Stormwater Drainage The Gap
The Gap's clay-heavy soils and intense summer storms make stormwater drainage a real priority — not an afterthought. Yards that pool, drains that can't cope, and foundations at risk of water ingress are all common problems we fix. TBP Plumbers The Gap designs, installs and repairs stormwater systems across The Gap and the surrounding northwest Brisbane area.
Stormwater Drainage in The Gap — Hilly Blocks, Clay Soils, Summer Downpours
The Gap sits at the foot of the D'Aguilar Range, and the hilly terrain compounds the stormwater challenge already present across northwest Brisbane. During severe summer storms — Brisbane can receive 50–100mm in a single hour — water runs quickly off sloped blocks onto lower properties and into already-pressured drains. Clay-dominant soils don't absorb water quickly either, so surface runoff builds fast when drainage isn't keeping pace.
On The Gap's sloped blocks, a drainage problem doesn't stay where it starts — water follows the gradient straight to your foundations, under your slab and into your subfloor. The longer it's ignored, the worse the structural damage gets. We've seen what a single wet season does to a property with failing drainage.
We design, install and repair stormwater systems for properties across The Gap, Ashgrove, Bardon, Keperra, Enoggera and the surrounding northwest Brisbane suburbs — from straightforward downpipe connections to full drainage redesigns on large sloped blocks.
Stormwater Services
- New stormwater drainage installation
- Blocked stormwater pipe clearing
- Drainage pit installation and repair
- Downpipe connections and repairs
- Guttering installation and repair
- CCTV drainage inspection
- Yard and surface water management
- Stormwater / sewer separation
Signs Your Stormwater Drainage Needs Attention
Don't wait until a big storm — these signs mean your drainage system is already struggling.
Water pooling in the yard
Standing water after rain that doesn't drain away within a few hours is a clear sign drainage capacity is insufficient or blocked.
Water near the foundation
Moisture or water pooling close to your home's slab or stumps can cause long-term structural damage if drainage isn't directing water away effectively.
Overflowing gutters
Gutters that overflow during rain — even light rain — often mean a blocked downpipe or stormwater connection that's restricting flow downstream.
Flooded driveway
Driveways that flood or sheet water toward the garage indicate inadequate surface drainage or a blocked pit at the low point of the run.
Soft or eroded soil patches
Soft, boggy or sunken areas in the lawn between rain events can signal an underground pipe leak or a drainage pit that's overflowing into the soil.
Gurgling or slow drainage
Gurgling sounds from stormwater pits, or drainage that's noticeably slower than it used to be, indicates a partial blockage that will worsen over time.
Noticed any of these signs?
Don't wait for a big storm to confirm the problem. We'll inspect and quote — $99 call out fee.
Call (07) 3519 4689Company
Mon–Fri: 7:30am – 3:30pm
24/7 emergency on-call
How We Diagnose and Fix Stormwater Issues
We find the root cause first — then fix it properly so it lasts.
On-Site Assessment
We inspect your drainage system above and below ground, trace where water is going, and identify the point of failure.
CCTV Pipe Inspection
For underground issues, we run a camera through the pipe to pinpoint blockages, root intrusion, collapsed sections or joint failures — without digging.
Fixed-Price Quote
Once we know exactly what's wrong, we provide a clear fixed-price quote before any work begins. No surprises. You decide how to proceed.
Repair or Install
We carry out the work — whether that's clearing a blockage, repairing a broken pipe, installing new drainage pits, or designing a complete new system.
Common Causes of Stormwater Drainage Failure
| Cause | What Happens | Our Fix |
|---|---|---|
| Tree root intrusion | Roots enter pipe joints and grow, restricting or blocking flow | CCTV inspection, hydro-jet clearing, pipe relining or replacement |
| Debris build-up | Leaves, silt and sediment accumulate in pits and pipes over time | Pit cleanout, hydro-jet pipe flush, pit guard installation |
| Collapsed pipe | Old clay or concrete pipe sections crack and collapse under load | Spot repair or section replacement with uPVC pipe |
| Misaligned joints | Pipe sections separate or shift, creating partial blockages | Excavate and reconnect, or pipe relining to seal the joint |
| Inadequate design | System wasn't sized correctly — can't handle heavy rainfall events | Redesign and install additional pits, pipes and surface drainage |
Stormwater Drainage Pricing
Transparent pricing. Fixed quotes before any work begins.
Covers travel and on-site assessment during business hours. We'll diagnose the problem and provide a fixed quote before any further work.
Simple blockage clearing with hydro-jet equipment or manual clearing of pits and pipe runs. Quoted on the day after assessment.
New drainage systems, pipe replacement, new pit installation, or redesigns are quoted at a fixed price after the on-site CCTV assessment — cost depends on scope and access.
After-hours emergency call outs available — call to discuss.
Where We Service & Our Hours
Based in The Gap — covering The Gap and all Brisbane City Council suburbs.
Monday to Friday
7:30am – 3:30pm
Flooding from a failed drain, water coming into your home, or a complete stormwater backup — call us any time.
(07) 3519 4689Stormwater Drainage FAQs
Common questions about stormwater drainage in The Gap and the northwest Brisbane area.
Drainage problem in the northwest Brisbane area? Let's sort it out.
$99 call out. CCTV assessment. Fixed price before any work starts. Serving The Gap and Brisbane City suburbs — same day response where available.