Most HDB homeowners know they must maintain their windows. Far fewer understand the specific legal requirements that apply to window repairs and replacements in Singapore. The Building and Construction Authority enforces rules that carry real penalties. Ignoring them is an offence.
The Retrofitting Order: Why Aluminium Rivets Must Go
Since 2004, BCA’s Retrofitting Order requires all homeowners to replace aluminium rivets in casement windows with stainless steel ones. Aluminium corrodes over time, especially in Singapore’s humid climate. When the rivets holding the friction stay fail, the window can detach and fall. Stainless steel grade 304 or equivalent resists corrosion far better and holds the window arm securely. This is a legal requirement. Homeowners who fail to retrofit face fines of up to S$5,000, a jail term of up to six months, or both. The order applies to all residential units except landed properties and ground-floor units.
Who Is Allowed to Touch Your Windows
HDB window regulations mandate that only BCA-approved window contractors listed with HDB may carry out window works. This applies to new window installations, replacements, and retrofitting. The engagement remains a private arrangement between you and the contractor. HDB does not set pricing, schedules, or resolve quality disputes. You can verify a contractor’s registration through the HDB InfoWEB or by calling the HDB Service Line. Engaging an unlicensed contractor violates the regulations and puts your safety at risk. The contractor must also have a trained window installer certified by BCA to carry out the work.
The Penalties for Falling Windows
If a window falls from your flat due to lack of maintenance, the consequences are severe. Homeowners can face a fine of up to S$20,000, imprisonment for up to 12 months, or both. If the fallen HDB window causes injury or property damage, additional charges under the Penal Code for rash or negligent acts may apply. These penalties exist because a falling window in a high-rise city is a public safety matter. Singapore has seen cases where falling windows injured pedestrians and damaged vehicles, and the courts take these incidents seriously.
What Counts as Window Works
Window works include replacing the entire window unit, retrofitting existing windows with new rivets or friction stays, and replacing cracked glass panels. Minor tasks like tightening loose screws or lubricating hinges do not require a contractor. But any work that involves the structural components of the window, the friction stay, the rivets, or the glass panel falls under the regulations. When in doubt, engage a professional. The cost of a professional inspection is far lower than the cost of a fine or an injury.
The Renovation Permit Requirement
All window replacement work requires a renovation permit from HDB. A BCA-approved window contractor applies for this permit on your behalf. The contractor must also submit a Window Installation Form to BCA within 14 days after the work is complete. Keep a copy of this form for your records. It proves the work was done legally and by a certified professional. When you sell your flat, this documentation may be requested, and missing paperwork can delay the transaction.
Why This Matters for Resale and Safety
When you sell your HDB flat, the buyer’s lawyer may request proof that window retrofitting was done properly. Missing documentation can delay the sale or raise questions about compliance. Beyond legal paperwork, the safety of your household and your neighbours depends on windows that are correctly installed and maintained. A window that looks fine can still have corroded rivets hidden from view. A small mirror helps inspect the top and underside of the window panel where the rivets sit. Look for rust, corrosion, or any sign that the rivet has started to pull away from the aluminium.
How To Check Your Own Windows
BCA and HDB recommend checking windows at least once every six months. The designated Window Safety Days fall on 6 June and 12 December each year. Look for rust on rivets and screws, bent or loose friction stays, deteriorated corner brackets, and cracked or loose glass panels. If any of these problems appear, engage a BCA-approved contractor. Do not attempt to replace rivets or friction stays yourself. These components carry the full weight of the window and a mistake can be fatal.
Window regulations exist because the stakes are high. A single loose rivet can send a window crashing to the ground. FixFirst works within every BCA and HDB requirement, using stainless steel grade 304 rivets and components that meet the latest safety standards. We handle the retrofitting and the inspection. Get your windows checked by a team that knows the law and follows it. Talk to us today over Whatsapp.
