Mayfair · Heating & hot water
One radiator stays cold, heats unevenly or leaks
Get the fault understood, the next step explained and the repair underway.
Across London · Homes, landlords & managed properties · Your area: Blackheath
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.
Name the room and explain whether the radiator is completely cold, partly warm or leaking at a valve. Mayfair arranges an engineer to check the radiator, its valves and how it heats with the rest of the system.
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
Air, valve operation, flow balance and restrictions can affect how a radiator heats. The engineer needs the pattern across the home before recommending bleeding, balancing, a valve repair or further investigation. A cold radiator does not automatically justify a power flush.
A useful first enquiry
Avoid handling a hot radiator or forcing a stuck valve. If a leak is spreading, phone about urgent repair availability. If the whole home has lost heating, use the no-heating route and explain the wider problem.
Valve parts, draining and refilling, the number of radiators and access affect the quote. Balancing the system, replacing a radiator or cleaning it internally should be specifically agreed instead of assumed to be part of a small repair.
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: Water appears around the valve or its pipe connection.
How we can help: Identify the leaking component, carry out the agreed valve or connection repair and check the radiator for leaks and heat.
The pattern helps the assessment: trapped air, restricted flow or deposits can affect different parts of a radiator. Describe what is warm and what is cold; the pattern alone is not enough to prescribe a repair.
No. Valves, balance, circulation and the heat source may also need checking. Tell the engineer if bleeding has already been tried and whether it changed the problem.
It may be repairable or need a compatible replacement. Include a clear description or photo, the type of radiator and whether the leak is active so the visit and isolation can be planned.
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.