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Sash Windows

At White Cat Joinery we are London’s sash window specialists. No matter what type of work you require, whether restoration, replacement, draught proofing or double glazing you can rest assured that everything we do is bespoke, handmade in our workshop in London and comes with a 10 year workmanship guarantee.

Handmade Workmanship

Everything we create is handmade in our London workshop. All our double glazed units and glass is cut in-house so we keep an eye on our rigorous standards. Our team is highly skilled and we only use traditional methods of making. That means we don’t stock any ready-made windows or doors, everything is bespoke.

Fully Guaranteed

All of our new sash windows come with a fully comprehensive guarantee and is made in accordance with Building Regulations and the relevant BS standards (EN 1279). All products are also highly energy efficient. We are also accredited to the highest industry bodies, FENSA registered and FSC® certified giving you extra peace of mind.

We Know Sash Windows Inside Out!

With more than 20 years of highly skilled experience, we know sash windows inside out! Whether your windows are Edwardian, Regency, Georgian or Victorian we completely understand the mechanics and importance of aesthetics which means our traditional sash windows can easily adhere to requirements for listed buildings and conservation areas, retaining that all-important character.

We can organise the following sash window services in any style you want, whether you would rather keep it classical or you have other design ideas. We can also provide you with special glass including bowed, obscured and stained glass options. You can even take advantage of our own inspirational design suggestions too.

  • Vertical sliding sash windows
  • Horizontal sliding sash windows
  • Secondary glazing
  • Double glazing
  • Fixed sash windows
  • Traditional cord-hung windows
  • Spiral hung windows
  • Sash window bays

Double Glazing

If you want to replace your current windows with double glazed panes, you’ve come to the right place. White Cat Joinery is the expert in double glazed sliding sash windows into existing frames. We will carefully inspect your sash windows and check if the frames are in suitable condition. If they are, we will just replace the sliding areas which is more cost-effective for you. This also minimises any disruption and is in keeping with the period style of your property.

If necessary, we are able to manufacture new timber box sash windows with frames in our workshop in London using the best possible materials and with white semi-gloss paint inside and outside (this consists of primer, preservative, undercoat and topcoat). Of course, if you prefer a different colour or stains, please just ask us and we will endeavour to provide what you want (this may incur additional cost). Then we install your windows into your home, retaining all the period features and never detracting from your home’s character and heritage.

Traditional Box Sash Windows

With heritage dating back to the 17th Century, our traditional box sash windows will always ensure the look of your home is exactly as it should be. White Cat Joinery works closely with conservationists in many London areas to maintain the look of traditional box sash windows. We know how important it is to retain those character features giving you peace of mind that you are using the best possible joiner in the industry. We can replicate, copy and retain your traditional box sash windows to perfection, while making sure they are fully functional and give you today’s benefits of draught proofing, noise reduction and far greater energy efficiency.

Simple Quotations

Getting a quote couldn’t be easier. We have an easy-to-use online quote tool that you fill in and submit to us. We will get back to you with a no obligation free quote within one business day. Following the online quote, we would suggest that one of our highly skilled team visit your property to discuss your requirements in finer detail and confirm the estimate price.

Once you agree to use White Cat Joinery for your sash window restoration or replacement, we will draw up relevant paperwork and request a deposit. We will then conduct a manufacturing survey, take required measurements and begin crafting replacement or new windows for you. Once they are ready, we will organise a convenient installation day and we will install your windows. We don’t use any third parties. On completion, our fitter will make sure you are completely satisfied with the job.

The Sash Window Styles That We Offer

There is no standard sash window style. We have numerous different types that we can create or restore for you. Alternatively, if you have your own style in mind, please let us know and we can help you design something visually stunning. We also have our own fabulous inspirational designs which you can peruse here.

sash window 1 over 1

sash window 1 over 1

sash window 2 over 1

sash window 2 over 1

sash window 2 over 2 horizontal

sash window 2 over 2 horizontal

sash window 2 over 2

sash window 2 over 2

sash window 3 over 1

sash window 3 over 1

sash window 3 over 2

sash window 3 over 2

sash window 3 over 3 narrow

sash window 3 over 3 narrow

sash window 3 over 3

sash window 3 over 3

sash window 3 over 6

sash window 3 over 6

sash window 4 over 1

sash window 4 over 1

sash window 4 over 4

sash window 4 over 4

sash window 5 plus 1 over 1

sash window 5 plus 1 over 1

sash window 6 over 1 circle

sash window 6 over 1 circle

sash window 6 over 1

sash window 6 over 1

sash window 6 over 6 narrow

sash window 6 over 6 narrow

sash window 6 over 6 wide

sash window 6 over 6 wide

sash window 6 over 6

sash window 6 over 6

ash window 8 over 8 narrow

sash window 8 over 8 narrow

sash window 8 over 8

sash window 8 over 8