Much Does a Coffered Ceiling Cost?

How Much Does Ceiling Repair Cost? [2025 Data]

7 Popcorn Ceiling Questions You Need to Ask About Application, Removal, or Cleaning

How to Find a Stud in a Plaster Wall: 4 Methods to Try

Can You Sand Plaster? Yes—But You Might Not Want To

Find Plaster repair Pros in other cities near youNot finding what you are looking for in Circle? Check surrounding areas for Plaster repair specialists.

Which Plaster repair task are you tackling?Find Circle Plaster repairs on Angi who specialize in any of these tasks