Toilet flange recessed 1.3-1.8 inches below finished floor surface due to subfloor leveling and tile installation, creating uncertainty about proper sealing and risk of loosening.

Flange extensions are available but conflicting advice from plumbers and AI about acceptable depth thresholds leave the user unsure about the best solution for their specific recess depth.

Opp. Score

Severity

3Medium

Willingness to Pay

implied

Added

Jun 1, 2026

Workarounds Described

uses AI and conflicting plumber opinions to evaluate risk
considers manual flange extension as workaround

Implied Software Gaps

App that measures flange recess depth via phone camera and recommends appropriate flange extender or fill method

App Concept

FlangeDepth Pro

A measurement and recommendation app that uses camera-based depth estimation to measure toilet flange recess depth and provides precise guidance on compatible flange extenders, spacers, or fill methods. Also includes an AR view to simulate finished floor height before tiling.

Key Features

Camera-based recess depth measurement (0.1-inch accuracy)
AR overlay to visualize flange height relative to planned floor build-up
Database of approved flange extenders by depth and manufacturer
Step-by-step installation instructions with torque specs
Conflict resolution wizard for contradictory plumber advice

Target Users: Homeowners and DIYers doing bathroom renovations with tile flooring who need to ensure proper toilet flange height without hiring a plumber.

Revenue Model: $4.99 per measurement report or $19.99 annual subscription with unlimited measurements and video support

Existing Solutions Mentioned

flange extension

Part of App Idea

Toilet flange recessed 1.3-1.8 inches below finished floor surface due to subfloor leveling and tile installation, creating uncertainty about proper sealing and risk of loosening.

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