What is a sash window?

A sash window is made from one or two movable panels, called sashes, that slide vertically within a timber frame. Each sash is balanced by hidden weights attached with cords and pulleys, making the movement smooth and effortless. This simple mechanism allows easy ventilation while maintaining a property’s authentic look.

How sash windows are built

Traditional sash windows are crafted from durable timber, using precise joinery to ensure long life and stability. The two sashes move within a box frame, supported by counterweights. Many restored examples now include slimline double glazing or discreet draught proofing to improve energy efficiency without altering their original appearance.

Why homeowners still love them

Sash windows continue to be popular because they combine beauty with practicality:

  • Period charm that suits Georgian, Victorian, and Edwardian homes

  • Excellent airflow and flexible ventilation options

  • Repairable timber construction for lasting value

  • Upgradable with modern glazing and draught-proofing systems

When properly maintained, a quality sash window can last for generations.

Professional restoration and repair

At Brown’s Sash Windows Restorations, we specialise in sash window repairs, renovations, and draught proofingacross Nottinghamshire and the surrounding areas. Whether your windows are rattling, stuck, or letting in cold air, our craftsmen can restore them to perfect working order while retaining their heritage charm.

Call 07772 494258 or get in touch for friendly advice and a free, no-obligation quotation.

If you’re planning a project and need help with sash window repairs, draught proofing, or full restorations, we’re here to help. Whether you’d like to arrange a site visit, discuss your options, or ask a question, just get in touch.