Symptoms
- Torn drywall paper or gouges where tile was removed
- Leftover adhesive or mortar residue stuck to the wall
- Wall surface uneven where tile thickness used to be
Likely causes
- CommonTile adhesive pulling off the drywall paper facingStrong mastic or thinset can take the paper layer with it when tile is removed.
- CommonAggressive scraping during tile removalUsing too much force with a scraper can gouge into the drywall core.
- PossibleOld drywall not rated for a wet area originallyStandard drywall behind a sink or stove backsplash can be more prone to damage from moisture over the years.
What to do
- Remove any remaining tile adhesive or mortar with a scraper, working gently to avoid more damage.
- Assess how much paper facing or drywall core is missing.
- For minor paper damage, seal the area with a coat of primer before skim coating.
- Apply a skim coat of joint compound over damaged areas, feathering into the surrounding wall.
- Let dry and sand smooth, checking for flatness where the tile used to sit.
- Consider using moisture-resistant drywall or cement board if replacing a section behind a sink or stove.
- Prime and paint, or prepare the surface for new tile or backsplash material.
Tools and parts
- Scraper
- Taping knife
- Sandpaper
Joint compoundSearch: “joint compound for skim coating”
Moisture-resistant drywallSearch: “moisture resistant drywall panel”
When to call a pro
Call a contractor if you're planning to install new tile, since they can ensure the substrate is properly prepped and waterproofed.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.