Brisbane is prone to flooding, particularly in the summer months, and if your property has an inadequate drainage system, heavy rain can quickly overwhelm it. When rainwater can’t drain away from your property effectively, it can cause a range of issues – including flooding.

So what are the signs of a struggling drainage system, and what can you do to protect your Brisbane home from flooding?

Flooded garage of home. Plumbers can help install and maintain the drainage Brisbane homes need to deal with wet summers.

Is it Possible to Make a Brisbane Home 100% Flood-proof?

The short answer is no. Natural disasters can happen anywhere – especially in Queensland, Australia’s most disaster-prone state – and it’s impossible to safeguard a home against every possibility. In Brisbane, which is built on a floodplain, the risk of flooding is a reality homeowners must be aware of, especially as the effects of climate change are causing increasingly severe weather in Queensland.

So while it’s not possible to make a home an indestructible fortress, you can improve its flood resilience to mitigate the impact of Brisbane’s wild weather – and assessing your home’s backyard drainage is a good place to start.

So, is your drainage system up to the job or could it use some upgrades? Here’s how to tell if your roofwater and stormwater drainage isn’t coping.

Signs Your Brisbane Drainage System Needs Attention

If your drainage system can’t cope with a Brisbane summer, it has a way of letting you know – but some signs are subtle, so if you don’t know what to look for, you can miss them. Left too long, minor problems can cause major headaches during a significant storm event. Here are signs of poor drainage to look out for.

Pooling Water

It’s normal for water to pool after rain, but ideally, these puddles should drain away within 12 hours – maybe 24 hours after a very heavy downpour. If there are puddles in your yard more than 48 hours after a rain event, you may have drainage issues. And if water is slow to drain after moderate rain, your property may be at risk of flooding after heavier rain.

Many things can contribute to slow drainage, including:

  • improper garden slope
  • clogged drain grates
  • blocked or damaged sewer or stormwater drains
  • tree root intrusion
  • incorrect plumbing connections
  • poorly maintained drainage and plumbing infrastructure.

No matter the cause, when puddles hang around for days, the water turns stagnant, which is a recipe for algae, mould and mosquitoes. And if the puddles are close to the foundations of your home, this can lead to structural damage.

Overflowing Gutters

If your roof gutters regularly overflow during rain, the roofwater drainage system needs attention. If water can’t flow away from your roof effectively, it can find its way into places you don’t want it, like your ceiling cavity.

Common causes include:

  • gutters clogged with leaf litter and debris
  • incorrectly installed or undersized gutters
  • damaged or rusty guttering
  • clogged downpipes
  • cracked or rusty downpipes
  • insufficient or incorrectly installed downpipes.

Soil Erosion and Landscaping Issues

Poor stormwater drainage can wreak havoc on the yard when it rains. You may notice:

  • washed away mulch and topsoil
  • waterlogged lawn that feels squishy underfoot
  • small dips or holes in the lawn (which could indicate a bigger sinkhole underneath)
  • silt build-up on pathways
  • paver movement
  • yellowing plants caused by root rot.

Your Property Shows Signs of Drainage Problems – Now What?

Poor backyard drainage design leaves many homes vulnerable during the Brisbane storm season. The good news is that an experienced Brisbane plumber can help.

Salmon Plumbing offers a range of services that can improve your home’s drainage system, including:

Expert Plumber Insight Into Brisbane Suburbs with Drainage Challenges

John Salmon, veteran Brisbane plumber and founder of Salmon Plumbing, has spent more than three decades helping homeowners and businesses deal with post-storm plumbing damage. He says that geography poses the most significant risk to Brisbane properties when it comes to drainage and rainwater runoff.

In hilly Brisbane suburbs like Ascot and Bardon, homes situated on the side of a hill but lower than the road are more vulnerable to flooding and drainage problems. Meanwhile, in inner-city suburbs like Wilston, Paddington, and Petrie Terrace, homes are often on smaller blocks. This makes it challenging to perform repairs and upgrades on drainage infrastructure, especially when access restrictions make it impossible to get excavation equipment into the backyard.

John and the Salmon Plumbing team assist Brisbane homeowners with custom drainage design to address site-specific challenges. With early experience in water infrastructure and 35+ years as a Brisbane plumber, John’s extensive local knowledge and design expertise ensure your property’s drainage system will provide long-term flood-resilience.

Maintain Your Backyard Drainage Brisbane!

Get the most out of your drainage system by scheduling regular maintenance. You’ll give your property a fighting chance during Brisbane rain events and reduce the risk of inadvertently causing flooding on neighbouring properties, too.

Professional drainage maintenance, coupled with keeping on top of home maintenance (clearing out the gutters, keeping the yard tidy), can make a huge difference.

Don’t be the last Brisbane homeowner to get your backyard drainage sorted! Get in touch with Salmon Plumbing today.