Retrofit double glazing special - get up to $2,500 CASH BACK or FREE glass upgrade
Retrofit double glazing special - get up to $2,500 CASH BACK or FREE glass upgrade
Winter promo out now. Limited time only. Upgrade your home this winter with retrofit double glazing. Promo code: WINTER2026
Winter retrofit double glazing special -
up to $2,500 CASH BACK or a FREE glass upgrade.
Upgrade your home this winter with comfort, warmth, and serious savings.
For a limited time, take advantage of our winter Retrofit double glazing promotion and choose one of the following offers when you proceed with retrofit double glazing:
✅ Option 1: Up to $2,500 CASH BACK
✅ Option 2: A FREE high perfromance glass upgrade
PLUS…
✅ 12 months interest free
✅ Paid directly to us
✅ No finance company involved
✅ No credit checks required
Our retrofit double glazing solution improves warmth, reduces condensation and noise, enhances energy efficiency and reduces power bills all without replacing your existing window frame. This promotion is designed to make upgrading your windows easier, faster, and more affordable this winter.
Retrofit Winter Promotion Full Terms and Conditions
Promotion period & eligibility
This promotion runs from 1 April 2026 to 31 August 2026.
To qualify, customers must accept their retrofit double glazing quote within the promotional period.
A minimum spend of $5,000 applies.
This offer is available to residential (consumer) customers only and excludes trade and commercial customers.
Promotion offer:
The promotion is defined as: Get up to $2,500 cashback OR a free glass upgrade, plus 12 months interest free directly with Metro Glass.
Customers may choose one option either the cash back or free glass upgrade (they cannot be combined):
Cashback option - Tiered spend structure
Cashback is calculated based on the total value of the accepted retrofit quote.
Cashback is applied as a discount to the quote, not paid separately.
Tiered cashback levels:
Spend $5,000 – Save $750
Spend $10,000 – Save $1,500
Spend $15,000 – Save $2,250
Spend $20,000 – Save $3,000
For over $20,000 discounts will be assessed on a case by case basis.
Free Glass upgrade option
As an alternative to cashback, customers may choose a free glass upgrade:
Pay for Plus Low E Double Glazing and receive Max Low E, or
Pay for Max Low E Double Glazing and receive Xcel Low E
Only one upgrade option may be selected per job.
12 Months interest free direct with Metro Glass
This offer is available only for residential customers purchasing retrofit double glazing from Retrofit Double Glazing by Metro Glass.
The interest free offer applies to quotes accepted during the promotional period (1 April – 31 August 2026).
Payment terms
Payments are made directly to Metro Glass over 12 months.
No finance companies are involved, and no credit checks are required.
Payments are split into four equal instalments of 25%, paid quarterly.
A 25% deposit is required at the time the quote is accepted.
Payment methods
Payments can be made by:
Internet bank transfer
Credit card over the phone
Credit card or EFTPOS payment at a Metro Glass branch
Late or missed payments
If a scheduled payment is missed, the remaining balance may become payable immediately.
Metro Glass reserves the right to withdraw the interest free terms if payments are repeatedly missed.
Exclusions and limitations
This promotion cannot be used in conjunction with any other offers or promotions, including:
Additional discounts
Other financing offers (including Q Card interest‑free offers)
The promotion excludes the following products:
Xtreme Low‑E Double Glazing
SunX Grey Low‑E Double Glazing
SunX Reflect Low‑E Double Glazing
Promo Code
Customers must quote the promotional code WINTER2026 to receive this offer.
Existing quotes and accepted jobs
If a retrofit quote has already been accepted without this promotion applied, the promotion cannot be applied retrospectively or reversed.
If a quote has been issued but not yet accepted, or is currently in progress, customers should contact their local Retrofit Consultant and quote WINTER2026. The promotion can be applied provided the quote is accepted within the promotional period.
Who is this retrofit double glazing offer suitable for?
This offer is ideal for homeowners, landlords or anyone who:
Have existing aluminium or window joinery
Want a cost effective double glazing upgrade
Are looking to improve warmth and comfort
Prefer a buy now pay later interest free payment options
Want to avoid traditional finance cards
Why our customers choose us
Specialists in retrofit double glazing
Designed specifically for NZ homes and climates
Proven energy efficiency benefits
Professional installation backed by over 37 years of experience
Transparent pricing and flexible payment options
We make upgrading your home simple from quote to installation.
Feel free to check out our customer testimonials
MARCH ONLY! ✔ FREE Glass upgrade + 5% Off ✔12 Months interest free on us! No finance companies. No credit checks. Find out more HERE or 👉 Click here to get your free quote and claim your offer. Use code: MARCH26. Terms apply.