How to Replace a Toilet: A Step-by-Step Guide with Tips, Costs, and Eco-Friendly Options


Replacing a toilet might seem like a daunting task, but with the right instructions and guidance, it can be done quickly and efficiently. Whether you’re upgrading an outdated or broken toilet, or simply want to try a more environmentally-friendly option, this article provides a comprehensive resource on how to replace a toilet. In this article, we’ll explore everything from step-by-step instructions to video tutorials, dos and don’ts, cost breakdown, and eco-friendly options.

Step-by-Step Guide: Replacing a Toilet

Before starting, make sure you have all the necessary tools and materials, including a new toilet, a wax ring, a new supply line, a putty knife, and a socket wrench. Start by turning off the water supply and draining the tank and bowl. Next, remove the existing mounting bolts and clean up the area. Then, install the new wax ring onto the flange, set the new toilet onto the flange, and secure it with new mounting bolts. Connect the supply line and turn the water back on. Finally, test the new toilet by flushing it a few times and checking for any leaks.

Video Tutorial: How to Replace a Toilet

For those who prefer visual demonstrations, a video tutorial can be an invaluable resource. Check out this video by This Old House, which includes detailed instructions and clear visuals to guide you through the process. This video is especially useful for those who want to see each step in action before attempting it themselves.

Dos and Don’ts of Replacing a Toilet

Some common pitfalls to avoid include not turning off the water supply, not properly securing the new toilet to the flange, and not using a level to ensure that the toilet is stable and balanced. Make sure to follow all safety precautions and wear gloves and safety goggles, as well as be mindful of any electrical connections nearby. A few helpful tips to ensure success include double-checking your measurements, having a friend help you lift and position the new toilet, and using a plumber’s putty to help seal any gaps.

Cost Breakdown: Replacing a Toilet

The cost of replacing a toilet can vary depending on the type of toilet you choose, any tools or equipment needed, and whether or not you opt to hire a professional. On average, a new toilet can cost anywhere from $100-$500, with higher-end models costing up to $1,000 or more. Other costs to consider include the wax ring, the supply line, and any tools you might need. If you choose to hire a professional, expect to pay anywhere from $150-$500 for labor costs.

Environmentally-friendly Options for Replacing a Toilet

Low-flow or dual-flush toilets are environmentally-friendly options that can help reduce water consumption and lower water bills. These types of toilets typically use less than 1.6 gallons of water per flush, compared to traditional toilets which can use up to 7 gallons per flush. When selecting and installing these types of toilets, be mindful of any additional costs involved, such as upgrading the plumbing or purchasing a higher-priced model. However, the long-term savings in water bills can make up for any initial costs.


Replacing a toilet can seem like an intimidating task, but with the right guidance and resources, it can be done by almost anyone. In this article, we’ve covered everything you need to know – from step-by-step instructions and video tutorials to cost breakdowns and eco-friendly options. Make sure to follow all safety precautions, and don’t hesitate to reach out to a professional if you have any questions or concerns. Remember, replacing a toilet is a great way to upgrade your bathroom, save money and water, and help protect the environment.

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