Boiler Repair & Installation in Farnham

A service plan spreads the annual check and often includes breakdown cover for parts and labour. It's worth it for older boilers or if a breakdown would be a crisis; for a newer boiler under warranty, a standalone annual service may be cheaper.

Frequent culprits: no hot water or heating (diverter valve, thermostat), low pressure (leak or expansion vessel), pilot/ignition failure, strange banging (kettling from limescale), and leaks. Many are affordable fixes; a cracked heat exchanger is the one that usually condemns a boiler.

Annually. A yearly service keeps the manufacturer's warranty valid, catches wear before it becomes a breakdown, and confirms safe combustion. Landlords are legally required to have an annual gas safety check in many countries; owner-occupiers should treat it as maintenance, not optional.

Gas and oil boiler work is safety-critical and legally restricted to registered engineers almost everywhere (see country notes). Never let an unregistered person touch a gas appliance — carbon monoxide and explosion risks are real, and it voids insurance and warranties.

Rule of thumb: if the boiler is over 10-12 years old, out of warranty, and the repair costs more than a third of a new unit, replace it. Newer boilers are far more efficient, so a replacement often pays back through lower running costs on top of ending the breakdowns.

A like-for-like combi replacement typically runs £1,800-3,000 supplied and fitted, with system and regular boilers higher. A common repair (pump, PCB, valve) is usually £150-700. Confirm the engineer is Gas Safe-registered before any work.