How do I replace a toilet?

Toilet replacement is a moderate DIY project that requires basic plumbing skills, but many homeowners prefer having a licensed plumber handle it to ensure proper installation and avoid potential water damage.

Replacing a toilet involves several key steps that must be done carefully. First, you'll need to shut off the water supply at the valve behind the toilet and completely drain the tank and bowl. Remove the old toilet by disconnecting the water supply line, unbolting it from the floor, and lifting it straight up - toilets are heavy (60-100 lbs) and awkward to maneuver, so having a helper is essential.

Proper preparation of the flange and wax ring is critical for preventing leaks. The toilet flange (the pipe connection in the floor) must be level with or slightly above the finished floor surface. If it's too low or damaged, it needs repair before installing the new toilet. A new wax ring creates the watertight seal between the toilet and the drain pipe - this must be positioned correctly on the first try, as repositioning the toilet can compromise the seal.

In Ottawa, toilet replacement typically costs $400-$800 when professionally installed, including the toilet and labor. The Ontario Building Code requires proper venting and drainage connections, and any modifications to plumbing lines require permits. If you're upgrading to a comfort-height toilet or moving the toilet location, professional installation is strongly recommended.

Installation challenges include ensuring the toilet sits level (shimming may be required), achieving proper bolt tension without cracking the porcelain, and confirming the wax ring creates a complete seal. Water damage from improper installation can be expensive to repair and may not be covered by insurance if installed incorrectly.

For a professional toilet installation with warranty coverage, request a quote from Ottawa Bathrooms - we handle everything from basic replacements to accessibility upgrades with comfort-height models.