Public Housing Window Replacement Guide: Application Process, Responsibility, Cost & Subsidy Explained (A Must-Read for Public Housing Residents)

Lived in public housing for years, and your iron windows are getting hard to open and close, with water seeping in around the window edges during typhoons? Many public housing residents face the same situation, but when it comes to window replacement, the first question is always: should the Housing Department fix it, or do I pay for it myself? Do I need to apply? This article breaks down the application process, submission procedures, cost factors and subsidy arrangements for public housing window replacement from a tradesman's perspective, so you won't have to figure it out blindly.

Common Public Housing Window Problems: Why Is Iron Window Oxidation So Widespread?

Many of Hong Kong's older public housing estates were built with iron windows. Hong Kong has a maritime climate with year-round high humidity and salty air. After years of wind and rain, the most common problem is iron window oxidation: the window frame surface blisters and peels, the joints between sash and frame deform, and opening and closing becomes increasingly difficult.

Besides iron window oxidation, other common issues include:

These problems will not fix themselves — the longer you wait, the greater the impact on the window structure, so early action is always the best policy.

Who Is Responsible for Public Housing Window Replacement? When to Call the Housing Department, and When to Pay Yourself?

Many residents assume the Housing Department handles all repairs in public housing, but there are actually two scenarios.

Within routine maintenance scope: if windows develop problems from normal wear (such as oxidised hinges or loosened handles), tenants can report them through the Housing Department's routine home maintenance service, usually followed up by the estate office.

Self-funded improvement works: if a resident wants to replace an entire set of iron windows with brand-new aluminium windows (rather than minor repairs), this counts as improvement works, must be funded by the resident, and prior approval must be obtained from the estate office — no alterations may be made without consent.

One more point: if the unit falls within a target building of the Mandatory Window Inspection Scheme (MWIS), the inspection forms and submission documents for public housing units go to the Independent Checking Unit (ICU), not directly to the Buildings Department — a key difference from private buildings, so check whether your contractor has experience handling public housing documentation.

Public Housing Window Replacement Application Process: 5 Steps

The whole process from application to completion generally takes about one to one and a half months, with aluminium window fabrication being the longest stage.

Public Housing Window Replacement Cost & How to Choose Styles

The cost of public housing window replacement depends mainly on: the number and size of windows, aluminium window style, glass type, and whether the location requires scaffolding or a gondola. For a deeper look at reading quotations and how each cost is calculated, see our complete aluminium window replacement cost guide.

For styles, common choices for public housing units are:

Notably, elderly residents should look into the Housing Department's relevant elderly subsidy arrangements — we have handled many window replacement cases under subsidy schemes, and the contractor can assist with the application documents. With regular maintenance — cleaning the waterproof rubber strips after rain and on clear days, and replacing sealant strips periodically — aluminium windows can last over 40 years, making them well worth it in the long run.

Real Case: Iron-to-Aluminium Window Replacement for an Elderly Resident at Tsui Lam Estate

An elderly resident at Tsui Lam Estate, Tseung Kwan O, had severely oxidised iron windows and applied for replacement under a subsidy scheme. Amgen replaced all windows with new aluminium frames, installed iron protective grilles in accordance with Housing Authority guidelines, and carried out external works on bamboo scaffolding, compliant with Class II Minor Works requirements. The windows now open smoothly, giving peace of mind through wind and rain. See the full public housing iron-to-aluminium window replacement project.

Frequently Asked Questions (FAQ)

Is approval always required for public housing window replacement?

Yes. Replacing windows in a public housing unit is alteration work, and approval must be obtained from the estate office before work begins. If alterations are made without approval, the Housing Department may require reinstatement — a costly mistake.

Who receives the minor works submission documents for public housing window replacement?

For public housing, HOS and Tenants Purchase Scheme units, minor works submission documents go to the Independent Checking Unit (ICU) under the Office of the Permanent Secretary for Housing, not the Buildings Department. An experienced registered contractor (such as Amgen, MWC 316/2021) will handle the full set of documents for residents.

How long do the works take? Will it be noisy?

Actual installation for a typical unit is completed within one to two days; including application and window fabrication, the overall timeline is about one to one and a half months. There will be noise and dust on removal day — the tradesmen will lay protective coverings beforehand and clear up on the same day the work finishes.

How long will the new aluminium windows last?

With regular maintenance, aluminium windows themselves can last over 40 years; Amgen's own-brand 304 stainless steel hinges are tested through 50,000 open-close cycles with a lifespan of over 30 years, saving considerable repair costs in the long run.

Conclusion: Ask First, Replace Right — Live Safely and Compliantly

Three things matter most in public housing window replacement: apply first, choose a licensed contractor, and follow the ICU submission procedures fully. Amgen Aluminium Windows holds a registered minor works contractor licence (MWC 316/2021) and knows the full public housing application and submission process inside out — from measurement and quotation to completion and inspection, all handled in one go. WhatsApp 6586 3435 or contact Amgen for a free quote and let our tradesmen advise you on the most reliable approach.

Amgen Window Engineering Team

Amgen Aluminium Windows Engineering Ltd

Licensed Contractor MWC 316/2021 | 20+ Years Industry Experience