Painting a 15-20 m² room costs €180-400 in materials if you do it yourself, or €600-1,200 with a decorator, and the gap between those numbers is almost entirely labour and prep work, not the paint itself. Colour choice barely moves the price; wall condition and how many coats you need move it a lot.
Cost by scenario
| Scenario | Cost range | Time |
|---|---|---|
| DIY, walls only, good condition, 2 coats | €120-250 | 1 weekend |
| DIY, walls + ceiling, good condition | €180-400 | 1-2 weekends |
| DIY, dark-to-light colour change | €220-450 | Add a coat, add a day |
| Decorator, walls only, standard prep | €400-700 | 1-2 days |
| Decorator, walls + ceiling, standard prep | €600-1,200 | 2-3 days |
| Decorator, heavy prep (cracks, damp staining, wallpaper removal) | €900-1,800 | 3-5 days |
What actually drives the price
Number of coats. Going from a dark colour to white or a light neutral often needs three coats instead of two, adding roughly 40% to material cost and a full extra day to a decorator job.
Wall condition. Filling, sanding, and priming a wall with cracks or old wallpaper residue can double the labour time before a single coat of finish paint goes on. Always ask a decorator to inspect the actual walls before quoting, not just the square metreage.
Paint quality. A budget emulsion runs €15-25 per 5 litres; a premium washable or low-VOC paint runs €40-70 per 5 litres. For a small room this difference is €20-40 total, not worth cutting corners on for a room you’ll look at daily.
Ceiling height. Standard 2.4m ceilings are straightforward with a stepladder. Anything over 2.7m usually needs scaffolding or a tower for a decorator, adding €100-300 to the quote.
Trim and woodwork. Painting skirting boards, door frames, and window trim separately (often in a different finish, like satin over matte walls) adds €80-200 in materials and a meaningful chunk of the labour time, since trim painting is slower and more detail-heavy than rolling walls.
The paint colour decision, priced separately from the labour
Colour itself doesn’t cost more, but choosing wrong costs a full repaint. Most wrong choices are undertone mistakes; how to choose paint colours by undertone explains how to catch them on the chip. Before buying paint, test the actual colour against your room’s light using swatches or a digital palette generated from a photo of the space, rather than a paint chip held under shop lighting. See how to generate a paint colour palette from a photo for a way to do this against your actual room before buying a tin.
To settle the colours before paying for labour, generate a paint palette from a photo of the room; for outside walls the logic changes — see exterior paint colours.
DIY cost breakdown for a 15-20 m² room
| Item | Cost |
|---|---|
| Emulsion paint, walls (6-8L) | €60-120 |
| Ceiling paint (3-4L) | €30-55 |
| Primer, if needed | €20-35 |
| Rollers, brushes, trays | €25-40 |
| Masking tape and dust sheets | €15-25 |
| Filler and sandpaper for minor repairs | €10-20 |
| Total | €160-295 |
Add €20-40 for trim paint if doing skirting and doors separately. If you only want one wall of colour, accent wall ideas shows how a single 2.5-litre tin covers it for under €40.
When it’s worth hiring a decorator instead
- Ceilings above 2.7m or awkward stairwells requiring proper access equipment.
- Walls with visible damage, damp staining, or old wallpaper that needs stripping.
- A tight timeline, since a decorator finishes in days what DIY takes weekends to complete around drying time.
- Multiple rooms at once, where the per-room labour rate usually drops.
The DIY-versus-contractor comparison runs the same trade-off for the other jobs in a renovation, where the answer is less often DIY.
If painting is part of a larger project rather than a standalone job, price it against the full renovation budget guide rather than in isolation, since painting is almost always the cheapest line item and shouldn’t dictate overall sequencing.
Try it yourself
Before buying paint, run your room through Room Redesign in Homie to preview a few wall colours against your actual furniture and light, and use the Cost Estimate add-on to sanity-check the numbers above against your specific room and finish choice.
