Expert Unvented Hot Water Cylinder Servicing & Repairs in Portsmouth
- duncanvella0

- 7 days ago
- 1 min read
Expert Unvented Hot Water Cylinder Servicing & Repairs in Portsmouth
If you’re looking for a qualified unvented hot water cylinder engineer in Portsmouth, we provide professional servicing, repairs and fault finding for all major makes and models, including Gledhill, Megaflo, Joule, Telford, OSO, Heatrae Sadia and Mixergy unvented cylinders.
Regular servicing is essential to keep your unvented hot water system operating safely, efficiently and in accordance with manufacturer recommendations. We carry out comprehensive inspections of all key safety components, including the temperature and pressure relief valve (TPR valve), expansion vessel, pressure reducing valve, check valve, tundish, thermostats, immersion heaters, discharge pipework and expansion controls.
Whether you’ve lost hot water, have a leaking cylinder, low water pressure, a dripping tundish, or your pressure relief valve is operating, we can quickly diagnose and repair the fault using quality replacement parts where required.
Our unvented hot water services include:
• Unvented cylinder servicing
• Gledhill hot water cylinder repairs
• Megaflo servicing and repairs
• Expansion vessel replacement
• Pressure reducing valve replacement
• TPR valve testing and replacement
• Immersion heater replacement
• Thermostat replacement
• Hot water cylinder fault finding
• Annual maintenance and safety inspections
• G3 qualified unvented hot water engineer
Based in Portsmouth, we also cover Southsea, Cosham, Drayton, Farlington, Hilsea, Portchester, Fareham, Gosport, Havant, Waterlooville, Denmead, Clanfield, Emsworth, Hayling Island, Horndean, Petersfield and surrounding Hampshire areas.

If your unvented hot water cylinder needs servicing or repair, contact us today for a reliable, professional service from an experienced plumbing and heating engineer. Fast response, honest advice and quality workmanship are always guaranteed.




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