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Drone view of 5-panel bifolds for period country home


SDL Akzent Plus – Superb thermal performance

Our best-selling wintergarden system creates elegant light-filled glass rooms with superb thermal performance.

Thermally Broken Thermally broken
Heating, ventilation & control systems Icon Heating, ventilation & control systems
Large Spanning System Unlimited span system
Security Icon Security to British and European standards
Mulitple Canopy Options Icon Multiple canopy options
Mulitple Opening Options Icon Flexible opening options
Climate Control Icon Climate control glazing
Guarantee Icon 10 year guarantee


Akzent’s large format roof sections and minimal profiles produce airy spaces with a sense of uninterrupted calm. Rafters and eaves are steel-reinforced for strength, allowing a wide variety of heights and sizes, and therefore real design flexibility.

This system can be combined with thermally efficient bifolding or sliding doors which offer versatile opening and threshold options. High quality rooflights with automated controls will provide perfect levels of ventilation.


Key Features

  • Thermally broken glass structure
  • Slim aluminium rafters
  • High U-values
  • Steel-reinforced construction
  • Large roof sections


Aluminium wintergarden with bifolding doors and rooflights in Chiswick
WINTERGARDEN EXTENSION FOR TERRACED HOUSE: Single storey kitchen extension with wintergarden to the outdoors.
WINTERGARDEN FOR PERIOD VILLAGE HOME: Bespoke glass structure and window transform home
Bifolding doors link home to garden
ELEGANT WINTERGARDEN LINKS AYLESBURY HOME TO GARDEN: Spacious glass roofed extension for garden views all year.
RAL colour image book - choose your frame colour


All our glass structures and extensions are finished in three classic and timeless colours as standard, Anthracite Grey, White or Black. A dual colour option allows for a different colour for the inside frame. You can also specify frames in bespoke colours for a unique look, powder-coated in a huge range of RAL colours to match a building’s design. All finishes are covered by our 10 year product guarantee.



Datasheets for the SL22O aluminium sliding doors


All our architectural glass systems have the ODC 10 Year Warranty. Our products undergo constant rigorous testing and come with certification from renowned national and international test institutes for sound insulation, permeability, burglar protection and extreme weather conditions.

ODC SDL Akzent+ Datasheet

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SDL Avantgarde im Foyer
SDL AVANT GARDE Avant Garde is a beautiful thermally efficient wintergarden featuring natural wood internal finishes and optimal aluminium weather protection
SDL ATRIUM Atrium glass house system offers maximum light levels and elegant minimal canopy
SDL ACUBIS Offers all year aluminium weather protection and can be stand alone or connected
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