A pre-cemented toilet flange is at an uneven depth below finished tile, and a standard flange extender does not fit because the extender is wider than the existing flange.

Standard flange extenders assume a compatible flange diameter and even surface, but existing flange is narrower and sits at an angle, making the extender unusable.

Severity

3Medium

Willingness to Pay

implied

Added

Jun 9, 2026

Workarounds Described

Watched YouTube tutorials but cannot insert extension because extender hole is wider than existing flange
Considering whether to hire a plumber or find another fix

App Concept

FlangeFit Pro

FlangeFit Pro is a universal toilet flange repair kit that adapts to any flange diameter and variable depths. It uses adjustable rings and a flexible gasket to seal uneven or angled flange surfaces without removing the cemented-in flange.

Key Features

Adjustable diameter insert to fit narrow or wide flanges
Stackable spacer rings to match uneven tile heights
Flexible sealing gasket for angled or irregular surfaces
No removal of existing flange required – installs in minutes

Target Users: DIY homeowners and plumbers dealing with incompatible or uneven toilet flanges during toilet replacement or floor retiling

Revenue Model: $24.99 per kit retail, with bulk discounts for plumbing supply stores

Existing Solutions Mentioned

Oatey extension kit

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