Boiler Replacement Pricing

Boiler Installation Pricing

Guide price bands for a straightforward swap. Your final quote follows your completed form and WhatsApp photos and may differ if the job needs extras. Radiators are available only with a boiler installation.

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A deposit secures your boiler, flue and key materials — the amount is confirmed with your quote. Balance payable on completion.

All installations covered by the manufacturer's warranty (up to 10 years depending on boiler) plus our workmanship guarantee details provided with your quote.

5 year warranty

IDEAL & VAILLANT

£1,800–2,300

Ideal Combi: £1,800–£2,300
Vaillant Combi: £2,200–£2,800

7 year warranty • Most Popular

IDEAL & VAILLANT

£2,100–2,700

Ideal Combi: £2,100–£2,700
Vaillant Combi: £2,500–£3,200

10 year warranty

IDEAL & VAILLANT

2,400–3,300

Ideal Combi: £2,400–£3,300
Vaillant Combi: £2,800–£3,800

Other Installations

System → Combi conversion: £4,000–£6,000+ (minimum £4,000) — tank removal, pipework, full install
System / heat-only replacement: £2,800–£4,500+
Boiler + unvented cylinder: £4,500–£9,500+

Installation Extras

Vertical flue: £250–£500
Condensate routing: £150–£350
Power flush: £300–£500
Gas main upgrade: £300–£800+
Smart controls: from £250

Radiators

Available only with boiler installation:

Labour: £80–£160
Rad + valves: £120–£220
Supply & fit: £220–£350
Designer rads: £350+