Keystone Supplies Limited is based in the historic market town of Chesterfield, Derbyshire. As an independent supplier of timber windows, doors, flooring and furniture, Keystone Supplies have the ability to design and supply entire projects, meeting the requirements of any particular development. All of our product ranges are of the highest quality with an almost endless range of styles and are made to measure.
At Keystone we are dedicated to the supply and installation of beautiful, bespoke, made to measure timber windows casement, sash, flush casement, storm proof casement, mock sash or aluminium clad windows. To complement our window collection you will find our solid wood and double glazed entrance doors, in styles from traditional to contemporary with many options of features, function and character.
We work not only to ensure every order is successfully completed to meet the requirements of the customer, but also flawlessly and hassle free for the client. Our close working relationships also allows us to tap into the latest technologies, evident in our innovative designs from flooring to windows, doors and furniture.
At Keystone we are dedicated to the supply and installation of beautiful, bespoke, made to measure timber windows casement, sash, flush casement, storm proof casement, mock sash or aluminium clad windows. To complement our window collection you will find our solid wood and double glazed entrance doors, in styles from traditional to contemporary with many options of features, function and character.
We work not only to ensure every order is successfully completed to meet the requirements of the customer, but also flawlessly and hassle free for the client. Our close working relationships also allows us to tap into the latest technologies, evident in our innovative designs from flooring to windows, doors and furniture.
Services
Keystone-Supplies supplied our new windows and doors along the entire frontage of our home, we had an excellent service and the quality of the product was fantastic!
As a new customer of Keystone-Supplies we would like to comment on our satisfaction with the product & the professionalism of the company.
As a new customer of Keystone-Supplies we would like to comment on our satisfaction with the product & the professionalism of the company.
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.
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 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.
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.
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 there is one that is just what you want.
Flush casement windows are characterized by openers that close into the frame and finish flush with the face of the window.
Horizontal and vertical glazing bars are used to continue a uniform pattern where mullions or transoms have been fitted, it is also used create a Georgian style window by using a cross within each unit of glazing.
Flush casement windows are characterized by openers that close into the frame and finish flush with the face of the window.
Horizontal and vertical glazing bars are used to continue a uniform pattern where mullions or transoms have been fitted, it is also used create a Georgian style window by using a cross within each unit of glazing.
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.
Horizontal and vertical glazing bars are used to continue a uniform pattern where mullions or transoms have been fitted, it is also used create a Georgian style window by using a cross within each unit of glazing.
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.
Horizontal and vertical glazing bars are used to continue a uniform pattern where mullions or transoms have been fitted, it is also used create a Georgian style window by using a cross within each unit of glazing.
Sliding Doors are an excellent choice for modern living rooms.
Thanks to large glass panes and minimal frames your interior space is full of light and make the outside a natural extension of your living space.
Sliding doors are very functional and save space.
The smartest choice for exterior folding door hardware.
New locking mechanism with no loose parts.
The new push button locking mechanism is a stand-out element and is consistent across all hangers and pivots.
It has no loose parts that can be misplaced during installation.
Thanks to large glass panes and minimal frames your interior space is full of light and make the outside a natural extension of your living space.
Sliding doors are very functional and save space.
The smartest choice for exterior folding door hardware.
New locking mechanism with no loose parts.
The new push button locking mechanism is a stand-out element and is consistent across all hangers and pivots.
It has no loose parts that can be misplaced during installation.
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