Mayfair · Heating & hot water
My hot-water cylinder leaks or does not heat
Get the fault understood, the next step explained and the repair underway.
Across London · Homes, landlords & managed properties · Your area: Kensington
For safely accessible, straightforward faults. Parts, materials and further work quoted separately. If a fix needs more work, the agreed visit charge covers call-out and assessment.
Call for your visit price and arrival estimate. Sending a form does not book a visit.
Report a cylinder leak, unreliable stored hot water or an immersion-heater fault with the equipment type and symptoms. Mayfair arranges the appropriate specialist for the hot-water system and any associated electrical work.
Your visit, explained
Call-out, assessment and labour to fix a small, straightforward issue on the first visit.
For safely accessible faults that can be resolved on the first visit. Parts, materials and further work are quoted separately for your approval.
For urgent London plumbing and heating repairs, we aim to arrive within 1 hour, subject to availability, postcode, the specialist required and travel conditions. Call for your estimated arrival time.
Check availability: 020 4571 4235If a first-visit fix isn’t possible, the agreed visit charge still covers the call-out and assessment. We explain the fault and quote any parts, further investigation or larger repair for your approval.
We’ll give you the full visit price when you book. There is no additional call-out fee on top of that price.
Any workmanship guarantee is set out in your written quotation: the work covered, duration, exclusions and how to report a problem. Product warranties follow the manufacturer’s terms. A repair does not automatically guarantee the whole existing system. Your statutory consumer rights are unaffected.
Gas work must be carried out by an appropriately qualified Gas Safe registered engineer. Electrical and unvented hot-water work need the relevant competence and certification where required. Mayfair matches the work to the appropriate specialist.
Read the service booking information · How to check Gas Safe registration
The situation matters more than the name of the fault. Use the safety guidance above if anyone may be at risk.
Understand the repair
A cylinder may be vented or unvented and heated by a boiler, immersion or another source. The assessment considers that arrangement before proposing parts. Unvented cylinders have safety controls and maintenance requirements that need a competent specialist familiar with the system.
A useful first enquiry
Do not cap or obstruct a discharge pipe, operate safety valves or remove electrical covers. Steam, very hot discharge or signs of overheating need urgent specialist advice; keep clear of the equipment and follow the manufacturer’s emergency instructions.
Immersion-heater work, controls, safety components and cylinder replacement are different scopes. Access, draining, electrical work and disposal can affect the quotation. Annual cylinder servicing is separate unless requested and included.
Send the symptoms, equipment details and postcode. We’ll arrange the right engineer to investigate the fault and explain the repair options.
Send the details for this service →Direct to Mayfair · No chat required
Tell us what’s happening and where. We’ll help you work out the next step and what it costs.
No account needed. No payment to send an enquiry.
This is not an emergency response service. Do not wait for an online reply if there is an immediate risk to people or property.
How quotes and orders work →Example problem & repair approach
The problem: The cylinder leaks or the stored water does not heat properly.
How we can help: A suitable specialist checks the cylinder, heat source and controls, explains the fault and proposes the repair. Unvented systems require the relevant competence.
Follow the manufacturer’s maintenance requirements. Heatrae Sadia recommends annual servicing by a competent person for its appliances, including appropriate safety checks and a record of the work.
Not necessarily, but the cause needs specialist assessment. Do not block the discharge or assume it is harmless. Describe whether the flow is continuous or intermittent and whether water appears hot.
Include that detail and the cylinder model. The assessment needs the correct electrical and hot-water expertise; a full cylinder replacement should not be assumed before the fault is found.
Choose the closest problem
Start with the symptom, or choose a planned service. See what we check, repair options and what to tell us.
For leaking taps, toilets, showers and water-supply faults, use the plumbing pages. For a boiler, radiators or stored hot water, explore the heating options.
If the job involves more than one trade, include the complete list in your enquiry so the work can be planned together.