1Cover your fittings
Before you start, cover all of your fittings in the bathroom in plastic to prevent paint splatters getting on them. Also, make sure you put a drop sheet down.
2Prepare your painting surface
If you’ve got any mould, get rid of it with a bleach solution before you begin. You’ll need to sand the paint coats off your plaster walls and ceiling before you paint. Use a sanding pad and 150-grit sandpaper for a nice, even finish. Then wipe down the surfaces with a cloth to get the dust off.
3Apply painters tape to floor and wall edges
Put some painters tape down along the edges of any floor or wall tiles to stop any paint getting on them and to keep your paint lines straight when you’re cutting in.
4Start by cutting in the edge
When painting a surface, always start by cutting in the edges. Use a cutting brush, which is cut on an angle, to make sure you get an even, clean job. Then apply your undercoat to all the edges.
5Apply undercoat to the ceiling
After cutting in your ceiling and walls, paint the ceiling with the undercoat. Use a roller for good coverage when painting larger surfaces. Make sure you keep the flat surface of the roller on the wall side when rolling, so the metal bracket doesn’t damage your wall.
6Apply undercoat to the walls
Once you’ve done the ceiling, start painting your walls with the undercoat. Follow the same process from Step 5 and leave to dry before applying your topcoat.
7Apply the topcoats
Once the undercoat is dry, apply your topcoat the same way you applied the undercoat in Steps 4–6. Start by cutting in your ceiling and walls again along your marking tape for the topcoat. Then paint the ceiling using your roller, applying an even paint spread. Let the topcoat dry and give the ceiling another topcoat.
8Apply the paint colour
If the wall colour is different to your ceiling, you’ll need to thoroughly clean all of your painting gear so that you don’t mix your paint colours. Tape the ceiling up along the wall join to protect your new paint, and then cut in your wall edges (see Step 4). Now, roll your first topcoat onto the walls and let it dry. Add a second coat, especially if it’s a dark colour. When the second coat is dry, remove all the tape from your walls.