Your contractor will say eight weeks.
Plan for twelve.
This isn't cynicism — it's just how Singapore renovation mathematics works once you factor in:
- public holidays
- material lead times
- the reality that your contractor has other clients
The phases of a renovation, in order
Understanding the sequence helps you understand where delays typically happen and why you can't rush certain stages.
Week 1–2: Hacking and demolition
This is the loudest, dustiest phase.
Old tiles get broken up, non-structural walls come down, original carpentry is removed.
For resale flats, there's often more to discover:
- old pipe routing
- outdated wiring
- unexpected structural surprises behind walls
Week 2–3: Plumbing and electrical rough-ins
Before any walls close up or new tiles go down, plumbing pipes and electrical conduit are laid.
This is a phase where IDs or contractors sometimes rush to meet their overall timeline.
Resist the urge to hurry this phase.
Once the walls close, access becomes very expensive.
Week 3–5: Masonry and tiling
Floor tiles, bathroom tiles, kitchen backsplash.
Tiling takes time because each layer needs to cure:
- the screed base
- the adhesive
- the grout
Rushing tiling is a common cause of:
- hollow tiles
- lippage (uneven edges between tiles)
that you'll notice every day.
Week 4–6: Carpentry fabrication and installation
Your carpentry isn't made on-site — it's fabricated in the workshop.
This typically takes 2–4 weeks from the point of final confirmation.
The most common delay in renovation timelines is homeowners who take too long to finalise carpentry specifications.
Make all carpentry decisions before hacking starts if at all possible.
Week 6–8: Painting, final electrical, and fixtures
Walls get painted, light points are fitted, switches and power points are installed, bathroom fixtures go in.
This phase feels like the finish line, but it's where snags accumulate:
- wrong colour delivered
- fixture that doesn't fit as expected
- light fittings on backorder
Week 8–10: Cleaning and handover
Contractor's final cleaning, your defect inspection, and defect rectification.
Never sign off on a renovation the same day as your walkthrough.
Document everything first, send the list formally, and give the contractor a reasonable deadline to fix before final payment.
What genuinely derails timelines
Public holidays
The period from mid-January to mid-February (CNY) effectively kills two to three weeks of production.
Workers return to their home countries, material deliveries stop, and factories close.
If your renovation starts in November, expect a CNY-shaped hole in your timeline.
Material lead times
“In stock” from a supplier means in their warehouse, which often means:
- Johor
- Guangzhou
Allow two to three weeks minimum for anything that needs to be ordered or custom-made.
Your own decisions
Every time you change a specification or ask:
“can we see another option?”
it adds days.
Decision fatigue is real — make a call and commit.
Concurrent projects
Your contractor is running multiple projects.
When two projects reach the same phase at the same time, workers get:
- split
- reshuffled
- reprioritised
The client who communicates more and visits more often typically gets more worker-hours.
Not fair, but true.
The single most useful thing you can ask
At the start of your renovation, ask your contractor:
“What are the three things most likely to delay us, and what do we do to prevent each one?”
A good contractor will give you a real answer.
A great contractor will already have built those answers into how they've planned the works.
Either way, you now have information to act on instead of reacting to surprises.
The bottom line
A standard 4-room renovation realistically takes 10–14 weeks from first day of hacking to full handover.
Plan your accommodation accordingly.
- Inform your landlord
- Manage your own expectations
- Build in a timeline buffer
The renovations that go smoothest are the ones where the homeowners didn't need it to be done by a specific date — because that pressure always flows downhill and always creates shortcuts.
