Hills District
Bathroom Renovations Castle Hill
When the ensuite becomes the thing you argue about
In a lot of Castle Hill households, the ensuite is the flashpoint — two adults, one vanity, a shower that's started smelling faintly of damp no matter how often it's cleaned. It's rarely urgent enough to act on until it suddenly is: a tile cracks, water starts tracking somewhere it shouldn't, and what was an annoyance becomes a real problem behind the wall.
For a family stretching into a second or third child, a single bathroom serving the whole house stops working fast — bath time, homework time and bedtime routines all fighting for the same room. For an investor, a tired Castle Hill bathroom is one of the fastest ways to lose a good tenant or a strong offer; buyers and renters both read a dated wet area as a sign of what else hasn't been maintained — see our cost benchmarks by suburb for what a refresh typically returns.
Picture a Castle Hill household expecting a third child — one bathroom, and a bath-and-bedtime routine that's stopped fitting into the evening. The usual fix is splitting the room to add a second basin and separate the toilet, so two kids can be in and out while a third is still in the bath.

3–4 weeks on site
Most bathrooms finished in three to four weeks, not months
Certified waterproofing
AS 3740 compliant, so leaks don't come back
Fixed quote
Itemised price before work starts, no surprise extras
Sydney bathrooms, one crew
Renovating a bathroom in Castle Hill?
Across Sydney we do one thing: bathrooms. Full renovations, ensuites, laundries and shower rebuilds — nothing else competing for the crew's attention. That focus is what lets us hold a three to four week build in Castle Hill instead of leaving a room half-tiled while the trades chase another site.
- Licensed NSW contractor (Lic. 393475C), fully insured
- Waterproofing certified to AS 3740, with photo records at every coat
- Itemised written quote before demolition — every tile, mixer and fitting listed
- One crew, one supervisor, workmanship warranty
More on how we work: bathroom renovations Sydney · our process · all service areas
Housing & construction
The house behind the renovation
Castle Hill's double-storey brick homes almost all share the same layout: main bathroom and ensuite upstairs, resting on a timber subfloor. That fact drives three decisions on every job — how the walls get sheeted, what fall the drainage gets set to, and how many layers the waterproofing membrane needs. Get any of those wrong on a timber subfloor and the failure shows up as damage in the ceiling below, which is exactly what AS 3740 — the Australian Standard covering wet-area waterproofing — exists to prevent.

Two wet areas, one visit, one quote
Main bathroom and ensuite on the same floor is the standard Castle Hill scope, and we measure both together when that's the job. Every cost sits on its own line in the quote — tiles, tapware, waterproofing, rubbish removal — with nothing folded into a catch-all figure.
Renovating in Castle Hill
What we usually find in Castle Hill bathrooms
The age and build of the house sets the scope long before the tiles do. Here's what we plan for around Castle Hill.
01
Late-80s Castle Hill bathrooms typically have sand-and-cement beds over slab — full removal is the only honest starting point.
02
Dual-occ builds share walls and services; we isolate wet-area plumbing so the neighbouring dwelling keeps running.
03
Families here almost always want a bath kept in the main and a walk-in shower in the ensuite.
Castle Hill specifics
What a Castle Hill bathroom renovation costs
Key variables that influence your renovation cost in Castle Hill, assessed upfront so your quote stays fixed.
One bathroom or two
main bathroom and ensuite quoted and built together saves on both price and disruption versus running them as separate jobs.
What's behind the existing tiles
a subfloor or waterproofing membrane that's failed adds rectification time we won't know the full extent of until we're behind the wall.
Layout changes
moving a toilet or wall, like separating a combined bathroom, adds plumbing and structural cost beyond a like-for-like refit.
Fixture tier
standard fixtures keep costs contained; frameless glass, freestanding baths, and premium tapware move the number up.
Local proof
Bathrooms we've completed near Castle Hill
We're in the Hills most weeks, so the same crew, waterproofer and tiler you meet at the measure are the ones on your job.
120+
Hills District bathrooms completed
3–4 weeks
Typical time on site
5.0
Google rating across Sydney jobs

Luxury Main Bathroom
A tired 1990s main bathroom stripped back to studs and rebuilt as a bright, hotel-style room with marble-look porcelain, a lit niche and a stone-top timber vanity.
4 weeks on site

One Bathroom Turned Into Two
A single long bathroom in a Woodcroft family home, reworked into a main bathroom and a separate ensuite so a household of five stopped queueing every morning.
5 weeks on site
Questions
Common questions from Castle Hill homeowners
Short answers to what people ask before booking a measure.
$22,000 to $38,000. That's the honest band for a full bathroom renovation on the housing stock here, and it holds whether you're doing one room or two. What moves you up or down inside it: how many bathrooms, the condition under the sand-and-cement bed, whether walls shift, and the bathroom fixtures you pick. A main bathroom alone lands low. A main and ensuite together lands high. You'll see every line before you commit, because the bathroom renovation quote is itemised rather than a lump sum. Compare your suburb against cost benchmarks by suburb if you want the wider picture.
Three to four weeks, start to finish. Not three to four weeks per room — the whole build. The reason it holds is that nothing waits: one crew and one supervisor stay with the job, so there's no gap between trades and no re-booking. Strip-out, rough-in, bathroom waterproofing, bathroom tiling, fit-off, handover. If the main bathroom and ensuite go in together, the timeline doesn't stretch, because both sit upstairs and share a wall. And if it's the only bathroom in the house, we sequence the work so you keep a working shower through most of it.
We stop and show you. Nothing gets covered up and nothing gets added to your bill without your agreement in writing first. On the late-80s homes here, the surprises are fairly predictable: sand-and-cement beds over slab, a timber subfloor under a double-storey brick build, shared walls where a dual-occupancy sits next door. Those are priced as provisional sums in the quote, so the risk is visible before we lift a tile. Where a neighbour shares the wall, wet-area plumbing is isolated from their side. Bathroom waterproofing is applied to AS 3740 by a licensed waterproofer, and the application is photographed at each coat. The certificate of compliance follows at handover. Licence 393475C.
Carefully, and in a set order. Stairs, landings, floors and doorways get covered before demolition starts, and everything goes up by hand rather than being dragged along walls. Both wet areas in a double-storey home sit above a timber subfloor, which is exactly where a rushed shower renovation announces itself later — as a stain on the ceiling underneath. So the membrane gets photographed coat by coat, and you receive the compliance certificate when we hand back the keys. Evidence, not assurances.
Yes, and no travel surcharge applies. We measure on site, usually inside a week, and the visit runs about an hour. The written quote follows a few days after that. We won't hand you a fixed figure before the measure, because a price quoted without seeing the room is a price that moves later. On a double-storey home we measure the main bathroom and ensuite in the same visit — they share a wall and a plumbing stack, so they should be priced together. That's how a bathroom remodel Castle Hill project should begin.
Ask us what we do and the answer is whatever the room needs. Some homeowners want one wet area reworked; others want the whole room stripped back and rebuilt. Strip-out, rough-in, AS 3740 bathroom waterproofing, bathroom tiling, bathroom fixtures, fit-off. We also reconfigure layouts — splitting one room into two, moving a toilet behind its own door. Where a dual-occupancy shares a wall, wet-area plumbing is isolated so next door is unaffected. The bathroom renovation services Castle Hill homeowners ask for most are the combined main-plus-ensuite jobs, and they're run by bathroom renovation specialists who know these walls. A dedicated crew and a dedicated supervisor, licence 393475C.
Free on-site measure and a written, itemised quote for your Castle Hill bathroom.
From yes to handover
Three stages, three to four weeks. Before the first day, you'll have a fixed price, a real timeline, and the name of the one person turning up each morning.
Bathrooms are consistently among the higher-return renovation projects in a home — Houzz Australia's renovation cost data is a reasonable general benchmark if you want to compare quotes, though figures should be checked as they move year to year.
How it works
What happens once you say yes?
Three stages and three to four weeks on site. You'll know the price before we start, how long the bathroom is out of use, and who is turning up each morning.
Measure, design and written quote
We measure the room, check the drainage and what's behind the walls, then give you a scaled layout with every fixture listed and a written price that holds once it's signed.
Strip-out, rough-in and waterproofing
Back to frame, licensed plumbing and electrical rough-in, then waterproofing to AS 3740 photographed at every coat. Same crew, same start time, swept down before we leave each day.
Tiling, fit-off and handover
Tiling, glass measured off the finished walls, tapware and joinery installed. Then we walk the room with you, fix anything you pick up, and hand over the certificates and a workmanship warranty.
Nearby Suburbs
Bathroom Renovations Across Castle Hill
Our licensed renovation crew services Castle Hill and surrounding Hills District suburbs with fixed-price quotes and certified waterproofing.
Free quote
Get a free quote in Castle Hill
Tell us roughly what you're after. We come out to Castle Hill, measure the room, and send back a written quote with every fixture and fitting listed.
- Free on-site measure anywhere in Castle Hill
- A local crew who already work across the Hills District
- A written quote with every tile, mixer and fitting listed
- Licensed, insured, fully documented
Other pages Castle Hill homeowners find useful.
