Cost to replace a low pressure system boiler with a high pressure combi?

Matt17

Geoff_W said:

I have a 12 year old Vaillant EcoTec boiler together with all the ancilliary equipment (hot water cylinder & thermostat, pump, 3 way diverter valve, header tank in the loft and another huge cold water tank for my Aqualisa shower). The boiler is serviced annually by a local plumbing firm who have always provided excellent service. Over the years various external parts have needed replacing (pump, diverter valve etc). Last year there was a problem on the hot water cylinder when two of the connections began leaking. When our plumber arrived he was hoping it was only leaking seals rather than a faulty tank, and he had been considering how to broach the subject of replacing the whole system if the tank was kaput. Fortunately the tank was OK so it only cost the price of a call out.

However, this has started a family discussion about whether to convert to a combi boiler and get rid of all the tanks in the loft as well as the hot water cylinder. Our plumbing firm has quoted £5,800 for a Vaillant EcoTec 832 Plus and £5,300 for an Ideal Logic 30 Max. Both boilers are rated at 30kW and come with a 10 year warranty. The price includes the removal and disposal of all the redundant equipment, upgrading the Aqualisa control unit to a high pressure version, uprating the gas supply pipe from the meter in the garage and the supply of a wireless programmable room thermostat.

Now I appreciate costs will have risen a lot over 12 years, but when the Vaillant was installed it only cost £2,000, albeit for the boiler replacement only.

Do people think the quoted costs are reasonable?

PS We are two retired people living in a 3 bedroom detached house.

Seems expensive to me. My mum had this done last December. BoxT quoted £4k but we used a local plumbing & heating firm and the cost was £3k that included removal of all redundant items (tanks etc) and fitting new combi boiler in a different location and a power flush. Where abouts are you located?