HDB kitchen renovation: the order of works, timeline and what drives cost
A kitchen renovation coordinates approvals, first-fix services, wet work, cabinets, a templated countertop and final connections. Here is a practical sequence.
An HDB kitchen renovation coordinates approvals, demolition, plumbing, electrical work, substrates, finishes, cabinets, countertop fabrication and appliance connections. Several tasks can overlap, but concealed services and measurements must be resolved before later finishes close them in. Here is the practical sequence behind a HDB kitchen renovation.
The order of works
- 1. Survey, approvals and protection — freeze the layout, appliance specifications and work schedule; confirm the HDB submission before regulated work.
- 2. Approved removal — isolate services, then remove only the cabinets, countertop, fittings and finishes included in the approved scope.
- 3. Plumbing and electrical first-fix — set sink, drainage and appliance routes and have required points and circuits designed by an EMA-licensed electrical worker.
- 4. Substrate, screed and tiling — repair the base and complete the HDB-compliant kitchen floor or wall system specified for the scope.
- 5. Cabinet installation — fit and level the base and wall cabinets after the surrounding substrate and finishes are ready.
- 6. Countertop template and fabrication — take final measurements from the installed base cabinets, then fabricate and install the top.
- 7. Second-fix and testing — install the sink, tap, hob, hood and other appliances, complete connections and test the services.
- 8. Touch-ups and clean — complete sealant and paint repairs, protect the finished work and arrange a post-renovation clean.
A realistic timeline
SparkFlow's current guide ranges as at 31 July 2026 are below. The written programme should define whether the duration starts after permit approval, on site possession or at demolition, and whether off-site fabrication is already under way.
| Scope level | Guide price | Planning duration |
|---|---|---|
| Basic refresh | $8,000–$15,000 | 2–3 weeks |
| Mid-spec renovation | $15,000–$25,000 | 3–4 weeks |
| Premium scope | $25,000–$40,000 | 3–5 weeks |
Approvals, drying time, cabinet fabrication, countertop templating, long-lead appliances, hidden substrate conditions and variations can extend the guide. Confirm appliance dimensions and ventilation needs early, but do not schedule delivery so early that finished units sit unprotected on a dusty site. For a whole-flat project, our HDB resale renovation timeline shows how the kitchen slots into the wider schedule.
What drives the cost
Cabinet quantity, countertop material, removal and substrate work, service changes and appliances all matter. If the sink or hob shifts, that can affect the plumbing and electrical first-fix, so freeze the approved layout before those routes close.
| Cost driver | Why it moves the budget |
|---|---|
| Cabinetry | Measured run, height and depth, carcass and door finishes, hardware and internal organisers. |
| Countertop | Material, thickness, edge, cut-outs, backsplash, transport and site access; measure it separately from cabinetry. |
| Layout changes | Moving the sink, hob or major appliances can add plumbing, electrical, ventilation and making-good work. |
| Removal, substrate and finishes | Hacking versus retention, floor preparation, screed, tile size, wall area, trims and disposal change labour and material. |
| Appliances | Owner-supplied or contractor-supplied model, required circuits, ventilation, cut-outs, connections and installation responsibility. |
HDB rules to keep in mind
Do not treat every kitchen job as the same "wet-area" package. HDB's ceiling-leak guidance says there is generally no waterproofing membrane beneath kitchen floor tiles and warns against washing the kitchen floor. That differs from a bathroom membrane. Where HDB conditions require waterproof cement screed or another approved kitchen detail, the work schedule should name that exact system instead of promising a generic membrane.
A contractor listed in HDB's Directory of Renovation Contractors should determine whether demolition, floor or layout work requires a permit and submit it under HDB's renovation-permit process. Electrical installation work has a separate licensing requirement; use EMA's licensed electrical worker guidance to verify who will design, supervise, test or certify the affected scope. For overall budgeting, see our BTO renovation cost guide.
The takeaway
Freeze the approved layout before first-fix, install and level base cabinets before templating the countertop, and write supply, connection, testing and making-good responsibility into the quote. Use the kitchen detail HDB requires rather than assuming a bathroom-style membrane. Send us the floor plan, appliance list and proposed changes and our renovation team can scope the works and timeline for you.
Frequently asked questions
- How long does an HDB kitchen renovation take?
- SparkFlow's current planning ranges as at 31 July 2026 are about 2–3 weeks for a basic refresh, 3–4 weeks for a mid-spec renovation and 3–5 weeks for a premium scope. Approvals, fabrication, countertop templating, site conditions and changes can extend them.
- What is the correct order of works for a kitchen reno?
- Confirm approvals and protect the site; complete approved removal; run plumbing and electrical first-fix; repair the substrate and complete required screed or tiling; install base cabinets; template, fabricate and install the countertop; then connect fittings and appliances, test, touch up and clean.
- How much does an HDB kitchen renovation cost?
- SparkFlow's published ranges as at 31 July 2026 are $8,000–$15,000 for basic, $15,000–$25,000 for mid-spec and $25,000–$40,000 for premium work. Cabinet quantity and finish, countertop material, removal, tiling and service relocations determine the final quote.
- Do I need a permit to hack my HDB kitchen?
- Some demolition, floor and layout work requires HDB approval, while other work is governed by HDB conditions or notices. A contractor listed in HDB's Directory of Renovation Contractors should check and submit the exact scope. Do not begin regulated work until the required approval is issued.
- Why does plumbing and electrical work have to happen before tiling?
- The final sink, appliance and outlet layout determines service routes and penetrations. Complete and test concealed first-fix work before closing the surfaces so later changes do not require avoidable hacking. Electrical work must be handled by an EMA-licensed electrical worker where required.