MagFlap – letterbox draught excluder

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draught excluders
4.33 out of 5 based on 3 customer ratings
(3 customer reviews)


One of the most common draughts in the home occurs through the letterbox, where gaps can causing heat to rapidly leave your property and let cold air in. This is where the durable, sleek and easy to fit Magflap can help shed those unwanted pounds off your bills.

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The perfect way to make letterbox draughts a thing of the past!

Traditional letterbox draught-proofing tends to use brushes. The issue with these is that they ‘grip’ whatever is put through them, jamming the letterbox open and allowing draughts to still enter the home.

The Magflap uses powerful magnets to keep the flap in an airtight position. The advantage of this is that once opened, it offers no resistance to whatever is posted through it, ensuring the mail falls to floor and the magnetic flap can fully close again. The British-made Magflap is incredibly simple, but one of the most innovative energy saving products out there.

DIY letterbox draught proofing

The Magflap is perfect for the DIY novice; installing it is really simple, requiring just a few screws! All installation instructions are included within the box.

By reducing draughts, the Magflap helps keep more heat in the home, meaning your heating system doesn’t have to work as hard to reach the required temperature, resulting in big energy savings!

Magflap Product Features

    • The Magflap is simple and easy to install
    • Internal aperture measurements of the Magflap: 281mm x 45mm
    • Outer dimensions: 341mm x 94mm
    • Energy conserving and Eco-friendly
    • Easy to clean
    • Perfect for all standard letterboxes
    • Slim, attractive design
    • High quality and durable plastic


Reviews (3)

  1. Rated 4 out of 5


    Great design, easy to fit, the magnetic flap ensures even in the windiest of weather that it stays shut.

  2. Rated 4 out of 5


    Neatly made, easy to fit product. Our letter box aperture is 6 cm high rather than the standard 4.5 cm so I had to omit the top central fixing screw but am hoping it still works using the other 5 screws. On a test posting it worked fine. Very pleased with this product

  3. Rated 5 out of 5


    Really solidly built. Very happy with this. Quick delivery too