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How often should you clean gutters and why it’s important

Man in harness on ladder clearing out roof gutter on weatherboard home with terracotta tiles
RACV

February 26, 2025

It's important to maintain and clean your gutters at regular intervals to prevent leaks and damage to your home. Here is a guide on how to safely remove debris and clear overflow.

Routinely clearing leaves and debris from your home's gutters is essential to prevent potential property damage. A major blockage could lead to expensive roof and internal repairs, and compromise the structural integrity of your home.

Autumn is the peak season for gutter maintenance because that's when deciduous trees shed their leaves. Combined with twigs and organic matter, this debris can block your gutters causing overflow and leaks during strong winds and heavy rainfall, particularly in winter. Depending on the foliage in your area, gutter cleaning may need to be done more frequently.

This guide looks at how often gutters should be cleaned, why it’s such an important job, how to clean them safely and why getting professional help is highly recommended.

More: 10 home maintenance jobs to tackle in autumn

It's a good idea to leave gutter cleaning to the professionals.

How often should gutters be cleaned?

Clean your gutters at least twice a year – and more often if you have lots of trees around your home or if a storm or other severe weather event leads to rapid leaf and debris buildup on your roof. Prolonged periods of rain can also damage your gutters and downpipes.

For many homes, the best time to clean your gutters is near the end of autumn and before summer. If you live in a bushfire-prone area, you should clear out flammable leaf litter as soon as the drier months begin. Timing depends on your circumstances. 

The type of guttering on your home can make a difference. Fascia or eaves gutters, which are common in Australia, can clog quickly without guards or professional cleaning. Box gutters are becoming more popular for their visual appeal but they need more maintenance.

If you live in a rural area and rely on tank water, regularly clean your gutters to maximise the capture of rainwater and minimise leaves, debris and pollutants entering the pipes.

It's often hard to see what's happening on the roof and in the gutters, so regular checks are important. An expert tradie can thoroughly clean your gutters, inspect their condition, identify any signs of water damage to your home and assist with repairs.

More: How to clean up after a flood and storm damage

What’s the best way to clean gutters?

It’s important to recognise that working at height on a ladder can be dangerous. Additionally, gutter cleaning typically involves wet, slimy and slippery leaf litter, as well as stagnant water, bugs and perhaps even animal nests. This means the job might be best left to a gutter specialist. A professional tradie can also check your gutters for signs of damage or deterioration.

If you choose to clean the gutters yourself, take extreme caution and always use safety equipment such as gloves and non-slip shoes. You will also need a sturdy ladder, a bucket, trowel, hose and perhaps a brush or scraper. It is always safer to have someone else with you to hold and support the ladder.

Here is a guide to what's involved:

  • Clear any debris from the gutters, placing it into the bucket as you go. 
  • Prioritise cleaning the areas around each downpipe, where debris tends to collect. 
  • Take your time and make regular trips to empty the bucket before it gets too heavy. 
  • Put each bucketful into a compost bin rather than on the ground, where it might attract insects or vermin.
  • Hose water should clean the surface, but tough debris may need a brush or scraper.
  • Finally, take the nozzle off and place the hose as far down each downpipe as you can. Turn on the water and ensure it flows freely through the downpipe. If there’s any sign of a blockage, call a plumber or gutter specialist.

Some properties, especially in rural areas, use a 'rain head' (or leaf eater) on each downpipe as a first line of defence for clean tank water. These filters have an angled wire grille to capture larger items and a fine mesh screen to filter smaller debris.

The rain head needs regular cleaning – sometimes every few weeks – to work effectively. A qualified tradesperson could install one, along with a more comprehensive filtering system if you’re relying exclusively on tank water.

More: Guide to ladder safety around the home

RACV tradie on ladder cleaning out leaves from gutter on suburban home

5 reasons why gutter cleaning is important

Preventing gutter damage to your home

The main purpose of gutters is to help drain rainwater from your roof. But with clogging from fallen leaves and debris, gutters can become very heavy and dammed, with overflowing water having nowhere to drain.

This extra weight and stress can cause structural damage to your gutters, including rust, sagging, tilting, detaching and even falling to the ground. Damaged gutters typically need to be replaced entirely, which can be very expensive.

More: Commonly missed home maintenance issues

Protecting your roof and walls from damage

When rainwater on the roof has nowhere to drain because of clogged gutters, water may pool in a single spot and cause damage to roof tiles, fascia boards, eaves and even internal ceilings and walls.

Left unattended, even small pooling and leaks can lead to major roof or other internal damage, including water seeping through roof tiles and into the home, rotting wood or even parts of the roof collapsing. Without regular gutter cleaning and care, homeowners and landlords may be up for expensive roof repairs.

As mentioned, professional gutter cleaners can help prevent these costs. Not only will they clean your gutters, but they’ll also look for signs of roof damage that needs to be repaired.

More: Guide to home fire safety and hazard prevention

Avoiding damaging your home’s foundations

The main purpose of gutters is to direct rainwater runoff into drains, rather than straight onto your lawn or garden beds, where it could erode the soil next to your house and lead to water pooling.

Just as pooled water can damage a roof, the structural integrity of the home can suffer from pooled water that seeps through to the home’s foundations. Significant cracks can form in porous foundation materials such as concrete or wooden stumps, causing instability.

More: Regular home safety and maintenance checks

Two RACV tradies on ladders cleaning out gutters on a suburban home

As well as thoroughly cleaning your gutters, expert tradies can check on waterflow, identify signs of water damage to your home and assist with repairs.

Reducing health risks from mould and bacteria

Water that can’t drain properly from the roof could go stagnant, potentially triggering illness for those in the home who suffer from asthma or allergies. Leaf mulch and other debris in the gutters are also a prime breeding ground for dampness, mildew, mould and bacteria, which can spread through the roof and into the home.

This is another great reason to have your gutters professionally cleaned regularly, preventing harmful mould spores from multiplying in your home’s air and becoming a health risk.

More: How to remove mould and prevent it coming back in your home

Preventing pest infestations

Unwanted pests such as rodents, cockroaches and mosquitos are all attracted to stagnant water and rotting leaf debris. These pests thrive in damp, dark conditions. Birds may also attempt to build their nests in clogged gutters during late spring and early summer.

Make sure to eliminate any debris like leaves and twigs from your gutters regularly so that water can flow cleanly and freely, discouraging insects and birds from nesting in the eaves.

More: How to keep common pests out of your house


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RACV Trades is a trading name of RACV's trade partner, Club Home Response Pty Ltd (Victorian registered domestic building practitioner number CDB-U 100178). All works are performed or arranged by Club Home Response Pty Ltd. trading as RACV Trades. Read the RACV Trades Terms and Conditions.