XL 30mm Garage Door Seal Kits

Our XL 30mm threshold seal is the tallest, heaviest-duty seal we sell. It’s for gaps of up to 30mm, garages that flood in heavy rain, and doors on sloping drives where water runs towards the garage.

Each XL kit includes a 30mm high PVC seal, black heavy-duty adhesive sealant, fitting instructions and rubber gloves. The seal comes in the standard black and yellow, or in all-black for a less noticeable finish, in lengths from 2.21m (7’3″) to 6.17m (20’3″).

Because it’s taller, the 30mm seal holds back more standing water than the lower profiles while still letting cars drive over it.

Do I need 30mm? Choose it if the gap under your closed door is over 20mm, or if water regularly pools against the door.

Black or black and yellow? They’re the same seal. The yellow strip makes the threshold easier to see, while all-black suits a neater look.

Can I order a sample? Yes, a free 30mm sample is available so you can check the profile before you buy. You only need to pay for the postage.