A cold radiator while others are warm is one of the easiest plumbing problems to diagnose — usually air at the top, or sludge at the bottom.
Safe steps you can take in the next 10 minutes — in order.
When to stop and call
If bleeding doesn't help, multiple radiators are cold, or you find the bottom is cold but the top is hot (sludge needs professional flushing).
Most cases of a radiator that won't heat in Wickwar homes come down to one of these.
Quick fix
£60
Typical
£180
Worst case
£650
TRV replacement: £80–£140. Power flush: £350–£650. New circulation pump: £220–£380.
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 Wickwar →Sometimes yes — the steps above cover the common DIY fixes. If bleeding doesn't help, multiple radiators are cold, or you find the bottom is cold but the top is hot (sludge needs professional flushing).
Around £180 for the typical repair (range £60–£650). TRV replacement: £80–£140. Power flush: £350–£650. New circulation pump: £220–£380.
For genuine emergencies in Wickwar we usually attend within 1–3 hours during weekdays. For non-urgent jobs we typically book within 2–5 working days.
Usually no. A radiator that won't heat 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 Wickwar and the wider South Gloucestershire area for fast plumbing and bathroom repairs.
Call 07927 593 585Real photos from completed jobs near Wickwar — the closest geographically and in property type to what we'd quote for you.



Free site visit anywhere in Wickwar and within 25 miles. Written quote inside 24 hours. Workmanship guaranteed in writing.
Next step: get a written quote. We travel to Wickwar (and anywhere within 25 miles of Yate) without a callout fee. Bring photos of the room if you have them — it saves a visit.
Boiler Installation jobs in Wickwar are scheduled around the realities below — postcode coverage, nearest roads, councils involved, and the named places we travel to from there.
South Gloucestershire Council — covering BS, GL postcode districts.
We reach Wickwar via M4, M5, M48 — and serve sites within roughly 25 miles of here.
Aztec West · Severnside
South Gloucestershire is reached via the M5 J14, typically 35 minutes from our base.