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Number One at Windows
Whether you're after standard non-thermal options or thermally broken frames for superior insulation, we offer a full range of window styles — including awning, casement, sliding, bi-fold, and fixed windows — all double-glazed for maximum energy efficiency, noise reduction, and year-round comfort. Every window is custom-measured, precision-installed, and built to handle Canterbury’s diverse climate, with sleek modern finishes and low-maintenance durability.
Number One at Doors
From the reliable Omega 300 Series to the high-performance, thermally broken 800 Series, our doors are built for style, durability, and insulation. Choose from hinged, French, sliding, stacking, or bi-fold configurations — all double-glazed to enhance energy efficiency, reduce noise, and provide year-round comfort. Every door is custom-made to suit your space and lifestyle, with sleek profiles, smooth operation, and finishes that complement your home. Whether you're building new or upgrading tired joinery, we handle the full process — from consultation to installation.
Number One at Conservatories
Whether you're adding to an existing property or building new, a conservatory offers the perfect, temperature-controlled space between indoors and out — ideal for dining, relaxing, working, or simply soaking up the sun. Our conservatories are built with high-performance double glazing and modern aluminium joinery for year-round comfort, thermal efficiency, and lasting durability. More than just an extra room, a well-designed conservatory floods your home with natural light, boosts property value, and creates a warm, versatile space you’ll use every day. Custom-designed to suit your home and lifestyle, we manage the process from concept to completion — delivering light, space, and comfort.
Number One at Replacements
At Number One Windows and Doors, we’re your local window replacement specialists, trusted by homeowners across Christchurch and Canterbury. We remove outdated, inefficient joinery and replace it with high-performance, double-glazed aluminium windows built to suit your home and climate. Whether it’s a like-for-like retrofit or a full replacement using Omega’s 300 or 800 Series systems, we ensure a smooth process from consultation to install — with minimal disruption and maximum thermal comfort. Backed by trusted suppliers and expert workmanship, we make replacing your windows a smart, long-lasting investment in your home.
800 Series
We proudly supply and install the full Omega 800 Series – a premium, thermally broken aluminium joinery system designed for superior performance in Canterbury’s varied climate. Ideal for both residential and architectural builds, the 800 Series offers enhanced energy efficiency, strength, and design flexibility, making it perfect for modern homes that demand comfort and durability.
300 Series
we offer the trusted and versatile Omega 300 Series – a reliable aluminium joinery system ideal for residential homes and renovations throughout Christchurch and Canterbury. Designed as a non-thermally broken suite, the 300 Series delivers excellent durability, clean modern lines, and seamless functionality at an affordable price point.
We supply a wide range of aluminium joinery including awning, casement, sliding windows, as well as hinged, sliding, bi-fold, and French doors — all designed for durability and style.
Installation times vary depending on the size and complexity of the project, but most residential installs are completed within 1 to 3 days with minimal disruption.
Yes! We offer double glazing and thermal joinery options that improve insulation, reduce heat loss, and help lower your energy bills.
Absolutely. Whether you’re building a new home or upgrading your existing windows and doors, we tailor solutions to meet your specific needs.
Yes, we are proudly locally owned and operated in Christchurch, committed to serving the Canterbury community with quality craftsmanship.
Aluminium joinery is low maintenance. Regular cleaning with mild detergent and lubrication of moving parts ensures long-lasting performance.
Yes, we offer free, no-obligation quotes so you can make an informed decision.
Yes, our team is familiar with Christchurch building codes and ensures all installations meet local regulations.
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