depending on the size of the existing vanity it should be possible to have a similar new vanity or a custom unit made to replace the original but a chat with a plumber should be arranged to recommend suitable options and plan a schedule to remove the old and install the new, including any necessary waterproofing or tile repairs..btw careful removal could allow the original sink, taps and even the counter to be saved and recycled into a new vanity that matches the bathroom perfectly with the added option of being able to add different doors or drawers to the cabinet

Chris, like most things in our industry, the devil's in the detail and knowledge that best comes in the form of practical experience. Whilst a book or online resource can provide a guide, for something like a bathroom the strategy of attack can be practically varied depending upon the outcome and final detail desired. Are you changing plumbing? Are you having a seamless shower base? What is the scope of the tiling? Are you having a wall basin? taps in the basin or out of the walls? Shower taps or mixer? Bath freestanding or in hob? Vanity detail? any recesses? lighting? windows? Waterproofing is something honestly best left for the pros, as it needs to be done to certain standards. Preparation and straightening of walls/substrates is also critical for (most) tiled finishes, more or less so depending upon the particular tile selection. It's all that detail and the sequencing and coordination of and between the various elements/subtrades that's critical to the outcome. If you have a budget in mind perhaps it would be worthwhile you running your renovation project by a bathroom specialist to get a benchmark. You may be surprised as to how cost effective they can be to deal with it all themselves, and save yourself the inevitable headaches and hassles involved. Good luck! PD www.pauldistefanodesign.com

Have been double waterproofing for many years and NEVER had a bathroom leak Have renovated many 100 yr old bathrooms 1..... Remove floorboards, check dimensions ,spacing and condition of bearers and joists and if level...More often than not 100 yr old homes do not meet 2020 Standards And all supporting timbers require replacement ( Not a big job, worth the effort ) 2....Plumber should check drainage, moving items easy and cheaper at this stage 2 ....Lower if necessary to level timbers and Scyon to finish 40 mm lower than outside floor, fix to manufacturers spec 3... Plumber to fit item pipes and drainage penetrations ( Puddle Flange ) consider location of floor waste ...may be preferable under vanity drainage for shower and floor waste.. 4....Waterproof entire floor, up walls 300mm shower etc to standards Prime and we use Davco K10 plus, 5... Add water bars to shower and doorway, Sikaflex , adhesive/sealant ( NEVER Silicane ) ALL Walls to floor.' Shower corners to 2000 mm Waterproof second coat 6...Tiler to lay tile bed and establish fall to floor and shower 7.. After drying, Polyester bandage shower walls to floor, Waterproof Third Coat 8... Final Coat of waterproofing 9...Tiler to tile Ii takes around 7 days to waterproof as for $ 50,000 bathrooms Any further questions, Pleas feel free,If in Sydney Contact

Two options for your floor For a Quality Bathroom Renovation 1) Best Option Remove existing yellow tongue, the sheets may extend be under the walls to the adjoining room, can be done...NOT an easy job, hand saw and chisel 2( Hardies Ceramic Tile underlay nailed onto the existing yellow tongue, MUST be nailed to manufacturers specifications. Nails, as specified and spacing as specified. 3) Walls ...Plumb Studs, add noggins for vanity, recessed shaving cabinet et all check top and bottom plates 4) Rough In Plumbing 5) 6) Rough In electrical 7) Insulate walls with Sound Check Insulation,,, Add flashing angles in corners... 8) Fix Hardiflex to specifications 300mm centers, galvanized clouts if using wall tiles up to 15 mm use 6.5 thick villaboard, if over, use 9 mm villoaboard 9) Sikaflex with 11FC all gaps villaboard to floor, 10) Waterproof , apply ( Davco K10 plus, easy one to apply. not toxic nor inflamable whole floor, showed say 300 above shower screen 1 metre to sides of the shower, 600 above bath, vanity, 400 around remaining bathroom walls 11) Shower wall to floor, and about 300 past shower, add Polyester Bandage abt 100 mm wide 12) Fix water bars to, shower and door ( MUST be level ) with Sikaflex 11 FC 13) Second coat of waterproofing to all areas 14 ) Tiler to "top floor"/ lay tile bed, 15) After drying 4/5 days, WATERPROOF on top of tile bed, with another Polyester Bandage in shower area....the waterproof on top of the tile bed is to keep the tile bed dry .. two coats in shower 16) Commence tiling