Heating System Replacement Cost in South West

Estimated £13,230 – £20,694

Itemized cost breakdown
Item	Estimate
Outdoor condenser unit	£4,879
Furnace / heating unit	£1,726
Evaporator coil / air handler	£1,302
Refrigerant lineset & connections	£950
Installation labor	£4,329
Permit, disposal & startup	£950
Subtotal	£14,135
VAT (20%)	£2,827
Total inc. VAT	£16,962

What affects heating system replacement cost in South West

Heating System Replacement costs in South West differ from the national baseline mainly because of local labor rates. Construction-trades wages in the South West run about 11% above the GB mean (ONS ASHE), used here as a disclosed proxy for heating engineers; note the regional mean is right-skewed versus the median, so headline cost may reflect premium project clusters. Mild, wet, and Atlantic-exposed, so the heating season is long but rarely severe — ideal for a heat pump — yet the high off-gas-grid share in Cornwall and Devon makes the switch from oil/LPG to a heat pump especially common, and salt-laden coastal air calls for corrosion-resistant outdoor units. A heating-system replacement in the South West is notifiable under Building Regulations (Gas Safe or MCS sign-off), normally self-certified; Cornwall, Devon, and the Cotswolds carry extensive conservation and AONB designations where an external heat-pump unit can need prior consent. Heating-system work carries 20% VAT (UK-wide); domestic heat-pump installs are currently zero-rated separately — see header caveat.