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<p>We offer a delivery service direct to store, site or home.</p><p>Order by 9pm Weekdays and 4pm Weekends for next day delivery. Any orders placed after these cut off times will be delivered the following working day.</p><p>If you are collecting from a store, please await your "ready to collect" SMS before travelling. Home & site deliveries are between 8.30am and 6.30pm Monday - Saturday.</p><p>Geographical restrictions apply - For Northern Ireland, the Scottish Isles, The Isle Of Man and certain mainland post codes the delivery service is between 48-72 hours. Please visit delivery restrictions for <a href="/help/delivery">affected postcodes</a>.</p>

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Over 4,000 products available for delivery between 48hrs and 72hrs to Spain, Poland, Belgium, Netherlands, Austria and Sweden.

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Central Heating Leak Sealers

Fernox F4 Central Heating Leak Sealer 500ml

Flomasta  Central Heating Leak Sealer 500ml

Buy 500 ml Central Heating Leak Sealers at Screwfix.com. UK call centre ready for your call 24/7. Buy online & collect in hundreds of stores in as little as 1 minute! The UK’s leading retailer of trade tools and hardware. Over 40,000 products.

Fernox F4 Central Heating Leak Sealer 500ml (766PP)

Flomasta Central Heating Leak Sealer 500ml (6774R)