A boiler that won't fire usually shows a fault code or a flashing light. The fix depends entirely on the code — and most can be diagnosed before a callout.
Safe steps you can take in the next 10 minutes — in order.
When to stop and call
Any fault code starting with E, F, or specific numbers your manufacturer says require an engineer. Always when there's a smell of gas — call National Gas first on 0800 111 999.
Most cases of a boiler that won't fire in Selsley homes come down to one of these.
Quick fix
£110
Typical
£260
Worst case
£700
Pressure or condensate fix: £90–£140. Diverter or expansion vessel: £180–£320. PCB or heat exchanger: £400+.
The service that fixes this
Gas Safe registered boiler installation and replacement — energy-efficient systems from Worcester Bosch, Vaillant, and Ideal with manufacturer warranties.
See boiler installation in Selsley →Sometimes yes — the steps above cover the common DIY fixes. Any fault code starting with E, F, or specific numbers your manufacturer says require an engineer. Always when there's a smell of gas — call National Gas first on 0800 111 999.
Around £260 for the typical repair (range £110–£700). Pressure or condensate fix: £90–£140. Diverter or expansion vessel: £180–£320. PCB or heat exchanger: £400+.
For genuine emergencies in Selsley we usually attend within 1–3 hours during weekdays. For non-urgent jobs we typically book within 2–5 working days.
Usually no. A boiler that won't fire can normally wait until the next working day, which keeps the cost down. Genuine emergencies are flooding, no water at all, or gas smells.
We cover Selsley and the wider Gloucestershire area for fast plumbing and bathroom repairs.
Call 07927 593 585Nothing AI-rendered, nothing stock — these are jobs we've delivered in and around Gloucestershire.



5.0 stars across 34 reviews. Local team. Fully insured. Workmanship guarantee. We're 20 minutes from Selsley, so we're not booking and dropping.
If you're weighing up boiler installation in the GL5 postcode area, the short version is: we cover Selsley from a base reachable in minutes via A46, we quote in writing, and we don't subcontract the trades. Send the postcode and we'll handle the rest.
Boiler Installation jobs in Selsley are scheduled around the realities below — postcode coverage, nearest roads, councils involved, and the named places we travel to from there.
Stroud District Council — covering GL5, GL6, GL10 postcode districts.
We reach Selsley via A46, A419, M5 J13 — and serve sites within roughly 15 miles of here.
Stonehouse Industrial Estate · Bath Road Trading Estate
Selsley is a Stroud neighbourhood — stroud's five valleys means steep, narrow lanes — for hillside properties we sometimes need to barrow materials from the nearest turning point.