Window Inserts Auckland – Retrofit Double Glazing from $1,400
Upgrade to double glazing without full window replacement — retrofit aluminium window inserts installed into your existing frames.
Upgrade to double glazing without full window replacement — retrofit aluminium window inserts installed into your existing frames.
What Are Window Inserts?
Window inserts (also called retrofit inserts or retrofits) are new aluminium window units that fit directly into your existing frame opening. Instead of removing the entire window frame and surrounding wall linings, we fit a new aluminium window — often with double glazing — into the space left by your old window unit.
This is a significantly more affordable and less disruptive option than full window replacement, making it one of the most popular choices for Auckland homeowners looking to upgrade their joinery.
- Fits into your existing frame opening
- No disruption to surrounding wall linings or plaster
- Double glazing available on all inserts
- Available in all standard window styles
- From $1,400 per window (excl. GST)
- Ideal for older North Shore villas and bungalows
Window Inserts vs Full Replacement
More Affordable
Window inserts start from $1,400 vs $1,800+ for full replacements — often saving 20–30% on the total project cost.
Less Disruption
No removal of wall linings, plaster or sills — installation is cleaner, faster and less disruptive to your home.
Same Thermal Benefit
Double glazed inserts deliver almost identical thermal performance to full replacement windows.
Great for Older Homes
Ideal for North Shore villas and bungalows where maintaining original wall linings is important.
When to Go Full Replacement
If your existing frames are rotted, damaged, or poorly fitting, full replacement is the better long-term option.
Free Assessment
Not sure which option is right for you? We’ll assess your frames on a free site visit and give you honest advice.
Window Insert Pricing – Auckland
| Service | Starting Price (excl. GST) |
|---|---|
| Retrofit window insert (single glazed) | From $1,200 |
| Retrofit window insert (double glazed) | From $1,400 |
| Large window insert (double glazed) | From $1,900 |
| Full window replacement (if required) | From $1,800 |
All prices exclude GST. Contact us for a free site visit and accurate quote.
Window Inserts Auckland – FAQs
A window insert is a new window unit — often double glazed — that fits directly into your existing frame opening. The outer frame stays in place, and we install the new unit inside it. This is faster, cheaper, and less disruptive than full window replacement.
Window inserts in Auckland start from $1,200 for single glazed and $1,400 for double glazed, per window. View our full pricing guide →
For thermal performance, double glazed inserts are very similar to full replacements. The main difference is that full replacements allow you to change the window size or style, while inserts use the existing opening.
Window inserts work with most standard window types and sizes. We’ll assess your existing frames on a free site visit to confirm suitability.
Most window insert installations are completed in a single day. Multi-window projects typically take 1–2 days. Minimal disruption to your home — no wall linings or plaster involved.
Areas We Service on Auckland’s North Shore
We service all of Auckland’s North Shore. View our North Shore hub →
We also service selected Central and wider Auckland. View all areas →
Our Other Aluminium Joinery Services
Explore our full range of aluminium joinery services across Auckland.
Get a Free Window Inserts Quote
Contact our team for a free site visit and no-obligation quote on retrofit window inserts across Auckland.