First-class sash windows replacements and installations in Wandsworth, London

Simply Sash Windows and Doors is one of the leading sash windows companies working in London. If you are based in Wandsworth, Putney, or West Brompton, and you are looking for replacement sliding sash windows, new sash windows, sash windows draught-proofing or maintenance, or sash windows repairs, we are the team to call.

We specialise in the supply, repair, restoration, and overhaul of box sash windows, casement windows, and doors throughout the local areas. Alongside traditional sash windows, we also supply and fit uPVC sash windows. Our bespoke sash windows will add charm and character to any property, both residential and commercial. This style of windows is most commonly associated with the Victorian, Edwardian, and Georgian periods, but can also look fantastic in newer properties.

Whether you would like double-glazed or triple-glazed sash windows for a property renovation, or you would like your box sash or flush sash windows to be restored to improve their performance, we are happy to discuss how we can help.

If you would like to talk to our team about your sash window or casement window requirements, please call us now on 07772 345 212 or 020 3662 6986.

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Why choose our box sash or timber sash windows company near Putney

Our company was founded by Jack Fogarty in 2019 and he has over 15 years’ experience in the supply and installation of sash windows, casement windows, and doors, including working as a manager, surveyor, and installer for seven years with a major company. He offers the expertise and quality of a larger company with the personal service of a family-run business. He uses the most advanced technology and sash windows techniques combined with traditional craftsmanship.

Other reasons to choose our specialist sash windows company includes:

  • We offer a wide range of sash windows services, including sash windows installation, replacement sash windows, new and replacement casement windows, draught-proofing, secondary glazing, double and triple glazed sash windows.
  • Our sash windows team can assist with projects of all sizes, including the restoration of sash windows in listed buildings and properties in conservation areas.
  • As well as a complete vertical slider service, we also supply and install plantation shutters, so you can control the light that enters your property, without the need for curtains.
  • We are your one-stop-shop for everything you need when it comes to timber sash windows, uPVC sash windows, and timber doors. We can advise you about the best services for your needs and will never pressurise you into using our services.
  • We can work around your schedule, offering no-obligation consultations. When work takes place, we aim to cause minimal disruption at all times.

SW10 made to measure sash windows and sash windows restorations

We are passionate about the appearance of sash windows and can offer a number of ways to restore your original timber sash windows in Wandsworth, using specialist restoration processes to renovate, repair, and preserve any original sash window. From replacing old cords and rebalancing sash windows to complete draught-proofing, we offer everything you need to restore your sash windows back to their former glory.

Draught-proofing is one of the main ways to improve the energy efficiency of your sash windows. It will improve the functionality of your windows by sealing the gaps draughts where draughts enter, thereby improving the energy efficiency of your property and cutting energy bills. This will also enable your sash windows to move more easily.

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Call us now on 07772 345 212

Secondary glazing for box sash windows in Wandsworth

We can also assist with secondary glazing in Wandsworth. This is a discreet way of improving thermal and acoustic performance by fitting a second window to the existing window. This does not affect the external appearance of the window, so it is a fantastic option for listed properties and homes in heritage areas because it gives you options to match your existing windows perfectly. As well as improving energy efficiency, this service will also boost your security, by reinforcing older windows so they are less easily damaged. Our dedicated team can advise you about the design and installation of your secondary glazing.

Sash windows make a fantastic addition to any property and there are many reasons that timber windows continue to be hugely popular.

Authentic Appearance

Timber windows and doors ensure your period property retains its original charm, by replicating both the design and material of the original windows. Timber windows are often a requirement for listed building renovations.

Long-lasting and durable

Unlike other materials that may discolour and degrade over time, timber can be easily maintained with a new coat of paint or staining. Despite many people thinking that timber requires intensive maintenance, this is not the case. Maintaining your timber sash windows is easier than you think.

Energy efficient

Timber is a naturally insulating material and can provide comfortable temperatures. Many people assume that timber windows cannot be double glazed, but this is not the case. They will ensure that your property remains warm in winter and cool in summer.


Timber is a sustainable material and the eco-friendliest choice when it comes to window frames.

For new timber sash windows or casement windows in Wandsworth, contact us now

For a quote for the installation of bespoke vertical sliders in Wandsworth or another service, please call us now on 07772 345 212 or 020 3662 6986, or email [email protected]

Other areas we install, repair and maintain sash windows include:

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We supply and install timber sash and casement windows that offer stunning aesthetics, security, and longevity. Constructed from premium grade Accoya wood, each window is completely bespoke and designed around your requirements.

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Sometimes called sliding sash windows or vertical sliders, our made to measure sash windows offer beautiful aesthetics and the traditional charm of sash windows, combined with the benefits of state of the art technology.

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We can supply and install new uPVC windows and replacement windows in a number of styles, including sash windows and casement windows. uPVC windows offer a number of benefits including energy efficiency, security and longevity and can be designed to mimic the appearance of traditional windows.

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Our range of windows solutions include the supply and fit of traditional timber casement windows. This style of window is very popular because it is flexible and versatile so can look fantastic in properties of all periods. Casement windows can be made in a many different sizes.