Level of Difficulty: Intermediate Do-It-Yourselfer – Moderate
Completion Time: 1 Week

Painting the interior of your home, or just a room, is one of the easiest and most cost-effective ways to revitalize, redecorate or renew the look of a home. Although the actual painting isn’t difficult, preparing the room and surfaces to be painted is more than 75% of the work; if done properly, it’s what will ensure the success of your project.

With the proper tools, good planning and the right advice, you can achieve professional-standard results. Invite family or a few friends over to join in, and you can all have a good time!


  • Paint container
  • Trimmers (pads)
  • Painters 5 in 1 Tool
  • Gloves
  • Scrapers
  • Telescopic pole

  • Sandpaper
  • Brushes (natural or synthetic bristles, foam)
  • Rollers (various sizes)
  • Protective masking tape

  • Plastic bag
  • Paint bucket
  • Drop sheets
  • Screwdriver
  • Flexible edgers
  • Sponge


  • Primer
  • Wood filler
  • Paint
  • Plastic wrap
  • Trisodium phosphate (TSP)
  • Solvent for oil-based paint

When you paint a room, apply the paint in the following order:

  1. Ceiling
  2. Walls
  3. Mouldings and casings
  4. Doors and windows

Before beginning, make sure that room temperature is above 10 °C, there is adequate ventilation in the house and that you have good lighting.

1.1. Clear small pieces of furniture, lamps, pictures and all decorative items out of the room.

1.2. Set large pieces of furniture in the middle of the room and cover with a drop sheet.

1.3. Spread a drop sheet over the floor to protect it from paint splashes.

2.1. Remove everything that shouldn’t be painted, such as electrical outlet covers and switch plates, wood handrails, etc.

2.2. Unscrew light fixtures and let them hang. Cover lights with a plastic bag.


3.1. Sink any exposed nails or screws.

3.2. Fill holes and cracks with a patching compound.

3.3. Wait until the compound is dry then sand the walls.

3.4. Remove all dust and residue with a broom or vacuum cleaner.

3.5. Clean any mould with a mixture of three parts water and one part bleach. Wear gloves to protect your hands.

3.6. Wash the walls and ceiling with TSP (trisodium phosphate) using a cloth or sponge.

3.7. Clean the baseboards with a damp sponge or cotton wiper.

3.8. Protect mouldings and casings with paper and masking tape.

4.1. Apply a coat of primer to areas that have been repaired and check that marks are no longer visible.

4.2. Apply a thick coat of primer to all surfaces (walls and ceiling) and leave to dry.

4.3. If necessary, sand surfaces with 120-grit sandpaper then clean.

5.1. Check that all mouldings and casings have been taped.

5.2. Cut a fine line with your brush where the wall meets the ceiling; it will be easier to cut the wall afterwards. If the room has a cornice, tape it up.

5.3. Apply the first coat of paint with a roller, moving either horizontally or vertically across the ceiling.

5.4. Apply the second coat rolling in the opposite direction, to eliminate streaking.


6.1. Cut the corners, mouldings and casings with an angular paintbrush.

6.2. Quickly wipe off any paint drops that have fallen.

6.3. Start in the corner of the room and quickly paint the wall area that has been cut, smoothing over your brush strokes.

6.4. Take one section of wall and roll the paint on in a zigzag pattern as if you’re painting a large “W.” Then do the same but in reverse to cover the entire surface.

6.5. Take one 3’ to 5’ section at a time.

6.6. Finish one section completely before moving on to the next.

6.7. Remove masking tape quickly before the paint has had time to dry.


7.1. Repair cracks and fill holes where needed on mouldings and casings.
Sand with 80 to 100-grit sandpaper and clean with TSP (tri sodium phosphate).

7.2. Protect surfaces that shouldn’t be painted by covering with masking tape. Apply the tape precisely so that paint can’t seep in underneath.

7.3. Use a fine brush to apply a primer on mouldings and casings.

7.4. Wait until the primer coat is dry, then sand with 220-grit sandpaper to remove fine dust particles. Wipe clean with a cloth.

7.5. Paint mouldings and casings with a brush.

7.6. Carefully lift off the masking tape when trim is completed so you don’t remove any paint.


8.1. Take the door out of the frame. Remove door handle and hinges.

8.2. Lay the door flat on a couple of sawhorses. Nail in four temporary nails above the top of the door and below the bottom; this will hold the door in place and make it easier to paint.

8.3. Fill any cracks and holes. Sand with 80 to 100-grit sandpaper and then with 220-grit sandpaper.

8.4. Clean surfaces with TSP (trisodium phosphate).

8.5. Apply primer to surfaces in this order: the edges, the mouldings and panel interiors, the bottom rails, the center stiles and last, the outer stiles.

8.6. Wait until the primer coat is dry, then rub down the door with 220-grit sandpaper to remove dust particles. Wipe with a cloth.

8.7. Paint surfaces in the following order: the edges, the mouldings and panel interiors, the bottom rails, the center stiles and last, the outer stiles.


Don’t forget that paint takes up to 30 days to fully cure.

9.1. Sand surfaces smooth between coats with 220- grit sandpaper to obtain the best results.

9.2. Run fine sandpaper over the painted surface to remove dust particles.

9.3. Clean surfaces thoroughly with a damp cloth before applying the next coat.

10.1. Use soap and lukewarm water for latex paint and solvent for oil-based paint.

10.2. Keep your brushes fresh between paint applications (if you’ll be reusing them within the next few days) by sealing them in plastic wrap.

11.1. Paint should be stored in hermetically-sealed containers.

11.2. Store paint out of reach of children and where the temperature is neither too cold nor too hot.

11.3. Bring back your unused paint at your RONA participating store.