Koncore Plumbing & Heating
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    Koncore Plumbing & Heating
    Koncore Online Boiler Shop

    Your new boiler, fully installed

    Premium Vaillant, Worcester Bosch and Main boilers with fixed installed package pricing and Gas Safe installation across North London. Choose your boiler, customise your package, and book your install online.

    Gas Safe installed
    Fixed package price
    Manufacturer warranty
    No hidden chargesFree home or video surveyUp to 10-year warrantyCompare up to 3 boilers
    7 boilers
    Premium pick
    Worcester Bosch Greenstar 8000 30kW
    Worcester Bosch

    Greenstar 8000 30kW

    Combi
    30kW
    7 yr warranty

    Worcester Bosch's premium combi range with an extended 7-year warranty and advanced controls. For customers wanting top-tier reassurance.

    Installed package£3,510
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    Indicative spec — pending technical verification

    Most popular Worcester Bosch
    Worcester Bosch Greenstar 4000 30kW
    Worcester Bosch

    Greenstar 4000 30kW

    Combi
    30kW
    5 yr warranty

    A modern, efficient combi from Worcester Bosch with a clean design and strong warranty. Well suited to typical family homes.

    Installed package£2,810
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    Indicative spec — pending technical verification

    Most popular Vaillant
    Vaillant ecoTEC plus 832
    Vaillant

    ecoTEC plus 832

    Combi
    32kW
    5 yr warranty

    A high-performance combi for medium to larger homes with two-bathroom demand. Premium Vaillant build quality with an extended warranty.

    Installed package£3,080
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    Indicative spec — pending technical verification

    Best for homes with a cylinder
    Vaillant ecoTEC plus 612 System
    Vaillant

    ecoTEC plus 612 System

    System
    12kW
    5 yr warranty

    A system boiler for homes with a separate hot-water cylinder, ideal where multiple outlets are used at once. Pairs with a cylinder for stored hot water.

    Installed package£3,280
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    Indicative spec — pending technical verification

    Best value
    Main Main Compact 24
    Main

    Main Compact 24

    Combi
    24kW
    2 yr warranty

    A budget-friendly combi for smaller homes and flats. Straightforward, reliable heating without premium features.

    Installed package£2,140
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    Indicative spec — pending technical verification

    Best for smaller homes
    Vaillant ecoTEC pro 24
    Vaillant

    ecoTEC pro 24

    Combi
    24kW
    2 yr warranty

    A compact, reliable combi boiler suited to smaller homes and flats with standard hot-water demand. A dependable entry point into Vaillant's ecoTEC range.

    Installed package£2,380
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    Indicative spec — pending technical verification

    Vaillant ecoFIT pure 830
    Vaillant

    ecoFIT pure 830

    Combi
    30kW
    2 yr warranty

    A straightforward, value-led combi for medium homes. Simple controls and a compact footprint make it easy to install and maintain.

    Installed package£2,520
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    Indicative spec — pending technical verification

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