Dulwich Sash Windows

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Oak Joinery endeavours to purchase only timber accredited by the UK Forest Stewardship Council (FSC) and from suppliers who comply with the British and International regulation guidelines on sustainable resources.


FSC is an independent, non-governmental, not for profit organization established to promote the responsible management of the world's forests.

Having a commitment to the environment in our industry is a must as most of our work extends to listed buildings and localised conservation areas.


Using materials that respect the environment gives our customers the assurance that their sash windows, doors, staircases and bespoke joinery projects are sustainable for years to come.


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"Oak Joinery have made me a beautiful new front door and frame that also makes my property more secure. Most people that visit me have complimented me on my choice."

Debbie, Chislehurst
"Thank you for our new sash windows, they certainly keep the street noise and dust out and we are looking forward to a much warmer winter this year."

Peter, Forest Hill
"We have had new sash windows built by Oak Joinery and their workmanship is great, we were also pleased with the fact that they gave good advice with the planning applications."

Roger, Beckenham
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