Annual boiler services, landlord CP12 gas safety certificates and same-week breakdown repairs.
An annual service is the single best thing you can do to keep your boiler efficient, safe and under warranty. Most manufacturers — Worcester Bosch and Baxi included — will void an extended warranty if you skip a year, so J.Avery Plumbing & Heating offers a proper, thorough service rather than a five-minute sticker job.
Every service includes a full strip-down and inspection of the burner, heat exchanger, electrodes and seals, a flue gas analysis to make sure combustion is within manufacturer tolerances, a gas tightness test, a check on expansion vessel pressure and a visual inspection of the whole system. We clean components as we go, top up inhibitor if needed, and leave you with a written service record that satisfies warranty and insurance requirements.
For landlords, we issue CP12 Gas Safety Certificates covering the boiler, hob, cooker and any other gas appliances in the property. We can work to managing agent schedules, send the certificate directly to tenants or landlords by email, and keep a reminder on file so your renewals never lapse. For homeowners with a fault, we carry common spares on the van — PCBs, diverter valves, pumps, fans and pressure sensors — so many breakdowns are fixed in a single visit rather than dragging out over a week. With 22 years of experience across every major boiler brand, most faults are diagnosed quickly and repaired at a fair fixed price, with no call-out charge hidden in the small print.
How we deliver your boiler servicing & repair.
Call or email and we'll offer a convenient morning or afternoon slot, usually within the same week. Landlords can book multiple properties in one run.
On arrival we check operating pressure, controls and any fault codes, and ask about any symptoms you've noticed such as noise, short-cycling or poor hot water.
We remove the boiler casing, inspect and clean the burner, heat exchanger and electrodes, check seals and condensate, and verify combustion with a calibrated flue gas analyser.
We test gas pressure and tightness, expansion vessel charge, safety devices and water quality, topping up inhibitor where required to protect the system.
You receive a written service record or CP12 certificate by email or hard copy, with clear notes on anything that needs attention now or at the next service.
The questions our customers most often ask.
Once every 12 months. It's a manufacturer warranty requirement for almost every modern boiler, a legal requirement for landlords, and it catches small faults before they turn into expensive breakdowns.
A standard domestic boiler service is a fixed price with no hidden extras. Landlord CP12 certificates covering additional appliances (hob, cooker, fire) are quoted based on the number of appliances tested — ring us for an exact figure.
A service is a full clean, inspection and combustion test to keep the boiler running well. A CP12 Gas Safety Certificate is a legal safety check that landlords must have every 12 months for every gas appliance in a rental property. Many landlords book both together.
Not always. Sometimes it's just a case of topping up via the filling loop. If pressure keeps dropping it usually points to a leak, a failed expansion vessel or a faulty PRV, all of which we can diagnose and fix on the same visit in most cases.
Yes. We work on Worcester Bosch, Baxi, Vaillant, Ideal, Glow-worm, Viessmann, Potterton and most other major brands. Where a boiler is genuinely beyond economical repair we'll tell you honestly rather than keep fitting parts.
It protects it. Missing an annual service is the most common reason manufacturers refuse warranty claims. We leave a dated record so you can evidence the service history at any time.
No hidden call-out fees. You pay a clear diagnostic and labour charge, and we quote the cost of any parts before fitting them so you're always in control of the total spend.
Tell us about your project and we'll be in touch within 2 hours.
