A property management company had 4 plumbers assess a block of flats over the last 18 months to advise on poor water pressure throughout the flats. Residents have become increasingly irritated at the lack of progress. After a 3 hour survey, the issues were clear. Residents had been refurbishing with combi boilers, putting pressure on the incoming mains. However, the mains hadn’t been upgraded to cope with the additional pressure and flow rate. We advised, a new, correctly sized main and water booster for upper floors would sort the problems. The management company were so pleased with our work, they came back to us to survey another similar block of flats.