Bathroom renovations in Cranbourne North
Cranbourne North bathroom renovations for Camden Green and the newer Casey estates. Twenty year old membranes, two wet areas and upstairs ensuite work.
Cranbourne North is the part of the postcode that hit its renovation window all at once. The suburb is dominated by estate housing from the 2000s, led by Camden Green, which began construction in 2003 on former market garden land alongside Narre Warren Cranbourne Road.
Newer subdivisions followed, including Sierra, Eve and The Avenue at Casey. The earliest of those houses are now at the twenty year mark, which is the point where the original shower membrane starts failing, so a large number of similar houses are all reaching the same problem in the same few years.
The twenty year membrane window
A membrane laid in 2003 or 2004 is well past the age at which waterproofing can be relied on, and it has had two decades of use to find its weak point. What that looks like from inside the house is usually one of four things: a dark patch on the skirting in the adjoining room, a spongy or drummy floor tile outside the shower, grout that keeps going dark after cleaning, or a musty smell in the hallway cupboard that shares a wall with the wet area. Those symptoms are set out in more detail on signs your shower is leaking.
A leak found at this stage is usually still cheap to deal with because the damage is confined to the wet area itself. A leak left for another two or three years starts reaching the flooring, the wall frame and the adjoining room, and the job stops being a bathroom renovation.
Two wet areas changes how the job is staged
Nearly every house in Cranbourne North has a main bathroom and an ensuite. That is useful, because the family can keep using one while the other is out of service. It also changes the economics. Both rooms were built at the same time by the same trades with the same membrane, so if one has failed the other is usually not far behind.
| Approach | How it runs | What it suits |
|---|---|---|
| Both rooms in one program | One demolition, one waterproofing visit, one tiling run, one plumbing rough in | Lowest total cost per room, household uses the laundry or a temporary shower for part of the job |
| Ensuite first, main bathroom later | Two separate jobs months apart | Spreading the spend, keeping the main bathroom usable throughout |
| Main bathroom only | One room, ensuite left for now | Where the ensuite has already been redone or the shower there is unused |
Doing both rooms together removes a second set of trade call outs and a second waterproofing visit, so the saving is real rather than notional. A single standard bathroom sits in the $21,000 to $36,750 band and an ensuite in the $14,000 to $25,000 band, and doing the pair back to back lands under the sum of the two priced separately.
Double storey houses and the upstairs ensuite
A good share of the later Cranbourne North stock is double storey with the ensuite and main bathroom upstairs. That adds three things to the job. Waste and water runs have to be traced through the first floor framing before the layout is settled, because moving a toilet upstairs is a much bigger change than moving one on a slab. The ceiling of the room below is exposed to any leak, so the waterproofing inspection matters more. And demolition material has to come down a staircase rather than out a back door, which is a labour item we allow for rather than absorb.
No old linings here, but check the ventilation
Bonded asbestos sheeting stopped going into Victorian wet areas long before the first slab was poured in Camden Green, so it is not a risk in this suburb. The common defect here is ventilation. Estate houses of this era were fitted with small exhaust fans, and many were ducted into the roof space instead of to outside air. That moves the moisture out of the bathroom and into the roof, where it condenses on the underside of the sarking. We replace the fan with one rated for the room volume and duct it outside as part of the renovation.
Access and the skip
Estate streets here are wide, driveways are usually double width, and a truck and a skip fit on site without a permit in most cases. The exceptions are the newest stages of The Avenue at Casey and similar releases where builder traffic, temporary fencing and unmade nature strips restrict where a bin can sit. Where a bin cannot go on the property, placing one on the road or nature strip needs City of Casey approval, and those fees change, so we check the current position at the time of quoting.
Compliance
Both rooms are quoted and built under the same registration, contract and waterproofing obligations, and a two room program produces one set of certificates rather than two. The thresholds behind all of that are on what the law requires.
The full strip out scope is on bathroom renovations, and repair versus rebuild is covered on shower repairs and waterproofing. If you want the timing mapped out before you commit, read how long a bathroom renovation takes, then send the details in using the quote form.