Replacing your old toilet might seem daunting, but it's easier than you think when broken into steps. With prices ranging from $100 to $1,000, choosing the right model is key. Whether you’re updating for aesthetics or efficiency, here’s how to select and install a toilet that fits your needs.

Choosing the Right Toilet for Your Bathroom

Not all toilets are created equal. The first thing you’ll notice when shopping is the variety of shapes, sizes, and flushing mechanisms. Start by measuring the rough-in distance, the space between the wall behind the toilet and the center of the drainpipe. Standard measurements are 12 inches, but older homes may have 10 or 14-inch rough-ins.

Pro tip: Bring your measurements to the store to avoid buying a model that won’t fit.

Toilet bowl shape matters too. Round bowls, like the budget-friendly American Standard Cadet 3 ($110-$200), save space while elongated bowls, such as the Kohler Cimarron ($250-$400), offer more comfort. If you’re looking for eco-friendly options, dual-flush toilets can save up to 30% more water than traditional models. Models like the Toto Drake II ($300-$500) are worth considering. Don’t forget to check for ADA compliance if accessibility is a concern.

Learn more about home insulation options to improve your overall bathroom efficiency.

Tools and Materials Needed

Before starting, gather all the necessary tools and materials. You’ll need:

  • Adjustable wrench
  • Bucket or sponge
  • Plunger
  • Wax ring (approximately $5-$10)
  • Toilet bolts and caps ($4-$8)
  • Level
  • Hacksaw (if trimming bolts)

Many toilets come with installation kits, but double-check to ensure you have everything. The wax ring, which seals the base to the drainpipe, should always be replaced during installation. If your bathroom floor is uneven, you may also need plastic shims ($2-$5).

If you don’t own a hacksaw, consider renting one. Most hardware stores charge less than $10 per day.

The tools you’ll use here are similar to what’s needed for basic electrical wiring projects, so investing in quality equipment is worth it.

Step-by-Step Installation Process

Step 1: Remove the Old Toilet

Shut off the water supply at the valve near the base of the toilet. Flush to empty the tank, then use a sponge or bucket to remove any remaining water. Unscrew the bolts securing the toilet to the floor and disconnect the water supply line. Carefully lift the toilet and set it aside. If it’s heavy, get someone to help.

Tip: Place an old towel or newspaper under the toilet to catch any residual water and prevent floor damage.

Scrape off the old wax ring using a putty knife. Clean the flange thoroughly. If your flange is damaged, replace it before proceeding. A new flange kit costs between $10 and $50.

Step 2: Install the New Wax Ring

Turn the new toilet upside down and press the wax ring onto the outlet underneath. Position the toilet over the flange, aligning the holes with the bolts. Slowly lower the toilet, ensuring the wax ring seats properly to prevent leaks.

Push down firmly to secure the seal, but don’t overtighten the bolts. Use a level to confirm the toilet is even. Tighten the bolts just enough to stabilize, then trim any excess bolt length with a hacksaw.

Step 3: Connect the Water Supply

Attach the water supply line to the toilet tank. Hand-tighten the nut, then use a wrench to secure it. Open the water valve slowly and check for leaks. If you notice any dripping, tighten the connections slightly until they stop.

Fill the tank and test the flush mechanism. If the toilet wobbles, use plastic shims to balance it. Install the bolt caps for a clean finish.

If water leaks persist, the wax ring may not be sealed correctly. Remove the toilet and try again.

For more tips on sealing connections, read our guide to caulking and sealing.

Step 4: Final Touches

Once the toilet is securely installed, you can add finishing touches like a new toilet seat or decorative hardware. Some models, like the Kohler Veil, even offer built-in bidets and automatic flushing for added convenience.

Consider pairing your new toilet with water-saving fixtures like low-flow showerheads or faucets to further reduce household water usage. According to the EPA, an efficient toilet can save up to 13,000 gallons per year.

FAQ

How much does a professional toilet installation cost?

Hiring a plumber for toilet installation typically costs $150 to $300, depending on your location and the complexity of the job. DIY installation can save you this expense, provided you have the necessary tools.

What’s the difference between single-flush and dual-flush toilets?

Single-flush toilets use the same amount of water for all flushes, usually 1.6 gallons per flush. Dual-flush toilets, such as the American Standard H2Option ($300-$450), offer separate flush options for liquid and solid waste, using 1.1 gallons for liquids and 1.6 gallons for solids.

Can I install a toilet without professional help?

Yes, most toilets are designed for DIY installation. If you’re comfortable using basic tools like a wrench and a hacksaw, you can save up to $300 by doing it yourself. Just follow the manufacturer’s instructions and use a new wax ring.

How long does a toilet last?

A standard toilet lasts 15 to 20 years with proper maintenance. Models like the Toto Ultramax, which come with durable ceramic finishes, may last even longer. Regular cleaning and checking for leaks can extend the lifespan.

What’s the best way to unclog a toilet?

Start with a plunger, which costs $10-$20. If that doesn’t work, try a plumber’s snake ($20-$50). For stubborn clogs, use a chemical drain cleaner like Liquid-Plumr ($7-$15), but avoid overuse as it can damage pipes.