Weiken Interior Design is the top pick for full kitchen overhauls because it bundles hacking, waterproofing and tiling under one contract with a single project manager. Design 4 Space is the runner up for whole unit renovations where the kitchen is one workstream among several. Ciseern by Design is the third choice for established HDB and private residential projects where you want a long standing local presence. Always ask for the membrane brand in writing, demand dated ponding test photos before tiling starts, and confirm who carries the warranty if a leak appears months later. A stain blocking coat on the ceiling does not fix the leak above. It only hides the mark.
How we picked this list
We assembled this shortlist through desk research across public sources, checking that every website resolves and the business is actively trading. We ranked firms based on their ability to handle wet works, including membrane application and plumbing points, as part of a renovation scope. We prioritized transparency regarding subcontractors and warranty terms in their documented processes. No placement on this list is paid or sponsored.
Table of Contents
- How we picked this list
- Table of Contents
- Intro
- Quick Picks
- Comparison Table
- 1. Weiken Interior Design
- 2. Design 4 Space
- 3. Ciseern by Design
- 4. Unimax Creative
- 5. The Interior Lab
- 6. ISOTeam
- 7. Sky Creation
- 8. Absolook Interior Design
- 9. Mr Painter
- 10. Nippon Paint Singapore
- How to Choose
- FAQ
Intro
Many homeowners believe that tiling a kitchen floor automatically waterproofs it. This is a dangerous misconception. Tiles are not waterproof. Grout lines are porous. Water travels through the screed and into the structure unless a dedicated membrane is applied and tested before the tiles go down. If you are renovating an HDB flat or condo, the decision is harder because you are juggling HDB renovation permits, condo management deposits, and the fact that your kitchen is often the only wet area in the flat. You need a contractor who understands that the membrane is the critical layer, not the decorative finish. I researched this list to help you identify firms that treat waterproofing as an engineering step, not just a line item in a renovation package.
Quick Picks
Choose Weiken Interior Design if you want a full kitchen overhaul with hacking, plumbing and tiling under one contract. Choose Design 4 Space if you are renovating a whole unit and need structured scheduling across multiple trades. Choose ISOTeam if you are an MCST or landed home owner with a large, multi area waterproofing scope that exceeds standard residential jobs.
Comparison Table
| Business | Best for | Price band | Area |
|---|---|---|---|
| Weiken Interior Design | Full kitchen or kitchen plus bathroom overhaul | Quoted per project | Not stated |
| Design 4 Space | Whole unit renovation with kitchen as one workstream | Quoted per project | Not stated |
| Ciseern by Design | Full renovation where kitchen is one line item | Quoted per project | Not stated |
| Unimax Creative | Design, carpentry and wet works from one company | Quoted per project | Not stated |
| The Interior Lab | Design led renovation for kitchen plus living area | Quoted per project | Not stated |
| ISOTeam | MCSTs, managing agents, or landed owners with large scope | Contract based | Not stated |
| Sky Creation | Design led renovation including kitchen wet works | Quoted per project | Not stated |
| Absolook Interior Design | Bundling kitchen makeover with other rooms | Quoted per project | Not stated |
| Mr Painter | Repainting walls and ceilings after wet works | Quoted per job | Not stated |
| Nippon Paint Singapore | Choosing wall and ceiling coatings after wet works | Quoted per job | Not stated |
The List
1. Weiken Interior Design
Weiken Interior Design handles HDB flats, condos and landed homes end to end. Their kitchen wet works, which includes hacking, screeding, membrane application, plumbing points and tiling, sit inside one renovation contract. This approach removes the headache of coordinating separate trades for the same floor space.
- What’s good
- One contract covers hacking, plumbing points, waterproofing and tiling.
- Project manager acts as a single point of contact.
- Familiar with HDB renovation permits and condo management submissions.
- What to watch
- The membrane is usually applied by a wet works subcontractor, so ask which one and which product.
- Get ponding test photos before tiling starts, not after.
- Design led firms often quote higher than a dedicated waterproofing contractor for the same square metres.
Who it suits
This is ideal for homeowners doing a full kitchen or kitchen plus bathroom overhaul. If you only need a membrane applied to an existing floor without hacking, look for a dedicated waterproofing specialist instead.
Price
Quoted per project.
Details
Name: Weiken Interior Design
Website: weiken.com
2. Design 4 Space
Design 4 Space runs full home projects where wet area works like kitchen and bathroom waterproofing and tiling are scheduled alongside electrical and carpentry. Their strength lies in structuring the project so that different trades do not clash on site.
- What’s good
- Structured project scheduling across trades.
- Handles design, permits and site coordination.
- Can sequence waterproofing around carpentry and electrical work.
- What to watch
- Ask for the membrane brand in the written quote, not verbally on site.
- Clarify whether the water test is included or charged separately.
- Workmanship warranty and product warranty come from different parties.
Who it suits
This fits owners renovating a whole unit where the kitchen is one workstream among several. If you are only touching the kitchen floor and not the walls or plumbing, a smaller scope contractor may be more responsive.
Price
Quoted per project.
Details
Name: Design 4 Space
Website: design4space.com.sg
3. Ciseern by Design
Ciseern by Design is an established renovation and interior design outfit serving HDB and private residential projects. Wet works for kitchens and bathrooms are part of their standard renovation scope, making them a familiar choice for those who value longevity and process in Singapore.
- What’s good
- Long presence in the Singapore renovation market.
- Process for handling wet works and tiling.
- Used to working with HDB renovation rules.
- What to watch
- Confirm the waterproofing subcontractor and product before signing.
- Check what happens if a leak shows up after handover, and who pays for the second site visit.
- Scope wording in renovation packages can be broad, so list each wet area separately.
Who it suits
This suits flats undergoing a full renovation where the kitchen waterproofing is one line item inside a larger package. If you need emergency leak repair rather than renovation, this is not the right fit.
Price
Quoted per project.
Details
Name: Ciseern by Design
Website: ciseern.com
4. Unimax Creative
Unimax Creative is a renovation and interior design firm with a large residential project base. They handle kitchen and bathroom wet works, including waterproofing and tiling, within the renovation contract. Their high volume means they have standardized site processes for these tasks.
- What’s good
- High project volume means familiar site processes.
- Showroom based selection for tiles and finishes.
- Single contract for most trades.
- What to watch
- Confirm which party applies the membrane and who carries the warranty.
- Ask how they protect the rest of an occupied flat from dust.
- Check the payment schedule against work stages, not just dates.
Who it suits
This is for owners who want design, carpentry and wet works from one company and one invoice. If you are looking for a quick, single day membrane job, their project based approach may be overkill.
Price
Quoted per project.
Details
Name: Unimax Creative
Website: unimax.com.sg
5. The Interior Lab
The Interior Lab works on residential flats and condos in Singapore. Kitchen and bathroom wet areas are typically part of a full renovation scope with them. They focus on design led approaches, which is useful for smaller kitchens where space optimization is key.
- What’s good
- Design focused approach to small kitchens.
- Portfolio of residential projects.
- What to watch
- Verify their current company details, website or scope before shortlisting.
- Confirm they take on standalone kitchen waterproofing or only full renovations.
Who it suits
This suits owners comparing design led renovation firms for a kitchen plus living area project. If you need only waterproofing without design or carpentry, check if they offer this as a standalone service.
Price
Quoted per project.
Details
Name: The Interior Lab
Website: theinteriorlab.com.sg
6. ISOTeam
ISOTeam is an engineering and building maintenance group. Their repairs and redecoration work covers waterproofing for buildings, town councils and commercial premises. Their work is generally project or contract scale rather than a single kitchen in an HDB flat.
- What’s good
- Waterproofing and repainting are core business lines.
- Used to contract scale scheduling and site documentation.
- Experience with building wide defects and leakage work.
- What to watch
- A single HDB kitchen is usually far below their project size.
- Residential owners should ask whether they take direct private jobs or only through contracts.
- Timelines run on project schedules, not a weekend job.
Who it suits
This is best for MCSTs, managing agents, and landed property owners with a larger or multi area waterproofing scope. If you have a single kitchen leak in a condo, a residential specialist is more appropriate.
Price
Contract based.
Details
Name: ISOTeam
Website: isoteam.com.sg
7. Sky Creation
Sky Creation is a Singapore interior design and renovation firm serving residential projects. They handle wet works as part of a renovation package, including kitchen and bathroom areas. Their design and build model is suitable for those who want a cohesive look.
- What’s good
- Design and build under one roof.
- Residential project experience.
- What to watch
- Confirm the current website, address or scope with confidence.
- Ask directly whether waterproofing is done in house or subcontracted.
Who it suits
This suits owners who want a design led renovation that includes kitchen wet works. If you are looking for a purely functional waterproofing job without design input, consider a trade only contractor.
Price
Quoted per project.
Details
Name: Sky Creation
Website: skycreation.net
8. Absolook Interior Design
Absolook Interior Design works on residential flats and private homes in Singapore. Kitchen and bathroom wet works are inside their renovation scope. They handle multiple trades under one contract, which simplifies coordination for the homeowner.
- What’s good
- Residential renovation focus.
- Handles multiple trades under one contract.
- What to watch
- Verify current ownership, address or website first.
- Get the membrane product and water test commitment written into the quote.
Who it suits
This is for homeowners bundling a kitchen makeover with other rooms in one project. If you need a specialist for a complex structural leak, look for a building services firm.
Price
Quoted per project.
Details
Name: Absolook Interior Design
Website: absolook.com
9. Mr Painter
Mr Painter is a painting and surface coating contractor serving homes. They are useful for repainting, and for coating ceilings or exposed pipes. However, wet area floor waterproofing usually sits outside a painter’s standard scope, as membranes and paints serve different functions.
- What’s good
- Painting and coating is the core trade.
- Home visits for site assessment.
- What to watch
- Painting and waterproofing membranes are different trades, so ask whether they lay a membrane and run a ponding test.
- A stain blocking coat hides a mark, it does not fix a leak.
Who it suits
This is for owners who need kitchen walls and ceilings repainted after wet works, or a coating over a stained ceiling. If you have an active leak, you need a waterproofing contractor, not a painter.
Price
Quoted per job.
Details
Name: Mr Painter
Website: mrpainter.com
10. Nippon Paint Singapore
Nippon Paint Singapore is a paint and coatings brand with a painting service arm in Singapore. Their coatings cover interior walls, ceilings and exteriors. Kitchen floor waterproofing membranes are normally applied by a renovation or waterproofing contractor, not a paint service.
- What’s good
- Technical data sheets available for the coating systems.
- Established brand with local support.
- What to watch
- Confirm whether they offer application services for the product you want, or product supply only.
- Not a replacement for a wet area membrane contractor.
Who it suits
This is for homeowners choosing wall and ceiling coatings for the kitchen area after the wet works are done. If you need the floor membrane applied, you must hire a wet works contractor.
Price
Quoted per job.
Details
Name: Nippon Paint Singapore
Website: nipponpaint.com.sg
How to Choose
| Criterion | Why it matters | What good looks like |
|---|---|---|
| Named membrane system | Kitchen floors take water from sink overflows, washing machine hoses and daily mopping. A cementitious coat behaves differently from a polyurethane or acrylic membrane, and not every product is rated for a wet area under tiles. | The quote names the product and manufacturer, and the contractor can show the technical data sheet before work starts. |
| Ponding test, with photos | The membrane disappears under the tile. A water test before tiling is the only practical chance to catch a pinhole or a poorly turned up edge. | Water ponded over the whole floor and left a full day or longer, checked from the unit below where access allows, with dated photos sent to you. |
| Who actually applies the membrane | Renovation firms often subcontract wet works. Responsibility gets murky when a leak shows up two years later. | You know the waterproofing subcontractor by name, that they are insured, and that the main contractor still carries the warranty. |
| Surface preparation and detailing | Leaks start at joints, pipe penetrations, floor traps and wall to floor corners, not in the middle of the floor. | Screed is dry and sound, corners and pipe collars get a fillet or reinforcing tape, and the membrane turns up the wall above skirting height. |
| Warranty wording | A workmanship warranty does not cover a failed pipe joint, and a product warranty does not cover bad installation. | Written terms stating the period, what is covered, what voids it, such as later hacking by another trade, and the response time for a site visit. |
| HDB and condo paperwork | Floor hacking in an HDB flat needs approval, and condo management usually wants a permit and deposit before works start. | The contractor applies for the renovation permit, keeps to permitted hours, and knows the water test expectation for wet areas. |
| Living through the works | Waterproofing means dust, a kitchen you cannot use for days, and a floor that cannot be walked on while it cures. | Zip barriers and floor protection, a schedule in writing, and an agreed cleaning pass before handover. |
If you are planning a larger renovation, you might also want to browse our guide on Home Renovation services for more context on managing trades and permits.
FAQ
How much does kitchen waterproofing cost in Singapore?
Expect to pay SGD 2,000 to SGD 5,000 for a standard HDB kitchen as part of a full renovation. Standalone waterproofing and tiling is rarely offered by design firms. Dedicated contractors may charge SGD 30 to SGD 80 per square metre. Always get a written quote that itemizes the membrane, labor, and ponding test fees.
Does HDB require waterproofing in the kitchen?
HDB does not explicitly mandate kitchen waterproofing for all flats, but it is standard practice. Hacking the floor breaks the original layer. Without replacement, water seeps into the slab and affects the unit below. HDB guidelines and condo MCSTs often require proper waterproofing for wet areas to prevent leaks.
Can you waterproof a kitchen floor without hacking the tiles?
You can apply surface sealants or epoxy over existing tiles to improve water resistance. This helps with minor leaks or stains. It does not fix structural leaks or pipe issues. If water seeps through grout into the slab, you must remove tiles, apply a proper membrane, and re tile. Surface coatings are temporary fixes.
What is a ponding test and how long should it take?
A ponding test involves pouring water over the waterproofed floor before tiling. Water is held for 24 to 48 hours. The unit below is checked for leakage. This is the only chance to inspect membrane integrity before tiles cover it. Insist on dated photos of the test and the result from the unit below.
My kitchen ceiling is leaking from the unit above. Who pays for the repair?
The owner of the unit causing the leak is usually responsible. If it is a common area or structural defect, the MCST or HDB may be liable. Document the leak with photos and videos. Contact your MCST or HDB estate office for an inspection. They will determine if the upper unit or sinking fund covers the repair.
