Glow-worm has a strong heritage within the UK heating market spanning over 75 years and has been a trusted and reliable boiler manufacturer brand well known to the general public and trade alike. Developing one of the first condensing boilers in the 1990's which is now the bench mark standard in boiler installations to this day. UK Plumbing Ltd are Glowworm boiler spares stockist and carry an extensive stock of boiler spares for both current Glowworm boilers and older obsolete boilers ensuring that your boiler remains reliable and serviceable for many years including Glowworm Air Vents, Glowworm Burners, Glowworm Clocks & Programmers, Glowworm Diverter Valves, Glowworm Electrodes, Glowworm Expansion Vessels, Glowworm Fans, Glowworm Flow Switches, Glowworm Gas Valves, Glowworm Gauges, Glowworm Heat Exchangers, Glowworm PCB's & Electronics, Glowworm Pressure Switches, Glowworm Pressure Valves, Glowworm Pumps, Glowworm Thermistors, Glowworm Thermostats and Glowworm Miscellaneous. You can use the links above to navigate direct to the Glowworm spare required or if you know the Glowworm part reference of the spare you can use the search facility but if you require assistance in locating the spare required then please contact us and we will be pleased to advise.