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internorm sliding doors

Aluminium-clad Internorm sliding doors

Internorm’s range of aluminium-clad timber lift-and-slide and sliding doors create a seamless connection between your home and outside spaces, further enhanced by a natural woodgrain interior finish.

The Internorm HS330 Lift & Slide Door

The Internorm HS 330 Lift-and-Slide Door is a premium quality timber-aluminium lift-sliding door designed to deliver consistently high levels of performance.

This includes outstanding thermal performance with u-values of as low as 0.65W/m2K – a beyond Passive House level of energy efficiency.

Combined with effortless operation, exceptional weather sealing, robust aluminium exterior and welcoming natural woodgrain finish internally, the Internorm HS330 Lift-and-Slide Door a project and home-defining option.

The Internorm KS430 Lift & Slide Door

The Internorm KS430 Lift-and-Slide Door is an ultra-energy efficient and low maintenance aluminium clad uPVC lift-and-slide door, which combines the structural integrity of aluminium externally, with the low-maintenance and thermal qualities of PVC-U internally.

This includes outstanding thermal performance with u-values of as low as 0.64W/m2K, pushing sliding door energy efficiency beyond Passive House requirements.

Effortless operation, exceptional weather sealing and a robust aluminium exterior meet the finish and colour flexibility of uPVC making the Internorm KS430 Lift-and-Slide Door and ideal choice for your home.


Internorm sliding doors by Cherwell Windows are supplied with Internorm’s range of contemporary handles. Understated, stylish and with a discreet square-edge, they’re the perfect finishing touch to your project.

Extensive colour choice

Internorm aluminium-clad doors are available in an extensive choice of standard colours including subtle creams, heritage greys and greens and black, plus any RAL colour on special order.

Planning your next home improvement or self-build project?

Get in touch with the team today on 01295 270938

Get up close and personal (with our products!)

Visit our window and door design centre

Windows and doors are a big purchase, so making time to get it right is important. We think there’s no replacement for seeing windows and doors ‘in the flesh’, opening and closing them and picking out the fine detailing that brings the all-important finishing touches to your project.  

With showrooms in Banbury and Beaconsfield, we bring our product ranges closer to you.   

Our Window and Door Design Centre, is located 15 miles north of Oxford in Banbury and carries our complete product range.