close
Advertisement
Shop Now
Magazine
 

How to Repair Damaged Plaster

Step-by-step DIY guide on repairing plaster cracks and holes in your walls or ceiling.

How to Repair Damaged Plaster

What you'll need

  • Drop sheets
  • Dust mask, work gloves and goggles
  • Scraper
  • Spray bottle with water
  • Bonding and sealing agent
  • Carrying board (to hold plaster)
  • Plaster
  • 100mm and 150mm broadknives
  • Sanding block
  • Primer and paint
  • Filling knife
  • Sanding float and abrasive paper
How to Repair Damaged Plaster

STEP 1
To repair a plaster crack, first move furniture out of the area and put down drop sheets. Wearing a dust mask, eye protection and work gloves, rake out any loose material with a suitable scraper.

How to Repair Damaged Plaster

STEP 2
Dust the inside of the crack and lightly mist with water; wait until it's absorbed. Mix a bonding agent; let dry. Apply the plaster and fill the hole. Sand when the plaster is completely dry. Spot-prime and paint.

How to Repair Damaged Plaster

STEP 3
To repair a hole, remove any loose or crumbling plaster with a scraper. Dust inside of the hole and mist with water; wait until it's absorbed. Apply a bonding agent, and allow about 45 minutes to dry

How to Repair Damaged Plaster

STEP 4
Using a 100mm broadknife, fill the hole with plaster from the centre out to a depth just below the wall surface. Before the plaster sets, scratch surface with a filling knife to create a crosshatch pattern. Let dry.

How to Repair Damaged Plaster

STEP 5
Using a 150mm broadknife, apply a finishing coat (use skim-coat if available). Check wall is level and smooth. If necessary, apply another thin coat of plaster. Sand lightly with medium abrasive paper.



More in DIY Projects

40 Incredible Christmas Tree Decorating Ideas
8 Of The Most Inventive And Original Christmas Tree Ideas

8 of the Most Inventive and Original Christmas Tree Ideas

Looking for different ways to decorate your home this festive season? Why not consider a novelty Christmas tree?
Make Your Own Hanging Christmas Tree Ornaments

Make Your Own Hanging Christmas Tree Ornaments in 5 Easy Steps

Make personalised Christmas ornaments using simple decoupage techniques.
8 Homemade Christmas Food Gifts

8 Edible Christmas Gifts You Can Make at Home

Save money and have a lot of fun by making homemade treats to give as gifts this Christmas.
5 Easy Ways to Make Your Garden a Great Home for Your Pets

5 Easy Ways to Make Your Garden a Great Home for Your Pets

Making your garden pet friendly isn’t as tricky as you think.
Advertisement