G3-qualified engineers · Based in Horndon-on-the-Hill
Keep your stored hot-water system maintained with a cylinder service from Horndon Services Limited. Our engineers hold the G3 qualification for unvented hot-water systems.
£90 including VAT for an unvented cylinder service. Tell us your cylinder make, model and postcode so we can confirm the appointment and the work appropriate to your system.
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An unvented cylinder stores hot water under pressure. It is a separate appliance from the boiler that may heat it, and it has its own controls, expansion arrangements and safety devices. Some cylinders are heated directly by immersion heaters; others use a boiler or another heat source.
If your system is working and due routine maintenance, ask for a cylinder service. If you have no hot water, a leak, unusual discharge or a control fault, tell us before booking: an existing problem may need diagnosis and a repair quotation. We discuss any recommended additional work and its cost before proceeding.
The correct checks depend on the make, model and installation. We follow the manufacturer’s service instructions rather than applying the same procedure to every cylinder. The service can include:
A routine service is not a promise to resolve an existing fault or replace every worn component for the service price. Describe any symptoms when you enquire so we can agree the right visit and explain the charges.
Follow your appliance manual and warranty conditions. Annual maintenance is recommended for many unvented cylinders. For example, Heatrae Sadia recommends twelve-monthly maintenance by a competent person. The exact work depends on the cylinder, its condition and the manufacturer’s instructions.
Keep the service record with the appliance paperwork. Regular maintenance helps identify issues with controls, expansion and safety components; it does not replace fault investigation when something changes between visits.
These are different appointments. A cylinder service covers the hot-water storage system. A boiler service covers the boiler, while a landlord gas safety check (CP12) concerns the relevant gas appliances and flues. Booking one does not automatically include the others.
If you would like a boiler and cylinder serviced during the same visit, list both appliances in your enquiry. We confirm the scope and combined quotation before booking. Our £120 boiler-service-and-CP12 package is a separate option; it does not include a cylinder service.
A photograph of the label and a wider picture of the cylinder can help us understand the installation. Do not remove covers or disturb controls to take a photograph.
No. They have different components and maintenance requirements. Tell us if you need both so the visit is arranged correctly.
Send us the make and model. Different cylinders manage expansion differently, so we confirm the model-specific work before booking. G3-qualified engineers carry out the unvented-system service.
Report this as a fault rather than waiting for the next routine service. Do not block a discharge pipe or adjust safety valves. Follow the appliance’s user instructions and contact a suitably qualified engineer for advice.
We travel from Horndon-on-the-Hill to customers in nearby Essex areas including Basildon, Grays, Stanford-le-Hope, Benfleet, Canvey Island and Brentwood. Send your postcode to confirm availability. For nearby coverage information, see our Corringham services.
An unvented cylinder service is £90 including VAT. We confirm the appointment, appliance details and any separately agreed work before booking. Call for an out-of-hours quotation. See Our Rates for general charging and payment information.
Request a cylinder-service appointment, call 0800 062 2560 or email info@horndonservices.co.uk. The form requests a callback; it does not confirm a booking or take payment. You can also read customer reviews and meet our team.
