Solving the Issue: Easy Fixes for a Toilet Flange Too High

Are you dealing with a toilet flange that is too high ? If so, you’re not alone. Many homeowners encounter this problem, and it can be quite frustrating .

A toilet flange is a crucial component that connects the toilet to the drainpipe and helps maintain a proper seal. However, when the toilet flange is too high, it can lead to issues such as leaks, unstable toilets, and difficulty in properly sealing the toilet to the floor. In this article, we will explore the reasons why a high toilet flange is problematic and provide you with three effective solutions to fix this issue.

Whether you’re a DIY enthusiast or looking for professional assistance, we have you covered. Stick with us to learn how to tackle this common plumbing problem and prevent it from happening in the future. So, let’s dive in and discover the best ways to address a toilet flange that is too high.

Summary in three points

  • Understanding the Problem: Toilet Flange Too High – Explains what a toilet flange is. – Describes the issues caused by a high toilet flange.
  • 3 Effective Solutions for a Toilet Flange That Is Too High – Provides three solutions: filling the gap with plywood, grout, or cement. – Suggests raising the bathroom floor as an alternative solution. – Mentions replacing the toilet flange as another option.
  • Step-by-Step Guide to Fix a High Toilet Flange – Lists the tools needed for the repair. – Outlines the preparation and process for fixing the high toilet flange.
  • Professional Assistance: When to Call a Plumber – Discusses when it is appropriate to seek professional help.
  • Preventing a High Toilet Flange: Tips and Tricks – Offers advice on how to prevent a high toilet flange from occurring.

toilet flange too high

What is a Toilet Flange?

In the realm of toilet installation, there lies an often overlooked but essential component: the toilet flange. Have you ever pondered the significance of this seemingly insignificant piece of plumbing? Let us embark on a journey to unravel its mysteries.

Toilet flanges, crafted from a variety of sturdy materials like PVC and cast iron, are carefully chosen for their unwavering durability and exceptional resistance to water. Their purpose, dear reader, is to establish a steadfast bond between the toilet and the waste pipe, serving as an impenetrable seal against leaks and odors. Failure to install this unassuming flange correctly can result in a cascade of problems, including pesky leaks and unwelcome water damage.

Behold, for there are an array of toilet flanges at your disposal, each possessing its own unique traits and advantages. Wax rings, gasket seals, and adjustable flanges, to name a few, cater to specific needs and requirements. The selection of the right flange is paramount to the success of your installation endeavor.

Thus, let us etch this wisdom into the depths of our minds: the toilet flange, though diminutive in stature, assumes an irreplaceable role in establishing a firm and unyielding connection between your toilet and the waste pipe.

toilet flange too high

Why is a High Toilet Flange a Problem?

A toilet fitted with a high flange can bring about a multitude of complications. One predicament arises from the challenge of establishing a tight seal between the toilet and the flange, resulting in potential leaks and subsequent water damage. Furthermore, an improperly sealed toilet and flange can lead to water seepage, causing harm to the flooring and subfloor in the vicinity.

Moreover, the presence of a high flange poses a risk of instability to the toilet, thereby increasing the likelihood of injury. Swiftly addressing this matter is of utmost importance in order to guarantee a safe and fully operational toilet.

Using Plywood

In order to address a raised toilet flange , utilizing plywood is a reliable and efficient fix. Opt for durable plywood, approximately 3/4 inch thick, that spans the entire gap . Fasten the plywood to the flange using screws or nails, ensuring a secure attachment .

Align the plywood meticulously with both the flange and the floor to eliminate any potential instability. Employ a level to detect any irregularities and make necessary adjustments. By firmly securing the plywood, movement or shifting can be prevented.

Adhering to these guidelines will successfully fill the gap and establish a sturdy and dependable installation for your toilet.

If your toilet flange is too high, it can cause leaks and wobbling. In this video, learn how to fix a toilet flange that is too high. Get step-by-step instructions to ensure a secure and leak-free toilet installation.

YouTube video

Using Grout

When it comes to fixing a high toilet flange , finding a solution that works effectively is key. One option that can do the trick is using grout to fill in the gap. It’s important to follow the manufacturer’s instructions for the correct mixing ratio and consistency of the grout, as this will ensure a successful repair.

Take your time and allow the grout to dry properly. This will create a strong and durable seal between the toilet and the flange, preventing any potential leaks in the future. Rushing the drying process can compromise the bond and lead to weaker results.

Once the grout-filled gaps have dried, it’s essential to clean and maintain them regularly. Stick to mild detergent mixed with water for cleaning, avoiding any harsh chemicals or abrasive cleaners that could harm the grout. By taking the time to mix, dry, clean, and maintain the grout-filled gaps, you’ll achieve a long-lasting and secure seal for your toilet flange.

So grab your mixing tools and give your toilet flange the tender love and care it deserves for a strong and reliable installation.

If you’re unsure about the proper toilet flange height, check out our article “Toilet Flange Height” for all the information you need to ensure a perfect fit for your toilet installation.

toilet flange too high

Using Cement

Repairing a raised toilet flange with cement is a reliable method. After applying the cement, let it dry for a day or two to ensure a strong seal. Make sure to fill all gaps evenly to prevent leaks and water damage.

Smooth out the cement to prevent any movement or instability in the toilet. By following these simple steps, you can swiftly and securely fix your toilet flange .

Fixing a High Toilet Flange: Simple Steps to Secure and Stable Installation

  • A high toilet flange refers to the situation where the flange, which connects the toilet to the floor, is positioned too high above the floor level.
  • This can be a problem because it can create an unstable and uneven seating for the toilet, potentially causing leaks and damage to the surrounding flooring.
  • One effective solution for a toilet flange that is too high is to fill the gap between the flange and the floor using materials such as plywood, grout, or cement.
  • Another option is to raise the bathroom floor to bring it up to the level of the flange, ensuring a proper and secure installation.
  • In some cases, it may be necessary to replace the toilet flange entirely to resolve the issue.
  • A step-by-step guide can be followed to fix a high toilet flange, including gathering the necessary tools, preparing the area, and completing the process.
  • If you are unsure or uncomfortable with the process, it is recommended to seek professional assistance by calling a plumber.

2. Raising the Bathroom Floor

In the quest to repair a lofty toilet flange, one may find solace in the notion of elevating the bathroom floor. This ingenious approach not only bestows a steadfast foundation upon the porcelain throne but also rectifies the misalignment of the flange. When it comes to selecting the ideal flooring, a plethora of options awaits your discerning gaze.

Plywood, with its cost-effectiveness and ease of manipulation, presents itself as a viable contender. Should the surface upon which you tread prove to be uneven, the ethereal allure of self-leveling concrete may prove irresistible. Lastly, for those who crave resistance to the relentless embrace of moisture, cement backer board stands tall, as it bears the weight of the toilet with unwavering fortitude.

As you embark upon this journey of restoration , it is prudent to bear in mind the constraints of your budget , for even the most intrepid of renovators must reckon with financial realities. Now, let us delve into the sacred art of raising the bathroom floor. The first step upon this path to enlightenment involves the removal of the existing flooring, clearing the way for transformation .

Once the stage is set, the chosen material, be it plywood, self-leveling concrete, or the indomitable cement backer board, must be added to the desired height. In this harmonious dance of creation, precision reigns supreme. Every measure must be taken to ensure that the newfound elevation is perfectly level, for even the slightest imbalance could unravel the delicate equilibrium of this delicate ecosystem.

Finally, with unwavering determination, the new flooring is installed, sealing the pact of stability and grace. Bear these sacred steps in mind, dear reader, and you shall be rewarded with a result that is proper, stable, and worthy of admiration.

toilet flange too high

3. Replacing the Toilet Flange

Embarking on the journey of replacing your toilet flange is a necessary endeavor when faced with leaks or instability. These telltale signs signal a damaged or worn-out flange that demands attention. To begin this transformative process, turn off the water supply and disconnect the toilet.

Ease the bolts from their positions, allowing the old flange to bid farewell to the floor. When selecting a replacement flange, contemplate the material and size that best align with your requirements. PVC flanges, renowned for their resilience and resistance to corrosion, often reign supreme.

Remember to gauge the dimensions of your current flange to ensure a seamless fit. Though this task may appear daunting, armed with the right knowledge and tools, replacing the toilet flange can be an accomplishment of triumph. By heeding the signs, following the appropriate steps, and choosing a flange with precision, you can guarantee a seamless and efficient replacement.

Did you know that the modern flush toilet was invented by Sir John Harington in 1596?


My name is Warren and I am a professional plumber licensed and insured in the State of California. I have been in the business for over 10 years and have undertaken small and large projects including bathroom renovation, toilets, garbage disposals, faucets, sinks and kitchen plumbing jobs. This site is based on my experience with toilets. I have installed the best brands and models in all sizes and shapes. I hope this helps you with the unbiased information that you need to make the right decision.


Tools You Will Need

Fixing a high toilet flange requires the right tools . Here are the essentials :

1. Secure a wrench or pliers to remove the toilet. Ensure it fits snugly and provides the necessary leverage to loosen and disconnect the bolts .

2. Utilize a level to guarantee a stable installation . Confirm that the flange is positioned accurately and that the toilet is level. This will prevent any wobbling or instability.

3. Don rubber gloves for hygiene and protection. Dealing with toilets can be messy, so gloves will keep your hands clean and shielded from bacteria or waste. With these tools in hand, you’ll be prepared to tackle a high toilet flange.

Take your time and diligently follow the steps for a successful repair.

toilet flange too high


In the realm of toilet repairs, one must pay heed to the art of preparation. To embark on the journey of fixing a lofty toilet flange, one must first take the crucial step of shutting off the water supply to avert any untoward leakage. Once this task is accomplished, the next act involves removing the toilet and ensuring that the flange area is devoid of any impurities.

Furthermore, it is imperative to ascertain that the flange is firmly affixed to the floor, for this forms the foundation of a triumphant repair. By adhering to these meticulously outlined steps, one not only sets oneself up for a prosperous mending endeavor but also successfully circumvents any potential complications that may arise. It is crucial to bear in mind that an unwavering attention to detail during the preparatory phase shall bestow upon you the invaluable rewards of time saved and frustration averted in the days to come.

How to Lower a Toilet Flange that is Too High

  1. Measure the height of the toilet flange to determine how much it needs to be lowered.
  2. If the gap between the flange and the floor is small, you can fill it by placing a piece of plywood of the same thickness as the gap.
  3. If the gap is larger, use grout to fill it. Mix the grout according to the manufacturer’s instructions and apply it to the gap, making sure to smooth it out evenly.
  4. If the flange is significantly higher, you may need to use cement to fill the gap. Mix the cement according to the instructions and apply it to the gap, ensuring it is level with the surrounding floor.
  5. If filling the gap is not feasible, you can consider raising the bathroom floor. This may involve removing the existing flooring, adding additional subflooring, and installing new flooring to raise the overall level.
  6. If none of the above solutions work, you may need to replace the toilet flange altogether. This will require disconnecting the toilet, removing the old flange, and installing a new one at the proper height.
  7. Once the necessary repairs or adjustments have been made, reattach the toilet securely and test for any leaks or instability.


Achieving a seamless repair for a high toilet flange requires a meticulous approach. Here are the essential steps to ensure a successful restoration:

1. Begin by crafting a sturdy and level foundation. Measure and cut the ideal size of plywood to fill the gap.

2. Create a resilient bond by mixing grout to fill the void between the flange and the floor. Adhere to the provided instructions diligently, ensuring the correct mixing ratio and consistency. This meticulous process results in a long-lasting seal.

3. With precision and care, remove the old flange and install a new one. Disengage the toilet, extract the outdated flange, and replace it with the appropriate type for a secure and watertight connection. Remember, it is imperative to approach this repair with unwavering attention to detail.

Dedicate ample time and closely adhere to the instructions to effectively rectify the issue with the high toilet flange.

toilet flange too high

1/3 Professional Assistance: When to Call a Plumber

There comes a time when DIY methods fall short in the face of a stubborn toilet flange. The signs become crystal clear: struggling to seal it properly, leaks looming, and the risk of water damage growing. It’s a moment to admit defeat and seek the help of a professional plumber .

They possess the wisdom and know-how to handle even the most complex of flange issues. With their expertise , they can diagnose the problem accurately and offer the perfect remedy, be it replacing the flange or raising the bathroom floor. Remember, taking unnecessary risks with your plumbing is never worth it.

When DIY fails or the situation feels overwhelming, make that call to a plumber. They have the skills and tools to conquer the problem swiftly, preventing further harm and providing a lasting solution for your high toilet flange concerns.

If you’re struggling with a toilet flange that is too high, check out our article on how to fix a high toilet flange for helpful tips and solutions.

Types of Toilet Flanges: A Comparative Table

Toilet Flange Type Height Adjustability Description/Features
PVC Flange Limited A standard height toilet flange made of PVC material. It provides a stable connection between the toilet and the waste pipe. However, it has limited adjustability and may require additional adjustments for high flanges. It is commonly used in residential and commercial buildings.
Stainless Steel Flange Limited A standard height toilet flange made of stainless steel. It offers durability and corrosion resistance. Similar to PVC flanges, it has limited adjustability and may require additional adjustments for high flanges. Stainless steel flanges are commonly used in high-end residential and commercial applications.
Adjustable Flange Highly adjustable An innovative toilet flange that provides high adjustability to accommodate different installation heights. These flanges typically feature a telescopic design or an adjustable collar, allowing for precise height adjustment. They are suitable for both standard and high toilet flanges, eliminating the need for additional adjustments. Adjustable flanges are widely used in modern construction projects.
Offset Flange Highly adjustable A specialized toilet flange designed for high flanges and offset installations. It allows for vertical and horizontal adjustments, making it ideal for situations where the toilet needs to be placed at an offset angle from the waste pipe. Offset flanges ensure a proper and secure connection between the toilet and the waste system, especially in older buildings with unique plumbing configurations.

2/3 Preventing a High Toilet Flange: Tips and Tricks

To avoid expensive problems, it is crucial to regularly inspect and maintain your toilet flange. Take the time to look for any cracks or signs of corrosion, as catching these issues early can save you a lot of trouble. During installation, be mindful not to apply too much pressure or uneven force, as this can lead to leaks.

Take it slow and use the appropriate tools for the job. Consider using a wax ring or rubber gasket to provide an extra layer of protection against leaks. Just make sure to choose the right size and type that matches your toilet and flange.

By following these simple guidelines, you can prevent major toilet flange problems . Proper maintenance, careful installation, and quality sealing materials will ensure your toilet functions flawlessly for many years to come.

toilet flange too high


In conclusion, understanding the problem of a toilet flange that is too high is essential for homeowners facing this issue. This article provides a comprehensive guide on the causes and solutions for a high toilet flange, including filling the gap, raising the bathroom floor, and replacing the flange. The step-by-step guide offers clear instructions and the necessary tools for fixing the problem.

While professional assistance may be required in some cases, this article empowers readers to tackle the issue themselves. Additionally, the article includes tips and tricks for preventing a high toilet flange in the future. Overall, this informative and practical article is a valuable resource for those seeking solutions to a toilet flange that is too high.

For further assistance with related plumbing issues, we recommend exploring our other articles on toilet maintenance and repairs.

If you’re looking for a helpful guide on how to shim a toilet properly, check out our article “Shimming a Toilet” where we provide step-by-step instructions to ensure your toilet is level and secure.

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