Greystone Chimneys installs in London, Berkshire, Surrey and West Sussex and Greystone West installs in Bristol, Bath, Somerset, Devon and Cornwall.


Every day, we install Furanflex flue lining and multi flue linings for builders, contractors, property managers and architects across London and the South and West of England.

Because it moulds itself to the sides of the flue, and is extremely smooth and well-insulated, Furanflex maximises chimney performance and cross-sectional area – allowing old, condemned and awkwardly designed flues to be re-opened, and giving far greater freedom over a property’s layout and design.

Unlike steel liners – classified as temporary by HETAS – Furanflex is also guaranteed for 25 years. It’s made of a glass fibre reinforced thermosetting resin composite, which is stronger than steel and will not corrode.

It is highly heat resistant to 400 degrees Centigrade, only 3mm thick – and as there are no joints, the gas-tight finish (certified to 200 pascals) eliminates the requirement for inspection hatches under Gas Safe regulations.

For more information, please get in touch on 0800 681 6015 or by email.

Why Furanflex at a glance:

FURANFLEX LONDON: We line Furanflex in Prime central London, Kensington and Chelsea, Westminster, The City, Hammersmith and Fulham, Camden, Brent, Islington, Richmond, Wandsworth, Barking and Dagenham, Barnet, Bexley, Bromley, Croydon, Ealing, Enfield, Greenwich, Hackney, Haringey, Harrow, Havering, Hillingdon, Hounslow, Kingston upon Thames, Lambeth, Lewisham, Merton, Newham, Redbridge, Southwark, Sutton, Tower Hamlets and Waltham Forest.