Stormwater Pits & Drainage

Emergency Call – 24/7
0410 333 993

Why it matters?

When stormwater pits and drains aren’t working properly, you know about it fast – pooling water in the yard, flooding in the garage, driveways that turn into rivers and water heading straight toward the house instead of away from it.

Prolific Plumbing designs, installs, cleans and maintains stormwater pits and drainage systems across St George and the Sutherland Shire, helping homes and businesses cope with Sydney’s heavy downpours without the drama!

blocked-stormwater-drain

Watch us install this storm water pit and drainage in Oatley

What is a stormwater pit

A stormwater pit (or sump pit) is a collection point for rainwater from your roof, driveway, paths and yard. Water flows into the pit, then out through pipes to the legal point of discharge (usually the street gutter or council system).

When pits are missing, undersized, blocked or badly installed, water has nowhere to go. It can pool around the house and soak into foundations, back up onto driveways and paths, flood garages and lower levels, and cause erosion, damp and mould over time. A correctly designed pit and drainage system moves water away quickly and safely – even in a heavy storm.

24/7 Rapid Response

NEED OUR HELP?

Prolific Plumbing – Sydney, St George and Sutherland Shire Emergency
Storm Water Specialists – Call 0410 333 993 ANYTIME!

This field is required.
This field is required.

What Causes Blockages in Stormwater Pits?

Stormwater systems in Sydney are under constant pressure from weather, tree growth and general wear and tear. The most common causes of blockages we see are:

Tree roots chasing water

Tree and plant roots are one of the biggest reasons stormwater pipes block up. In our hot summers and dry spells, roots actively chase moisture and often find their way into joints, cracks and breaks in the drainage system. They can quietly grow inside the pipes for months or years before you notice a problem at the surface. A yearly CCTV drain camera inspection of your stormwater system is a smart way to catch root intrusion early and avoid major damage when the next big storm hits.

Damaged stormwater pipes

Stormwater lines are usually not buried as deep as sewer or water pipes, which makes them more vulnerable. Over time, ground movement, vehicle loads over driveways and landscaping works can crush, crack or dislodge pipes. Once that happens, water can’t flow properly, debris hangs up on the damaged sections, and blockages become a regular occurrence.

Environmental build-up

Leaves, dirt, sand, mulch, bark, sticks and small rocks are constantly being washed across driveways, paths, roofs and lawns. In heavy rain, all of this gets carried straight into pits and pipes where it settles and builds up. Over time, it restricts flow and eventually blocks the system.
It’s a good idea to check your stormwater grates and pits after major rain so you can remove visible build-up before it becomes a bigger issue underground.

Rubbish and debris

Litter, packaging, plastic, and other rubbish left around the property can easily be washed into stormwater pits and pipes. Once inside, these items can snag on pipe joints or grates and help form stubborn blockages.

Incorrect or illegal connections

Sometimes the problem isn’t what’s in the pipe, but where the pipe actually goes. We often find stormwater lines that are not connected to a proper discharge point, simply disappearing into the ground, or in the worst cases, illegally connected into the sewer. These setups cause ongoing blockages, flooding, and can create serious compliance issues.

If you suspect your stormwater pipes aren’t connected correctly, or they constantly block up, contact Prolific Plumbing. We can trace the system, identify incorrect or illegal connections, and design a compliant, long-term solution that actually moves water away from your property instead of straight into trouble.

our reviews​

We love what we do and it shows!
Have a read of some of the reviews on Google we’ve received from our customers…

Take Action Now

One call solves it all!

Signs Your Stormwater Pit or Drains Are Blocked

Stormwater blockages aren’t always obvious until the rain really hits, but there are a few warning signs you can look out for around your Sydney home. If you notice any of these, it’s a good time to call Prolific Plumbing before a small issue turns into a flooded yard or garage.

Slow or overflowing downpipes

If rainwater is backing up and taking a long time to disappear through your downpipes, or you see water spilling out over the top during heavy rain, it usually means the stormwater pipes or pit further down the line are struggling or blocked.

Cracks and movement around drains

Cracks around stormwater pits, drains or nearby concrete can be a sign that tree roots have made their way into the pipes and started to push and shift things out of place.

Bad smells after rain

If you notice an unpleasant odour around stormwater grates or pits, it can be caused by leaves, soil and other organic matter sitting in stagnant water and breaking down inside the pipes. Warm, damp conditions can also encourage mould growth, which is another hint that water isn’t draining away properly.

Pooling water and soggy patches

Flooding or puddles near stormwater pits, inspection points, driveways or paths are a classic sign of blockages. In the garden, constantly wet or boggy patches around stormwater grates or lines can mean water is building up in the soil because it has nowhere to go.

If you’re seeing any of these signs, your stormwater system may already be blocked or partially blocked. Prolific Plumbing can inspect, clean and repair stormwater pits and pipes so the next downpour flows away from your home, not into it.

How Does the Stormwater System Work in Sydney?

Stormwater is the rainwater that runs off roofs, driveways, footpaths, roads and other hard surfaces. In Sydney, that water is meant to be collected and carried away through stormwater pits and pipes to a legal point of discharge (usually the street gutter or council system).

When the stormwater system isn’t designed or maintained properly, that runoff can pool around buildings, flood garages and yards, and contribute to damp, structural damage and erosion over time. Poor drainage can also wash sediment and pollutants into local waterways, affecting water quality and aquatic life.

A stormwater pit acts like a collection point or sump. Water flows into the pit, then out through stormwater pipes. In some cases, soak wells are used so stormwater can slowly seep into the ground instead of running straight to the street.

Prolific Plumbing installs, repairs and maintains stormwater pits, pipes and soak wells for homes and businesses across Sydney. As licensed plumbers, we make sure your system is set up correctly from the start and kept in good working order, so it actually performs when the rain hits.

Stormwater pit cleaning & maintenance

Stormwater pits fill up with leaves, mud, silt and rubbish over time. If they’re not cleaned out regularly, the outlet pipe blocks, the pit fills like a bucket, and water simply spills over the top instead of draining away.

We offer one-off and scheduled stormwater pit cleaning for homes, units, strata complexes and carparks.
Our team will open the pit, remove built-up debris, check the outlet and pipework, and make sure water is actually flowing out to where it should. Regular pit cleaning before and after storm season is one of the simplest ways to prevent repeat flooding and surface water problems.

Why go with a professional plumber?


Plumbing is a qualified skill that ensures clean water and sanitation for your home and business. Not only does a professional plumber have the right skills and training for installing, repairing and replacing your hot water system, they also have the right expertise, insurances and will ensure your warranty remains intact should something go wrong with your product. They provide you with the reassurance and peace of mind with respect to the complexity of the job at hand, saving you a lot of time and money in the long run.

Plumbing rules and regulations can vary from state to state. Your plumber is required to have passed the state’s standards to obtain their license, making them the expert on these rules. Licensed plumbers warrant their work, covering you for the installation and work carried out.

With the proper tools and equipment, a professional plumber can complete the job at hand efficiently and safely, protecting your property and avoiding health and safety risks.

Take Action Now

One call solves it all!

Common stormwater
issues we fix

Around Oatley, Mortdale, Hurstville, Peakhurst, Lugarno and the Shire, we’re often called out for:

1. Yards and driveways that turn into lakes every time it rains
2. Pits that fill up and overflow instead of draining
3. Blocked stormwater lines full of silt, leaves, mud or tree roots
4. Broken or collapsed pipes between pits and the street
5. Old, unsafe or sunken grates that are rusted or trip hazards

Sometimes it’s as simple as a blocked pit that needs a proper clean; other times the whole layout needs rethinking so the water actually has a path out.

Our stormwater pit services

Prolific Plumbing can help with:

1. New stormwater pit installation
2. Additional pits and drains to relieve pooling
3. Pit cleaning and unblocking
4. Repairs and upgrades to damaged pits and pipework
5. CCTV drain inspections and tree root removal
6. Stormwater solutions around granny flats, garages and low-lying areas

We’ll assess how water moves across your property, look at roof and surface drainage, and recommend a practical solution that actually works when the rain hits.

Stormwater emergency? We can help

If you’re dealing with serious flooding, water entering the house or garage, or damage after a big storm, we can attend quickly to get things under control. That might mean clearing a blocked pit, pumping out water, or temporarily diverting flow, then planning a permanent fix once conditions are safe.

Book a stormwater pit inspection or clean!

If you’re sick of watching water pool in the same spots every time it rains, or you’re worried your pits are full and not doing their job, get in touch with Prolific Plumbing. We’ll inspect your stormwater pits and drainage, clean them out if needed, explain what’s going on in plain English, and put together a solution to keep water moving in the right direction – away from your home.

WHY CHOOSE US

check icon Locally based in Sydney.
check icon Honest and reliable
check icon Upfront costs, no hidden charges
check icon All the services are fully insured and licensed
check icon Highly trained and certified plumbers having great communication skills
check icon Emergency service is available 24 hours
check icon We strive to get you the best outcome

GET A LICENSED PLUMBER EVERY TIME!

prolific plumbing team

Contact us today!

Don’t risk anything less when it comes to the safety of your property. For the best advice, fixed pricing and service – get in touch with us today!

Scroll to Top