Putting the Programme on the Quotation
Every guide written for homeowners tells them how long a renovation takes. Almost nothing written for contractors tells them how to put that on the document, which is why so many firms end up owning a delay they did not cause.
The clock starts at permit approval, not key collection
This is the single most useful sentence to have on a quotation. A client counts from the day they get the keys, because that is the day that matters to them. You cannot start until the permit is approved, and the gap between those two dates is not yours.
State the start as a trigger rather than a date: works commence on permit approval and confirmation of selections. Anything else and week one of your programme is spent on somebody else's decisions while the calendar runs against you.
Typical durations, and why they vary so much
Published Singapore guidance for 2026 puts the works themselves at roughly eight to twelve weeks for a BTO and ten to sixteen for a resale flat, with a lighter move-in package finishing nearer six to eight.
| Phase | BTO | Resale |
|---|---|---|
| Pre-renovation: design, permit, selections | 4 to 8 weeks | 4 to 8 weeks |
| Works on site | 8 to 12 weeks | 10 to 16 weeks |
| Cleaning and handover | 1 to 2 weeks | 1 to 2 weeks |
| A 3-room, lighter scope | nearer 7 to 8 weeks | - |
| A 5-room with heavy carpentry | up to 12 weeks | - |
Resale takes longer because more has to come out first
Hacking, rewiring, plumbing checks, waterproofing and making good are all far more common in a resale flat, and several of them are wet works that have to cure before anything else can happen on top.
That is worth explaining on the document rather than only in conversation. A client who has read a BTO timeline and is renovating a resale flat has a number in their head that is four to six weeks short of reality, and they got it from somebody else.
State what pauses the clock
Most overruns are not the contractor working slowly. They are decisions that arrived late and materials that arrived later, and neither is visible in a programme that gives only a total duration.
- —Selections not confirmed by a stated date
- —Material lead times outside your control, especially imported finishes
- —Variations, each of which should state its own effect in days
- —Access restrictions, permitted hours, and days the lift is unavailable
Tie the programme to the payment stages
The payment convention here already runs against trades rather than dates: ten per cent deposit, forty after hacking and masonry, forty on carpentry, ten on handover. A programme stated in the same terms lines up with it exactly.
That alignment is worth more than it looks. When both the schedule and the money key off the same observable milestones, there is no separate argument about whether a stage has been reached. The full reasoning is in the payment schedule guide.
Give a range, and say what it depends on
A single number is a promise you will be held to and cannot control. A range with stated dependencies is a professional estimate, and clients accept it readily when the dependencies are things they recognise.
Ten to fourteen weeks from permit approval, subject to selections confirmed by a date and material lead times, is both more honest and more defensible than twelve weeks stated flat.
Questions
Should the quotation give dates or durations?
Durations from a trigger. Dates assume a start you do not control, and they age the moment the permit takes a week longer than expected.
What if the client wants a firm completion date?
Give one conditional on the trigger and the dependencies, in writing. A firm date with no stated conditions is a liquidated-damages conversation waiting to happen, even on residential work where nobody uses that phrase.
Do variations need to state a time impact?
Yes, every time, including when the answer is none. A variation silent on the programme is a variation the client will assume changed nothing.
How long should I allow for the permit?
Long enough that your programme does not depend on the best case. It is outside your control, which is exactly why the clock should start when it is granted rather than when the keys are collected.
Writing the quotation rather than reading one?
CatchQuote builds it area by area, in the units this trade uses, and exports a branded PDF.