Combi Conversion & Heating Overhaul, Headingley

A Victorian through-terrace in Headingley, LS6, running on an ageing gravity-fed system with cold-water loft tanks, a hot water cylinder filling the airing cupboard and a tired old boiler well past its best. The owners wanted to reclaim the storage space, lose the redundant tanks and bring the heating into the modern era. We designed a full combi conversion: decommissioning the old gravity system, removing the loft tanks and cylinder, and installing a modern high-efficiency Vaillant ecoTEC combi. The most technically demanding part of the job was routing clean new copper pipework through the tight terrace layout — every run planned and dressed neatly to feed the new boiler, isolate the old system and tie into the existing radiator circuit without compromising flow. Before the new appliance went on, the whole system was power-flushed to strip out decades of magnetite sludge — and given how hard the Leeds water is, there was plenty of scale to clear — and an Adey MagnaClean filter was fitted to protect the new heat exchanger. Every radiator was balanced, the system dosed with inhibitor, a smart thermostat configured to the owners’ phones, and the gas tightness verified before handover. The result freed up a full airing cupboard, removed the redundant tanks from the loft, and lifted the property’s overall energy efficiency rating by 33% — and the pipework layout is neat enough that we’re happy to show it off as a demonstration of our installation standards.