Case study

Two-colour uPVC windows for Christchurch Home Transformation

The Renovation Decision That Changed Everything

When Serena started thinking seriously about renovating her modern brick home in Christchurch, she was at a crossroads: move and buy something newer, or invest properly in the home she already had. Renovation won, and replacing the single-glazed windows was at the very top of the list. What followed was a full upgrade to uPVC joinery from NK Windows, transforming not only the warmth and quietness of the house, but its appearance and overall feel too.

Location:

Christchurch

Style:

Single-storey brick-clad home

Installation:

Full replacement

Product:

Series 4000 windows & doors

Date:

2025

The challenge

Making an Existing Home Worth Staying In

Once Serena decided to renovate, she wanted the improvements to make a genuine difference rather than simply refresh the surface. The original single-glazed windows had to go. At the time, uPVC windows were still relatively unfamiliar to Serena, which made understanding the different options an important part of the decision.

Warm, comfortable, secure and stylish double-glazing — with white frames on the inside and black on the outside — has added value and personality to this Christchurch home.

The solution

A Local Team and a Different Kind of Window

Serena was keen to find out more about uPVC and was drawn to NK Windows because they were local, knowledgeable and able to clearly explain the benefits of the system. A visit to the NK Windows showroom helped make the decision easier.

Among the aspects of NK Windows that appealed to Serena were:

  • Clean designs that would enhance her modern home and simple aesthetic
  • Double glazing for noise reduction and thermal performance
  • Low-maintenance uPVC frames, ideal for long-term durability
  • The ability to have different colour finishes on the inside and outside of the home
  • Locally made products backed by a highly experienced Christchurch team

Serena was able to see the products first-hand, talk through the different options and ask questions before committing. She found the whole process straightforward from beginning to end, and that same experience continued through installation. Serena was comfortable leaving the installation team to get on with the work, knowing she would be kept informed throughout.

Gallery

The result

Warmer, Quieter, Safer — and a Completely Different Look

The impact of the new windows was immediate.

For Serena, the improvement wasn’t limited to one thing. The house became quieter and warmer, felt more secure, and gained a much sharper, more contemporary appearance.

One of her favourite design features is the ability to have a different frame colour inside and outside, allowing the joinery to work with both the exterior of the brick house and the interior décor.

That flexibility helped make the new windows feel like an integral part of the renovation rather than simply a replacement for what had been there before.

Warm, comfortable, secure and stylish double-glazing — with white frames on the inside and black on the outside — has added value and personality to this Christchurch home.

Love the quietness, warmth, safety and the look!

The benefits

The Best Decision in the Renovation

Looking back, Serena has no hesitation about which part of the project made the biggest difference.
  • A warmer and more comfortable home
  • Noticeably reduced outside noise
  • Greater security and peace of mind
  • A sharper, more contemporary appearance
  • Different frame colours inside and outside
  • Low-maintenance, durable uPVC joinery
  • Helpful advice from an experienced local team
  • A straightforward installation process
Easily the best thing I did in the renovation. It changed the look and feel of the place.

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