At Custom Windows, we supply builders and developers across Western Australia with high-quality aluminium windows and aluminium doors for modular builds. All products are delivered as complete knock-down (CKD) kits for fast and efficient on-site assembly.

Whether you’re working on a single unit or a large modular housing project, our flatpack kits are designed to make installation more efficient, convenient, and cost-effective. With over 40 years of manufacturing experience, we understand the demands of WA construction. Our wholesale model ensures you get reliable products at competitive trade rates.

Why Choose CKD Kits for Modular Builds?

CKD (complete knock-down) kits are supplied flat-packed, allowing delivery anywhere in WA with minimal transport risk and reduced costs. Each kit is made to order, packaged for easy handling, and supplied with all components needed for straightforward assembly.

Key benefits include:

  • Lower freight costs – flatpacks reduce cubic space and freight charges, ideal for regional deliveries.
  • Damage reduction – protective packaging helps safeguard frames and finishes during transport.
  • On-site flexibility – kits can be stored until required, making them ideal for modular projects with tight staging.
  • Easy installation – designed for trade-friendly assembly with standard tools.
  • WA-wide supply – delivered to metro Perth, regional towns, and remote FIFO sites.

[View Kitform Products PDF]

Supply Options: With or Without Glazing

We supply modular build window and door kits in two configurations to suit your project needs.

Kits Supplied Without Glass

  • Ideal for projects sourcing glazing locally or through preferred glaziers.
  • Lighter weight for easier handling and storage.
  • Popular for regional or remote deliveries where glass transport may be impractical.

Kits Supplied With Glass

  • Delivered complete with glazing installed.
  • Meets strict standards for energy efficiency, safety, and performance.
  • Available in single or double glazing for compliance with project specifications.

Whichever option you choose, all frames are precision-manufactured from premium aluminium for strength, durability, and low maintenance in WA conditions.

Designed for WA Conditions and Compliance

Every CKD kit is built for performance in Western Australia’s climate. Our Carinya windows and doors are:

  • Certified under WERS (Window Energy Rating Scheme) – measuring cooling and heating performance.
  • Compliant with AS2047 – ensuring they meet Australian standards for strength, weather resistance, and energy efficiency.

This means your modular builds stay cooler in summer and warmer in winter, helping reduce reliance on mechanical heating and cooling. The result is better comfort for occupants, lower energy bills, and easier compliance with building regulations.

WA-Wide Delivery

Our wholesale CKD kits are delivered across Perth and regional WA, with logistics tailored to builder requirements.

Delivery benefits include:

  • Flatpack freight to reduce transport costs.
  • Coordinated dispatch to match project schedules.
  • Protective wrapping against dust, moisture, and handling damage.
  • Trade-friendly labelling and assembly instructions.

We regularly supply CKD kits for modular housing projects such as granny flats in regional and mining locations, making us a trusted partner for builders across the state.

Partnering with Builders and Developers

We understand the pressure on modular construction projects:

  • Tight deadlines and staging schedules.
  • High freight costs for remote locations.
  • Compliance requirements for energy efficiency and performance.
  • Need for streamlined site installation.

Custom Windows solves these challenges by offering:

  • Competitive trade pricing.
  • Custom-made frames and glazing options.
  • Reliable lead times to keep builds on track.
  • Expert guidance on glazing, compliance, and configuration.
  • Local WA manufacturing backed by 40+ years of experience.

Looking for a Quote or Partnership?

If you’re a builder or developer seeking a reliable wholesale supplier of modular build windows and doors in WA, Custom Windows can help. Our CKD flatpack kits deliver efficiency, cost savings, and the quality your projects need to succeed.

Get a Quick Quote today on (08) 9279 7444, email sales@customscreens.com.au, or submit an online enquiry to discuss your next modular project.