Painting around architraves neatly is one of those skills that separates a professional-looking finish from a messy one. The good news is that with the right tools, a bit of patience, and the techniques below, any careful DIYer can achieve crisp, clean edges. Whether you're painting the architrave a different colour from the wall or simply refreshing the trim, here's how to do it properly.
Understand What You're Working With
Architraves are the decorative timber mouldings that frame your doors and windows. In most NZ homes they're painted in a semi-gloss or gloss trim paint, while the walls are finished in a flat or low-sheen paint. Because these are typically different sheens — and often different colours — a clean edge between the two is essential for a tidy result.
Before you start, check that any existing paint is sound. Flaking or peeling paint should be sanded back and primed first. Resene and Dulux both offer excellent water-based trim primers suitable for NZ conditions.
Gather the Right Tools
Having the correct tools makes all the difference:
- 25–50 mm angled sash brush – the most important tool for cutting in
- Low-tack painter's masking tape (look for products labelled for delicate surfaces)
- Small paint bucket or pot for decanting
- Damp cloth or paper towels for quick clean-ups
- Fine 120–180 grit sandpaper for light sanding between coats
- Putty knife or scraper if you need to remove old tape residue
You'll find a good range of brushes and tapes at Bunnings or Mitre 10.
Method 1 – Using Painter's Masking Tape
This is the most reliable method for beginners and gives consistently sharp lines.
Step-by-step
- Clean the architrave and wall junction. Dust and grease will stop tape adhering properly. Wipe down with a damp cloth and allow to dry.
- Apply low-tack masking tape along the edge of the architrave where it meets the wall. Press the tape edge down firmly with your fingernail or a putty knife so paint can't bleed underneath.
- Paint the architrave with your trim paint, working the brush away from the tape edge. Apply thin, even coats.
- Remove the tape while the paint is still slightly wet — not fully dry. Pull it back at a 45-degree angle slowly and steadily. Removing tape from fully dried paint can lift the surface.
- Touch up any small bleeds with a fine artist's brush once dry.
Tip: Don't leave masking tape on for more than 24 hours in NZ's variable humidity, as it can be harder to remove cleanly and may leave adhesive residue.
Method 2 – Freehand Cutting In
Once you've built some confidence, cutting in freehand is faster and gives a very professional result. This is the technique most NZ trade painters use day-to-day.
Step-by-step
- Load your angled sash brush about one-third of the way up the bristles. Tap off excess paint on the side of the pot — don't wipe it all off.
- Position the brush so the tip of the bristles sits just on the architrave, about 5–10 mm away from the wall edge.
- Draw the brush steadily along the architrave, gradually steering the bristle tips toward the wall edge as you go. The bristles will fan out slightly and the tip will follow the line.
- Keep your hand steady and move your whole arm rather than just your wrist for longer strokes.
- Work in sections of 300–400 mm at a time, keeping a wet edge to avoid lap marks.
Practise on a less visible area first — like inside a wardrobe door frame — before tackling the main living areas.
Dealing With Gaps and Imperfect Junctions
Older NZ homes often have small gaps between the architrave and the wall plaster. If you have visible gaps:
- Fill them with a flexible acrylic gap filler (sometimes called painter's caulk) before painting. Sika and Ardex both make suitable products.
- Smooth the filler with a damp finger, allow to cure as per the manufacturer's instructions, then paint over it.
- This also improves draught-proofing, which is a bonus in NZ's cooler climates.
Paint Order Matters
A common question is: which do you paint first — the wall or the architrave? Professional painters generally follow this sequence:
| Step | What to paint | Paint type |
|---|---|---|
| 1 | Ceiling | Ceiling flat white |
| 2 | Walls | Low-sheen or flat wall paint |
| 3 | Architraves & skirting | Semi-gloss or gloss trim paint |
Painting the trim last means you can cut the trim paint neatly against the already-dry wall colour, and any small overlaps onto the wall are easy to touch up.
Choosing the Right Paint
For architraves, use a water-based semi-gloss or gloss trim paint. These are durable, easy to clean, and dry faster than oil-based alternatives. Water-based paints are also lower in VOCs, which is better for indoor air quality — important for indoor air quality generally.
Popular NZ options include Resene Lustacryl, Dulux Aquanamel, and Wattyl's interior trim range from Wattyl.
When to Call a Professional
If you're repainting after water damage, mould, or if the existing paint is lead-based (common in NZ homes built before 1980), it's worth getting a professional painter involved. Lead paint removal is a health and safety matter — WorkSafe NZ has guidance on working safely with lead paint. A qualified painter will also achieve a faster, more consistent result on large or complex jobs. You can find experienced local painters on tradedirectory.co.nz.
BCITO Qualified
Master Painters NZ
Site Safe
