nothing to screw toilet flange to concrete floor

Nothing to Screw Toilet Flange to Concrete Floor – Why?

Most householders can complete the relatively straightforward operation of repairing a toilet entirely on their own. Discovering that you have “nothing to screw toilet flange to concrete floor” is a problem that may occur even during the setup process. We’ll look at a few of the typical reasons for this issue in this post and suggest some suggestions to assist you in placing the toilet safely on a cement floor.

Do Floor Screws or Bolts have to be Used to Secure a Toilet Flange?

The lavatory flange must be secured to the floor using screws or bolts. If you don’t, there’s a chance that the toilet won’t be adequately secured to stop swaying, which might harm the plastic cover, drainage tube, or ground.

A leak caused by a poor seal in between the flange as well as the pipeline or the flanges as well as the toilet may harm the bolts holding the flange towards the pipe or release foul odors into the restroom.

What Could be the Reasons for Finding Nothing to Screw Toilet Flange to Concrete Floor?

When trying to secure the toilet flange to something like a cement floor, there are various typical reasons why this happens.

It was not Constructed to Use the Flange

The plumbers might have yet to attempt to attach the flange before pouring the concrete slab. This might take place if such plumbers are unaware that a bathroom would be built there or if they forget.

There was a Height Issue with the Flange

The flanges were likely built too low here on the cement floor, another frequent source of this issue. The flange may have needed to have been correctly aligned prior to the concrete placement, or even the concrete may have been put too high.

The Flange Needed to be Correctly Fitted

It might happen that the flange was put incorrectly, whether it was at an angle or needed to be firmly fastened to the concrete.

The Flange had Cracks or Other Damage

It is occasionally conceivable that the flange was cracked or damaged throughout construction, which makes it difficult to fasten the toilet firmly.

The Surface Hid this Flange

It might be challenging or difficult to find the flange and attach the toilet if it is hidden by tiles, wood, or another type of surface.

The Flange has Developed Corrosion

A flange could only be capable of supporting the toilet securely if it is rusted out, which might leave it unsecure and with a sufficient seal.

The Commode and the Flange are Incompatible

It is occasionally conceivable that the flange will not work with the seat being fitted, which will render it difficult or hard to fix the toilet correctly.

How Can you Help?

Your old flange may be removed and a replacement one installed once there is nothing holding the toilet flange here to the cement floor.

Making a minimum of four holes is required to build a new toilet flange. There should be a 14-inch size opening for everyone. Contrarily, gauge how far the flange will be from the sidewall. The lavatory flange may now be screwed into the concrete floor.

How Should a Standard Toilet Flange be Mounted on a Cement Block?

  • Eliminate the Old Flange as well as Obstacles

You may discover a preexisting toilet flange once the toilet has been removed. Prior to installing the new flanges, you must get rid of this old gasket as well as any obstacles.

  • Get Rid of the Old Wax Circle

The previous wax ring surrounding the drain hole will remain in place even after users eliminate the obstacles. The waxes will be thick, gooey, and tarnished with filth. It takes perseverance, a compound blade, and work gloves to remove the wax rings.

  •    Select the Proper Replacement Toilet Flange

Keep a close eye out for the length of the drainage pipe that has just been revealed; the new flange must fit this pipe.

  • T-Bolts are Placed in the new Bathroom Flange

T-bolts should be installed in the new bathroom flange upside-down with the screwed shafts protruding. You can more clearly picture where the commode would be placed once the bolts are set.

  • Placing the Toilet Flange

Making use of the T-bolts as guiding points, push the toilet flange through into the drain aperture. Assuring that the lavatory tank is perpendicular to the wall by positioning the two bolts at suitable intervals from the rear wall.

  • Pierce Concrete Using Drills

Four holes should be drilled into the concrete flooring straight through the perforations inside the toilet flange using a hammer drill as well as a 1/4-inch concrete/masonry blade spaced evenly around all over the circle.

  • Screw the Toilet Flange Into the Foundation

The toilet flange should be secured to the concrete block using Tapcon screws or a comparable masonry/concrete bolt. You are now prepared to reinstall the toilets with a fresh wax ring after setting the bathroom flange in position.


Make Use of a Flanges Extender

What Remedies are There?

Upon the concrete floor, there are a few options if you can’t locate something to attach the toilet flange onto.

Make Use of a Flanges Extender

An extra surface for screwing the commode into is provided by a steel or plastic ring called a flange extender that rests on the already existing flanges.

Replace the Flange

A replacement flange could be fitted in the right spot if the one there now is too low, broken, or not even there. For this, it might be necessary to drill a hole inside the cement and use concrete screws to connect the new flange.

Flange Spacers are Used

To elevate the current flange to the appropriate height and create a platform for the commode just to be bolted into, flange spacers can be utilized.

Construct a Wardrobe Flange Brace

The toilet flanges are supported by this steel frame attached to the cement floor.

Choose a Kit for Extending Closet Flanges

A replacement flange, gap, as well as a replacement band that can be utilized to expand the old flange are included in this package.

Choose a Kit for Fixing Toilet Flanges

A replacement ring is included in this package, which may be used to replace faulty or damaged flanges.

Put a Flange Extension to Use

An extra area for screwing the commode into is provided by this piece of wood or steel, which rests on the already existing flanges.

Get a Qualified Plumber to Help You

You could employ a qualified plumber to resolve the issue if it is too complicated to be fixed on your own or if you need more confidence. To find the best answer for your unique circumstance, it is always preferable to contact a qualified plumber.

Does a Bathroom Installation Require a Flange


Q: How Essential are Toilet Flanges, and What are they?

A: The commode is secured to a stable surface by a round base called a toilet flange, which is affixed to the cement floor. It guarantees a perfect seal between the tank and the plumbing system, avoiding spills and smells, making it a crucial part of toilet construction.

Q: Does a Bathroom Installation Require a Flange?

A: No, the flanges are required for the installation of a toilet since it offers a durable foundation for the bathroom to be fastened to and creates a tight seal here between the lavatory as well as the plumbing system.

Q: Could a Rusty Flange be Repaired?

A: A rusty flange has to be changed since it might not be strong enough to support the commode and could not be sufficient to seal correctly.

Video Credits Phill Crockrett

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