Dedicated to keeping you watertight & protected.

The Seal Extrusion Company is a British-run business with over 35 years of industry experience. We are a leading manufacturer and supplier of trims, seals, rubber sections, and specialist rubber products.

Our mission is simple: to keep your vehicles watertight, protected, and built to last.

Our dedicated team is committed to delivering the highest level of service, ensuring your requirements are met with quality, reliability, and expertise you can trust.

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Motorhome & Caravans

Replacement Trims

We stock a wide range of products for caravans and motorhomes, including replacement door seals, window seals, pop-top roof seals, and more — helping you keep your vehicle secure, weatherproof, and road-ready.

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Marine Products

Watertight Seals built to last.

We stock a wide range of marine products, including Double D fenders, engine mounts, and edge trims — designed to keep your vessel protected, secure, and watertight for years to come.

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Automotive

Car Restoration

With over 100 products ready to ship — from sliding window edge trims to boot seals — we offer a comprehensive range to help you restore, protect, and maintain your car or van.

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Can't find what you're looking for?

Bespoke Trims

Get in contact with us via our sales team or through our bespoke enquiry form.

Please provide us with a photo of the trim and measurements so that we can help you find the perfect replacement trim.

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  • Rest in Peace to Our Nick

    Rest in Peace to Our Nick

    It is with great sadness that I share the passing of our much-loved colleague, family member, father and grandfather, Nick Salt, who passed away peacefully in his sleep on Saturday...

    Rest in Peace to Our Nick

    It is with great sadness that I share the passing of our much-loved colleague, family member, father and grandfather, Nick Salt, who passed away peacefully in his sleep on Saturday...

  • Marine Bumpers: Protecting Vessels and Infrastructure

    Marine Bumpers: Protecting Vessels and Infrastr...

    Marine bumpers are essential for protecting vessels, docks, and harbours from impact damage. Whether during docking or in rough conditions, bumpers absorb energy and minimise structural stress. High-quality marine bumpers...

    Marine Bumpers: Protecting Vessels and Infrastr...

    Marine bumpers are essential for protecting vessels, docks, and harbours from impact damage. Whether during docking or in rough conditions, bumpers absorb energy and minimise structural stress. High-quality marine bumpers...

  • Why DD Fenders Are a Smart Upgrade for Your Boat

    Why DD Fenders Are a Smart Upgrade for Your Boat

    When it comes to protecting your boat during docking, the right fender can make all the difference. If you’re still relying on basic or worn-out protection, upgrading to DD fenders...

    Why DD Fenders Are a Smart Upgrade for Your Boat

    When it comes to protecting your boat during docking, the right fender can make all the difference. If you’re still relying on basic or worn-out protection, upgrading to DD fenders...

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Motohome & Caravans

Our range includes high-quality windscreen mouldings and rubbers, clips, adhesives and tapes, professional fitting tools, universal as well as cutting wire blades, and essential fitting accessories — everything you need for motorhome renovations.

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