Telford Tempest Servicing & Repair
G3 qualified annual servicing and repair for Telford Tempest unvented cylinders — direct, indirect and slimline — across Orpington, Bromley, Sevenoaks and Kent. £140 with no VAT.
Telford Servicing
- £140 full G3 annual service, no VAT
- £285 cylinder + heat pump together
- Tempest direct, indirect & slimline
- Service record to protect the guarantee
- Remote expansion vessel checked & set
Why the Yearly Service Matters on a Telford
Telford cylinders are made in Shropshire, and the Tempest range is formed from 2304 duplex stainless steel.
The guarantee is the reason to take the annual service seriously. Retailers list a lifetime guarantee on the Tempest's stainless body if it is serviced every year, with a shorter guarantee on components. Skip a year and you may have weakened the strongest guarantee in your house. Check your own paperwork for the exact terms.
Tempest cylinders are supplied with a 3 bar inlet control group, a factory-fitted temperature and pressure relief valve set at 7 bar and 90°C, and a separate wall-mounted expansion vessel.
What I Check on a Tempest
The remote expansion vessel
Because it sits on the wall away from the cylinder, it gets forgotten. Its charge is checked with the system depressurised and set to suit the 3 bar inlet group and your mains.
3 bar inlet control group
The pressure reducing valve should hold the cylinder at its working pressure. If it creeps, the relief valves end up doing work they were never meant to do. Strainer cleaned, outlet pressure checked.
T&P valve at 7 bar and 90°C
Operated by hand, discharge watched at the tundish and the reseat checked. A T&P valve that dribbles is a symptom, and I find out of what.
Immersions and high-limit stats
Direct Tempests heat with immersion heaters and carry a high-limit thermostat; I test both. On indirect models, the cylinder thermostat and the valve it controls are checked instead.
Discharge pipework
Tundish position, pipe size, fall and termination checked against Approved Document G3 — the part of an installation most often done badly.
Tempest Faults I See
Water at the tundish
On a Tempest this usually traces back to the remote vessel. Now and then it's the expansion relief valve itself, scaled open.
Hot water losing pressure
The strainer or the pressure reducing valve on the cold feed, almost every time.
No hot water on a direct model
An immersion element or its thermostat. Where a cylinder has two immersions, one can fail and go unnoticed for months.
Discoloured hot water
Rare from a stainless cylinder, so the source is usually elsewhere in the pipework — and finding it matters.
What It Costs
A full G3 annual service of a Telford cylinder is £140 with no VAT, and you get a written inspection record. If you have a heat pump as well, servicing both in one visit is £285.
Repairs are quoted at a fixed price before work starts. A vessel, a valve or an immersion is far cheaper than a new cylinder, and that is usually what a Tempest needs.
No call-out fee, and I'm not VAT-registered, so the price I quote is the price you pay.
Telford Tempest Questions
Book Your Telford Service
£140 with no VAT, and the yearly record your guarantee depends on, across Orpington, Bromley, Sevenoaks and Kent.
07717 846247
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