Tile and waterproofing come next
After labour, tile is often the next big number, especially around a shower or tub. It has to go in slowly and precisely, over proper waterproofing, or you risk leaks and rot behind the wall a few years down the line.
The more tile you add, the faster this climbs. A full shower, a tiled floor, and an accent wall each cost you twice: once for the material, and again for the hours it takes to set it well.
Plumbing, fixtures, and finishes
Plumbing turns expensive the moment you move the toilet, sink, or shower. Rerouting pipes means more labour and more time, so keeping fixtures where they already are is one of the easiest ways to keep the overall cost of a renovation down.
Fixtures and finishes are where the total really swings. A basic vanity, countertop, faucet, or light fixture costs a fraction of a premium one, so a few upgrades here can quietly reshape the whole budget.
Where to focus your budget
Labour and waterproofing are hard to cut without giving up quality, so that is rarely where you want to save. The savings that don't come back to bite you usually come from keeping the layout and choosing durable mid-range finishes over premium ones.
Once you know where the money goes, planning gets easier. Use our bathroom renovation cost calculator to get a starting range, then compare local contractors and read how each one breaks the work down in a written quote.