How to Protect Your Concrete Surfaces in Cold and Wet Weather
Winter in Perth might not bring snow, but it still poses risks for your concrete surfaces. Heavy rain, temperature fluctuations, and moisture buildup can cause damage—especially to decorative concrete like exposed aggregate, driveways, and alfresco areas.
If you want your concrete to stay strong, safe, and looking good year-round, here are our top concrete tips for winter to keep everything in top shape.
Quick Summary
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Seal concrete before winter sets in
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Clear away leaves and debris regularly
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Check for drainage issues and pooling
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Avoid harsh de-icing products and chemicals
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Repair small cracks before they worsen
concrete infographic explaining tips for winter
Why Concrete Needs Extra Care in Winter
Cold weather and moisture don’t mix well with concrete. Even without freezing temperatures, Perth winters bring consistent rain and colder nights that can cause minor cracks to spread or decorative finishes to stain.
Wet conditions also encourage mould, moss, and slippery surfaces—especially in shaded areas like alfresco zones or around pools. If ignored, these small issues can lead to bigger problems down the track, like surface erosion or structural damage.
Tip 1: Reseal Before the Rain Hits
Concrete is porous. That means it absorbs water, grime, and even chemicals unless it’s protected. A fresh sealer adds a water-repellent layer that protects against surface wear, discolouration, and weather damage.
If your driveway or outdoor area hasn’t been sealed in the last couple of years, it’s worth booking in before winter starts. This is especially true for decorative surfaces like exposed aggregate, which can lose their visual appeal if left unsealed during wet months.
Tip 2: Check Drainage Around Your Concrete Areas
Standing water is one of the biggest threats to concrete in winter. Poor drainage can lead to surface degradation, cracks, and uneven sinking.
Make sure water is flowing away from your concrete driveways and paved areas—not pooling or running back toward your home. If you spot drainage issues, now’s the time to fix them. You might need a small adjustment to levels, or in some cases, a more complete redesign.
Need help with a winter-ready layout? View our concrete driveway solutions for inspiration.
Tip 3: Clean Regularly to Prevent Mould and Staining
Wet leaves, soil, and garden debris can leave stains on decorative concrete if they sit for too long. Worse, the organic matter encourages moss and mould—both of which make the surface slippery and unsafe.
A quick sweep every couple of weeks and an occasional low-pressure wash can make all the difference. Be extra mindful in high-use outdoor living areas like concrete alfrescos, where moisture and foot traffic often combine.
Tip 4: Avoid Using Harsh Chemicals or De-Icers
Many winter concrete guides recommend de-icers or chemical treatments to melt ice—but these aren’t suited to Perth conditions and can actually harm your concrete. Even some household cleaners can wear down sealers or stain the surface.
Stick to mild, pH-neutral cleaners when washing down your concrete areas. And for grip, consider textured or exposed aggregate surfaces instead of relying on winter treatments.
Tip 5: Inspect for Small Cracks or Surface Damage
A tiny crack in dry weather might not seem like a big deal—but once winter hits, moisture can get in and make it worse. As water seeps in and temperatures fluctuate, those cracks can expand, leading to deeper issues.
Before winter kicks in, walk around your concrete areas and look for small cracks, chips, or loose surface materials. If you spot anything unusual, it might be time for a professional assessment or touch-up.
wet concrete driveway
Bonus Tip: Book Winter-Friendly Installs with a Pro
Thinking of installing a new alfresco, driveway, or outdoor area? Timing matters. Cold, wet conditions can affect how concrete cures, and poor timing can impact the finish and durability.
At CoastCrete, we work year-round and know how to pour and finish concrete properly in cooler conditions. From prep to sealing, we build with Perth’s winter in mind.
Get Expert Help to Protect Your Concrete This Winter
Winter doesn’t have to be hard on your concrete. With the right care, your exposed aggregate, driveway, or alfresco area can stay protected and looking sharp for years to come.
Need help sealing, inspecting, or maintaining your concrete this winter? Contact CoastCrete to book a consultation and keep your property in top condition all season.
