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  • Verified reviews icon76
    Verified plaster repairs reviews

Top-Rated Plaster repair specialists in Timonium - Updated Nov 2026

Avatar for PatchMaster North Baltimore
PatchMaster North Baltimore
5.0(
5
)
Plaster - RepairPlaster - Repair - For Business

Serving Timonium, MD and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

PatchMaster Baltimore North specializes in professional drywall, plaster and ceiling repair for homes and businesses throughout Baltimore and surrounding communities. We repair holes, cracks, water-damaged drywall, nail pops, damaged ceilings and textured surfaces, with expert texture matching and color-matched painting for a seamless finish. From small patches to larger drywall repairs and installation, our licensed and insured team delivers clean, efficient workmanship with dust-minimizing practices. Free estimates available.

Our Gallery Photos
Ceiling Repair
Wall Repair
Crack Repair
Wall Restoration

+4

2 neighbors recently requested a quote
Avatar for Pablo & Jr Construction
Pablo & Jr Construction
5.0(
9
)
Plaster - Install - For BusinessPlaster - RepairPlaster - Repair - For Business

Serving Timonium, MD and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Pablo worked with me to customize the fence and deck replacement following storm damage. He repaired things I hadn't known were wrong and worked with my neighbors to ensure they were not losing property use during or after construction."
Life Science Logistics
Life Science Logistics
Life Science Logistics
Life Science Logistics
Life Science Logistics

+2

Response time6 hrs
33 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Ace Handyman Services - Columbia
Ace Handyman Services - Columbia
3.5(
6
)
Plaster - Repair

Serving Timonium, MD and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

At Handyman Matters of Columbia, we provide home and business owners with the highest quality craftsmanship. We are happy to do all the little things on your �honey-do list� and take on larger jobs.

 Ceramic Tile
 Garage Door Opener Replacement
 Window Screen Repair
 Bathroom Remodeling
Recommended by33%of homeowners
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Plaster Repair FAQs, 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.

The tool you use to sand plaster will depend on the size of the project. If you’re just working on a small section of your wall to get rid of an uneven spot on the surface, hand-sanding might work. However, for larger projects, a drywall sander can make a huge difference when it comes to both time and elbow grease—and an orbital sander can help for detailed areas such as around ceiling fans.

Drying alone can take 1 to 4 hours to dry to the touch per plaster layer, but some types of plaster take several hours longer to dry. However, this doesn’t mean the job is done because plaster doesn’t fully harden until it cures, which can take a few days to a couple of weeks. It may take even longer if you’re building a new, pretty thick plaster wall. Allow the plaster to cure before painting it.

Yes, you can install drywall over plaster, but there are important factors to consider. While it can create a smooth, flat surface, it is often not the best approach. Installing drywall over plaster will increase the wall's thickness, which can cause issues with existing window and door frames that may no longer fit. You might also need to adjust power outlets to keep them accessible. A better, though more expensive, option is to remove the old plaster and lath entirely before installing new drywall. Drywalling directly over plaster seals in the old material, and if any problems arise later, you will need to remove both layers down to the structural beams for repairs. Given the potential complications, this job is best handled by professionals.

Costs depend on damage size, labor rates, and whether additional services like painting are required.

The Timonium, MD homeowners’ guide to plaster repairs

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