Sill-Line Perimeter Heating Limited is one of the UK’s leading manufacturers of specialist natural convection heating products for all types of commercial and domestic buildings. We also specialise in the design and manufacture of architectural casings to enclose fan coil air conditioning units.

Operating from premises in Daventry Northamptonshire, we manufacture all items including the heat exchanger, grille and casing. Our small team of project managers and engineers have a wealth of experience built up over many years. Major projects have included the New Lansdowne Road International Rugby Football Stadium, Gatwick Airport Terminal Link Bridge and St Georges Wharf Vauxhall London Havant County Council New Offices & Bank of America’s new offices at Canary Wharf .