How to Prepare Your Perth Home for Winter: Roof, Gutters & Drainage

Get your Perth home ready for winter with this guide to roof inspections, gutter maintenance, and drainage checks before the wet season arrives.

Perth’s Winter: Mild Temperatures, Serious Rainfall

Perth’s winters are often underestimated. While temperatures rarely drop below 5°C, the city receives the bulk of its 733mm annual rainfall between May and September. June and July alone account for an average of 170mm and 146mm respectively — intense enough to expose every weakness in your home’s water management systems.

The homes most at risk are those built before the 1990s across suburbs like Fremantle, Morley, Balcatta, and Scarborough, where original guttering, flashing, and drainage systems may be 30 to 50 years old. Coastal suburbs face the added challenge of salt-laden winds that accelerate corrosion on metal components.

Roof Inspection and Repairs

Tile Roofs

Concrete and terracotta tile roofs are the most common across Perth’s established suburbs. Over time, ridge cap pointing cracks and falls away, creating direct entry points for rain. Broken or displaced tiles — often caused by foot traffic from antenna installers or solar panel technicians — are another common problem. A single cracked tile can allow litres of water into your roof cavity during a heavy downpour.

Metal Roofs

Colorbond and Zincalume roofs common in newer suburbs like Baldivis, Ellenbrook, and Butler are generally lower maintenance, but they’re not immune to problems. Check for loose or missing screws, particularly at ridge lines and valleys. The rubber washers under roofing screws degrade in Perth’s UV conditions, eventually losing their seal. Rust spots around screw holes indicate the washer has failed and water is penetrating.

For significant roof issues, our roof maintenance service covers inspections, repairs, and repointing across all roof types.

Gutter and Downpipe Maintenance

Gutters are your home’s first line of defence against water damage. In Perth, the most common gutter problems stem from leaf accumulation, corrosion, and incorrect fall — where gutters sag over time and no longer direct water towards downpipes.

Gutter Problem	Common Cause	Risk If Ignored	Typical Fix
Overflowing gutters	Leaf blockage or insufficient fall	Fascia rot, wall staining, foundation erosion	Clean + re-align brackets
Leaking joints	Sealant failure or corrosion	Water entry behind fascia into wall cavity	Reseal or replace affected section
Rust holes	Standing water, salt air corrosion	Uncontrolled water discharge, staining	Patch or replace gutter run
Blocked downpipes	Leaf and debris accumulation	Gutter overflow, hydrostatic pressure on joints	Flush and install leaf guards
Disconnected downpipes	Ground movement, impact damage	Water pooling near foundations	Reconnect and secure to wall

A thorough gutter clean in late autumn is the single most cost-effective maintenance task you can do before winter. For properties surrounded by trees — common in suburbs like Kalamunda, Mundaring, and Gooseberry Hill — you may need to clean gutters twice during autumn.

Drainage and Soakwells

Perth’s sandy soils generally drain well, but clay pockets found across the eastern suburbs (Midland, Guildford, Bassendean) and parts of the southern corridor (Armadale, Gosnells) can cause water to pool around foundations. Check that soakwells are accepting water by running a hose into the nearest downpipe and observing flow.

The City of Perth and most local councils require stormwater to be contained on your property via soakwells rather than directed onto neighbouring land or footpaths. If your soakwells are full or collapsed — common in properties over 20 years old — they’ll need to be replaced or additional capacity added.

Exterior Sealing and Waterproofing

Walk around your home and check for gaps around window and door frames, cracks in rendered walls, and deteriorated caulking. Perth’s extreme summer heat causes expansion and contraction that opens up sealant joints over time. A tube of quality exterior caulk and an hour of your time can prevent significant water damage during winter storms.

If your exterior paint is chalking, peeling, or cracked, it’s no longer providing a waterproof barrier. An exterior repaint before winter is a worthwhile investment that protects the substrate beneath while refreshing your home’s appearance.

Pre-Winter Checklist Summary

Inspect your roof for cracked tiles, failed pointing, and loose screws. Clean all gutters and flush downpipes. Check soakwell drainage capacity. Seal gaps around windows and doors. Inspect exterior paint condition. Clear garden drains and check that site levels direct water away from foundations. Address any issues before the first heavy rains arrive in May.

Taking a systematic approach to winter preparation protects your home from Perth’s concentrated wet season and avoids the costly emergency repairs that catch unprepared homeowners off guard every year.

James Officer

James Officer, has been renovating homes for more than 20 years. Over a decade ago, James founded Perth Property Improver with a clear vision — to create a reliable, professional service where homeowners could feel confident that their project was in safe hands. Over the years, he has built strong relationships with trusted local contractors, carefully weeding out the average from the excellent, so only the most skilled, dependable tradespeople work on your home.