A quotation based on the fault
Share your boiler make, model, symptoms and fault code. Confirm the diagnostic scope and ask how labour, parts and any follow-up visit will be charged.
Support for your property
Homeowners
Investigate loss of heating or hot water, repeated pressure drops, leaks, noises and boiler lockouts.
Landlords & rented homes
Arrange fault diagnosis and repairs alongside the property’s servicing and gas-safety arrangements.
Businesses & workplaces
Requests assessed around boiler type, fuel and site requirements before the appropriate service is confirmed.
Managing agents
Share access arrangements, fault reports and equipment details to help plan work at managed properties.
Diagnosis before repair
Similar symptoms can have different causes. The engineer considers the boiler display, pressure, controls and condition before recommending work.
No heating or hot water
Check heating demand, controls and relevant components to distinguish a settings issue from a fault needing repair.
Repeated pressure loss
Investigate possible leaks, pressure-relief issues, expansion-vessel problems or other system faults.
Boiler leaks
Identify whether water is coming from seals, valves, components or connected pipework before recommending repair.
Error codes & lockouts
Interpret fault codes alongside targeted tests and the manufacturer’s technical information.
Noise & circulation faults
Investigate unusual sounds and relevant pumps, valves, sensors or circulation issues according to the symptoms.
Know what was found.
Understand the next step.
The engineer explains the likely cause and the recommended repair. Replacement components should reflect the confirmed fault and appliance condition.
If specialist parts, further work or replacement need consideration, the next step should be explained clearly. Keep repair records with your maintenance documents.
What to clarify after diagnosis
- The diagnosed fault and repair options
- Any replacement components recommended
- Agreed work and checks completed afterwards
- Further defects, parts or follow-up work needed
Accurate diagnosis. Clear repair advice.
- Fault finding before recommending replacement parts.
- Repair scope explained before work is authorised.
- Practical advice on further work or replacement.
From fault report to next steps
Review the symptoms
Discuss when the fault began, error codes and whether heating, hot water or both are affected.
Targeted diagnostics
Check the boiler and connected controls to identify the cause using appropriate diagnostic methods.
Agree the repair
Explain the findings, required components and repair options before work is authorised.
Repair, test & advise
Complete agreed work where practical, test afterwards and explain any further action or parts needed.
Prepare for your diagnostic visit
Useful details help the engineer understand the problem and plan the right diagnostic scope before attendance.
- Boiler make, model and displayed fault code
- When the fault started and how often it happens
- Whether heating, hot water or both are affected
- Recent changes, repairs and access arrangements
Different systems.
Careful planning.
Homes & rented properties
Explain how the fault affects heating and hot water, and share previous repair details. Repairs sit alongside planned servicing and relevant gas-safety checks.
- Record recurring symptoms and previous repairs
- Arrange access to the boiler and controls
- Retain repair records with gas-safety documents
Commercial & managed sites
Commercial systems may differ from domestic boilers. FRA Expert assesses the equipment and site requirements before confirming the appropriate service.
- Confirm boiler type, fuel and system details
- Match engineer competence to the equipment
- Plan access and disruption around site operations
Repair, service or replacement?
A repair addresses a specific fault. A service is planned maintenance. Replacement may be worth considering when faults recur, parts are obsolete or reliability has declined.
Age alone does not mean a boiler needs replacing. Compare repair cost, parts availability and the wider condition of the heating system before deciding.
Why choose FRA Expert?
FRA Expert focuses on identifying the fault, explaining the findings and recommending work suited to the appliance’s condition.
Gas boiler work requires an appropriately qualified Gas Safe registered engineer with the correct appliance competence. Check the relevant work categories before work begins.
Book boiler repair
& diagnostics in London
Tell FRA Expert your boiler make, model, fault code and symptoms. For urgent heating failures, ask about current availability.
Frequently Asked
Questions
What are the common signs that a boiler needs repair?
Loss of heating or hot water, recurring pressure drops, leaks, unusual noises, ignition faults and repeated lockouts can indicate a problem. Diagnosis is needed to confirm the cause.
Does an error code identify the faulty part?
Not always. The engineer interprets the code alongside targeted tests, appliance condition and the manufacturer’s technical information before recommending repairs.
Who should repair a gas boiler?
Gas work must be carried out by a suitably qualified Gas Safe registered engineer with the correct work category for the appliance. Do not remove boiler covers or attempt internal gas repairs yourself.
Can FRA Expert assess commercial boiler repairs?
Yes. Requests are assessed according to boiler type, fuel, system and site requirements. The relevant commercial engineer competence must be confirmed for the equipment.
Is a boiler service the same as a repair?
No. A repair addresses a specific fault or breakdown. A service is planned maintenance of the boiler’s condition, operation and safety. A serviced boiler can still develop faults.
Does one breakdown mean I need a replacement boiler?
Not necessarily. A professional diagnosis helps compare repair cost, parts availability, expected reliability and the wider condition of the heating system. Age alone does not decide.
When should I seek urgent help?
Suspected unsafe operation, serious leaks and heating loss in vulnerable circumstances need prompt assessment. If you suspect a gas escape, contact the National Gas Emergency Service rather than waiting for a routine repair booking.