SingRank Singapore
You found the resale unit. Good bones, terrible kitchen, and a bathroom that has clearly been overlaid at least once already. Then the quotes come back tens of thousands apart, which tells you nothing except that somebody is wrong.
Here is the thing almost nobody tells you first: a resale condo renovation package in Singapore is shaped by your MCST's by-laws before it is shaped by your budget. The management corporation decides what you may hack, which days you may work, how much you must place on deposit, and how long approval takes. Read those rules before you compare a single price, and most of that gap explains itself.
What a resale condo renovation package actually covers
A resale condo renovation package is a bundled scope — hacking, waterproofing, electrical rewiring, plumbing upgrades and finishes — priced as one project rather than as separate trades. Resale units need the deeper version of that scope because the building services behind the walls are as old as the block.
What it costs depends on unit size, unit condition and how much of the wet-area and electrical scope is genuinely needed. Those variables are large enough that a published number would mislead more often than it helps, which is why we quote after a site visit rather than before.
Why resale costs more than a new condo
New condos arrive with working services and factory finishes, so the work is personalisation. Resale units need the services replaced before anything decorative happens.
That difference is not margin. It is rewiring, it is a fresh waterproofing membrane, and it is the plumbing you cannot see. On an older unit it is frequently the majority of the real cost, and it is the part owners have not budgeted for.
Read your MCST by-laws before you read any quote
This is the judgment call we would make for you if you let us: do not sign a resale condo quote until the MCST renovation by-laws are in your hand. Not the condo's marketing brochure. The actual renovation guidelines the management office issues.
They set the working hours, the permitted scope, the deposit, and the approval lead time. A quote priced against the wrong assumption on any of those four is a quote that will change later.
Do I need MCST approval for my condo renovation?
Yes. Condominium renovations in Singapore require Management Corporation Strata Title approval before work starts. Submissions generally need renovation floor plans, contractor licence verification, a work schedule and insurance certificates, and developments commonly allow one to two weeks to process them.
That fortnight is not dead time if you plan for it. It is dead time if you discovered it after you booked your movers.
The renovation hours that quietly reshape your timeline
Most developments limit renovation work to weekdays, roughly 9:00am to 5:00pm. Saturdays are frequently not permitted, and Sundays and public holidays are typically prohibited outright. Some condos allow Saturday work until 1:00pm — you have to check yours, because there is no single national rule for private estates.
Run the arithmetic. An HDB flat can absorb a six-day working week. A condo on a strict weekday-only by-law loses a day and a half every single week, and a ten-week job becomes something closer to thirteen.
The four line items that decide whether a quote is honest
Most resale condo quotes differ on scope, not on price. These four lines are where the difference hides:
- Waterproofing membrane — stated as a system with a number of layers, or absent entirely.
- Electrical rewiring — full circuit replacement, or "additional points" bolted onto ageing wiring.
- Plumbing replacement versus reconnection to existing pipework.
- Hacking and disposal, including the MCST's own debris and lift-protection requirements.
Ask every contractor you are comparing to price those four explicitly. You are not being difficult. You are making the quotes comparable for the first time.
The cheapest quote is not always the dishonest one
A quote that lands far below the others is not automatically a scam, and it is worth understanding why before you dismiss it. Legitimately lower quotes usually mean overlay instead of hacking, retained appliances, standard rather than imported finishes, or a smaller wet-area scope.
It stops being legitimate at one specific point: when a lower price is achieved by leaving a line out of the written scope rather than out of the work. Scope removed from paper but still needed on site comes back as a variation order, at a price you no longer have leverage to negotiate.
So the check is simple. Compare written scopes, line for line, before you compare totals.
Overlay or hacking for a resale condo bathroom?
Overlay tiles over the existing surface and costs meaningfully less than full hacking, because it removes demolition, debris disposal and screed curing from the job. Hacking strips back to the screed so a new waterproofing membrane can be laid. For a genuinely resale unit, our position is that hacking usually wins despite the higher price.
The reason is that the membrane, not the tile, is the asset you are buying. Overlay works when the existing tiles are sound, there is no waterproofing issue, and the bathroom has not already been overlaid once. Miss that third condition and you are stacking a second layer on a membrane nobody has inspected in fifteen years.
Honestly — if your unit is under five years old and the bathroom is dry, ignore this section and overlay. The advice above is for the ageing stock, which is most of what "resale" means.
The same decision, with the exact numbers attached, is set out for HDB flats in our 5-room hacking versus overlay breakdown — the four conditions are identical, only the regulator changes.
What an inter-floor leak costs you in a condo
In a strata development the unit below yours is somebody else's property, and a wet-area failure becomes a dispute rather than a repair. That is the concrete stake behind the membrane argument: not a nicer bathroom, but not paying for a neighbour's ceiling.
We have written up how responsibility for inter-floor leaks is actually decided and what a waterproofing quote should contain before you sign it.
Structural work needs more than MCST sign-off
Certain modifications require Building and Construction Authority involvement, not just your management corporation's blessing. Wall removal or alteration, plumbing relocation, major electrical upgrades and wet-area modifications all sit in that category.
Two approvals, two timelines, and they do not run in parallel by default. Plan them as a sequence. The fuller version of that regulatory chain, as it applies to landed property, is in our landed renovation approvals guide.
Why bundling rooms into one contract is cheaper
Combining kitchen and bathrooms into one project costs less than running them separately, and the saving is mechanical rather than promotional: bulk material ordering, one labour schedule, a single permit application, and one project management overhead instead of two.
It also removes a scheduling conflict. Wet works and floor levels interact across rooms, so doing them under one contract avoids the handover gaps where defects fall between trades.
How long does a resale condo renovation take?
A complete condo makeover typically runs a matter of months rather than weeks, with kitchen-only and bathroom-only projects considerably shorter. Add the MCST approval window before any of it starts.
Then apply your building's working-days rule. A weekday-only by-law is the single biggest variable between a quoted timeline and a real one, and it is the reason two identical scopes in two different developments finish weeks apart.
The deposit nobody budgets for
Most MCSTs require a renovation deposit held against damage to common property — lifts, corridors, lobby flooring. It is refundable, and it is separate from anything your contractor charges. Budget it as cash you cannot spend for the duration of the project, because that is exactly what it is.
What we would not recommend paying extra for
There is no meaningful "condo premium" on kitchen carpentry. A carcass and a set of hinges do not know what kind of building they are in, and if a quote loads a surcharge onto carpentry purely because the address is a condominium, ask what specifically differs.
Where condo specialism genuinely costs something is compliance handling: the MCST submission, the insurance certificates, the lift protection, the scheduling around restricted hours. That is the part worth paying for. Our breakdown of carpentry cost per foot run shows what the material and labour actually come to.
Verify any contractor yourself, without taking our word for it
We are HDB Licensed and BCA Registered, and we hold BizSafe Level 3. You should not take that on trust from a page we wrote. The HDB Directory of Renovation Contractors is public and searchable at services2.hdb.gov.sg, and BCA registration is verifiable independently.
Run that check on us and on every other contractor you are considering. We have written a step-by-step guide to verifying BCA registration precisely so you can do it without calling anyone.
Where the rules live, in writing
Condo renovation sits under a different rulebook from HDB work, and the differences are worth reading once rather than discovering mid-project. Our guide to Singapore renovation laws for HDB and condo sets them side by side, and our condo kitchen renovation guide goes deeper on the MCST-specific constraints for wet areas.
Noise, neighbours and the complaint you can avoid
Strata living compresses everything. In a condominium, the people affected by your renovation share your lift lobby, and a complaint reaches the management office the same day. Working inside the permitted hours is the whole defence. Our guide on how renovation noise complaints are handled covers what happens when it goes wrong.
Painting: the cheapest lever in a resale unit
If the layout works and the wet areas are sound, paint carries more visual change per dollar than anything else in a resale condo. It is also the one trade where condo rules on access, hours and lift protection bite hardest. See our condo painting prices and rules for 2026.
Electrical rewiring: the line most quotes fudge
A resale condo's wiring is as old as the block, and the difference between "additional points" and full circuit replacement is thousands of dollars that never shows up in a photograph.
Additional points tap new outlets off existing circuits. Full rewiring replaces the runs. On a unit built before modern appliance loads — induction hobs, instant heaters, air conditioning across every room — the existing circuits were never designed for what you are about to plug into them. Ask which one you are being quoted, in writing, per room.
Flooring in a resale condo: what actually drives the price
Flooring cost in a resale unit is decided by the substrate underneath, not by the material you choose in the showroom. A level, sound screed accepts an overlay. A dipped or previously-patched one telegraphs every flaw through whatever you lay on top.
This is the same substrate logic that governs HDB work, and the symptoms are identical — our write-up on why tiles pop and lift explains what is happening below the surface and when it forces a full strip.
Can I stay in my condo during the renovation?
It depends entirely on scope. Bedroom-only or single-room work usually allows you to stay. A complete makeover takes the kitchen and every bathroom offline at once, which makes the unit uninhabitable for the duration.
Budget for temporary accommodation as a real line, because it appears on no contractor's quotation and it runs the length of the project. This is the cost that turns a well-planned budget into a stressful one.
How condo work differs from HDB work
If you have renovated an HDB flat before, most of your instincts transfer and two do not. HDB work runs on HDB permits and the licensed contractor directory; condo work runs on your MCST's by-laws and, for structural change, BCA. And HDB's permitted hours are national and published, while your condo's hours are set by your management corporation and vary building to building.
Our Singapore home renovation guide for HDB and condo sets the two side by side, and our condo renovation overview covers the service scope in detail.
If you are moving between property types
Buyers moving from a condo into HDB, or the reverse, frequently carry across the wrong cost assumptions — and the wrong contractor requirements, since HDB work needs a contractor on the HDB directory. Our guides on downgrading from condo to HDB and the HDB versus condo buying comparison cover both directions.
Worked example: what actually moves the number
Take a 3-bedroom resale unit with two bathrooms and an original kitchen. Three decisions account for most of the spread between the highest and lowest quote you will receive: whether the bathrooms are hacked or overlaid, whether the electrical run is fully replaced, and whether the finishes are standard or imported.
Not the tiles you pick on a Sunday afternoon. Settle those three first and the rest of the budget stops moving.
What to bring to your first site visit
Bring the MCST renovation by-laws, the unit's floor plan, and a written list of what must be replaced versus what you would like replaced. That last distinction is the one that keeps a resale project inside its budget, and almost nobody arrives with it.
Talk to us about your unit
Every resale condo is a different age, a different building, and a different set of by-laws. Send us the unit and the MCST guidelines and we will tell you what the scope actually needs to be, and what it will cost — after a site assessment, not from a table on a web page.
WhatsApp or call +65 8784 8742, or email rcs@renovationcontractorsingapore.com. Site visits and quotations are free, and the quotation itemises the four lines from earlier in this article so you can compare it against anyone else's.
You can also browse the full condo renovation service page, or read how a completed project looks in our Punggol Watertown condo packages write-up.
Frequently asked questions
How much does it cost to renovate a resale condo in Singapore?
Cost depends on unit size, unit condition and how much of the wet-area and electrical scope genuinely needs replacing. Because those variables move the total so much, we quote after a site assessment rather than publishing a figure that would misrepresent your unit. Send us the details and we will assess it.
Do I need MCST approval to renovate my condo?
Yes. Condominium renovations require Management Corporation Strata Title approval before work begins. Submissions generally require floor plans, contractor licence verification, a work schedule and insurance certificates, and developments commonly allow one to two weeks to process them.
Can I renovate my condo on a Saturday?
It depends on your development. Most condominiums restrict work to weekdays between roughly 9:00am and 5:00pm, with Saturdays frequently not permitted and Sundays and public holidays prohibited. Some allow Saturday work until 1:00pm. Check your own MCST by-laws.
Is overlay or hacking better for a resale condo bathroom?
Overlay costs less and suits bathrooms with sound tiles, no waterproofing issues, and no previous overlay. Hacking allows a new waterproofing membrane and is generally the safer choice for older resale units where the existing membrane is unknown.
Why does renovating a resale condo cost more than a new one?
Because a resale unit needs its services replaced before any decorative work happens: rewiring, a fresh waterproofing membrane, and plumbing replacement. A new condo arrives with working services, so the work there is personalisation rather than renewal.
What is the renovation deposit for?
Most management corporations hold a refundable deposit against damage to common property such as lifts, corridors and lobby flooring during your works. It is separate from anything your contractor charges, and the amount is set by your development.
Disclaimer
This article is general information for prospective clients and is not legal or financial advice. It does not contain a quotation; Renovation Contractor Singapore prices resale condominium work after a site assessment, because cost depends on unit condition, scope and material selection. MCST by-laws, renovation deposits and permitted working hours vary by development and are set by each management corporation, not by any national standard — verify yours with your management office. Regulatory references to HDB and BCA reflect published requirements at the time of writing and may be revised; confirm current requirements with the relevant authority.
