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A Homeowner's Checklist for Preventing Water Damage in Sydney

By The Quick Cleaning Team Published on August 25, 2025
A well-maintained roof and clean gutter on a Sydney home, showcasing preventative measures against water damage.

In Sydney, we're no strangers to unpredictable weather—from sudden, intense downpours to prolonged rainy seasons. While we can't control the forecast, we can certainly take proactive steps to protect our homes. Water damage is one of the most common and costly issues homeowners face, but the good news is that most of it is preventable.

Regular maintenance is your best defence. By spending a little time inspecting your property, you can catch small issues before they become catastrophic leaks or floods. Use this comprehensive checklist to safeguard your Sydney home, room by room.


Your Home's Exterior: The First Line of Defence

Your roof, gutters, and drainage are designed to channel water away from your property. Keeping them in top condition is critical.

Clear Gutters and Downpipes: At least twice a year (especially before storm season), clear all leaves, twigs, and debris. Clogged gutters cause water to overflow and seep into your roof and walls.
Inspect Your Roof: Look for any cracked, loose, or missing tiles. Pay close attention to the flashing around chimneys and vents, as these are common weak points for leaks.
Check External Walls and Windows: Examine sealant and caulking around windows and doors. Cracks in brickwork or rendering can allow water to penetrate during heavy, wind-driven rain.
Ensure Proper Drainage: Check that the ground around your foundation slopes away from the house. This prevents water from pooling against your walls and seeping into the sub-floor or basement.

Inside Your Home: The Hidden Dangers

Internal leaks from plumbing and appliances are a leading cause of water damage. Regular checks can save you from a nasty surprise.

Inspect Appliance Hoses: Check the hoses on your washing machine, dishwasher, and refrigerator ice-maker for cracks, bulges, or leaks. Consider upgrading standard rubber hoses to more durable braided steel ones.
Check Plumbing Under Sinks: Look for slow drips or signs of moisture like water stains or warped wood in the cabinets under your kitchen and bathroom sinks.
Examine Bathroom Grout and Sealant: Damaged grout or sealant around your shower and bath can let water seep into the walls, causing hidden mould and structural damage over time.
Know Your Hot Water System: Check its age (most last 8-12 years) and look for any signs of rust or leakage at the base. A failing hot water system can release a huge amount of water.

Special Focus: Sydney Storm Season Prep

Before summer storms hit, it's vital to:

  • Ensure your gutters are completely clear.
  • Secure loose items in your garden or on your balcony that could become projectiles.
  • Check that stormwater drains on your street are clear of debris.
  • Have a plan in case of a power outage, which can affect sump pumps.

The Most Important Check of All: Know Your Shut-Off Valve

Every homeowner should know the location of their main water shut-off valve. In the event of a burst pipe, turning this valve off immediately can be the difference between a small puddle and a full-blown flood. It's usually located near the front of your property at the water meter, or sometimes where the water line enters your home.

Your task: Find it, and make sure it turns easily. If it's stuck, call a plumber to service it.

When Prevention Isn't Enough

Even with the best preparation, accidents can happen. If you're facing a leak or flood, Quick Cleaning's 24/7 emergency team is ready to respond immediately.