Why Your Drains Keep Blocking (And How to Fix It)
Drain cleaner stops working after a few weeks? The blockage is coming back because the real problem hasn't been fixed. Learn what's causing it and how to solve it permanently.
Common Signs
Sink drains slowly after every few weeks
You unblock it, works fine for 2–4 weeks, then backs up again. Sign of an underlying issue not being fixed.
Multiple drains backing up simultaneously
Kitchen sink, bathroom sink, and shower all slow at once. Problem is in the main drain line, not individual traps.
Toilet bubbling or gurgling
Air trapped in pipes trying to escape. Indicates blockage downstream in sewer line or main drain.
Sewage smell from drains
Blockage preventing proper venting. Gases building up in pipes. Needs professional clearing.
Water pooling in yard or driveway
Stormwater drain or sewer blockage backing up into property. Environmental and health risk.
Used drain cleaner 3+ times in 6 months
Temporary fixes masking a bigger problem. Tree roots, grease buildup, or damaged pipe causing repeats.
Why This Happens
Tree Root Intrusion
Tree roots seek moisture and enter small cracks in pipes. Over time, they grow inside, blocking flow. Hydro-jetting clears roots temporarily; relining stops them permanently.
Grease and Fat Buildup
Kitchen grease solidifies inside pipes as it cools. Accumulates over months. Heavy rain or flushing wipes stirs it up, causing blockage. Prevention: never pour grease down sink.
Corroded or Damaged Pipes
Old cast iron or clay pipes develop cracks. Soil enters, sediment clogs, roots invade. CCTV inspection reveals damage; relining or replacement fixes it permanently.
Incorrect Pipe Pitch
Newer homes sometimes have drains installed with wrong slope. Water pools instead of flowing. Causes sediment buildup. Requires relocation or relining.
Foreign Objects (Wet Wipes, Hair, Debris)
Flushing non-toilet-paper items creates clogs that trap other debris. Each flush adds to blockage. Clearing once doesn't prevent future ones.
When to Call a Plumber
Call us for a CCTV inspection ($350). We'll see exactly what's blocking your drain—roots, grease, debris, or pipe damage—and recommend the permanent fix. Don't keep buying drain cleaner; let's solve it once and for all.
The Real Fix (Not Drain Cleaner)
Drain cleaner is a temporary bandage. It doesn't fix the underlying problem.
After chemical cleaner eats through a blockage, whatever caused it is still there—roots, grease, debris. It will build up again in 2–4 weeks.
Drain Cleaner (Temporary)
- ✗ Clears blockage temporarily
- ✗ Underlying cause remains
- ✗ Blockages return every 2–4 weeks
- ✗ Expensive repeat treatments
- ✗ Harsh chemicals damage pipes
Professional Fix (Permanent)
- ✓ CCTV inspection finds real cause
- ✓ Hydro-jetting clears blockage properly
- ✓ Relining stops root regrowth
- ✓ One treatment solves the problem
- ✓ Peace of mind for years
Prevention Steps
- ✓ Use drain strainers — catch food scraps and hair
- ✓ Never pour grease down the sink — let it cool and bin it
- ✓ Avoid flushing wipes — only toilet paper goes down drains
- ✓ Annual drain cleaning — if you have trees nearby or older pipes
- ✓ CCTV inspection once — know what's in your pipes, plan ahead for relining
Related Services
Still not sure?
Call our experts. We'll diagnose the issue and advise the best solution.
Call 1300 158 895