How to fix a leaking tap

Fixing a leaking tap is a job that just about every home handyman has tried, but there’s usually more to it than just replacing the washer.Servicing a standard tap and replacing the washer and O-RingWhilst we recommend a leaking tap only be fixed by a qualified plumber (as incorrect servicing of a tap can cause irreversible damage to the tap body), it can in most cases be done by carefully following the steps below:

  1. Turn off the main water supply.
  2. Using an adjustable spanner, remove the tap cover, placing a cloth between tap and tool to prevent scratching.
  3. Use an open-ended spanner to unscrew the gland nut, and expose and remove the old washer.
  4. Use a reseating tool to shave the tap seat back to a flat, shiny surface.
  5. Replace the O-ring on the spindle and apply grease.
  6. Flush away filing debris and insert spindle with the new tap washer.
  7. Reassemble the tap (taking care not to overtighten the gland nut) and turn main water supply back on.


We always recommend you buy replacement tapware or fixtures from a recognised plumbing supplier, as their items will always be covered by warranty should any fault occur – unlike when you buy from a regular hardware store or chain.

Read more about how Plumbdog Perth can help you with your Leaking Taps or give us a call on 1300 884 146.