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Boiler Components

Keep your heating system running smoothly with our full range of boiler spare parts and components. Whether you're replacing a faulty part or planning routine maintenance, we stock high-quality, genuine parts for all major boiler types and brands. From valves, pumps, thermostats, and expansion vessels to sensors, timers, and control boards, every item is selected for reliability, safety, and compatibility. Browse our collection for fast, dependable replacements and long-term system performance.

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Vaillant 45° Plume Elbows Black – Pair – 0020219551

Vaillant
Original price £43.66
Original price £43.66 - Original price £43.66
Original price £43.66
Current price £34.92
£34.92 - £34.92
Current price £34.92
In stock

The Vaillant 45° Plume Elbows (0020219551) are a pair of black plume management components designed for use with a compatible Vaillant flue system...

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Original price £43.66
Original price £43.66 - Original price £43.66
Original price £43.66
Current price £34.92
£34.92 - £34.92
Current price £34.92
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Vaillant 125mm Facade Flue Rain Collar - 0020042760

Vaillant
Original price £61.85
Original price £61.85 - Original price £61.85
Original price £61.85
Current price £44.50
£44.50 - £44.50
Current price £44.50
In stock

The Vaillant 125mm Facade Flue Rain Collar (0020042760) is a flue accessory designed for use with compatible Vaillant facade flue systems. Made fr...

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Original price £61.85
Original price £61.85 - Original price £61.85
Original price £61.85
Current price £44.50
£44.50 - £44.50
Current price £44.50
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Vaillant Pitched Roof Flashing 25-45° 8000037498 (LEAD FREE) REPLACES 303980

Vaillant
Original price £52.49 - Original price £52.49
Original price £52.49
£73.28
£73.28 - £73.28
Current price £73.28
In stock

Vaillant Pitched Roof Flashing 25-45° 303980 Overview The Vaillant Pitched Roof Flashing 25-45° 303980 is an essential roofing accessory design...

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Original price £52.49 - Original price £52.49
Original price £52.49
£73.28
£73.28 - £73.28
Current price £73.28

Vaillant VR 40 Multifunctional Module 2 – 0020017744

Vaillant
Original price £52.49
Original price £52.49 - Original price £52.49
Original price £52.49
Current price £41.99
£41.99 - £41.99
Current price £41.99
In stock

Vaillant VR 40 Multifunctional Module 2: Durable Solutions The Vaillant VR 40 Multifunctional Module 2 (part number 0020017744) is designed to ...

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Original price £52.49
Original price £52.49 - Original price £52.49
Original price £52.49
Current price £41.99
£41.99 - £41.99
Current price £41.99
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Vaillant 125mm Facade Flue Basic Conn Set 20042748

Vaillant
Original price £507.65
Original price £507.65 - Original price £507.65
Original price £507.65
Current price £332.63
£332.63 - £332.63
Current price £332.63
In stock

The Vaillant 125mm Facade Flue Basic Connector Set (20042748) is a flue system accessory listed within Vaillant's Domestic Flues and Flue Accessor...

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Original price £507.65
Original price £507.65 - Original price £507.65
Original price £507.65
Current price £332.63
£332.63 - £332.63
Current price £332.63
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Vaillant Standard Flue Horizontal Telescopic Terminal Kit DN 60/100 PP0020219518

Vaillant
Original price £182.95
Original price £182.95 - Original price £182.95
Original price £182.95
Current price £146.36
£146.36 - £146.36
Current price £146.36
In stock

Vaillant Standard Flue Horizontal Telescopic Terminal Kit DN 60/100 PP 0020219518 Overview The Vaillant Standard Flue Horizontal Telescopic Ter...

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Original price £182.95
Original price £182.95 - Original price £182.95
Original price £182.95
Current price £146.36
£146.36 - £146.36
Current price £146.36
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