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TRUSTED BY DEMAREST, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon76
    Verified plaster repairs reviews

Find Plaster repair specialists in Demarest

MNM Group Inc.
4.9(
162
)
Plaster - RepairPlaster - InstallPlaster - Install - For Business+1 more

Serving Demarest, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Free estimates

Emergency services offered

"Turned out there was no plaster lath to plaster over, so sheetrock was used to repair ceiling. MnM also did some plaster crack repairs. Results look excellent. Ready to paint. MnM was extremely punctual, knowledgeable about work required. Started and finished as expected."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for NJ Pro Home Improvements
NJ Pro Home Improvements
4.9(
17
)
Plaster - InstallPlaster - Repair

Serving Demarest, NJ and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Juan and his team did an amazing job repairing the drywall in our basement. They were knowledgeable, precise in their work, and very professional. It was a pleasure doing business with Juan and his team."
Front Paint Completed
Finish Product
Orange Top Color Finished
Bathroom Remodel
Epoxy Completed

+56

Response time12 hrs
Response rate89%
Recommended by87%of homeowners
Avatar for Elite Work Home Improvement LLC
Elite Work Home Improvement LLC
5.0(
174
)
Plaster - InstallPlaster - Repair

Serving Demarest, NJ and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"When Elite Work Home Improvement repaired my roof after a storm, they exceeded my expectations. Their team responded quickly and thoroughly assessed the damage. They provided a comprehensive repair plan and carried it out expertly. After completing the repairs, the team worked efficiently and left my property clean and tidy. Their professionalism, attention to detail, and dedication to customer satisfaction have all impressed me. I would definitely hire them again if I needed roofing in the future."
Roof/Chimney Projects
Roof/Chimney Projects
Roof/Chimney Projects
Roof/Chimney Projects
Roof/Chimney Projects

+201

Response time7 hrs
Response rate99%
Recommended by98%of homeowners
Avatar for Overstate Roofing Services Inc.
Overstate Roofing Services Inc.
4.3(
62
)
Plaster - RepairPlaster - InstallPlaster - Install - For Business+1 more

Serving Demarest, NJ and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"We had terrible damages to our roof from the recent storm, and needed it repaired urgently. Ice dams also needed to be cleared off to prevent further leaking and damages. I saw that this company had great reviews, when they reached out they made my repair and consultation urgent and withing 2 days my repairs were completed. quality products used, they were professional and made sure to show pictures and video of the before and after. It was a pleasure working with their team."
Roof replacement
Roof replacement
1391 neighbors recently requested a quote
Recommended by1%of homeowners
Avatar for Palma Construction
Palma Construction
5.0(
19
)
Plaster - Repair

Serving Demarest, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Credit card accepted

"Mike is very friendly and courteous, as well as quite dedicated to doing a good job. When installing our new attic stairs and door, he spent numerous hours over two days. I saw him place the weatherstripping perfectly, and both this and the paint look excellent. As he works, he explains the steps of what he is doing. After finishing, he called later on to make sure that there were no problems. He is easy to contact and returns calls. I would therefore highly recommend Mike and Palma Construction."
Basement Mini Renovation
Basement Mini Renovation
Basement Mini Renovation
Basement Mini Renovation
Basement Mini Renovation

+105

Response time4 hrs
Response rate96%
1 neighbors recently requested a quote
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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.

Yes, you can speed up the time it takes for plaster to dry, but it's important to do so carefully to avoid issues like cracking or crumbling. Proper ventilation is key; open a window or use a fan to circulate air in the room. Heat can also accelerate drying, but be cautious, as too much heat can cause the plaster to dry too quickly and crack. Check the plaster's packaging for the recommended drying temperature and set the room's thermostat accordingly. While managing humidity is important, avoid using a dehumidifier, which can remove moisture too aggressively and result in crumbly plaster.

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’ll commonly find drooping plaster ceilings in older homes. Improper installation, foot traffic, and water damage—often from a leaky roof or a broken pipe—can also cause plaster ceilings to sag.

While it is possible to repair minor plaster cracks or holes yourself, it is generally not recommended for larger jobs or if you want a professional result. Plaster repair can be difficult in practice; proper wall preparation and achieving a smooth, seamless finish that blends with the existing wall requires experience, especially on textured surfaces. Hiring a professional ensures the repair will be durable and last longer, potentially saving you money over time. A pro can also determine if the cracks are from normal expansion or a more serious underlying issue.

Plastering and skimming are two different techniques for finishing walls. Plastering involves applying a thick layer of a plaster mixture—typically containing gypsum, lime, cement, sand, and water—to create a new surface. This process often requires multiple coats and is used for repairing significant damage or creating decorative textures. Skimming, on the other hand, is a technique that involves applying a thin layer of drywall compound or joint compound over an existing surface to smooth it out, covering minor imperfections, small cracks, or uneven textures for a polished look. Plastering is generally more costly and labor-intensive than skimming. Although some people use the terms interchangeably, they refer to different processes and materials.

The Demarest, NJ homeowners’ guide to plaster repairs

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