Gas Safe registered · Booking installs this monthWhatsApp us
M3Boilers logoM3Boilers

Repairs

Boiler repairs & breakdowns

No heat, no hot water, leaking or flashing a fault code? We diagnose any make and model for a flat fee and carry the most common spares on the van.

Repair pricing

Diagnostic call-out

Deducted from the repair if you go ahead

£99 inc VAT

Typical repair

Parts and labour, most common faults

£120 – £320 inc VAT

Boiler service plan

Annual service, priority call-outs

£12/month inc VAT

All prices include VAT. Includes standard flue, fitting and system flush. Confirmed after a free survey.

Faults we fix every week

  • No hot water but heating works — diverter valve
  • Boiler locks out / EA, F28, E133 and similar fault codes
  • Losing pressure or leaking from the pressure relief pipe
  • Kettling, banging and gurgling from sludge in the system
  • Frozen condensate pipe in cold snaps
  • Faulty pump, fan, PCB or thermistor

Free quote

Get your price in 60 seconds

Step 1 / 5

60 second boiler quote

What can we help with?

Pick the option that fits — we'll tailor the next questions.

Frequently asked questions

How long does a boiler installation take?

A straight combi swap is usually a single day. Conversions, back boiler removals and system changes normally take two days.

Is the price on the website the price I pay?

The online figure is an indicative range inc VAT. Once we've done the free survey the written quote is fixed — we don't add extras afterwards.

Are you Gas Safe registered?

Yes. Every engineer is Gas Safe registered and every install is notified to Gas Safe and Building Control on your behalf.

Do you offer finance?

We can spread the cost of a new boiler — ask when you get your quote and we'll send over the options.

Call WhatsApp