Bespoke timber & alluminium windows & doors

Sliding sash windows

Beautiful sash windows: combining the traditional with the modern.

About sliding sash windows.

Lemon Glass timber sliding sash windows have been designed to include traditional features, whilst incorporating modern operation, technology and energy efficiency.

We offer two styles of sash windows:

  • Traditional cords & weight style or
  • Spiral balance windows, perfect for modern constructions.

All Lemon glass sash windows are manufactured to a high specification, featuring internal glazing and double weather-strips making it an ideal choice for both renovation work and new build projects.

Bespoke projects.

Windows are available in a range of formats including angled bay, square bay and bow, with arch top, internal arch and arch fillet options.

Every option allows you to customise it to your individual specification and we have various stain, paint, glazing and sash horn profiles to select from, as well as a range of accessories to add the perfect finishing touches and provide a high level of security.

Lemon Glass sliding sash windows are well suited to offices or homes, hotels to apartments, cottages to rental properties, whether you are refurbishing or starting from scratch.

Bespoke timber & alluminium windows & doors

‘“In a world where most replacement window companies are considered crooks and thieves, it’s very refreshing to find one that is genuinely capable, caring and dedicated. And almost on our own doorstep! Thanks for our timber replacement sash windows – they look amazing and have given our offices a whole new lease of life.”’

V.S., Services Manager, estate agency group, St Albans

Energy efficient and secure.

The Lemon Glass approach to environmentally-friendly manufacturing ensures that our products are produced to the highest energy rating standards, and all our products are internally glazed to provide advanced security.

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

Lead time.

Our standard lead time is 6 weeks from whenever you confirm your order, and we will deliver your products directly to your doorstep and install them promptly.

For more details of Lemon Glass products and services, or to get a free, no-obligation quote, contact Lemon Glass today on 01727 532011 or

Bespoke timber & alluminium windows & doors

Product description

TypeCords & weights, or spiral balances
MaterialSoftwood and hardwood
StyleTraditional or modern design
U Value Range0.9 – 1.8 m²K
GlazingSingle, double or triple
Acoustic Range32dB – 40db
Profile 165mm or 145mm
Ironmongery Polished chrome, satin chrome, polished brass
BarsAstragal or constructional
Paint Factory coated with 3 layers
Colour Any RAL or Farrow & Ball; single or dual colour (different outside and inside)