Weatherboard is my favourite thing to paint and the job I see botched most often. A rendered wall is one big flat surface. A weatherboard wall is hundreds of small ones — every board has a face, a bottom edge, an overlap, end grain at the corners and nail heads along its length — and paint fails at the edges first. Get the preparation right and a weatherboard cottage looks better than any other house on the street. Get it wrong and it is peeling along the bottom of every board inside two winters.
This guide is how we actually approach weatherboard homes from Bronte and Clovelly round to Watsons Bay, what it costs, and what you should insist on from whoever quotes yours.
Why weatherboard is a different job to brick or render
Timber moves. Boards swell in a wet week and shrink in a hot one, and every join, overlap and fixing is a place the coating gets stretched and worked. Add the coast — salt settling on the lower edge of every board, UV cooking the north and west walls, damp sitting on the shaded south side — and you have a surface that punishes shortcuts.
Most of the weatherboard homes in the Eastern Suburbs are also old: Federation and inter-war cottages, many with the original boards still on them. That means several generations of paint, some of it lead-based, some of it applied over the last lot without much preparation. What is underneath your new paint decides how long it lasts, which is why I spend the first hour on any weatherboard quote with a scraper and a moisture meter, not a colour chart.
The inspection: what I'm looking for before I quote
- Paint lifting along the bottom edge of the boards — the classic coastal failure. Salt and water sit on that edge and get under the film.
- Peeling around window frames, corners and joins — where movement is greatest and old caulk has let go.
- Grey, weathered timber — bare boards that have had UV on them need more than a quick prime; the surface fibres are dead and have to come off.
- Soft or split boards, and open gaps at the corner stops — carpentry, not paint. It gets priced separately and done first.
- Rust bleed at nail heads — old steel fixings weeping through the paint. Each one needs sealing or the stain comes back through the new finish.
- Mould and green growth on the south wall — has to be treated and killed, not just washed off, or it grows back under the paint.
- Chalking on the sunny walls — run a hand over the paint; if it comes away white, the old finish has broken down and needs washing to a sound surface.
- How firmly the old paint is bonded — a simple cross-hatch and tape test tells me whether we are feathering edges or stripping whole elevations.
The preparation, step by step
1. Wash — properly, and gently
Salt, chalk, dirt and mould all have to come off before a scraper or a brush touches the house. We wash with a controlled low-pressure rinse and a mould treatment on the shaded walls. Blasting weatherboards with a high-pressure wand is a mistake I see constantly: it drives water in behind the boards, chews up soft timber and leaves fibres standing that have to be sanded off anyway. There is more on getting this right in our pressure washing page. Then the boards dry — at least two dry days in winter — before anything else happens.
2. Scrape back to a sound edge, and decide: feather or strip
Every loose or lifting edge is scraped back until what remains is firmly stuck. This is the decision point on a weatherboard job and the reason two quotes can be $8,000 apart. If most of the coating is sound, we feather the edges of the scraped areas with a sander so the transition disappears under the new paint. If several old layers are brittle and separating together, the honest answer is to strip that elevation back to timber — it roughly doubles the prep cost, so it should come from testing the paint, not from a standard package.
On anything painted before about 1970 we assume lead is in the old coats and work lead-safe under AS 4361.2: wet-sanding or dust-extracted sanding, ground sheets, containment and a proper clean-up. If a quote for an old cottage doesn't mention lead, ask. Our heritage painting guide goes into it in more depth.
3. Sand, and sand the bottom edges
Sanding gives the new paint something to grip and knocks down the ridges where old paint meets timber. On weatherboards the part everyone skips is the underside of each board — the very edge that fails first. It gets sanded, primed and painted like any other surface, which is slow, and which is why a cheap quote is cheap.
4. Timber repairs before any paint
Split boards, rotten ends and open corner stops are fixed or replaced first. We handle straightforward board swaps and end repairs ourselves; anything structural goes to a carpenter and gets done before we start, not hidden under filler. Filler and sealant have their place — but exterior-grade, flexible products in the joints that move, never rigid interior filler outside. That is one of the shortcuts that shows up as a crack line within a year.
5. Prime for the timber you actually have
This is where product knowledge earns its keep. Bare cedar, and most of the older hardwood boards around the east, are full of tannins that bleed straight through a general acrylic primer and stain the finish brown. They need a stain-blocking primer — oil-based or a dedicated tannin-blocking acrylic — and sometimes two coats on the worst boards. Our Fisherman's Cottage at Camp Cove was original cedar weatherboards, sanded back, repaired and primed exactly this way before the navy went on; skip that step and a dark colour shows every bleed mark. Nail heads get spot-sealed with a rust-inhibiting primer for the same reason.
6. Caulk the joins, then two full topcoats
Corner stops, window and door frames and the board ends at every junction get a flexible exterior sealant after priming so it bonds to a clean surface. Then two full coats of topcoat — not one coat "and a touch-up". Film thickness is what stands between the timber and the weather, and the difference between one coat and two on a coastal weatherboard is roughly the difference between five years and ten. There is more on the whole approach on our surface preparation page.
Products: what goes on a coastal weatherboard
We are a Dulux Accredited business and on weatherboards the system is consistent: Dulux Weathershield low sheen on the boards, semi-gloss or gloss on windows, doors and trim, over the correct primer for the substrate. Low sheen on the boards is a deliberate choice — it hides the small ripples and repairs on old timber that a higher gloss would light up. A flexible, premium 100% acrylic topcoat moves with the timber; the cheap "exterior" paints in the trade aisle do not, and they crack along the board edges as the boards work.
Our coastal paint guide explains why salt air destroys ordinary paint and which systems survive it, if you want the longer version.
Colour on weatherboards
Two practical things before taste. Dark colours absorb heat, which makes the boards move more and works the coating harder on the sunny walls — it can be done beautifully, our Camp Cove cottage is proof, but use a premium system rated for dark colours and expect to wash the exposed walls more often. And weatherboards read differently to render: the shadow line under every board darkens the overall effect, so a mid-tone on the chip becomes a strong colour on the house. Test on the actual boards, in the morning and the afternoon. For what is genuinely being chosen around the east this year, see our colour trends guide.
What it costs in the Eastern Suburbs (2026)
| Weatherboard job | Typical range | What drives it |
|---|---|---|
| Single-storey cottage, sound existing paint | $10,000–$16,000 | Wash, scrape, feather, spot-prime, two coats; standard trim |
| Single-storey cottage, heavy prep | $16,000–$22,000 | Extensive scraping, partial strip, tannin priming, board repairs |
| Two-storey weatherboard home | $18,000–$30,000+ | Scaffold or boom, more elevation, gables and upper trim |
| Full strip to bare timber (add) | +$4,000–$10,000 | Lead-safe stripping, full prime, longer programme |
| Board replacement | $60–$150 per board fitted | Profile matching, priming all faces before fixing |
| Windows, doors and trim (included above) | — | Typically 30–40% of the hours on a cottage — it is all brushwork |
These are broad guides for a walked, itemised quote — every weatherboard house is different and the condition of the old paint moves the number more than the size of the house. Our Sydney painting cost guide has the wider ranges, and how to compare painting quotes shows you how to line up two weatherboard quotes that look nothing alike.
Why two weatherboard quotes can be thousands apart
- How much scraping and stripping is allowed for. A quote that says "prepare and paint" has decided nothing. Ask what happens to loose edges and bare timber.
- Whether the bottom edges and undersides are in scope. They should be, and they take time.
- Primer. "Undercoat" is not a primer, and a general acrylic primer on cedar is a stain waiting to happen.
- One coat or two. Ask directly. The saving on one coat is real and so is the repaint five years early.
- Access. Gables and upper storeys on tight Eastern Suburbs blocks often need scaffold or a boom. It should be priced up front, not discovered on day two.
- Repairs. Are board repairs in, out, or "to be advised"? Vague is expensive later.
How long it lasts, and how to make it last longer
Honest numbers from two decades on these streets: a properly prepared, two-coat premium job on a weatherboard exterior gives you 7–10 years in the Eastern Suburbs, and 5–7 years on faces taking direct onshore salt. Sheltered, inland weatherboard homes around Kensington or Randwick can go past ten. A cheap job over poor prep can be peeling inside two.
To get the top of the range: hose the salt off exposed walls with fresh water once or twice a year, keep gutters clear and plants off the boards, and touch up chips before winter so water never reaches bare timber. We go through the whole question — which surfaces fail first, and what your 5-year guarantee actually covers — in how long exterior paint lasts near the beach.
Frequently asked questions
How much does it cost to paint a weatherboard house in Sydney?
In the Eastern Suburbs, a typical single-storey weatherboard cottage exterior runs $10,000–$22,000 in 2026. A two-storey home, or one that needs old paint stripped back and boards replaced, is $18,000–$30,000+. Preparation is the bulk of that figure — on a neglected coastal weatherboard it can be two-thirds of the labour.
Do weatherboards need to be stripped back to bare timber before painting?
Usually not. If most of the old paint is still firmly bonded, we scrape the failed areas back to a sound edge, feather-sand the transitions and spot-prime the bare timber. A full strip is only justified when several old layers are brittle and lifting together, and it roughly doubles the preparation cost, so it should be a decision based on testing the paint, not a default.
What is the best paint for weatherboards near the beach?
A premium 100% acrylic exterior system — we use Dulux Weathershield in low sheen on the boards and a semi-gloss or gloss on trim — over the correct primer for the timber. The primer matters as much as the topcoat: bare cedar and other tannin-rich timbers need a stain-blocking primer or the tannins bleed through and stain the finish.
Can I paint a weatherboard house a dark colour?
Yes, with care. Dark colours absorb more heat, which makes the boards move more and can shorten the life of the coating on north- and west-facing walls. We have done it well — our Camp Cove fisherman's cottage is a deep navy — but we use a premium system rated for dark colours, and we talk through the maintenance honestly before you commit.
How long will a painted weatherboard house last on the coast?
On a properly prepared premium job, 7–10 years on a weatherboard exterior in the Eastern Suburbs, dropping to 5–7 years on faces that take direct salt spray. A cheap job over poor preparation can be peeling inside two. An annual fresh-water wash and touching up chips before winter takes you to the top of the range.