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 Hardwicke 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 Hardwicke →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 Hardwicke 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 Hardwicke and the wider Gloucestershire area for fast plumbing and bathroom repairs.
Call 07927 593 585A small sample of Gloucestershire work. Every job here was managed by the same team that would handle your Hardwicke project.



Free site visit anywhere in Hardwicke and within 20 miles. Written quote inside 24 hours. Workmanship guaranteed in writing.
We don't try to be everything to everyone. Boiler Installation within 20 miles of Gloucester is our patch, and we know it well enough to spot most quirks before stripping out. That's why our quotes stick.
Boiler Installation jobs in Hardwicke are scheduled around the realities below — postcode coverage, nearest roads, councils involved, and the named places we travel to from there.
Gloucester City Council — covering GL1, GL2, GL3, GL4 postcode districts.
We reach Hardwicke via M5 J11, M5 J11a, M5 J12 — and serve sites within roughly 20 miles of here.
Gloucester Quays · Gloucester Business Park (Brockworth) · Waterwells Business Park · Quedgeley West Business Park
Hardwicke is a Gloucester neighbourhood — gloucester city centre has restricted-access streets — we plan deliveries around the one-way system and use trade parking off westgate.