Reversing Valve Replacement Cost — Heat Pump & Mini-Split (UK, 2026)
Estimated £220–£900 for a reversing valve replacement in the UK, depending on the HVAC system and the exact fault. Built from 4 sourced repair jobs across 1 HVAC type — each row keeps its own sources. Reviewed July 2026.
What a reversing valve replacement costs, by HVAC and fault Estimated
Each row is a real sourced repair job whose description matched this part. Parts and total are that job's own national range — follow the problem link to localize it to your area.
| HVAC | Problem | Repair | Parts | Total | DIY |
|---|---|---|---|---|---|
| Heat Pump | Not heating | Reversing valve replacement | £150–£350 | £300–£600 | Pro recommended |
| Heat Pump | Stuck in defrost / frozen outdoor unit | Reversing valve replacement (stuck mid-defrost) | £150–£350 | £300–£600 | Pro recommended |
| Heat Pump | Reversing valve replacement | Reversing valve replacement (full valve body) | £150–£350 | £300–£600 | Pro recommended |
| Heat Pump | Short cycling (turns on and off) | Pressure switch, defrost/reversing valve or control PCB replacement on the outdoor unit | £60–£430 | £220–£900 | Pro recommended |
Base: published rates from 10 UK repair companies · National base ranges — localize any figure on its linked problem page · Reviewed July 2026 · Estimated
Related HVAC cost guides
The full cost guide for each HVAC system a reversing valve replacement shows up in:
Estimated national ranges aggregated from the linked problem pages — no per-page localization is applied here. See the methodology for the localization method and named sources.
Reviewed by a Red Seal–certified appliance technician who also holds a Technical Safety BC gas ticket (Gas-C) and an ODS/halocarbon refrigerant ticket (CFC/HCFC/HFC).