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

Plaster Repair FAQs, answered by experts

How long it takes to repair a ceiling depends on the extent of the damage. Patching a small hole might only take a few minutes, while repairing a water-damaged section of the ceiling could take hours. If there are structural issues, expect your ceiling repair to take several days or longer.

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

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.

Your walls are likely cracking due to fluctuations in the temperature outside. Drywall tends to expand and contract when temperatures and humidity levels change, and this repeated movement can lead to cracks in your walls, particularly around door frames. If you have multiple diagonal cracks, you may want to have your foundation inspected, as cracks can also be a sign of a bigger issue.

This depends on how much plaster is applied and in how many layers, but a decent estimate is around 150 square feet. If you are applying only two coats on a small wall, there is a chance you may only need one or two gallons for the entire project. If you are plastering a large living room wall with high ceilings, using one of the more involved techniques–like Scagliola–that requires several coats, expect the project materials costs to add up quickly. 

The Lakehead, CA homeowners’ guide to plaster repairs

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