How To Fix A Wobbly Toilet

A wobbly toilet is bound to become a leaky wobbly toilet. Leaky toilets can cause a lot of damage to the flooring, floorboards, and into the foundation or room below. Therefore, it's important to fix a wobbly toilet as soon as the wobble is noticed to prevent leaking. A soft Wobble Wedge® toilet shim can fix a wobbly toilet quickly and prevent future leaking.

How to Fix a Wobbly Toilet with Wobble Wedges® Toilet Shims

  1. Loosen the toilet bolts slightly.
  2. Place a level across the toilet seat.
  3. Slip one or more Soft Wobble Wedges® under the back side of the toilet base, until it is both level and stable.
  4. Tighten the toilet bolts with a gentle tension until the bolts are snug and the toilet feels solid. Be careful not to over-tighten the bolts.
  5. Check the water supply line to ensure it is not leaking.
  6. If it is leaking, first try tightening it. If that does not stop the leak, replace it.


How To Fix a Leaky & Wobbly Toilet

Once a wobbly toilet starts leaking, the wax seal is already damaged and should be replaced as soon as possible.

Tools Required:

  • Toilet Flange Repair Kit
  • Wax Ring or Waxless Ring
  • Adjustable Wrench
  • Soft Wobble Wedges®
  • Bucket
  • Sponge or Rag Towel
  • Used Plastic Shopping Bag
  • New Water Supply Line (optional, but often worth replacing)


  1. Turn off water supply.
  2. Empty tank by flushing.
  3. Remove remaining water with sponge. Wring out over bucket.
  4. Remove water line supply from bottom of toilet tank.
  5. Remove nuts from two toilet bolts on side of toilet base.
  6. Pull toilet straight up over bolts and set aside.
  7. Remove old wax ring and clean the surrounding floor and toilet base.
  8. Fill a plastic bag with a rag and stuff it into the drain prevent anything falling into the drain and stop flow of sewer gas.
  9. Remove old toilet flange.
  10. Install new toilet flange with new bolts (don’t try to reuse old bolts).
  11. Install new wax ring into flange.
  12. Lift toilet over bolts and set down squarely.
  13. Thread nuts over bolts and hand-tighten.
  14. Locate the cause of toilet wobble by rocking toilet gently.
  15. Insert one or more Soft Wobble Wedges® near back of toilet base until the wobble is eliminated. One Wobble Wedge® on each side of base normally does the job.
  16. Tighten toilet flange bolts gently until bolt feels snug and toilet is stable.
  17. Trim flange bolts with a hacksaw if needed.
  18. Place bolt caps over bolts.
  19. Trim Soft Wobble Wedges® with one firm stroke of a sharp utility knife.
  20. Caulk toilet base if desired.