In most cases, a plumber is the best professional to install a new toilet. Here are a few things to look for when deciding which plumber to hire:

• Experience: Make sure the plumber you hire has plenty of experience installing the type of toilet you have. Ask if they know how to install one-piece, two-piece, wall-mounted or smart toilets. You can also search through their online reviews to get a sense of their experience. 

• Licensing: Hire a plumber who is licensed in your state. You can often verify their license number and status online. 

• Get price quotes: Gather cost estimates from several plumbers to help ensure you’re paying a fair price for your installation project.

• Ask about warranties: Find a plumber who offers a warranty for toilet replacement and installation for added peace of mind.

For more tips, visit Thumbtack’s Smart Hiring page. 

The national average cost to install a new toilet ranges from around $255 to $615,* according to Thumbtack data.

Here are a few factors that may affect the installation cost: 

• Type of toilet: For example, installing a one-piece toilet typically costs less than installing a two-piece toilet. Wall-mounted toilets also tend to cost more because they must connect to studs in the wall.

• Removing the old toilet: You might need to pay an additional fee to have someone remove your old toilet. Ask your plumber if removal is included in the cost. 

• Additional repair work: Your plumber might uncover some issues with your plumbing, flooring, caulking, drywall and more. Make sure you’re prepared for these additional costs by consulting your plumber before they start installing the toilet.

*Data on file at Thumbtack. For a personalized cost estimate, request a quote from a professional.

Here are several signs that indicate you need to consider replacing your toilet:

• Ugly stains and mineral buildup that you can’t remove

• Flushes not emptying the bowl

• Leaks causing floor damage

• Frequent repairs of working parts in the tank

• Cracked bowl or tank

• Constant water running

You might also consider getting a new toilet if you want to improve your bathroom’s appearance or take advantage of toilets with smart technology. 

A professional plumber can usually complete this project in four to six hours, if not sooner.

In most cases, the plumber will take the following steps to replace and install a new toilet: 

• Measure toilet rough-in: This involves measuring the distance between the bathroom wall behind your toilet and the center of the drainpipe to ensure your new toilet will fit. 

• Pre-work: This includes turning off the water supply and draining the toilet tank. 

• Removing the old toilet: The plumber will detach the toilet and remove the wax ring. Discuss with them beforehand if they will remove the toilet from your home or if you should make other arrangements to dispose of it. 

• Installing the new toilet: A plumber will typically clean the flange before carefully positioning the new toilet, securing it with bolts and attaching the tank. 

• Connect the water supply: Finally, they’ll reconnect the water supply and test the toilet for leaks and ensure it’s working properly.

If the plumber makes a mess, they should clean up the space, but it’s best to confirm beforehand that cleanup is part of their services. You should also discuss any repairs (leaks, flooring damage, drywall damage, etc.) they will take care of after the project is done.

Remember: The timeline for your project will vary depending on many factors. Always ask your pro to provide an estimate.

Replacing a toilet is not a typical DIY job for beginners, and it can be harder than it seems. When deciding between DIY-ing or hiring a pro for this project, keep in mind: 

• Pre-measurements: It’s extremely important that you get your measurements right before installing or replacing a toilet. Otherwise, you may experience complications. 

• Time: The process usually takes about four to six hours of focused, intense attention on getting everything right. 

• Potential mistakes: A mistake might cause leaks and water damage. You also need to prepare for other repairs if mistakes are made in your drywall or flooring.

• Weight: A toilet can weigh anywhere from around 60 to 120 pounds. Make sure you’re comfortable with lifting heavy objects before committing to DIY.

• Fragility: Dropping a porcelain toilet can result in chips and cracks. You’ll need to gently place it into its new position.

• Tools needed: For most toilet replacement projects, you’ll need a wrench, wax ring, bolts, hacksaw, screwdriver and various parts. If you don’t have everything you need, you’ll need to consider buying or renting these tools.

If you have any doubts about your ability to seamlessly replace your toilet, hire a pro to take care of it.