Leak sealer
Leak sealer for sale on Ireland's largest auction and classifieds sites
Fernox silicone paste for - silicone, - €7.39
Fernox external leak • Sealer 50ml use • Hot cold water - Free postage - New and Used
Fernox external leak • Sealer 50ml use • Hot cold water - Free postage - New and Used
Jenolite stop leak sealer - stop, - €13.99
Jenolite stop leak • Instant waterproof sealant • Hardwearing flexible formulation - Free postage - New and Used
Jenolite stop leak • Instant waterproof sealant • Hardwearing flexible formulation - Free postage - New and Used
Stop that leak spray black - leak, - €10.99
Black leak stop • Spray sealant 400ml • 500ml heavy duty - Free postage - New and Used
Black leak stop • Spray sealant 400ml • 500ml heavy duty - Free postage - New and Used
Fernox external leak - fernox, - €6.51
Fernox external leak • Sealer traditional style • Sealant use bathrooms - Free postage - New and Used
Fernox external leak • Sealer traditional style • Sealant use bathrooms - Free postage - New and Used
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White leak stop spray - leak, - €5.95
Mastic sealant 400ml • Quickly repair leaks • Protect surfaces thisleak - Free postage - New and Used
Mastic sealant 400ml • Quickly repair leaks • Protect surfaces thisleak - Free postage - New and Used
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48 listings · from €4.99 · avg €17.76
Browse 48 leak sealer listings currently in our index. Prices range from €4.99 to €259.99, with an average of €17.76. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about leak sealer →
Stop leak spray - stop, - €14.99
Two sizes available • Choose from 300ml • 400ml cans weight - Free postage - New and Used
Two sizes available • Choose from 300ml • 400ml cans weight - Free postage - New and Used
C500 leak sealer - sealer, concentrated - €259.99
Those which may • Cause pressure loss • Boiler breakdown once - Free postage - New and Used
Those which may • Cause pressure loss • Boiler breakdown once - Free postage - New and Used
White leak stop spray - 3, - €10.95
Mastic sealant 400ml • Ideal roof gutter • Pipe outdoor surfaces - Free postage - New and Used
Mastic sealant 400ml • Ideal roof gutter • Pipe outdoor surfaces - Free postage - New and Used
Fernox external leak - fernox, ls-x - €7.29
Fernox external leak • Sealer 50ml pipe • Fitting seal leaks - Free postage - New and Used
Fernox external leak • Sealer 50ml pipe • Fitting seal leaks - Free postage - New and Used
Air con sealer stop leak - stop, - €22.99
Stop leak sealer • Stp pro super • Seal 1234yf air - Free postage - New and Used
Stop leak sealer • Stp pro super • Seal 1234yf air - Free postage - New and Used
Lucas engine oil - engine, leak - €10.38
Lucas engine oil • Stop leak seal • Sealer 946ml additive - Free postage - New and Used
Lucas engine oil • Stop leak seal • Sealer 946ml additive - Free postage - New and Used
Adey external leak - external, - €10.20
Fully wras approved • Safe use drinking • Water - Free postage - New and Used
Fully wras approved • Safe use drinking • Water - Free postage - New and Used
Prokleen instant waterproof - prokleen, - €15.95
Super easy use • Provides watertight seal • Variety surfaces whether - Free postage - New and Used
Super easy use • Provides watertight seal • Variety surfaces whether - Free postage - New and Used
Mypond ms300 marine sealant - mypond, - €15.99
Fish safe formula • Aquatic life ensure • Our pond sealer - Free postage - New and Used
Fish safe formula • Aquatic life ensure • Our pond sealer - Free postage - New and Used
Ct1 miracle seal sealant for - ct1, - €69.95
Miracle seal revolutionary • Scientifically created product • Cure all water - Free postage - New and Used
Miracle seal revolutionary • Scientifically created product • Cure all water - Free postage - New and Used
Concentrated leak sealer - concentrated, - €7.49
Leak sealer • Boiler central heating • System 500ml c500 - Free postage - New and Used
Leak sealer • Boiler central heating • System 500ml c500 - Free postage - New and Used
Stormdry liquid rubber leak - liquid, - €18.99
Gutters roofs more • Quick leak repair • Gutter joints downpipes - Free postage - New and Used
Gutters roofs more • Quick leak repair • Gutter joints downpipes - Free postage - New and Used
White leak stop - x, - €8.95
Mastic sealant 400ml • Ideal roof gutter • Pipe outdoor surfaces - Free postage - New and Used
Mastic sealant 400ml • Ideal roof gutter • Pipe outdoor surfaces - Free postage - New and Used
Rapid pipe leak sealer - rapid, - €20.99
Rapid sealing action • Quickly seal weeping • Joints leaks pinholes - Free postage - New and Used
Rapid sealing action • Quickly seal weeping • Joints leaks pinholes - Free postage - New and Used
Leak repair waterproof sealant - leak, - €8.97
Spray seal sealant • White flexible durable • Coating covers cracks - Free postage - New and Used
Spray seal sealant • White flexible durable • Coating covers cracks - Free postage - New and Used
Leak repair spray gutter - leak, - €6.99
Stop that leak • Spray 400ml black • Window roof sealer - Free postage - New and Used
Stop that leak • Spray 400ml black • Window roof sealer - Free postage - New and Used
Stop that leak - leak, seal - €10.99
Spray seal mastic • Sealants instant leak • Waterproof sealant type - Free postage - New and Used
Spray seal mastic • Sealants instant leak • Waterproof sealant type - Free postage - New and Used
Leak stop mastic sealant - leak, - €13.00
Leak seal clear • You can simply • Clean area sealed - Free postage - New and Used
Leak seal clear • You can simply • Clean area sealed - Free postage - New and Used
Water leak window - water, - €10.99
Fast acting water • Leak sealer not • Seek seal avery - Free postage - New and Used
Fast acting water • Leak sealer not • Seek seal avery - Free postage - New and Used
Stop leak sealer spray clear - spray, | - €17.28
Ultimate waterproof sealant • Stop leak sealer • Spray provides advanced - Free postage - New and Used
Ultimate waterproof sealant • Stop leak sealer • Spray provides advanced - Free postage - New and Used
Leak repair waterproof sealant - waterproof, - €6.19
Fix leaks fast • Effectively this100ml waterproof • Sealant spray brush - Free postage - New and Used
Fix leaks fast • Effectively this100ml waterproof • Sealant spray brush - Free postage - New and Used
Black roof gutter sealant - black, - €8.95
Roof gutter sealant • Weight 450g type • Ideal roofs gutters - Free postage - New and Used
Roof gutter sealant • Weight 450g type • Ideal roofs gutters - Free postage - New and Used
Fernox jointing compound - fernox, - €7.29
Fernox jointing compound • External leak sealer • 50ml lsx high - Free postage - New and Used
Fernox jointing compound • External leak sealer • 50ml lsx high - Free postage - New and Used
Entity leak sealer 300ml - entity, - €16.15
Entity leak sealer • Professional central heating • Fix high performance - Free postage - New and Used
Entity leak sealer • Professional central heating • Fix high performance - Free postage - New and Used
Leak repair waterproof - repair, - €16.49
Instant leak sealing • Just spray let • Dry enjoy long - Free postage - New and Used
Instant leak sealing • Just spray let • Dry enjoy long - Free postage - New and Used
Concentrated leak sealer c500 - sealer, - €8.61
C500 central heating • Leak sealer our • Specially formula that - Free postage - New and Used
C500 central heating • Leak sealer our • Specially formula that - Free postage - New and Used
White spray seal leak fix - &, - €5.99
Leak stop spray • Seal pipe gutter • Roof mastic black - Free postage - New and Used
Leak stop spray • Seal pipe gutter • Roof mastic black - Free postage - New and Used
Fernox 56603 central - 56603, f4 - €23.95
Leak sealer • Fernox 56603 central • Liquid ideal solution - Free postage - New and Used
Leak sealer • Fernox 56603 central • Liquid ideal solution - Free postage - New and Used
Wynns engine stop - leak, sealant - €10.49
Wynns engine stop • Leak sealant car • Van maintenance oil - Free postage - New and Used
Wynns engine stop • Leak sealant car • Van maintenance oil - Free postage - New and Used
Super waterproof tape butyl - tape, - €8.59
Very easy use • Just peel off • Released film then - Free postage - New and Used
Very easy use • Just peel off • Released film then - Free postage - New and Used
Leak sealer spray - leak, | - €10.99
Stable maintains its • Effectiveness integrity even • Under harsh sunlight - Free postage - New and Used
Stable maintains its • Effectiveness integrity even • Under harsh sunlight - Free postage - New and Used
Adey external leak sealer - adey, - €4.99
Tube included all • Sealed - Free postage - New and Used
Tube included all • Sealed - Free postage - New and Used
Fernox external leak - fernox, - €5.45
Fernox external leak • Sealer 50ml pipe • Leaks plumbing systems - Free postage - New and Used
Fernox external leak • Sealer 50ml pipe • Leaks plumbing systems - Free postage - New and Used
Black leak repair spray - 2, - €10.95
Stop that leak • Spray 400ml black • Once dry coating - Free postage - New and Used
Stop that leak • Spray 400ml black • Once dry coating - Free postage - New and Used
Black leak repair - 3, x - €14.99
Black stop that • Leak spray 400ml • Waterproof paintable flexible - Free postage - New and Used
Black stop that • Leak spray 400ml • Waterproof paintable flexible - Free postage - New and Used
Waterproof paint seal - waterproof, fix - €7.98
Long lasting effect • Sealant waterproof efficient • Can penetrate into - Free postage - New and Used
Long lasting effect • Sealant waterproof efficient • Can penetrate into - Free postage - New and Used
Liquid rubber waterproof roof - liquid, - €23.99
Siramico coatings liquid • Rubber premium one • Coat instant waterproofing - Free postage - New and Used
Siramico coatings liquid • Rubber premium one • Coat instant waterproofing - Free postage - New and Used
Stop leak spray seal - leak, - €6.09
Say goodbye leaks • Cracks stop leak • Spray sealant fast - Free postage - New and Used
Say goodbye leaks • Cracks stop leak • Spray sealant fast - Free postage - New and Used
Lucas engine oil stop leak - engine, - €10.81
Put off inevitable • Will used early • You have leak - Free postage - New and Used
Put off inevitable • Will used early • You have leak - Free postage - New and Used
Leak stop seal - 2x, spray - €9.49
300ml per can • Cans supplied quickly • Easily repair cracks - Free postage - New and Used
300ml per can • Cans supplied quickly • Easily repair cracks - Free postage - New and Used
Leak sealer spray 400ml - -, - €10.99
Stable maintains its • Effectiveness integrity even • Under harsh sunlight - Free postage - New and Used
Stable maintains its • Effectiveness integrity even • Under harsh sunlight - Free postage - New and Used
White spray seal leak - spray, - €5.99
Leak stop spray • Seal pipe gutter • Roof mastic black - Free postage - New and Used
Leak stop spray • Seal pipe gutter • Roof mastic black - Free postage - New and Used
White mastic sealant 400ml - mastic, - €8.95
Mastic sealant 400ml • Ideal roof gutter • Pipe outdoor surfaces - Free postage - New and Used
Mastic sealant 400ml • Ideal roof gutter • Pipe outdoor surfaces - Free postage - New and Used
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Everything you need to know about leak sealer
Whether you are looking for a brand-new or second-hand leak sealer, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at €4.99, while premium listings can reach €259.99 — giving you a wide budget spread to work with. The average price of €17.76 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.