G DAVIES & SONPLUMBING & HEATING.G DAVIES & SON HAS HAD OVER THREE GENERATIONS OF QUALLIFIED ENGINEERS.G DAVIES & SON INSTALL GAS, L.P.G., OIL, & SOLID FUEL BOILERS, & UNDER FLOOR HEATING.G DAVIES & SON ALSO INSTALL SOLAR HOT WATER SYSTEMS, BATHROOMS, SHOWERS & ALL DOMESTIC PLUMBING.