New Boiler Installation in Lewisham

Lewisham boiler installation covers SE4, SE6, SE8, SE12, SE13, SE14, SE23, and SE26, taking in Brockley and Forest Hill Victorian terraces, Honor Oak Edwardian villas, and Lewisham and Catford post-war estates. The Brockley conservation area sets period-appropriate fitting standards, and the Forest Hill and Sydenham Edwardian housing stock has substantial amounts of original copper now ageing into pinhole-leak territory, so combi swaps frequently expand into partial re-pipes. A New Cross one or two bed conversion suits a 24 to 30 kW Vaillant ecoTEC plus or Worcester Bosch Greenstar 4000 combi; a three or four bed SE23 terrace typically moves to a 30 to 35 kW combi; and a large Honor Oak villa with two or more bathrooms usually moves to a system boiler with a 180 to 210L Megaflo cylinder.

Thames Water across Lewisham is moderate, so every install gets a BS 7593 inhibitor dose of Sentinel X100 or Fernox F1 and an Adey MagnaClean Pro2 or Fernox TF1 Omega magnetic filter on the return. Building Regulations Part L makes the install notifiable; Gas Safe lodges within 30 days and the building-control certificate is emailed inside 14 days.

BS 5440 flue clearances (300 mm from opening windows, 600 mm from boundary or facing wall, 2.1 m above pedestrian paving) are tight on Brockley and Forest Hill terraces backing onto neighbours, and we use Part J fire-rated ducting where flues route through party-wall voids. Combi installs across Lewisham start from £1,800 and system boilers with a cylinder start from £4,500. Worcester Bosch Greenstar 4000 and 8000 Life and Vaillant ecoTEC plus and exclusive ranges carry 10 to 12 years' manufacturer warranty when registered by an accredited installer, and we add a 12-month workmanship guarantee. Survey to install is one to two weeks for combi swaps and two to three weeks for system upgrades; back-boiler removals in Catford period stock run three days on site.