Exitex Replacement Door Threshold Rubber Seal gasket Black for MXS15/2 MXS15/56

Exitex 1.01.0357 Replacement Rubber Seal — Fits MXS15/2 & MXS15/56 Door Thresholds

Genuine Exitex 1.01.0357 replacement rubber seal for MXS15/2 & MXS15/56 door thresholds. 1m flexible black draught seal — restore your weatherproofing.

Exitex 1.01.0357 Replacement Rubber Seal is the direct-fit answer when the rubber on your MXS15/2 or MXS15/56 door threshold has perished, hardened, or torn — letting draughts and rainwater creep in beneath your door. Rather than replacing the whole threshold bar, you simply swap this 1m black rubber insert to restore a tight, watertight seal. Made from premium long-life flexible rubber, it compresses neatly against the door to block cold air, water, and debris. A quick, low-cost repair that brings your existing threshold straight back to full sealing efficiency.

This is the genuine Exitex component, manufactured to the exact profile of the MXS15 series channel so it seats correctly first time. The soft yet hard-wearing rubber is engineered for repeated compression and weather exposure, making it suitable for timber, uPVC, and composite door sets in both domestic and commercial settings.

Key Benefits for Door Threshold Repairs:

• Stops Draughts & Heat Loss – A perished threshold seal is a common source of cold air sneaking under your door. This replacement restores a firm seal against the door bottom, helping cut draughts and keep heating bills down through the colder months.
• Keeps Rainwater Out – As well as sealing against draughts, the seal helps channel water away and prevents it tracking under the door, protecting your flooring and threshold from moisture damage.
• Cheaper Than a Full Threshold Replacement – The MXS15 bar is designed so the rubber can be swapped on its own. There's no need to remove or buy a complete new threshold — just renew the worn seal for a fraction of the cost.
• Genuine Exitex Profile for a Proper Fit – Manufactured to match the MXS15/2 and MXS15/56 channel exactly, with a 5mm T-section that locates into the bar, so it slides in and seats correctly without gaps or guesswork.
• Trim-to-Fit Convenience – Supplied as a full 1m (1000mm) length that can be cut down to your exact door width with a sharp knife, making it suitable for a wide range of door openings.
• Simple DIY Installation – No specialist tools required. The old seal pulls out and the new one slides into the existing aluminium channel — a satisfying repair most homeowners can complete in minutes.
• Long-Life Weather-Resistant Rubber – Built to withstand UK weather and repeated door closures, so your repair lasts rather than perishing again within a season like cheaper alternatives.

Product Specifications:

• Brand: Exitex
• Product Code: 1.01.0357 (1.01.0357.1000.00)
• Compatibility: MXS15/2 and MXS15/56 door threshold systems
• Length: 1m (1000mm) — can be trimmed to size
• Overall Width: 17mm
• Bubble Height: 8.5mm
• Bottom T-Section Width: 5mm
• Material: Flexible long-life rubber
• Colour: Black
• Function: Replaceable exterior draught and weather seal; also aids water run-off from the door
• Installation: Slides into the existing aluminium threshold channel
• Suitable For: Timber, uPVC and composite door sets
• Applications: Door thresholds, domestic and commercial
• Weather Resistance: Yes — suitable for external use
• Condition: Brand New

Please check that your existing threshold is an MXS15/2 or MXS15/56 system before ordering, as this seal is profiled specifically to fit the MXS15 series channel. The 5mm T-section locates into the channel, so it's worth comparing this profile against your worn seal. If you're unsure which threshold you have, please contact us and we'll be happy to help you confirm.

Pro Tips:

Pro Tip: Before fitting, give the aluminium channel a quick clean to remove grit and old debris — a clear channel lets the 5mm T-section seat fully and grip properly. Slide the seal in from one end rather than pressing it down along its length, and leave it slightly long, then trim flush once it's fully seated for a neat, gap-free finish.

Package Contents:

• 1 × Exitex 1.01.0357 Replacement Rubber Seal — 1m Length

Frequently Asked Questions:

Will this seal fit my door threshold?
This is a genuine Exitex replacement profiled to fit the MXS15/2 and MXS15/56 threshold systems specifically, with a 5mm T-section that locates into the channel, a 17mm overall width and an 8.5mm bubble height. It slides into the existing aluminium channel on those bars. If your threshold is a different make or model, this seal may not seat correctly — please compare the profile against your old seal or get in touch and we'll help you identify it.

How do I replace the old seal?
Simply pull the perished seal out of the threshold channel, clean out any grit, then slide the new 1m rubber seal in from one end. No tools beyond a knife for trimming are needed, and most people complete the job in a few minutes.

Can I cut it down to fit a narrower door?
Yes. The seal is supplied as a full 1m (1000mm) length and can be trimmed to your exact door width with a sharp knife. Measure your threshold first and cut slightly long, then trim flush once fitted.

Will it work on a composite or uPVC door?
Yes. Because it fits the threshold bar rather than the door itself, the seal works equally well with timber, uPVC, and composite doors fitted to an MXS15/2 or MXS15/56 threshold.

Why Choose the Exitex 1.01.0357 Replacement Seal?

When a threshold seal perishes, the smart repair is to renew the rubber — not the whole bar. This genuine Exitex 1.01.0357 seal is made to the exact MXS15 profile from durable long-life rubber, so you get a proper watertight, draught-free seal that lasts, rather than a generic strip that perishes again within a season. It's a low-cost, high-impact fix that protects your home from draughts, water ingress, and unnecessary heat loss.

With over 30 years supplying door and window hardware, JCP Hardware stocks the genuine replacement parts you need to get the job done right first time. Order with confidence knowing you're fitting the correct profile for your MXS15 threshold.