What We Offer

Number One in Design and Inspiration, leaders in thermal excellence

Number One Windows And Doors manufacture and install industry leading aluminium windows, doors and conservatories, which are the pinnacle of quality and performance, with comprehensive installation services executed to the highest standards, ensuring adherence to and consistent surpassing of all current building codes and best practices, for an exceptional client experience.
Glasshouse project
01
Windows

Windows

Christchurch’s trusted aluminium joinery specialists
Windows and red Door
02
Doors

Doors

High-Quality Windows and Doors for Canterbury Homes
Glass Windows
03
Conservatories

Conservatories

Modern, Energy-Efficient Aluminium Joinery Solutions
Glasshouse project
01
Windows
01

Windows

Windows and red Door
02
Doors
02

Doors

Glass Windows
03
Conservatories
03

Conservatories

Who We Are

Trusted Joinery Experts for Christchurch and Canterbury

At Number One Windows and Doors, our team brings over 40 years of combined experience in designing, installing, and delivering high-quality aluminium joinery across Christchurch and Canterbury. We’ve built trusted relationships with leading suppliers to ensure every project is backed by reliable products, expert advice, and skilled installation. From custom conservatories to full home upgrades, we focus on comfort, value, and results that last.

Our Team Brings The Following Experience:

6,500
+
Windows installed
35M
+
Project value
100
%
Locally owned
43
+
Years' of experience

Our Mission

To provide Canterbury homeowners with premium aluminium windows and doors that combine durability, energy efficiency, and exceptional craftsmanship — all backed by friendly, local service.

Our Vision

To be Canterbury’s most trusted aluminium joinery company, leading the way in quality, sustainability, and customer satisfaction.

Our Values

Trust is at the heart of everything we do at Number One Windows and Doors. From the first site visit to the final installation, our clients know they can count on honest advice, clear communication, and exceptional workmanship.

The way we work

Conservatory
Step / 1

Free Consultation & Quote

Get in touch with our friendly team to discuss your project. We’ll assess your needs, offer expert advice, and provide a free, no-obligation quote tailored to the scope of your project.
Meeting
Step / 2

Custom Design & Product Selection

Choose from our wide range of aluminium windows and doors, including options for style, glazing, and finishes. We’ll help you select the best products to suit your lifestyle and your budget.
Meeting
Step / 3

Professional Measurement & Planning

Our experienced installers visit your property to take precise measurements and plan the installation, ensuring a perfect fit and smooth process.
writing
Step / 4

Expert Installation

Our skilled team installs your new windows and doors with care and precision, maintaining high standards for quality, weather-tightness, and durability.
Handshake
Step / 5

Final Inspection & Customer Satisfaction

Once installation is complete, we conduct a thorough quality check and walk you through the finished product. We ensure you’re fully satisfied and provide guidance on maintenance and warranty.
Planning
Windows for Architectural properties
Pasadena Project windows and doors
Glasshouse project
Windows for Architectural properties

Trusted by Canterbury, Loved by All

Our clients’ success stories reflect our commitment to excellence. See how we’ve helped them find their dream homes, sustainable investments, and perfect getaways.
Nathan Harper
Sophia’s attention to detail and market expertise made finding my vacation property a smooth and enjoyable experience.
Jacob Reed
Olivia’s professionalism and deep understanding of luxury properties gave me confidence throughout the process.
Amelia Cooper
Sophia’s passion for sustainable housing helped me find a beautiful and eco-friendly home that I absolutely love.
Harper Gray
Charlotte’s dedication and efficiency turned my dream of owning a luxury villa into reality. Her service was flawless.
Henry Ellis
Emma’s dedication and seamless service made renting my property hassle-free. Her expertise is second to none.
Grace Powell
Emily provided expert guidance and clarity throughout my property investment journey. I couldn’t recommend her enough.
Logan Price
Emily guided me through every step of investing in green real estate. Her knowledge and patience were outstanding.
Aria Sullivan
Isabella’s attention to detail and friendly approach made renting my property a simple and enjoyable experience.
Oliver Scott
Liam helped me secure an excellent deal on a luxury home. His professionalism and negotiation skills were remarkable.
Lily Ross
Emma’s expertise in sustainable housing exceeded my expectations. She found me the perfect green home for my family.
William Parker
Noah’s commitment to finding the perfect property for my business was exceptional. His market insights are unparalleled.
Anthony Walker
Benjamin ensured my luxury property investment was a seamless and stress-free process. His expertise was invaluable.
Scarlett Mitchell
Olivia’s professionalism and insight helped me navigate the short-term rental market with ease and confidence.
Samuel Brooks
Charlotte’s architectural insights and design advice made choosing my dream home an inspiring journey.
Sebastian Turner
Ethan’s creativity and expertise in short-term rentals gave me the confidence to invest in my first vacation property.
Aurora James
Emily made buying my luxury home effortless. Her warm and professional demeanor was exactly what I needed.
Alexander Hayes
James’s understanding of market trends and client needs made my property purchase a truly rewarding experience.
Victoria Lane
Charlotte’s market knowledge and investment strategies were key to my success in purchasing a sustainable property.