Bespoke timber & alluminium windows & doors

Casement windows

Lemon Glass casement windows – the ideal solution for replacement, renovations, extensions and new build properties.

About casement windows.

Lemon Glass casement windows are designed to complement all type of projects, including window replacement, refurbishments and new builds.

We offer two casement windows design options – flush fit and storm-proof – and both are designed and manufactured to deliver the highest thermal, acoustic, weather and security performance.

Casement windows are typically top-hung or side-hung and can be rectangular, arched or circular, so we can customise them to provide a perfect fit. We can also provide mock sash casement windows, finished with ‘horns’ to provide an authentic sash window look.

Bespoke timber & alluminium windows & doors

‘“All our friends, relatives and neighbours commented on the new windows you installed last week. We’re delighted with them!”’

S.McD., Rickmansworth

Which timber or aluminium casement window is right for you?

Whether you live in a Victorian terrace or a country cottage, in a listed property or in a contemporary new-build, we will be able to provide a casement window suitable for the property.

Speak to one of our customer service advisors who will show you the options and prices, and help you to decide how to proceed.

Energy-efficiency means we minimise our impact.

Our environmentally-friendly approach to manufacturing ensures that our products are produced to the highest energy rating standards that contribute to a cleaner, more sustainable world.

By switching to energy efficient windows you can save energy and reduce your household bills, and all our products are available in 1.1 – 1.5 w/m2k U-value, A-rated units.

Security is a priority on all Lemon Glass windows.

All our products are internally glazed for advanced security and we offer multi-point locking mechanisms as standard for all our casement windows.

Easy clean hinges – just another way we make your life easier.

Our concealed hinges (including the restricted option) allow the sash, when opened, to slide towards the centre of the frame, and thus enable the outside to be accessed for easy cleaning.

Whether you traditional or contemporary windows, contact Lemon Glass today for free advice and guidance on 01727 532011 or

Bespoke timber & alluminium windows & doors

Product description

TypeFlush fit, lipped (storm-proof), mock sash for the imitation of sash window, top-hung
MaterialSoftwood, hardwood or aluminium
U Value Range0.9 – 1.9 m²K
GlazingSingle, double or triple
Acoustic Range32dB – 40db
IronmongeryPolished chrome, satin chrome, polished brass, black and white
BarsAstragal or constructional
PaintFactory coated with 3 layers
ColourAny RAL or Farrow & Ball; single or dual colour (different outside and inside)
Fire EscapeFriction hinges and flying mullion
VentilationTrickle ventilation