London & Surrey
Boiler displaying an error code and not working.
- Diagnosis
- Fault traced to the boiler's PCB.
- Repair
- Replaced the PCB and got the boiler back up and running the same day.
Real Jobs, Real Results
Recent Jobs
A record of real repairs, servicing, and installations completed across London and Surrey.
Out in the Field
A look at real Hey Boiler jobs in progress across London and Surrey.
London & Surrey
Boiler wasn't working — discovered while the engineer was on-site for a gas safety certificate.
- Diagnosis
- Circulation pump had seized from lack of use.
- Repair
- Freed the seized pump and got the heating working again.
London & Surrey
Boiler needed a new expansion vessel and pressure relief valve.
- Repair
- Removed the boiler from the wall, fitted a new expansion vessel and PRV, and serviced it — all in around 2-2.5 hours.
London & Surrey
Customer wanted their old system boiler converted to a combi.
- Repair
- Converted the system boiler to a combi boiler.
Hayes · UB3
Boiler fault needed diagnosing and repairing.
- Repair
- Diagnosed and fixed the fault quickly.
Feltham · TW13
Needed a landlord gas safety certificate (CP12).
- Repair
- Carried out the gas safety inspection and issued the certificate promptly.
Worcester Bosch Greenstar 30i ErP
Feltham · TW14
Annual boiler service due.
- Repair
- Boiler service completed.
Tooting · SW17
Landlord gas safety inspection due.
- Repair
- Gas safety inspection carried out and certificate issued.
Tooting · SW17
Boiler pressure dropped to around 0.5–0.6 bar.
- Diagnosis
- Low pressure linked to the expansion vessel.
- Repair
- Expansion vessel checked and repaired, and the system checked for leaks with the necessary repairs carried out.
Wimbledon · SW19
Boiler leaking.
- Diagnosis
- The automatic air vent was causing the leak.
- Repair
- Automatic air vent replaced.
Glow-worm Energy 30c
Sunbury · TW16
Landlord gas safety inspection due.
- Repair
- Gas safety inspection carried out and certificate issued.
Potterton Performa 28
Stanwell · TW19
Landlord gas safety inspection due.
- Repair
- Gas safety inspection carried out and certificate issued.
Baxi Eco Compact 25 Combi
Harrow · HA1
Boiler installation.
- Repair
- New Baxi boiler installed.
Brixton · SW9
Heating not coming on.
- Diagnosis
- The circulation pump was not circulating.
- Repair
- Drained the heating system and lubricated the pump impeller.
Carshalton · SM5
Heating not coming on.
- Diagnosis
- The thermostat was faulty.
- Repair
- New thermostat installed.
Croydon · CR2
Heating stayed on when set to hot water only, and sometimes the heating did not work at all.
- Diagnosis
- Parts were needed, and the heating was coming on randomly.
- Repair
- Diverter valve fitted.
Worcester Bosch Greenstar 25i ErP
Croydon · CR0
Landlord gas safety inspection due.
- Repair
- Gas safety inspection carried out and certificate issued.
Ideal Atlantic Combi 24
Peckham · SE15
Landlord gas safety inspection due.
- Repair
- Gas safety inspection carried out and certificate issued.
Vaillant ecoTEC Plus 824
Willesden · NW10
Landlord gas safety inspection due.
- Repair
- Gas safety inspection carried out and certificate issued.
Vaillant ecoTEC Plus
Bayswater · W2
F75 fault code despite the pressure being good.
- Diagnosis
- The sensor was faulty.
- Repair
- Faulty sensor replaced, and the boiler then ran normally.
Vaillant ecoTEC Pro 24
Hayes · UB4
Boiler service and gas safety inspection due.
- Repair
- Boiler service and gas safety inspection completed.
Vaillant ecoFIT Pure 835
Tooting · SW17
Boiler installation.
- Repair
- New Vaillant boiler installed.
Worcester Bosch Greenstar 8000 style
Thornton Heath · CR7
Boiler service and gas safety inspection due.
- Repair
- Boiler service and gas safety inspection completed.
Bagshot · GU19
Boiler repeatedly going into fault/lockout due to no gas supply at the meter.
- Diagnosis
- Pressure was low and the boiler kept going into error.
- Repair
- Pressure topped up and the trap cleaned.
Isleworth · TW7
Electrical installation condition report (EICR) due.
- Repair
- EICR completed and report issued.
Main Eco Compact 25
South Harrow · HA2
Landlord gas safety inspection due.
- Repair
- Gas safety inspection carried out and certificate issued.
London & Surrey
Landlord needed CP12 gas safety checks across 4 rental properties.
- Repair
- Completed gas safety checks at all 4 properties — on time, thorough, and with boot coverings to protect carpets.
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