You can sometimes paint over wallpaper that is firmly attached to a sound, dry wall. The decision depends on the paper, its condition and a compatible coating system. Paint changes the colour. It does not remove embossed texture, repair failing plaster or solve damp.
Before buying paint, decide what you want the finished wall to look like. Keeping a sound textured paper may suit a simple colour change. If you want a plain surface with no visible pattern or seams, discuss removal and assessment of the wall beneath instead.
Check the whole wall
Look along joins and around corners, windows, radiators and damaged areas. Note lifting edges, bubbles, tears, staining and previous repairs. Photograph the wall in daylight and with light falling across it: the second view helps show texture and raised joints that a straight-on photograph can miss.
Tell the decorator whether the paper has been painted before and whether you know its product type. An unfamiliar glossy, vinyl-faced or specialist wallcovering needs its own compatibility check. Do not assume a product described as wallpaper paint is suitable for every covering.
A practical keep-or-remove decision
| What you find | Next decision |
|---|---|
| Firmly attached paper; texture acceptable | Ask about a compatible preparation and coating system, with a representative trial. |
| Lifted seams or isolated damage | Assess whether repairs leave a dependable and acceptable base before agreeing to retain it. |
| Widespread peeling, several uncertain layers or unwanted texture | Discuss stripping and checking the exposed wall, with repair work priced separately where its extent is unknown. |
| Damp, mould, recurring stains or deteriorating plaster | Establish and address the cause before choosing a decorative finish. |
Why the coating system matters
Zinsser’s UK instructions for its Wallpaper Cover-Up system require clean, dry surfaces and well-adhered wallpaper. Its product guidance explains that moisture from ordinary emulsion can cause wallpaper to blister. That is a reason to check the complete system. Do not expect a primer to rescue loose paper.
Ask the decorator to identify the proposed preparation, primer where required and finishing paint. Follow the current instructions for those exact products, including application conditions, ventilation and drying. A drying time quoted for one coating should not become a deadline for a different product or room.
Agree a trial and what counts as acceptable
Use a typical seam and texture for the trial, because an unusually smooth corner tells you little. Agree its location and products before work starts. Once the system has dried as instructed, check adhesion, staining and the appearance under the lighting you will use.
Record what the trial shows and any limitations. A satisfactory patch helps make the decision, but cannot prove the condition of every concealed area. Decide now how newly discovered loose paper or wall damage will be reported and priced, so that conversation does not wait until the room is half finished.
If the paper needs to come off
Separate removal from the work needed afterwards. The wall may need local repairs, a new lining or a suitable plastering package once its condition is visible. Do not agree to a full skim just because wallpaper is being removed. Ask what the exposed background needs.
Before disturbing unidentified old coatings or textured finishes, arrange appropriate assessment. This is a finish-selection guide, not instructions for sanding or stripping potentially hazardous materials.
Send a brief that can be priced
- List the rooms, approximate wall areas and whether ceilings or woodwork are included.
- Provide whole-wall photographs and close views of seams, texture and damage.
- Say whether you want to retain the texture or achieve a plain wall.
- Describe known leaks, damp, earlier repairs and previous paint coats.
- Identify furniture, floor protection, access and rooms that must remain usable.
- Ask for clear allowances for removal, repairs, preparation, decoration and waste.
For decorating within a London refurbishment, send us the room details and photographs. The agreed scope should say whether the paper is retained or removed and what happens if the underlying wall needs more work.
Source
Zinsser UK: painting over wallpaper and Wallpaper Cover-Up product guidance. Product instructions apply to that system; check the current instructions for the materials selected for your room.