0% finance options for kiwi homeowners

0% finance for kiwi homeowners

Get your double-glazing with a 0% interest Green Loan

Get help upgrading to double-glazing with a 0% interest green loan

Is your home cold, draughty, and costing you a fortune in heating? Old, inefficient windows let warmth escape and make your home uncomfortable all year round.

Upgrading to energy-efficient double glazing makes all the difference – saving you money on your power bills and making your home more comfortable. 

And if you’re eligible for a green loan from one of NZ’s top banks, you can upgrade with 0% interest – no upfront cost, no hassle!

Am I eligible for a green loan?

Upgrading your home has never been easier. If you meet the following criteria, you’re likely eligible:

0% INTEREST GREEN LOANS

Compare the best green home loan options in NZ

Upgrading your home shouldn’t be a financial burden. Below is a comparison of the best interest-free and low-rate financing options from New Zealand’s leading banks–compare your options to find the best fit

Bank Interest rate Max loan Loan term Key conditions

Westpac

0% pa

$50,000

Up to 5 years

No establishment fee,
early repayment allowed

ANZ

1% pa

$80,000

Up to 3 years

Min $3,000 loan,
must be for energy efficiency
(not new builds)

1% pa

$80,000

Up to 3 years

Covers renewable energy,
heating, water tanks
& EVs

ASB

1% pa

$80,000

Up to 3 years

Requires 20%
home equity

Kiwibank

Variable

No limit

7-10 years

Borrow $5,000+
and Kiwibank contributes
up to $2,000 over 4 years

Not with these banks? You may need to consider switching your mortgage to access these offers.

How it works

Get your windows upgraded in 3 simple steps

Get a FREE quote

Talk to us for a tailored assessment

Apply with your bank

No hidden fees or upfront costs

Sit back and enjoy

A warmer, quieter and safer home with uPVC double glazing

Ready to upgrade your home with a 0% interest loan?

Call our experts today to get your project started

Lower North Island

Upper South Island

Upper South Island

Request a free quote call-back

Why homeowners trust NK Windows

Kurt Langer
Kurt Langer
The best thing I've done
"We upgraded our windows and doors with NK Windows and that’s definitely the best thing I've done to the house. Can't believe how warm, silent and secure feeling we have with these windows and doors installed!"
Roslyn Whitley
Roslyn Whitley
Fast and efficient
"The windows look absolutely amazing and have transformed and modernised my 1950's home. For anyone wanting a fast, efficient and professional service, I would recommend NK Windows as your go to company."

Frequently asked questions

To qualify, you typically need an existing mortgage with the bank, at least 20% home equity, and an eligible energy-efficient upgrade project.

Green loans are specifically for energy-efficient improvements such as double glazing, heating, insulation, water tanks, and solar panels. They cannot be used for general renovations.

Approval times vary by bank, but most applications are processed within a few days to a couple of weeks, depending on your bank and eligibility status.