NSW contractor licence 260823C
Lift pit waterproofing in Sydney
We stop water coming into lift pits in apartment buildings, working from inside the pit once the lift company has made it safe.
Finished look- Arranged with your lift company
- Pit pumped out and cleaned
- Leaks stopped at joints and cracks
Get a free quote
Lift pit waterproofing
Add photos if you can. We usually reply within one business day.
NSW contractor licence 260823C
Our service
What lift pit waterproofing includes
Working with the lift company
The lift contractor takes the lift out of service and makes the pit safe before anyone goes in, then returns it to service afterwards.
Pumping out and cleaning
The pit is emptied and cleaned so the leaks can be seen and the concrete prepared.
Stopping leaks at joints and cracks
The base-to-wall joint, cracks and tie holes are injected or plugged where water is running.
Lining the pit
A crystalline or cementitious system on the base and walls, with the corners detailed first.
Sealing penetrations
Pipes, conduits and fixings through the pit walls are sealed so they don’t become the next leak.
Signs
What to look at before calling
Where the water appears
Water at the base corners points to the joint between slab and walls; a wet streak down one wall points to a crack or tie hole; water around a pipe points to the penetration.
Whether it follows the weather
A level that rises after heavy rain points to groundwater or stormwater. A steady trickle in dry weather is worth checking against nearby pipes before waterproofing.
What the lift technician has reported
Lift technicians often see the water first. Their notes and photos show the pattern before access is booked.
The build-up
Inside a lift pit
A lift pit lined from inside, with the base-to-wall joint detailed.
Takes foot traffic during lift servicing without damaging the lining.
Applied to the base and walls in coats.
Stops running water before the lining goes on.
Ground back to clean concrete before treatment.
Under the building, so the outside face can’t be reached.
Diagram of a typical job, not to scale. Select a layer to see what it does.
Step by step
How the job runs
- 1
Photos and a quote
Photos of the pit and where water is coming in, and a free written quote for the owners corporation or building manager.
- 2
Lift out of service
The lift contractor takes the lift out of service and makes the pit safe before anyone goes in.
- 3
Pumped out, leaks stopped
The pit is emptied and cleaned, then the base-to-wall joint, cracks and tie holes are injected or plugged.
- 4
Lined and handed back
A crystalline or cementitious lining goes on the base and walls, then the lift contractor returns the lift to service.
Prices
How we price lift pit waterproofing
A lift pit is priced on its size, how much water is coming in and when the lift company can hand it over, so we price it from photos or a visit. Quotes are free.
What moves the price: our cost guideWhy choose us
Licensed, insured and backed in writing
A licensed waterproofer who does the job once and does it properly, with the insurance, paperwork and warranty to back it.
Check licence 260823C on the NSW registerLicence 260823C
NSW Waterproofing Technician since 2013, current to 10 July 2028.
$20m insured
Public liability cover on every job, big or small.
Statutory warranties
On home building work in NSW: six years for major defects, two for others.
Tested before it’s covered
Showers, bathrooms, balconies and flat roofs flood tested, with a waterproofing certificate.
Reviews
What customers say
Every review is shown word for word, straight from Google.
Absolutely amazing work, really nice team and super flexible, our bathroom looks amazing 👏
Before you book
Details and questions
Still not sure?
Send a few photos of the job and the answer comes back with your free written quote.
Send photos for a quoteCall 0451 662 300More about this work
A lift pit is the lowest point in the building: a concrete box set below the basement floor, often below the water table. Groundwater pressing on it finds every construction joint between the base and walls, every tie hole and any crack, and water collecting in the pit sits right where the lift’s equipment and buffers are.
Because the outside of the pit is buried under the building, the work is almost always negative-side: stop the active leaks, prepare the concrete and apply a system that holds against water pressure from behind.
In a strata building the lift pit is usually common property, and repair work on its waterproofing is generally regulated remedial building work under the Design and Building Practitioners Act 2020, so the owners corporation should allow for a registered design before work starts.
Does the lift have to be shut down?
Yes, for as long as anyone is working in the pit. The lift contractor isolates it and makes the pit safe, so the timing is set with them and the building manager.
Why is there water in a new building’s lift pit?
Lift pits are poured in stages and sit below the rest of the basement, so the joint between the base and walls is under the most water pressure in the building. If that joint wasn’t detailed with a waterstop, or the concrete there wasn’t well compacted, water finds it early.
Who arranges the work in a strata building?
Usually the strata or building manager, as the pit is common property. They also book the lift contractor and give residents notice that the lift will be out of service.
Related
Keep reading
Related work
Standards and rules referred to on this page (1)
- 1.NSW Government: Remedial building work in regulated buildings (checked 12 October 2026)