Heat Exchangers & Pumps
Primary and secondary heat exchangers, circulation pumps and pump heads for all major boiler brands. Essential for restoring heating efficiency.
Check availabilityThe right part, on the shelf
We stock genuine and approved replacement parts for Baxi, Ideal, Keston, Potterton, Vaillant, Worcester Bosch and Glow-worm boilers. Whether you need a heat exchanger, pump, PCB, pressure relief valve or a simple seal kit — call ahead or come in to our Chesham counter and we'll find it fast.
PCBs & Control Boards
Printed circuit boards and control units for Baxi, Vaillant, Worcester Bosch and more. Sourced from approved suppliers to ensure safe, reliable operation.
Check availabilityValves & Pressure Relief
Gas valves, pressure relief valves, diverter valves and motorised valves. Correct pressure management is critical to boiler safety and longevity.
Check availabilitySeals, Gaskets & Service Kits
O-rings, fibre washers, combustion chamber seals and complete annual service kits. Keep your boiler running efficiently between major repairs.
Check availabilityNot sure which part you need?
Bring your boiler's model number and fault code to our Chesham counter. Gurpreet and the team know their way around every major boiler brand and can identify the right part quickly — no lengthy back-and-forth with a call centre.
We also carry oil boiler parts and can advise on annual service components. Call ahead to confirm stock before making the trip.
Trade counter
Mon–Fri: 09:00–17:00
Saturday & Sunday: Closed
01494 580033
Call to check part availability
sales@asbplumbheat.co.uk
Parts enquiries welcome
"Needed a very specific replacement part for a kitchen sink that is only available online at the major stores and wouldn't have been delivered for at least 5 days. With 5 minutes of entering the shop the very charming assistant found the exact part I needed. Excellent service thank you."
Need a part today?
Call ahead and we'll have it ready at the counter — 84 Broad Street, Chesham.