Established in 1978
Trusted by commercial clients across Scotland for over 45 years of manufacturing and installation expertise.
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Over 45 Years of Commercial Glazing Expertise Across Scotland
Century 21 are architectural glazing specialists working across commercial and residential sectors throughout Scotland. From curtain walling and shopfronts to high-performance windows and doors, our in-house team manages every stage – from specification and manufacture through to installation and aftercare.
Glazing manufactured in-house
Every system is fabricated to your exact specification - no third-party assembly, no compromise on quality.
Premium systems
We manufacture and supply only the very best systems and partner with some of the most respected names in the industry.
Scotland-wide coverage
From a single commercial door to a full curtain wall installation, we deliver across Scotland.
End-to-End Commercial Glazing Solutions
From large housing developments to commercial fit-outs, our team has the experience and capacity to deliver. We supply and install architectural glazing systems for contractors, architects and local authorities across Scotland – on time and to specification.
View our latest projects
See The Results for Yourself
Whether you are a developer, contractor, architect or business owner, we deliver a full range of commercial aluminium and ali clad glazing – windows, doors, shop fronts, entrance screens and curtain walling. Every project is bespoke, every installation is carried out by our own directly employed team.
Our Process
Step 1
Enquiry
Get in touch with our friendly team and share the details of your project, we're happy to answer any questions and guide you through the next steps.
Step 2
Consultation & Technical Support
During our consultation, we offer technical support and work with the project architect to advise on the best systems for your project.
Step 3
Showroom Visit
Visit our showroom to see our range of products up close, and enjoy a one-to-one consultation to help find the perfect solution for your home or project.
Step 4
Quote
We'll provide a full, detailed quote tailored to your requirements, including survey and installation costs where needed, so there are no surprises.
Step 5
Installation & Aftercare
Our experienced, in-house fitting team will carry out your installation to the highest standard, with ongoing aftercare and advice available whenever you need it.
Visit Our Showroom and See the Systems in Person
Speak to our team, view live product displays and get expert advice tailored to your commercial project.
Frequently Asked Questions
Below we have answered some of the most common queries we receive from homeowners, architects and contractors. If you can't find what you are looking for, get in touch with our team directly.
While we primarily work with aluminium systems, we are also able to offer ali clad products, as well as uPVC and timber upon request. To find out if we are able to offer the material of your choice, please speak to our team.
Yes. Century 21 fabricates every system in-house and our own installation teams carry out all site work - ensuring consistent quality and accountability throughout.
We primarily specify systems from Metal Technology - these systems are extensively tested and suited to the full range of commercial applications.
Absolutely. We regularly collaborate with architects, developers and principal contractors, providing detailed specifications, drawings and programme-compliant delivery.
Our commercial range includes aluminium windows, entrance doors, shop fronts, entrance screens and curtain walling - all manufactured bespoke to your project requirements.
Yes. Century 21 serves commercial clients throughout Scotland, from project enquiry and survey through to manufacture and completed installation on site.
What Our Customers Say
We are rated 5.0 onThank you for our fantastic new front door and back patio doors. The finished quality is brilliant and quick time...
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Craig Noble
via Google
Century 21 fitted two new windows and an entire new porch & front door for us recently and we are...
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Amy Rebecca Kettles
via Google
We are so so happy with our Bifold doors! The quality is first class and the support from the company...
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Chloe Semple
via Google
Thank you for our fantastic new front door and back patio doors. The finished quality is brilliant and quick time both were fitted was amazing.
Craig Noble
via Google
Century 21 fitted two new windows and an entire new porch & front door for us recently and we are delighted with the results! Ross provided a fantastic consultation and gave us direction on what would look best and complement our Edwardian property. They did a fantastic job and were really lovely guys to have around, would recommend to anyone looking for amazing service and great craftsmanship!
Amy Rebecca Kettles
via Google
We are so so happy with our Bifold doors! The quality is first class and the support from the company themselves we couldn’t have asked for more! Ross was more than willing to take the time to discuss our options from different colours to the different set up. When it came to installation the boys were friendly and I could really tell the pride they took i fitting the doors perfectly! Would fully recommend!
Chloe Semple
via Google