Bespoke Sliding Sash Windows

With over 200 years of collective experience, Sash Window Specialists are renowned industry leaders for new and replacement sash windows—serving clients throughout London, the Home Counties, and the South East. Our sliding sash windows and box frames are installed by experienced fitters and built to order.

Additionally, in our commitment to sustainability, we use only high-quality timber for our sliding sash windows. Did you know the production of uPVC plastic frames requires eight times more energy than timber windows? With this in mind, we specialise in using Accoya. An aesthetically pleasing, natural wood with greater durability and sustainability than any plastic alternative. Our work comes with a full guarantee, including a 50-year warranty against rot.

Advantages of installing new sliding sash windows

• Restore the classic appearance and heritage of period properties while increasing value
• Maintain your home’s unique character while adhering to listed building regulations
• Replace stuck, warped, or difficult-to-open window sliding sash window frames
• Improve heat retention and decrease draughts with double-glazing
• Enhance ventilation and ease of use
• Reduce noise with acoustic safety glass

Contact us today for a free quote

We offer a range of customisation options for sash windows, perfectly tailored to suit your preferences and the aesthetics of your home. Sash Windows Specialists’ team of experienced professionals can assist you with every aspect of the process, ensuring you are fully satisfied with your sliding sash windows at a competitive price. The following are your options for materials for new and replacement sash windows.

Timber – We exclusively use wood for traditional sash windows and have a range of timber types to choose from. These include the highly durable and popular Accoya timber and grade-A redwood.

Glazing – Our glazing options include double-gazing, acoustic glass, laminated safety glass, toughened safety glass, and sandblasted (Satin) glass. We’ll help you choose the most suitable option for your needs. We can provide patterned panes from our trusted suppliers for bathrooms or specialised windows.

Paint Colour – While many customers love the classic white finish, we offer a wide range of paint colours and finishes. Each job is completed with three coats of durable M.V.P (micro-porous) acrylic paint.

Window Furniture – We supply a full range of window furniture available in a variety of finishes. Examples include Fitch Locks, Brighton Locks, Sash Lifts, ‘D’ Handles, and Dual Position Security Bolts.

Can’t find what you’re looking for? We also provide specialist services for casement windows and a variety of doors—such as single doors, French doors and bi-folding doors.

Our specialists manufacture and fit your custom wooden sash windows and a variety of doors. We take great pride in offering bespoke sash window services, high-quality workmanship, precise installation, and dedicated aftercare support. Our aim is to help you maximise the potential of your home, with our expert team guiding and advising you every step of the way.