Project managed
we take care of everything
Manufacturing in Scotland
for over 50 years
The LorimerFit™ standard
all our tradespeople are fully qualified and expertly trained
10year guarantee icon
Lorimer 10-year triple guarantee
complete with emergency call-out service
Living room with large bay window. White casement windows with royal oak sills and surrounds. Cream sofa and cushions.

Perfect form and
beautiful styling.

Closely based on the design of an original timber window, the casement can be designed to complement most styles of houses. From single panes to multiple openings, the sheer flexibility of this window means it can feature almost any permutation of fixed and opening windows.

For a really unique finish, each window can be designed with equal sightlines, to give a symmetrical appearance both inside and out. Our casement windows feature a multi-point locking system, as well as locking handles.

Why choose a Lorimer casement window?

  • Unique Lorimer slimline frame, with clear-line glazing to let in more light.
  • Extremely flexible design that can be styled with opening and fixed window panes.
  • Fitted with easy clean hinges so every window can be safely cleaned from inside.
  • Optional egress hinges can be fitted upstairs to provide a fire escape.
  • Multi-point locking system with shoot bolts, anti-jemmy cleats and a locking handle, achieving PAS 24 ‘Enhanced Security’ accreditation.
  • Fully reinforced as standard, for optimum strength and thermal performance.
  • Energy ‘A’ rated for improved thermal efficiency.

Designed for you.

With ‘Designed for You’, we offer a truly customisable service, allowing you to create an interior finish that is just right for you and your home.

Your tailored finishes

Internal timber sills & surrounds.

All Lorimer windows are finished internally with your choice of stunning timber sills and surrounds which are varnished, waxed or painted by our professional decorators.

Window colours.

It’s important to choose the right colour of window, both inside and outside, to complement the aesthetics and period of your home.

Corner colour swatch of american light oak uPVC
American Light Oak
Anthracite grey
Corner colour swatch of white uPVC
Corner colour swatch of rosewood uPVC
Corner colour swatch of american light oak uPVC
American Light Oak
Corner colour swatch of white uPVC
Corner colour swatch of rosewood uPVC

Decorative finishes.

With our own in-house design team, we can truly personalise your windows to suit your individual taste, with features such as stained glass, diamond and square lead, brilliant-cut and sandblasted glass and ornate astragals.


Stained glass

Add colour and style to your new windows and doors with bespoke stained glass.

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Sandblasted glass

Give your home a contemporary look with textured sandblasted designs

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Bevelled glass

Create a 3-dimensional appearance with special cut and shaped bevelled glass designs

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Leaded glass

A popular option in doors, often forming leaded diamonds or squares

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Handle options.

Our range of handles complement the Lorimer window perfectly, in terms of colour and form, and is fully suited across our product range:


Bright Chrome

A modern sleek handle with a high-shine finish.

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Our contemporary alternative to brushed satin.

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An ever-popular practical option which is easy to maintain.

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Bright Gold

An excellent option for traditional properties with a shiny finish.

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A dark, matt handle providing an additional choice.

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Case studies

See some of our customer’s homes.