Central Heating Cleaner & Additives

Shop high-quality central heating additives from trusted brands like Fernox, Sentinel, Adey and Corgi Controls. At Toolstation, we stock a wide range of central heating cleaners to keep your system running smoothly.

Types of Central Heating Additives

Central heating cleaner removes corrosion and scale to improve the efficiency and longevity of both old and new systems. Regular cleaning can also help reduce boiler noise or use boiler silencer fluid after cleaning for longer-lasting results.

Choose a central heating inhibitor to protect newly cleaned systems against corrosion or limescale build-up whilst extending the life of your system and reducing fuel usage. If your boiler is leaking and losing pressure, try a central heating leak sealer to address the problem quickly.

Fernox Fernox Fernox / Fernox F2 Central Heating Boiler Noise Silencer Express 400ml
15% Off
( 16 )

£20.00 was £24.98

ex. VAT £16.67 Each

Product options Select from 1 option
Fernox Fernox / Fernox LS-X External Leak Sealer 50ml
( 240 )

£6.68

ex. VAT £5.57 Each

ADEY ADEY / Adey MC2 Noise Silencer 500ml
( 3 )

£22.14

ex. VAT £18.45 Each

ADEY ADEY / Adey MagnaClean Professional 1 Chemical Pack 22mm
( 44 )

£114.38

ex. VAT £95.32 Each

Corgi Controls Corgi Controls Corgi Controls / Corgi Universal Cleanser 1L
15% Off
( 26 )

Product code: 37524

Corgi Universal Cleanser 1L

£5.00 was £5.97

ex. VAT £4.17 Each

Product options Select from 1 option
Sentinel Sentinel Sentinel / Sentinel Eliminator Vortex300 Filter GRP 22mm Valves
10% Off
( 22 )

£71.97 was £79.97

ex. VAT £59.97 Each

ADEY ADEY / Adey MC3 Central Heating Cleaner 500ml
( 3 )

£16.48

ex. VAT £13.73 Each

Product options Select from 1 option
Corgi Controls Corgi Controls Corgi Controls / Corgi Leak Sealer 1L
5% Off
( 31 )

Product code: 54401

Corgi Leak Sealer 1L

£5.00 was £5.47

ex. VAT £4.17 Each

Product options Select from 1 option
ADEY ADEY / Adey MC1+ Central Heating Inhibitor Rapide 300ml
( 16 )

£23.48

ex. VAT £19.57 Each

Product options Select from 1 option
ADEY ADEY / Adey ProCheck® Refill Kit
( 1 )

Product code: 80459

Adey ProCheck® Refill Kit

£98.28

ex. VAT £81.90 Each

Product options Select from 1 option
Sentinel Sentinel / Sentinel Leak Sealer 1L
30% Off
( 55 )

Product code: 87634

Sentinel Leak Sealer 1L

£13.07 was £18.68

ex. VAT £10.89 Each

ADEY ADEY / Adey ProCheck® Test Kit

Product code: 49298

Adey ProCheck® Test Kit

£140.38

ex. VAT £116.98 Each

Product options Select from 1 option
Corgi Controls Corgi Controls Corgi Controls / Corgi Boiler Noise Silencer 1L
50% Off
( 10 )

£5.97 was £12.58

ex. VAT £4.97 Each

Corgi Controls Corgi Controls Corgi Controls / Corgi Leak Sealer 500ml Concentrate
15% Off
( 29 )

£4.00 was £4.97

ex. VAT £3.33 Each

Product options Select from 1 option
Sentinel Sentinel Sentinel / Sentinel Best Practice Pack - X800 Cleaner, X100 Inhibitor and Vortex300 Filter BPP-V300GRP22-GB
Save £15

£134.99 was £149.99

ex. VAT £134.99 Each

ADEY ADEY / Adey MC5 Rapid Flush Cleaner 500ml
( 3 )

£24.98 was £25.98

ex. VAT £20.82 Each

Flume Flume Flume / Flume Leak Sealer 1L

Product code: AE919

Flume Leak Sealer 1L

£11.99

ex. VAT £9.99 Each

Product options Select from 1 option
Flume Flume Flume / Flume System Silencer Concentrate 500ml

£5.99

ex. VAT £4.99 Each

Product options Select from 1 option
Flume Flume Flume / Flume System Silencer 1L
5% Off

Product code: AE916

Flume System Silencer 1L

£10.00 was £10.79

ex. VAT £10.00 Each

Product options Select from 1 option
Fernox Fernox / Fernox F2 Central Heating Boiler Noise Silencer 500ml
( 23 )

£25.46

ex. VAT £21.22 Each

Product options Select from 1 option
ADEY ADEY / Adey MC4 Leak Sealer 500ml

Product code: 21721

Adey MC4 Leak Sealer 500ml

£23.18

ex. VAT £19.32 Each

Sentinel Sentinel / Sentinel X300 Cleaner for New Systems 1L
25% Off
( 6 )

£15.39 was £21.98

ex. VAT £12.82 Each

Flume Flume Flume / Flume Leak Sealer 500ml Concentrate

£9.49

ex. VAT £7.91 Each

Product options Select from 1 option