Renovating a home in Singapore is rarely as straightforward as the mood boards suggest. Most guides repeat the same checklist of permits and paint swatches, but the details that genuinely catch homeowners off guard are the ones nobody thinks to mention until it’s too late. Drawing on what interior design professionals see behind the scenes, here are nine insights that go beyond the basics, along with practical guidance on what to do if a project runs into trouble and after all the work is done.
1. Check for defects before your ID firm starts work — don’t assume they will
It is not uncommon for renovation work to begin before a homeowner has gone through their defects inspection, often because the designer simply presumed this step had already been completed. The trouble is that once renovation works are under way, developers, HDB included, will typically stop entertaining defect claims since there is no reliable way to establish whether a fault originated from the developer’s original build or from work carried out by your designer’s team.
The homeowner is usually the one left footing the repair bill, and disputes over who caused what can quickly strain the relationship with your design firm. While it has become more common for designers and contractors to ask about this upfront, don’t leave it to chance and make sure to get your defects inspection done and documented before anyone picks up a tool.
2. Too many rendering requests can get you fired as a client
Homeowners sometimes assume that 3D renderings and drawings can be produced with a click of a mouse. This is certainly possible now with generative AI being sufficiently advanced for the job, but their quality can be inconsistent and may not always get every detail right.
Renderings that are done the old-fashioned way don’t suffer from such issues, but they do take several hours of work as a result. Designers in high demand are particularly unwilling to tolerate indecisive clients who request dozens of revisions, and it would not be unusual for such a designer to walk away from the project altogether. This is not a universal rule across every firm, but it is worth bearing in mind that the more sought-after the designer, the less patience they will typically have for repeated, open-ended requests.
3. Confirm your designer won’t be swapped out mid-project
A frequent complaint amongst homeowners is being told that their original designer is leaving (sometimes as early as the first week) and another will take over in their stead. In more extreme cases, homeowners have reported being handed between three or four different designers over the course of a single project.
Every switch means re-explaining your intentions from scratch, and there is a real risk of delays if the handover between designers is not managed properly. You may also end up working with a less experienced replacement who cannot execute the project to the same standard you originally signed up for. It is worth raising this before agreeing to work with a firm, and securing in writing the right to leave without penalty should your designer be switched.
4. High forfeiture fees can lock you into a bad deal
Forfeiture fees are non-refundable sums payable if you cancel a renovation project partway through. They are intended to compensate the firm for materials already ordered or contractors already paid. A firm with lower overall costs but high forfeiture fees is not necessarily a poor choice, provided everything proceeds as planned.
However, it does mean you will face steep costs if you later want to switch designers, and unscrupulous firms may exploit this by raising costs well beyond your original budget, knowing you are effectively locked in. At the same time, be cautious of firms that boast of having no forfeiture fees whatsoever, as this can be a sign of a less established or transient operation.
5. Talk to the subcontractors — they’ll often be more honest than your designer
Electricians, carpenters, plumbers and other subcontractors working under your designer or general contractor often have a clearer view of how the project is actually progressing than the homeowner does. Because of this, it is worth speaking with them directly as they may offer a more candid condo renovation cost or timeline estimate than a designer whose priority is keeping you satisfied.
Subcontractors who complain about not being paid on time or a high turnover of workers on site are red flags worth taking seriously as well since they indicate a cash-strapped firm struggling to keep its team paid. Poor communication between the firm and its subcontractors can also lead to costly mistakes, such as usable items being discarded by accident or the wrong finishes being installed, and even when the homeowner is not directly billed for the error, it can still delay the entire renovation.
6. Think twice before taking your designer’s in-house renovation loan
Some interior design firms offer what they describe as an “in-house” credit facility, though this financing typically comes not from the design company itself but from a licensed moneylender they work with. Interest rates on these loans can be considerably higher than those offered by banks, and the terms may include unusual conditions such as hidden rollover fees on top of the stated interest rate. It is worth speaking to a financial professional you trust before committing to such an arrangement, rather than relying solely on your designer’s recommendation.
7. Not all walls are equal — get your contractor to check before hacking
Partition walls and load-bearing walls can look identical to the untrained eye, yet hacking a structural element without the proper approval can trigger reinstatement costs that far exceed whatever was saved by skipping the check.
A reliable contractor should verify the original building plans before any hacking begins and confirming in writing which walls can be safely altered. This is a step many first-time homeowners never think to ask about, largely because the difference between a structural and non-structural wall is not something you can determine by eye.
8. A fair deposit is 10–30%, not 50%
Industry norms in Singapore place a reasonable initial deposit at around 10 to 30 per cent of the total contract value, with the remainder released in stages as milestones are completed and inspected.
A contractor requesting 50 per cent or more upfront, often under the guise of “securing materials”, is shifting a disproportionate amount of risk onto you. If the bulk of the payment changes hands before any real work has been done, you are left with very little leverage should something go wrong later in the project.
9. Condos have a mandatory lunchtime quiet hour most owners don’t know about
Most condominium developments observe a quiet period between 12 PM and 2 PM during which hacking, drilling and other noisy works are prohibited, in addition to the standard weekday working hours.
This detail catches many condo owners off guard, particularly when they assume they are working well within approved timings. It is also common practice in Singapore for homeowners to offer immediate neighbours a small goodwill gesture, such as snacks or drink vouchers, ahead of noisy works. This is not compulsory, but it meaningfully reduces the likelihood of formal complaints being lodged with the MCST.
What To Do If The Renovation Goes Wrong
If a project starts to go sideways, whether through unresponsive contact, stalled works, or unexplained cost increases, the first step is to stop making further payments until the situation is resolved. Document everything: contracts, receipts, photographs of work completed, and all correspondence with your designer or contractor. This record becomes essential if you need to escalate matters formally, whether through the Consumers Association of Singapore (CASE), HDB, or your condominium’s MCST.
This is also where choosing an accredited firm pays off. CaseTrust-accredited interior design firms are required to protect deposits through a performance bond and to use standardised contracts, offering a genuine layer of financial protection should the firm be unable to complete the project. This connects directly back to several of the points raised earlier: the forfeiture fees discussed in tip four, the in-house loans in tip six, and the deposit structure in tip eight are all ultimately about how much of your money is at risk, and how easily you could recover it if a firm were to fail to deliver.
What Happens After the Renovation Is Complete?
Receiving the keys marks the end of construction, but not necessarily the end of the renovation process. A careful post-handover inspection and proper documentation can help ensure any outstanding issues are resolved promptly while warranty coverage is still in effect.
- Carry out a comprehensive defects inspection
Before considering the project complete, inspect every room carefully. Test cabinet doors and drawers, run all plumbing fixtures, switch on every light and power socket, examine paintwork and flooring, and verify that built-in carpentry has been installed according to the agreed specifications. Any defects should be photographed and documented in writing so there is a clear record for rectification.
- Understand your warranty and defects liability period
Many renovation contracts include a defects liability period during which workmanship-related issues should be rectified by the contractor. Homeowners should familiarise themselves with the reporting process and avoid delaying notification if defects become apparent.
For new HDB Build-To-Order (BTO) flats, homeowners should also distinguish between the developer’s Defects Liability Period and the renovation contractor’s workmanship warranty. HDB advises owners to inspect and report developer-related defects before commencing renovation works, with a one-year Defects Liability Period beginning from key collection and a critical 30-day window to report initial defects before renovation starts.
- Keep all project documents organised
Retain copies of the signed contract, approved drawings, material specifications, warranties, invoices and records of any variation orders. These documents provide an important reference should repairs, warranty claims or future renovation works be required.
- Maintain your new finishes properly
Even the highest-quality finishes require regular maintenance to remain in good condition. Follow the manufacturer’s care instructions for surfaces such as quartz, engineered stone, natural timber and laminates, and avoid using harsh cleaning chemicals that could prematurely damage the materials.
- Schedule a final review after moving in
Some issues only become noticeable after several weeks of everyday use. Soft-close hinges may require adjustment, silicone sealants may need touch-ups, or minor settling cracks may appear. Conducting a final review while the workmanship warranty remains active allows homeowners to address these concerns before the coverage period expires.
Renovating Smarter, Not Harder
None of these insights are meant to make renovation sound more daunting than it needs to be. Most projects in Singapore proceed without major incident, and the vast majority of interior design firms and contractors operate honestly and competently.
What separates a smooth renovation from a stressful one is usually preparation: knowing which questions to ask, which figures are reasonable, and which red flags warrant a second look before signing anything. If you would like to discuss your renovation plans with a team that values transparency at every stage, feel free to get in touch with us to find out more.
Frequently Asked Questions
1. How long does a typical HDB or condo renovation take in Singapore?
Most full renovations take between eight and twelve weeks, though this can extend depending on the scope of works, approval timelines, and any structural changes involved.
2. Do I need to hire a CaseTrust-accredited firm?
It is not a legal requirement, but CaseTrust accreditation offers deposit protection and standardised contracts, which meaningfully reduces your financial exposure should the firm run into difficulties.
3. Can I switch interior designers partway through a project?
This depends on your contract terms, particularly any forfeiture fees. It is worth clarifying this, and ideally securing it in writing, before signing on with a firm.
4. What is the difference between a structural and a partition wall?
Structural walls bear the weight of the building and cannot be altered without approval, whereas partition walls are non-load-bearing and generally more flexible to modify. The two can look identical, so always ask your contractor to verify against the original building plans.
5. How much should I set aside as a contingency budget?
A contingency of around 10 to 15 per cent on top of your quoted renovation cost is a reasonable buffer for unforeseen works, particularly once hacking or plumbing changes are involved.
6. What should I do if my contractor asks for a large upfront deposit?
Treat this as a warning sign. A fair deposit in Singapore typically sits between 10 and 30 per cent, with the remainder tied to completed milestones. Requests for 50 per cent or more upfront warrant caution.
