A practical and great looking window solution. Pearl Window Systems bi-fold windows are popular for use in conservatories and orangeries and are also ideal for the commercial sector. During the summer months they can transform a café or restaurant helping to attract additional customers and give an establishment an outdoor, open feel, while also being secure and child-friendly.


• Standard four chamber frames.
• Sculptured (curved) styling.
• 28mm double glazed units.
• Add Georgian Bars and/or patterned glass.
• Wide choice of coloured and foiled frames.
• Wide choice of handles and hinge options.

Standard Colour Options

Rosewood both sides*
Golden Oak both sides*
Anthracite Grey both sides*
Cream foiled both sides*
White foiled both sides*
Ebony Black both sides*
Irish Oak both sides*
Smooth Cream through colour*


Bespoke Colour Options

Rosewood on White*
Golden Oak on White*
Anthracite Grey on White*
Cream foiled on White*
Chartwell Green on White*
Ebony Black on White*
Agate Grey
Silver Grey
Basalt Grey
Dark Green
Dark Red


Colours marked * are from our standard collection in featured profile, all other colours are subject to price and availability on application. Please note: colours are for illustration purposes, for an exact example please ask your sales representative for a Renolit swatch sample. Choose from a wide variety of colour options including: White, Rosewood, Cream, Light Oak, Chartwell Green, Grey and classic Ebony Black. Pearl Window Systems products are also offered in a wide choice of bespoke colours, please see Renolit foil book, (subject to availability and price on application only). Please note: Ebony Black both sides patios and bi-folds are subject to lead time.

Additional Information

  • 10 Years Profile Warranty
    • Available from an entry level “C” Rated to an “A+”
      Energy rating
    • Your Bi-Fold Plus benefits from being fitted with the
      most robust locking mechanisms on the market
    • Smooth easy action
    • Full colour range
    • Hook locking with shootbolts
    • Secured by Design option
    • Minimum size 600mm w x 1850mm h (sash opening sizes)
    • Maximum size 900mm w x 2150mm h (sash opening sizes)
    • Slim sight lines (less frame more glass)
    • 8mm sash coverage (best rating for air leakage)
    • Unique patented double action gasket (30% better compression)
    • Centralised Euro groove (improved strength and security)
    •  Square cut and scribed beading (ease of glazing)
    • Single J leg security beads (ease of glazing)
    • Anti static profile (easy to clean)
    • 32mm Channel packers factory fitted, resulting in huge efficiencies on site glazing, toe and healing packers fitted in position ensuring safe and quicker glazing
    • All frames are designed to be coupled in many configuration including patio configurations to casement windows
    • Multiple add on’s 10, 20 and 50mm allowing you the perfect choice for every installation
    • Our system has been designed with the future in mind, uniquely negating the need for the traditional steel reinforcing systems, the benefits being an industry leader in energy efficiencies together with a safer future for the environment, a lead free system with unique PVC inserts that have the same tensile strength of reinforcing


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