Your shower is leaking through the ceiling below. Your toilet won't stop running. Is this a quick repair or the start of a full bathroom renovation? These aren't problems that sort themselves out. A running toilet adds hundreds to your annual water bill. And starting a renovation without proper plumbing means ripping out tiles, redoing waterproofing, and paying twice.
A leaking shower doesn't just drip. Water gets behind tiles, into wall cavities, and down through the floor. A failed waterproofing membrane or cracked shower base can lose 20 to 50 litres per day, but the water bill isn't the real cost. The real cost is what's happening behind the wall. Timber framing soaking through. Mould spreading inside cavities. Structural water damage building up out of sight. By the time you notice staining on the ceiling below or mould on the grout lines? Repairs can run $5,000 to $15,000. In Balmain's multi-storey terraces, a first-floor shower leak often ruins the room below before anyone spots a cracked tile or a failed seal.
A running toilet looks harmless. A faulty cistern valve or worn flush seal lets water trickle constantly into the bowl. You barely hear it. But a running toilet wastes over 20,000 litres per year. That's $100 to $200 on your annual water bill for a problem that's usually a $150 to $300 fix. The toilet repair cost is a fraction of the water you're losing.
Then there's the renovation you've been putting off because the existing plumbing won't support it. Heritage bathrooms in Balmain terraces often have lead waste pipes, galvanised water lines, and no waterproofing at all. A dripping tap, low water pressure, or a slow-draining basin? All signs the plumbing has reached the end of its life. You can't tile over these problems. The pipes and waterproofing need to be done properly before the tiler or anyone else starts work. Skipping that step means you'll be pulling tiles off the wall six months later. The bathroom renovation cost climbs fast when old pipes force rework halfway through.
Your Balmain terrace house was likely built between the 1870s and 1910s. The bathroom plumbing reflects that era. Lead waste pipes and galvanised supply lines are standard in Victorian home bathrooms across the peninsula. These pipes corrode from the inside over decades, producing rust-coloured water, blockages, and pressure drops that worsen year by year. When you renovate a heritage bathroom, every metre of that old pipework needs replacing before anything else happens. Heritage-listed under Inner West Council's register? External plumbing modifications may need council approval before work begins. Pipe routing has to avoid damaging original features. The same applies to homes across Rozelle, Annandale, and Haberfield, where Federation-era plumbing faces identical problems.
Balmain terrace bathrooms are long and narrow, most only 1.5 to 1.8 metres wide. The toilet, shower, and vanity unit line up along one wall. Move a fixture 200mm and the entire flow of the space changes. The floor waste position alone determines whether the shower drains properly or pools water against the door. Standard bathroom layouts from display homes don't work here. You need a plumber with hands-on experience in period homes where tight dimensions force precise pipe routing and careful fixture placement.
Most Balmain terraces are two storeys, with the bathroom on the first floor. When the waterproofing membrane fails, or was never installed to AS 3740, water doesn't just damage your bathroom. It travels through the floor structure. Into the ceiling, walls, and floor of the room below. In a Victorian home with original timber framing, that moisture causes rot. Structural weakening that's expensive to fix. The same risk applies to converted warehouses and apartments in Rozelle and Lilyfield. Proper waterproofing isn't optional in these buildings. It's the barrier between your bathroom and thousands of dollars in damage to the level below.
We're a licensed bathroom plumber based in Balmain, fully insured, specialising in heritage and modern homes across the Inner West.
Shower repairs. The source of a leaking shower gets tracked down first: failed shower screen seal, cracked base, damaged waterproofing membrane, or faulty mixer tap. Some leaks can be fixed with a same-day repair. Others need the shower recess stripped back and re-waterproofed to AS 3740. Either way, we diagnose first and give you upfront pricing with no hidden fees before any work begins.
Toilet repairs and replacement. Running toilets, leaking cisterns, blocked toilets, faulty flush mechanisms. Cracked cistern or unit too old for parts? Replacements from Caroma and other quality fixtures through Reece are supplied and installed. Most toilet repairs are same-day.
Waterproofing to AS 3740. The waterproofing membrane is the single most important layer in any bathroom. Waterproofing is applied and certified in shower recesses, across bathroom floors, and around all wet area junctions. Everything in compliance with the building code and Australian Standard AS 3740. You receive a waterproofing certification on completion. If your existing membrane has failed, we strip back and redo it properly. Cutting corners here leads to the kind of damage described above, and no amount of tiling fixes a waterproofing problem underneath.
Renovation plumbing: rough-in and fit-off. A full bathroom refit happens in two stages. Rough-in plumbing covers all pipework behind walls and under floors before waterproofing and tiling. All water supply lines, waste pipes, and the floor waste are installed or relocated to AS/NZS 3500. If your heritage bathroom has old lead or galvanised pipes, we replace them during the rough-in so your renovation sits on modern, compliant plumbing. Fit-off plumbing is the second stage. After tiling, we return to connect the vanity unit, mixer taps, shower screen, toilet, and any other fixtures. Every connection is tested. Water pressure and drainage confirmed correct. One plumber from start to finish, tidy work, no handoffs.
Coordination with builders, tilers, and waterproofers is part of the job. Running the renovation yourself? The plumbing is managed independently. If your bathroom also needs a hot water system installation, we handle that at the same time. Recurring drain problems in older bathrooms often point to deeper pipe issues. See our blocked drain services for those situations. Visit our plumbing services in Balmain for general maintenance, or call 0411 142 228 for a free quote on any bathroom plumbing work.
The tiling is done, the grout is set, and you step into a shower that drains cleanly with no puddles pooling at your feet. Hot water reaches the right temperature. The toilet flushes and stops. Every connection behind the walls is tested and holding. That's what a properly plumbed bathroom feels like, and it's easy to take for granted until you've lived without it.
The quality that matters most in bathroom plumbing is invisible once the tiles go on. Waterproofing certified to AS 3740 protects the structure below your bathroom for the long term. Every pipe connection is pressure tested before the tiler starts. Every waste line is checked for correct fall. You receive a waterproofing certification and documentation of the completed work. If a question ever comes up about what's behind the walls, you have the answer on file. The plumbing under the tiles is backed by our 12-month workmanship guarantee. If anything related to our work develops a fault, we come back and sort it at no charge.
Tiles and tapware change with fashion over the next 20 years. The plumbing behind them shouldn't need to.
