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Leak Sealers

Shop premium pipe leak sealers from trusted brands at Toolstation, including Corgi Controls, Adey, Fernox and Sentinel. If you suspect your central heating system is leaking, use a leak sealer for fast and effective results.

What Are Leak Sealers Used For?



Leak seal sprays and liquids can be used to repair cracks in pipes or joints throughout your central heating system. They are fast-acting, with most products becoming effective between 1-24 hours after use. Since the product is applied to the system’s water, leak sealers are a quick fix for inaccessible or internal leaks.

Leak sealants offer long-lasting results, protecting your pipes from further leaks and maintaining consistent pressure throughout your central heating system. Browse our full range of leak prevention products here.
See also
Inhibitors & Protectors Inhibitors & Protectors
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Fernox
Fernox / Fernox F4 Central Heating Leak Sealer
20% Off
( 70 )
Product code: 83815
Fernox F4 Central Heating Leak Sealer Express 400ml
ex. VAT
Each

Seals small leaks and weeps which may cause pressu Read more

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Fernox
Fernox / Fernox F4 Central Heating Leak Sealer
20% Off
( 106 )
Product code: 92490
Fernox F4 Central Heating Leak Sealer 500ml
ex. VAT
Each

Seals small leaks and weeps which may cause pressu Read more

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Corgi Controls
Corgi Controls / Corgi Leak Sealer
( 21 )
Product code: 54401
Corgi Leak Sealer 1L
ex. VAT
Each

Cures small leaks from joints that are difficult t Read more

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Sentinel
Sentinel / Sentinel Leak Sealer
( 37 )
Product code: 87634
Sentinel Leak Sealer 1L
ex. VAT
Each

Ideal for sealing small leaks or weeping joints on Read more

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Corgi Controls
Corgi Controls / Corgi Leak Sealer
( 16 )
Product code: 47157
Corgi Leak Sealer 500ml Concentrate
ex. VAT
Each

Cures small leaks from joints that are difficult t Read more

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Adey
Adey / Adey MC4 Leak Sealer
Product code: 21721
Adey MC4 Leak Sealer 500ml
ex. VAT
Each

Infiltrates really hard to reach places and seals Read more

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