Over the past forty years, Smart has grown to become the UK’s leading supplier of aluminium glazing systems and bespoke aluminium extrusions, building a reputation both for the quality of our products and for our product innovation, design and technical expertise.


As one of the worlds leading aluminium building systems, TECHNAL imagines with no limits to maximise people’s comfort. We offer high-end design and innovative solutions, developed with a sustainable approach. Our profiles are recycled and recyclable. Based on 60 years of expertise, TECHNAL provides solutions for windows, doors.
TECHNAL is a premium brand available worldwide, but known under different names in some countries:  SAPA & DOMAL in Italy.


We are proud suppliers of premium, British-made aluminium window and door systems that have been transforming commercial and living spaces for more than 50 years.

Built to last and leave a lasting impression, every solution in our extensive range strikes the perfect balance between durability and design.


Optima is a fully-integrated, 70mm system for windows and doors. It is available in sculptured and chamfered variations.

The system meets all requirements for thermal efficiency as standard. A wealth of intelligent design features plus double and triple glazing options mean thermal efficiency can be enhanced to meet your project’s specified standards, up to and including 0.8 W/m²K or A++.

Optima also offers market-leading structural strength and security. When correctly specified, Optima windows and doors are PAS24 approved as standard. Secured by Design requirements can also be met where required.

The system comes with the widest range of ancillaries in the industry so you can create perfect projects every time.

RAL Colour Chart

Click to view our wide range of colours available for the above options.


A thermally efficient range of aluminium doors and aluminium panels are ideally suited to the residential, commercial & social housing markets. This collection of front doors and panels are manufactured to provide high performance solutions for today’s specification demands.​


An extensive range of composite doors that are widely admired for their stunning design and unparalleled security. No other composite door even comes close to Solidor in terms of sophistication and performance.

Steel Doors & Windows