At Keystone we are dedicated to the supply and installation of  beautiful, bespoke and made to measure all wood casement windows, sash windows, flush casement, storm proof casement, mock sash or aluminium cladded.

 

Available in top performance double glazing as standard we also offer triple glazing options from UK made Pilkington Glass.

 

We offer truly bespoke made to measure products selected to complement the English home - whether you live in a period property , a Victorian terrace or a more modern property in need of contemporary flair.

 

Furthermore, unlike timber windows of old, our products will not twist, will not rot and require very little maintenance due to the finger jointed engineered timber that minimises the risk of movement.

 

We use High levels of insulation and security to ensure there is no need to sacrifice beauty for comfort. These are double or triple glazed doors and windows with no compromise - sash windows are rattle and draught free and casement windows retain their perfect fit for many years.

 

Our windows are avilable in Oak Meranti or Redwood timber.

 

Our windows can be finished in any RAL colour of your choice and are finished with a special microporous paint that will allow the natural timber to breath.

 

Keystone Supplies products are delivered with care by local specialists, so when you have finished browsing our website why not visit our showroom, or contact us for advice or a written quotation.

WINDOWS

Bespoke timber sash window (London)
Hardwood sash windows and door project at Dronfield, Chesterfield really did transform the property
Timber windows and doors supplied and fitted by keystone
Bespoke timber casement

Flush Casement windows are still the most popular choice in the domestic market and we offer a wide range of styles and finishes, so you can be sure to find a window to suit your needs.

 

Flush casement windows are characterized by openers that close into the frame and finish flush with the face of the window.

 

Traditional sash windows and spring loaded sash windows

Our wide range of traditional sash designs are for those looking for historical style combined with modern standards bringing them up to high standard of comfort and thermal efficiency.  

Sliding sash windows open vertically providing a maximum face opening for ventilation and maximum space.

 

 

Tilt & Turn windows are contemporary casements allowing the casement to open into the room from the top and side. The main advantages:  unique energy efficiency, air tightness, sound control, water resistance and easy cleaning.

 

Thanks to the tilt option these windows provide excellent, draft-free ventilation combined with a high-level of security multi-point locking systems with key locking handles.

 

Ideal in a modern houses, buildings and apartments.

Aluminium Clad Timber windows are a combination of the beauty of nature and great protection. This gives your windows a durable solution with low maintenance for many years. The windows are casements allowing the casement to open into the room from the top and side.

 

Unique energy efficiency, air tightness, sound control, water resistance and easy cleaning.

Thanks to the tilt option these windows provide excellent, draft-free ventilation combined with a high-level of high security multi-point locking systems with key locking handles.

Traditional sash windows and spring loaded sash windows

Our wide range of traditional sash designs are for those looking for historical style combined with modern standards bringing them up to high standard of comfort and thermal efficiency.  Sliding sash windows open vertically providing a maximum face opening for ventilation and maximum space.

 

Available systems of opening:

– Cord and weights

– Spiral balance

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Stormproof Casement windows are also one of the most popular choice in the domestic market and we offer a wide range of styles and finishes.

 

Stormproof windows feature rebated openers which lip over the front face of the window frame.

Stormproof system gives the benefit of security, warmth, warp resistance, weathering and superior glazing performance.

 

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Keystone Supplies | Unit 15 |  Storforth Lane Trading Estate | Hasland | Chesterfield | Derbyshire | United Kingdom | S41 0QQ

 

Hardwood sash windows and door project at Dronfield, Chesterfield really did transform the property