Window Replacement in Wellington

Retrofit or Full Replacement: Which Option Suits Your Home?

Both pathways can improve comfort, but the right choice depends on your existing frames. Retrofit double glazing upgrades your current frames by replacing the glass unit, keeping disruption to a minimum. Full replacement removes the entire frame and joinery and suits homes where frames are damaged, poorly sealed, or failing to meet modern weathertightness standards. Wellington's coastal winds and wet winters mean poorly sealed windows can allow moisture ingress, leading to condensation, mould, and heat loss. Aluminium frames are a practical choice: they do not warp, do not require painting, and their dimensional stability makes future glass replacement straightforward. Visit the double-glazed windows and doors page for available glazing options.

How Much Does Window Replacement Cost in Wellington?

Costs vary depending on scope, size, and glazing specification. Retrofit double glazing typically ranges from around $450 to $800 per m², while full window replacement commonly sits around $800 to $1,600 per m². For a standard Wellington home, a full replacement project may range from several thousand dollars for a single window up to $20,000 or more for whole-house joinery. Complete Aluminium Maintenance Ltd offers free, no-obligation quotes to help you plan with confidence.

Our Window Replacement Process

Window Replacement in Wellington is straightforward with an experienced team. Here is how it typically works:

Do You Need Building Consent for Window Replacement in NZ?

Most like-for-like window replacement does not require building consent. Under Schedule 1 of the Building Act 2004, window replacement in existing dwellings of up to two storeys is generally exempt, provided the original installation met durability requirements and the replacement is in the same position. Consent may be required if the window has failed within 15 years or if opening sizes are being changed structurally. Always confirm specific requirements with your local council. The team at Complete Aluminium Maintenance Ltd can help guide you through what applies to your job.