Radiator Repair London
Cold radiators, leaking valves, or uneven heating? Our London heating engineers diagnose and fix all radiator problems - same day, fixed price.
0800 123 4567Radiator repair in London costs £75–£200. Cold spots indicate sludge buildup (power flush needed) or air (bleed the radiator). A leaking radiator valve typically costs £80–£150 to replace.
Radiator Repair Cost London - 2026 Prices
| Job Type | Typical Cost | Time |
|---|---|---|
| Radiator bleed (air removal) | £40–£80 | 30 min |
| Radiator valve replacement | £80–£150 | 1–2 hours |
| Radiator removal & refitting | £100–£200 | 2–3 hours |
| Radiator replacement (new unit) | £150–£350 | 2–4 hours |
| TRV upgrade (all radiators) | £300–£600 | 4–6 hours |
| Power flush (sludge removal) | £300–£600 | 6–8 hours |
* Prices are estimates for London. Fixed price confirmed before work begins. £60 call-out fee.
Radiator Problems We Fix in London
Whether you have one cold radiator or a whole system that is underperforming, our heating engineers carry out a thorough diagnosis and fix the root cause - not just the symptom. We cover all London boroughs with same-day availability.
- Cold spots or radiator cold at the top
- Cold at the bottom - sludge build-up
- Radiator not heating at all
- Leaking radiator valve
- Noisy radiator (banging, gurgling, hissing)
- Radiator leaking from the body
- Thermostatic valve (TRV) stuck or faulty
- Uneven heat across the system
Radiator Bleeding
Quick fix for air-locked radiators that are cold at the top. Usually resolved in 10 minutes.
Power Flushing
High-velocity flush to remove sludge, magnetite, and scale - restoring full heating efficiency.
Valve Replacement
Faulty TRVs and lockshield valves replaced with quality parts and a labour warranty.
Additional Radiator Services
- Radiator Installation & Replacement
- Thermostatic Radiator Valve (TRV) Fitting
- System Balancing