Bathroom Rough-in Plumbing
By Housecare Plumbing
Tiles get the Instagram photos. The rough-in plumbing gets the job done right. It’s everything inside the walls and under the slab — set before any tiling starts. Get it wrong and nothing fits properly on fit-off day.
The Problem
When planning a bathroom renovation, it’s easy to focus on tiles, vanity styles, and modern shower fixtures. However, the success of your fit-off day depends entirely on what happens behind the walls and under the slab during the rough-in stage.
Common issues when rough-in plumbing isn’t set correctly:
Inaccurate supply lines: Hot and cold pipes not set to precise height or standard centres, making mixer or tap installation frustrating.
Drain alignment errors: A shower drain off by even 20mm can prevent the shower base from sitting level or force uneven tile cutting.
Mismatch on pan connectors: Wrong positioning for the toilet spigot means the pan rocks, leaks, or fails to sit flush against the wall.
Vanity waste conflicts: Stub-out heights that don’t align with cabinet framing, requiring cabinet modification after delivery.
What We Do
Every trade downstream depends on what’s set at rough-in. Here is how we ensure your bathroom renovation goes smoothly:
Supply piping: Position hot and cold copper or PEX lines at exact heights and standard centres tailored to your chosen fixtures.
Shower drain positioning: Verify position and fall before the slab is poured or floor sheeting is laid.
Toilet pan fitting: Match spigot placement precisely to the toilet model being installed.
Cabinet coordination: Agree on basin waste stub-out height and position inside the vanity cavity with your carpenter before cabinets are built.
Bath overflow setup: Secure bath waste and overflow connections directly into framing or slab.
Get Plumbers In Early
Wrong positions after tiles are laid mean cutting — and cutting costs time and money. The cheapest time to get your plumbing right is before anything goes on the wall. If you’re planning a renovation, lock in your plumber before your tiler quotes.
Housecare Plumbing Services Pty Ltd
Fully Licensed & Insured
Melbourne
Phone: 0466 820 789
Website: housecareplumbing.com.au
Facebook: Housecare Plumbing
