How To Install A New Toilet Yourself

Whether you've moved into a new house and want to replace the old toilets, or you just want to upgrade your commode, you can install them yourself with just a few tools and some simple instructions. The only downside of installing a toilet yourself is the heavy lifting. If you can lift a bit of heavy weight, you shouldn't have a problem. See below for instructions on how to install your own toilet.

Tools And Supplies Needed For The Job:

  • New toilet (look for one that uses less water)
  • Wax ring
  • Wire brush
  • New supply line (optional)
  • Bolts, washers, nuts and caps (most times these come with the toilet)
  • Pipe wrench
  • Saw
  • Screwdriver/drill
  • Level
  • Knife
  • Bucket
  • Towels/rags


  1. First, you'll need to take out your old toilet. To do this, shut off the water supply at the back of the toilet. Flush out as much water from the toilet as you can, and drain the holding tank of water, by taking the bolts off of the tank and allowing the water to drain into your bucket.
  2. Once you remove as much water as you can, you can begin to separate the tank from the toilet base. This will make it easier to carry out of your house. Take the nuts and washers off of the toilet base and remove the base from the floor.
  3. To keep smells from coming into your bathroom, stuff a rag into the soil pipe in your floor. 
  4. Remove the old wax ring using your knife, putty knife, or a screw driver. Remove your rag from the pipe, and then replace the old wax ring with the new one you purchased. Replace the rag in the pipe until you are ready to set the new toilet in place.
  5. Take your toilet out of it's box and be sure you have all of the parts needed. Begin to assemble your new toilet by attaching the tank to the toilet base. Follow the assembly directions for your new toilet.
  6. Add your floor bolts and be sure they are lined up properly with your new toilet assembly.
  7. Remove the rag from the soil pipe and set your toilet in place with the floor bolts. Press lightly to set it in place on your wax ring. Be sure your toilet is level.
  8. Using your nuts and washers, tighten the nuts in place with a wrench to secure your toilet. Be sure not to tighten too much, as you can crack your toilet.
  9. With your saw, cut the excess height of your bolts, and set your bolt caps in place.
  10. Add your new seat and lid using your toilet manufacturer directions.
  11. Finally, attach your supply line to your tank. You can use your old line if it's in good shape, or use a new one.
  12. Turn on your water supply and look for leaks. Be sure to flush a few times to get air out of your line.

Installing your new toilet is fairly simple to do. If you aren't too keen on installing one yourself, you can contact your local plumber for help.