How To Replace A Glass Shower Door Seal

- May 29, 2018-

How to Replace a Glass Shower Door Seal

    Step-by-step and video instructions for replacing a frameless glass shower door seal.

    The following information focuses on a hinged (pivoting) doors bottom seal — aka door sweep — aka door wipe, that keeps water in when the door is closed and wipes water into the shower when the door is opened. However, the same information can be applied to shower door seals that span the vertical edges and install the same way as the bottom seals shown.

    Tools required are very minimal: tape measure for measuring, and a hacksaw to cut the new sweep to exact length (universal seals normally come in common lengths, but not exact lengths for every door size).

    Replacing a Frameless Shower Door Seal

    The door sweep is a “wear and tear” item that needs regular replacement to prevent water leakage.

    1. Remove

    The seal may be difficult to remove if there is a large amount of mineral build-up present, but the seal is not attached with adhesives and should need no special tools.

    Starting from one end, peel the sweep off.

    Tip: Place a soft towel directly under the door and sweep to protect your hands if the sweep suddenly breaks loose; causing your hands to smack the floor.

    2. Measure

    Measure the glass door thickness and length for replacement sweep dimensions.

    3. Order

    Based on the existing seal and dimensions calculated in the Step 2, determine the type of seal and length of seal to order as a replacement.

    4. Cut

    • A hacksaw with a 32-TPI blade will produce a even cut. Use a utility knife to deburr after cutting.

    • A ratcheting PVC tubing cutter or pruning shear may work, but results are inconsistent.

    • Using a utility snip or scissors will crack the rigid PVC material and yield in an uneven cut.

    5. Clean

    Clean the door sweep area thoroughly before installing a new sweep.

    Note: Use the same removal, replacement, and glass cleaning steps to clean soap scum and mineral build-up on and around the sweep between full replacement.

    • To clean the glass, use any general purpose bathroom spray cleaner or glass cleaner, combined with a non-scratch scrub pad.

    • Use a glass razor scraper, combined with general purpose bathroom spray cleaner or glass cleaner to remove hardened mineral build-up on the glass door.

    • To clean the door sweep channel, use a grout brush or a non-scratch scrub pad (doesn’t apply to new sweep replacement).

    6. Install

    Starting on the hinge end, push the new sweep over the glass door in short sections.

    The firm, but flexible, sweep channel is slightly narrower than the actual glass thickness (this creates a tight pressure-fitted connection), so trying to push the whole sweep on at once, is impossible with just the use of hands.

    If a drip edge is part of the sweep, face it inwards to keep water within the shower.

    Additional Tips to Prevent Walk-in Shower Leaks

    • Point the shower head away from the shower door and corner pivot joints.

    • Use a bath mat to absorb any water that may escape the shower stall.

    • Inspect caulk joints regularly for deterioration.

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