Leveling a Toilet on Uneven Tile: A Comprehensive Guide
Encountering an uneven tile surface when installing or leveling a toilet can be a common yet challenging issue. However, with the right techniques and tools, you can achieve a perfectly level toilet that ensures comfort and proper functioning. This guide will walk you through the process, from diagnosis to execution, ensuring a professional and durable outcome.
Understanding the Problem: Why is My Toilet Uneven?
Uneven tiles can cause your toilet to wobble or sit at an angle, leading to discomfort and potential damage. This issue often arises due to improperly installed or cracked tiles, or simply because the subfloor is not perfectly level. Before you begin leveling your toilet, it's crucial to identify the cause of the unevenness to ensure your solution is effective and long-lasting.
Inspecting the Tiles
Begin by examining the tiles around the toilet. Look for cracks, loose tiles, or any signs of damage. If the tiles are the cause of the unevenness, you may need to repair or replace them before proceeding. If the tiles appear intact, the issue might lie with the subfloor.

Checking the Subfloor
To check the subfloor, carefully remove the toilet (if it's not already) and inspect the area beneath. A level or a long straight edge can help you identify any dips, humps, or unevenness in the subfloor. If the subfloor is the culprit, you'll need to address this issue before installing the toilet.
Gathering Your Tools and Materials
Before you start leveling your toilet, ensure you have the necessary tools and materials. Here's a list to help you prepare:
- Toilet leveling shims
- Crescent wrench
- Adjustable wrench
- Screwdriver (flathead and Phillips)
- Level
- Tape measure
- Caulk gun (optional, for touch-ups)
- Caulk (optional, for touch-ups)
Leveling the Toilet: Step-by-Step
Now that you've identified the cause of the unevenness and gathered your tools, it's time to level your toilet. Follow these steps for a professional result:

Preparation
Before you begin, ensure the area is clean and dry. If you've removed the toilet, make sure the bolts are still in place and that the wax ring is undamaged. If the wax ring is damaged, you'll need to replace it to ensure a proper seal.
Installing the Toilet Leveling Shims
Toilet leveling shims are designed to fit between the toilet's mounting bolts and the floor, allowing you to adjust the toilet's height and level. Start by placing the toilet back onto the bolts, ensuring the bolts are properly aligned with the mounting holes in the base of the toilet.
Using the level, measure the toilet's levelness from side to side and front to back. If the toilet is not level, you'll need to install shims to correct the unevenness. Place the shims under the low side or corner of the toilet, using the level to ensure you're adding the correct amount of shim to achieve a level toilet.
Securing the Toilet
Once the toilet is level, secure it by tightening the mounting bolts using a crescent wrench. Be careful not to overtighten, as this can cause the bolts to strip or the toilet to crack. Instead, tighten the bolts until they're snug, then use an adjustable wrench to give them a final, firm twist.
Testing the Level
After securing the toilet, double-check its levelness using the level. If the toilet is still not level, you may need to adjust the shims or, in rare cases, replace them with thicker or thinner ones to achieve the perfect level.
Caulking (Optional)
If you've had to remove the toilet to level it, you may notice that the caulk around the base of the toilet has been disturbed. To create a clean, finished look, apply a new bead of caulk around the base of the toilet using a caulk gun. Allow the caulk to dry completely before using the toilet.
Preventing Future Issues
To prevent future leveling issues, ensure your subfloor is in good condition before installing the toilet. If necessary, hire a professional to repair or replace any damaged or uneven sections of the subfloor. Additionally, regular maintenance and inspections can help you catch any potential issues early, saving you time and money in the long run.
In conclusion, leveling a toilet on uneven tile can be a straightforward process with the right knowledge and tools. By following this guide, you can achieve a perfectly level toilet that ensures comfort, proper functioning, and a professional, finished look.
More Details
22.09.2024 ... Remove toilet, clean floor and flange area well. Place down new closet bolts and wax ring, mix up some plaster of Paris and place on floor ...

21.11.2023 ... I use a pencil to trace the outline of the toilet on the tile. Then I put the Plaster of Paris in a gallon size Ziplock bag and cut a corner ...

22.05.2023 ... Donations-- https://paypal.com/paypalme/tfddonations Affiliate Disclaimer While we receive affiliate compensation for reviews/promotions on ...

18.07.2024 ... Sit down toilet on top of the flange, wax ring, and bolts, level it, then put nuts on and tighten it down. Trim the two layers of wax paper back ...

03.05.2017 ... It seems that the consensus is to use a silicon caulk to secure the toilet after shimming, not grout. Will the silicone keep the toilet secure enough and not ...

27.04.2009 ... Put masking tape around it. Then pull it up, mix up the same grout you used with the tiles ( thickly, not runny) or some plaster or paris to seat it in, and ...
/setting-a-toilet-2719046-hero-e636ac1bd8514a8cb5a38ffd99e6bde3.jpeg)
09.11.2019 ... Just pop it with a chisel and hammer but tile is generally not "level". Its flat, not level. When you shim the toilet, just cut your chims to ...

28.05.2019 ... If concrete you could use a self leveling mortar. I would try to maybe put down tile on the floor to get it level with the mortar. There's some ...

11.03.2024 ... To stabilize a toilet on uneven tile, use plastic shims to level the base without cracking. Avoid plaster or grout as they can crack or trap ...

07.10.2017 ... Every day plumbing repairs and installs featured on vids all while my son CB2 the apprentice learns the trade.

22.08.2008 ... I'm fitting a new low level toilet on an uneven tiled floor at home ... What if you want to to change the floor surface ( tile, laminate etc ).

Step 1 Use a level to determine where the toilet is unlevel. · Step 2 Remove the bolt caps and loosen the hex nuts. · Step 3 Wedge shims under the base of the ...

15.05.2010 ... Put the toilet into place and make a pencil mark on the floor around the base. Shim it up using plastic shims, which are generally available in ...

04.09.2024 ... Is your toilet rocking like a boat? ⛵ Learn how to fix it quickly and securely using a few simple tools and proper shims designed for the ...

17.08.2025 ... Lowering the toilet flange by 1.5” so that the bathroom floor is level with the floor outside. ... Photo by Javier M on April 21, 2026. May be an ...

04.11.2017 ... There's a sticky at the top of this section that tells you how to do it. Basically, you need to first set the toilet dry without wax, shim it, ...

24.03.2025 ... We can get that done for you right away. Feel free to reach out. Licensed and insured 801-631-9334|We can help! Moe's Plumbing & Drain LLC ...

Leave one straw full length and cut the other in half, place over the bolts,while lowering the toilet into place put the longer straw through one of the toilet ...

23.10.2023 ... The floor tile job was done very poorly, extremely unlevel and uneven. Had to shim the heck out of the toilet so it doesn't rock.
/installing-a-toilet-flange-extension-2719027-hero-2f91a50041ba41adaaddc5c03f320ea4.jpg?resize=1060%2C706&ssl=1)
20.05.2025 ... On the other hand, push plastic shims under the raised edge of the toilet base until it sits level on its own. Begin with a shim near the middle ...