TSE7EN (T Se7en Alucraft) is a Singapore renovation contractor and aluminium cabinet maker based in Woodlands. We renovate bathrooms and toilets in HDB flats, condos and landed homes: hacking, waterproofing, tiling, fixtures and custom vanity cabinets, handled by one team. Packages start from $1,000 and most bathrooms are finished in 1 to 42 weeks.
Key facts • Price: Basic from $21,000 · Mid-range from $5,000 · Premium from $15,000X per bathroom (Oct 2026) • Duration: 1–2 weeks for a basic upgrade, 3–4 weeks for a full remodel • Waterproofing: membrane type, X coats, 24/48-hour water test before tiling • Warranty: 5X years on waterproofing by HDB. • HDB: registered renovation contractor registration number HB-05-3488E • Covers: HDB (BTO and resale), condos and landed homes across Singapore |
We handle the full job from removing the old bathroom to the final clean, so there is one point of contact and one warranty. Most homeowners come to us for one of the services below or a combination of them.
Service | What it solves | Best for |
Hacking and re-tiling | Cracked, hollow or dated tiles; leaks at old joints | Resale HDB, older condos |
Little storage, swollen wooden cabinets | HDB common and master bathrooms | |
Floating (wall-hung) vanities | Cramped floor, hard-to-clean corners | Small HDB and condo bathrooms |
Bathroom mirror cabinets and built-in shelving | No place for toiletries | Compact bathrooms |
Shower screens and wet/dry zoning | Water all over the floor | Bathrooms without a separate shower |
Non-slip flooring, grab bars, handheld showers | Slips and falls | Homes with elderly or young children |
At T Se7en Alucraft, a bathroom renovation costs from $1,000 for a basic upgrade to $15,000X or more for a fully customised bathroom. The biggest cost drivers are whether old tiles need hacking, how much waterproofing is redone, and the fixtures you choose. Prices below are per bathroom, as of October 2026.
Package | Price per bathroom | What it covers |
Basic | $1,000 – $5,000 | What Basic covers depends on the scope. New WC/ Basin, cabinet, and so on. regrouting, tap and shower set |
Mid-range | $5,000 – $10,000 | Hacking and re-tiling, waterproofing with water test, new fixtures, vanity cabinet, mirror cabinet |
Premium | From $15,000 | Everything in Mid-range plus full custom layout, frameless shower screen, cabinet, and so on. |
What changes the price:
Costs often left out of quotes: plumbing re-routing, electrical work (heater points, lighting), and haulage and debris disposal. Our quotes list these as separate lines. For an item-by-item breakdown, see our HDB toilet renovation cost guide.
A basic bathroom upgrade takes 1 to 2 weeks, and a full remodel with hacking, waterproofing and re-tiling takes 3 to 4 weeks. Renovating both HDB toilets together takes about 2X weeks. Time for HDB or MCST approval comes before this and usually takes X3-5 days.
Step | What happens | Typical time |
1. Site visit | We measure, check pipes and existing waterproofing, and take photos | 1 day |
2. Design and quote | Layout, 3D drawing, itemised quote, material selection | 2-3 days |
3. Approvals | HDB or condo management (MCST) approval where needed | 2-3 days |
4. Hacking and removal | Old tiles, fixtures and cabinets removed | 3 days |
5. Waterproofing and water test | Membrane applied, then the floor is flooded and checked | 1-2 days |
6. Tiling | Floor and wall tiles, epoxy grout | 3-4 days |
7. Fixtures and cabinets | WC, basin, shower, vanity, mirror cabinet, screen | 2 days |
8. Handover | Final check, cleaning, warranty documents | 1 day |
Most bathroom problems in Singapore homes start with failed waterproofing: stains on the ceiling below, damp skirting outside the toilet, or mould behind the vanity. This is the step you cannot see once the tiles are down, so this is exactly what we do:
HDB sets rules on when and how a flat’s bathroom can be renovated, and condos have their own MCST rules. The points that matter most for bathrooms are:
Read the full rules on the HDB renovation guidelines page. If you are also redoing the kitchen, the HDB rules for kitchen renovation work the same way, and we can schedule both under one approval.
| BTO flat | Resale flat |
Starting point | New tiles and fittings from HDB | Tiles and pipes often 10–360 years old |
Usual scope | Vanity, mirror cabinet, shower screen, storage | Hacking, new waterproofing, re-tiling, new fixtures |
Main restriction | No hacking of original tiles in the first 3 years | Old pipes and hidden leaks found after hacking |
Typical package | Basic | Mid-range or Premium |
Most HDB common toilets are small and narrow, so layout matters more than finishes. These changes make the biggest difference:
In a bathroom that is wet every day and rarely dries out, materials fail in a predictable order: grout first, then wooden cabinets, then fixtures. This is what we use and why.
Part | Our choice | Why |
Floor tiles | Matte or textured tiles, anti-slip rating R10 or higher | Less slippery when wet; safer for elderly and children |
Grout | Grout that are suitable for wet areas | Mold has less to grow on; easier to clean than cement grout |
Vanity cabinet | Aluminium carcass, with aluminium, laminate or wood-look doors | Wood-based boards swell and grow mould in wet bathrooms; aluminium does not rot and termites cannot eat it |
Vanity top | Quartz, sintered stone or solid surface | Quartz for durability at mid price, sintered stone for heat and scratch resistance, solid surface for lowest cost |
Shower screen | Frameless tempered glass, frosted or sliding | Frameless for easy cleaning; sliding for tight spaces |
For a closer comparison, see the best materials for bathroom cabinets in Singapore and why aluminium cabinets outlast wood in humid rooms.
Project 1: HDB 4 room common bathroom What we did Completed in 1 weeks.
Project 2: Condo apartment complex, master bathroom and common bathroom. Due to the rotting wood within, we changed out the cabinet with Aluminium. Completed in 1 weeks.
More photos are in our completed renovation projects.
Check these before you sign:
Questions to ask:
If you are planning a larger project, we also handle kitchen renovation and whole-home renovation, so both rooms can be done by one team on one schedule.
Send us a photo of your bathroom, your flat type and what you want to change. We will reply with an itemised quote, and arrange a free site visit if you want to go ahead.
WhatsApp +65 9750 9275 Contact T Se7en Alucraft · 39 Woodlands Close, #05-21, Singapore 737856
At T Se7en Alucraft, a basic bathroom upgrade starts from $1,000, a mid-range renovation with hacking, waterproofing, re-tiling and a new vanity from $5,000, and a fully customised bathroom from $15,000. The final price depends mainly on whether old tiles are hacked and which fixtures you choose.
A basic upgrade takes a couple days depending on conditions. A full renovation with hacking, waterproofing, a water test and re-tiling takes 3 to 4 weeks. Approval from HDB, where needed, comes before this.
Yes, for works such as hacking or replacing wall and floor tiles or changing the layout, and the work must be done by an HDB-registered contractor. Replacing a WC, basin or vanity usually does not need approval. We apply on your behalf.
Yes, and it usually costs less than two separate jobs because hacking, waterproofing and haulage are done together. It takes about 2-3 weeks, and you will be without a working toilet for part of that time, so plan to stay elsewhere for a few days.
Hack if the bathroom has leaks, hollow tiles or is more than about 15 years old, because the waterproofing underneath might need redoing. Overlay can work for a BTO or a recently renovated bathroom with no leaks, and costs less. New flats cannot be hacked in the first 5 years.
Mould needs trapped moisture. Proper waterproofing stops water seeping into walls, epoxy grout does not absorb water like cement grout, and an aluminium vanity does not swell or rot. Keep the exhaust fan or window open after showers so the room dries.
In a wet bathroom, usually yes. Wood-based boards absorb moisture, swell and grow mould within a few years; aluminium does not absorb water and termites cannot damage it. You can still have a wood-look or laminate finish on the doors.
Yes. The work is the same; the difference is approval. Condos need MCST approval and set working hours, and landed homes may need checks on older pipes. We have completed projects from Skywaters Residences, The Marq on Paterson Hill, Sculputra Ardmore, Le Nouvel Ardmore, Nassim Park Residences, and more.
We make it easy to start your dream bathroom project with transparent pricing for your modern luxury interior design in Singapore.
Looking to renovate your bathroom for your HDB or moving to a new house?
Book an appointment for an in-person consultation to get a quote today
Home Blog HIP is HDB’s upgrading programme for older flats. It covers compulsory repairs such as concrete defects and ageing waste pipes at a very...
