Grendon Joinery - About Us

Grendon Joinery has been established for over 25 years (formerly trading as Polesworth Patterns) and supplies joinery products to private and trade customers.

We have a large, well equipped workshop which enables us to work on large scale products such as Barn Conversion work and all elements of internal and external joinery.



All our joinery is made to take 24mm sealed units with Pilkington Glass as standard. All windows are fitted with trickle vents and draught seal.

We finish all products with one coat or primer or treatment as required by the customer – the choice is yours.

We only use the finest, high quality softwood and hardwoods from reputable suppliers. We can supply windows and doors in a range of woods including Idigbo, Sapele, Meranti, Oak and many more. We can advise and supply windows and doors with traditional or contemporary ironmongery and window furniture – whatever is your preference. 

Please do not hesitate to contact us to discuss your individual requirements.


Alan Barnes

Grendon joinery