Aluminium Glazing Supply Built Around The Trade
Century 21 has supplied builders, contractors, architects and developers with precision-fabricated aluminium windows, doors and glazing systems for over 45 years. Working from our factory in Hamilton, we manufacture to your specification using industry-leading systems from Smart, Cortizo and Finstral – giving your projects the performance and finish they demand.
Visit our Showroom and See the Quality in Person
Touch the products, explore the finishes and talk to our team before you commit to anything. We’re here to help you make the right decision for your home.
10 Bairds Crescent, Allanshaw Ind Est, Hamilton, ML3 9FD
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View our gallery
Our gallery is the ideal place to browse product photos and find the perfect fit for your next project. If you have any questions, please don’t hesitate to get in touch.
A Fabrication Partner With Nearly 50 Years of Experience
Century 21 has been at the heart of the trade since 1978. What started as a domestic-focused manufacturer evolved into a trusted name for commercial contractors and large-scale developers alike – built on three core principles: quality, reliability and service.
That long track record means trade clients get more than a supplier. You get a fabricator that understands project pressures, tight programmes and the need for glazing that performs straight out of the box – with no costly callbacks.
Aluminium Glazing You Can Rely On
Your clients expect the best, and the systems we fabricate from reflect that. We work with Smart aluminium — one of the UK’s most widely specified system houses – alongside Cortizo, a globally recognised aluminium brand known for its slim sightlines and high thermal performance.
For projects requiring a premium European specification, we also fabricate from Finstral, the respected Italian glazing brand. Whether the brief calls for contemporary flush casements, large-format sliding doors or slimline bifolds, we have the system to match – fabricated in-house to your exact requirements.
What Our Customers Say
We are rated 5.0 onDependable, responsive, quality workmanship and dedication to getting the project completed. Their customer service is second to none. I would...
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Thankerton Builders
via Trustpilot
Ross and the team that carried out our work were fantastic from start to finish. Great communication and fantastic workmanship.
Corrie Deans
via Trustpilot
Great job, and professional company to deal with
Gary Bradburn
via Trustpilot
Very professional Very knowledgeable, delivered on time and fitted perfectly. Will certainly use them again
BSL
via Trustpilot
Great company to use, carried out work for us with no issues at all
DCF Joiners
via Trustpilot
Efficient, competitive and very professional
Paul
via Trustpilot
Dependable, responsive, quality workmanship and dedication to getting the project completed. Their customer service is second to none. I would highly recommend Century 21.
Thankerton Builders
via Trustpilot
Ross and the team that carried out our work were fantastic from start to finish.Great communication and fantastic workmanship.
Corrie Deans
via Trustpilot
Great job, and professional company to deal with
Gary Bradburn
via Trustpilot
Very professional Very knowledgeable, delivered on time and fitted perfectly. Will certainly use them again
BSL
via Trustpilot
Great company to use, carried out work for us with no issues at all
DCF Joiners
via Trustpilot
Efficient, competitive and very professional
Paul
via Trustpilot
