HEKI 1, 3 and 4 Seal (with Ventilation) Dometic
Brand: Dometic SKU: SWLS2058

HEKI 1, 3 and 4 Seal (with Ventilation)

£27.99
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HEKI 1, 3 and 4 Seal (with Ventilation) – Restore Your Rooflight’s Performance

The HEKI 1, 3 and 4 Seal (with Ventilation) is a high-quality replacement seal designed specifically for Dometic HEKI rooflights. If your caravan or motorhome’s rooflight is showing signs of wear—such as drafts, water ingress, or rattling—this ventilated seal offers a fast, effective fix that restores comfort and weather protection.

Engineered to fit HEKI 1, HEKI 3, and HEKI 4 rooflight models, this seal features a built-in ventilation channel that allows a steady flow of fresh air while keeping rain and debris out. The result is a balanced indoor climate with improved insulation and reduced condensation—especially important for long trips and variable weather conditions.

Made from durable, UV-resistant rubber, this replacement rooflight seal is built to withstand harsh outdoor environments, including intense sunlight, wind, and moisture. It maintains a tight, flexible fit over time, ensuring long-lasting performance and minimal maintenance.

Installation is straightforward and can be done as a DIY project, saving you time and workshop costs. The seal provides a snug, leak-resistant fit, restoring your rooflight’s original performance without compromising ventilation.

Ideal for caravan and motorhome owners looking to upgrade or maintain their HEKI systems, this ventilated seal combines functionality, quality, and value in one essential product.

Keywords: HEKI 1 3 4 rooflight seal, HEKI seal with ventilation, caravan rooflight seal replacement, Dometic HEKI seal, motorhome roof window seal, ventilated rooflight seal, HEKI 4 gasket.

Pickup available at Southwest Leisure Spares

Usually ready in 4 hours

Pairs well with

All items come with full manufacturer guarantees for quality and performance

Shipping & Returns Policy

Returns Policy

If you're not completely satisfied with your order, you can return it to us within 14 days of receipt via Royal Mail. Though please note that we charge £5 for returns that are not faulty and the £5 will be deducted from your refund. Only damaged parts will have a full refund and return postage paid for.

To see our full Returns Policy click here

Shipping Methods & Rates

We ship to: United Kingdom, Guernsey, Jersey and Isle of Man

Shipping Method Cost Delivery Time
Standard 48 Hour Tracked £5.99 2 - 3 Business Days
Next Day Shipping* £9.99 1 Business Day
In-store Pickup** Free 4 Hours
Medium Items, Panels Under 1 Meter , Bumper Corners & Pods - 48 Hour Tracked £25 2 - 3 Business Days
Oversized and Heavy Items, Bumpers and Items over 1 Meter - 48 Hour Tracked £50 2 - 3 Business Days
Additional *Next day shipping is available when placed before 1pm Monday - Thursday. If an order is placed after 1pm Thursday, it will be delivered on Monday. Please note that not all products are available for next day shipping. If a product qualifies, this option will be shown at checkout.

**In-store Pickup times may vary and depend on our opening hours. Please wait until you have received confirmation your order is ready before travelling.


For shipping information regarding bespoke orders and products shipped directly from the supplier, please see below.

Fitting available at our NCC Approved Workshop

We supply genuine spare parts sourced directly from leading manufacturers, serving the caravan, motorhome, holiday park, leisure, and marine industries. Our close links with manufacturer technical teams give us access to hundreds of detailed diagrams, technical resources, and parts lists—ensuring you get the right component every time.


If your part requires professional fitting, our NCC Approved Workshop in Ilminster, Somerset is fully equipped to help. Simply get in touch to book an installation appointment, and our experienced technicians will ensure your parts are fitted safely, correctly, and in line with manufacturer specifications.

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