How Often Should You Paint Your House Exterior in Sydney?

“How often should we repaint the outside?” is one of the questions we are asked most, and the honest answer is that it depends. The surface, the paint already on it, how much sun it gets and how close it is to the coast all change the answer. This guide gives you rough timeframes by surface, the Sydney conditions that shorten them, and the signs that tell you a house is due.

Rough timeframes by surface

Commonly quoted guides put repaint intervals somewhere in these ranges. Treat them as a starting point, not a schedule:

• Timber and weatherboard: the most demanding surface. Guides commonly suggest every three to seven years, because timber moves with the weather and paint on it cracks and lifts sooner.
• Painted brick: much longer, often ten years or more, because brick is stable and the paint is not fighting movement underneath it.
• Metal cladding, gutters and fascias: often around five years, depending on exposure and whether rust has been allowed to start.
• Render: varies with the quality of the original job. Cracks in the render usually decide the timing more than the paint does.

The paint system matters as much as the surface. Two full coats over properly prepared and primed surfaces will outlast a single coat over chalky old paint by years.

What Sydney’s weather does to paint

Sydney is hard on exterior paint, in different ways depending on where you live.

• Sun. North- and west-facing walls take the most UV, and they are almost always the first to fade, chalk and crack. It is normal for one side of a house to be due years before the other.
• Salt. Within a few kilometres of the water, salt settles on every surface. On the Northern Beaches and in the Eastern Suburbs, exteriors usually need washing down before they are prepared, and steel fixings rust sooner.
• Heat. Western Sydney regularly runs hotter than the coast in summer. Dark colours absorb that heat, which can shorten the life of both the paint and the timber under it. See what that means in Parramatta and the Greater West.
• Damp and shade. South-facing walls and homes under big trees stay damp. Mould and moss under the paint lift it from below.

Signs your house is due

Rather than counting years, walk around the house and look for these:

• Chalking. Rub your hand on the wall. A powdery residue means the paint has started to break down.
• Fading, especially when one wall is visibly lighter than the others.
• Cracking, flaking or peeling, usually first on window sills, the bottoms of doors and the sunny side of weatherboards.
• Bubbling or blistering, which usually points to moisture getting in behind the paint.
• Failed sealant around windows, doors and joints, which lets water into the surface underneath.
• Bare timber or rust spots. Once timber is exposed or rust has started, the repair grows quickly.

Repainting when the first of these appear is almost always cheaper than waiting until timber has to be replaced or render has to be patched.

What decides how long the next coat lasts

Most early paint failures are preparation failures, not paint failures. A repaint that lasts well usually involves:

• Washing down to remove dirt, chalk, salt and mould, then letting the surface dry properly.
• Scraping and sanding loose and flaking paint back to a sound edge. If the house was built before 1970, old layers may contain lead, which changes how this is done; see our guide to lead paint in older homes.
• Repairs: filling cracks in render, replacing failed sealant and treating rust before it spreads.
• Priming bare timber, metal and repaired areas, so the top coats bond evenly.
• Two full coats of an exterior-grade product, applied in the right conditions.

When you compare quotes, compare these steps, not just the final figure. A quote that skips the preparation is quoting for a shorter-lived job.

How to make a paint job last longer

• Wash the exterior gently every year or two, especially near the coast, to remove salt, dirt and mould spores.
• Keep gutters clear, so water does not overflow down the walls.
• Trim plants and trees back from the walls to let them dry out.
• Touch up small chips and cracks before they spread.
• Choose lighter colours for walls that take the full western sun.

Roofs, fences and the rest of the property

The house is rarely the only thing due. Roofs fade and chalk in the same sun, and timber fences usually weather faster than the walls. If you are repainting the outside, it is worth having the roof and fences looked at during the same site walk.

Our exterior painting page explains how we prepare and which coats go on. Every quote is written and itemised after a site walk, and every job carries our five-year workmanship guarantee in writing.

Ready for a written quote?

Call 1300 153 163, or tell us about the job and a person will reply within one business day. Every quote is written and itemised after a site walk.

Sources: How often should you paint a house exterior (ACM)