Painting a dormer: 2026 guide

Plan a paint round on both visible wear and interval. Visible signs: gloss loss (duller than before), small hair cracks in paint, light discolouration or yellowing, or spots where paint flakes. As soon as one sign appears, time for a round — don't wait until bare wood is visible, that requires wood repair.

By interval: pine and spruce every 4-6 years, meranti and larch every 6-8, painted cedar or oak every 8-12. Faster on south (UV) than north. In the Netherlands on average: north side 1-2 years longer interval than south.

Plan paint rounds in spring (April-May) or early autumn (September to mid-October). Temperature 8-20°C, humidity below 80 percent, no rain for 24 hours after last coat. Painting in summer heat (above 25°C in direct sun) or wet autumn gives poor paint adhesion and shorter lifespan.

Water-based frame paint (acrylic-PU) is the 2026 standard. Examples: Sigma S2U Nova, Sikkens Cetol BL Forte, Wijzonol DD. Good flexibility, easy application, 4-8 hour drying per coat. Warranty 5-8 years applied correctly. Paint price: €70-€110 per litre; 3-metre dormer needs 3-4 litres.

Alkyd paint (solvent-based) is still used on heavy damp spots (bottom sill, corners) for better water resistance in the first 5 years. Examples: Sigma S2U Gloss, Sikkens Cetol Filter 7. Stronger smell, longer drying (12-24 hours) but more durable on critical points. Price €60-€90 per litre.

Premium hybrid systems (Sikkens Cetol Topgevel, Trimetal Polylack) combine water- and solvent-based properties and warranty up to 10 years. Surcharge €25-€40 per litre over standard water-based. Recommended for exposed locations (south, no overhang) and valuable architecture.

DIY suits handy owners not afraid of heights with full equipment. DIY cost: €70-€150 materials (paint, primer, sandpaper, brushes, tape, sheet) plus €100-€250 hoist/scaffold rental (1-3 days). Time 20-30 hours over 3-4 days. Risk: fall hazard, poor prep leads to quick repainting needed.

A professional charges €500-€900 for 3 metres including everything. Advantages: 5-10 year warranty (depending on system), proper prep and wood repair included, on average 30-50 percent longer lifespan than amateur work, and no risk to the owner. Over 3-4 paint rounds in your dormer's lifespan that saves €1,500-€2,500 in maintenance.

Middle ground: you do prep (scaffold, clean, tape), painter does only painting. Saves 30-40 percent on quote (€350-€600 instead of €500-€900). Ask if your painter accepts; not all professionals do.

On timber in very poor state (extensive rot, warped profiles, failed earlier paint) repainting is often wasted money. Thorough refurb with wood repair and new paint: €1,200-€2,500. New prefab dormer: €5,000-€8,500. Choice depends on planned use period: under 10 years refurb, over 10 years replace.

On replacement you simultaneously get insulation upgrade (old R 1.3 or 2.0 to modern R 6.3), better glass (HR++ instead of single/double), and possibly different material (PVC instead of timber to eliminate future maintenance). For homes held over 15 years often the smartest choice.

Hybrid approach: replace dormer with PVC but keep or replicate frames in the original style. Combines maintenance freedom (PVC) with aesthetic continuity (original style). Surcharge €800-€1,500 over standard prefab.