Said It Here

How to get thinset and cemented bricks off a concrete floor

Thinset and mortar bond aggressively to concrete, making masonry cleanup grueling physical work. Without the right technique or a proper scraper, trying to chip them away by hand leaves behind hardened residue that ruins new flooring installations.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Using a small sledgehammer to tap along the bricks
  2. 2
    Using a cold chisel and a large hammer on the mortar
  3. 3
    Hiring a plumber
  4. 4
    Waiting for the contractors to potentially return and fix the mess
  5. 5
    Trying to wash it off with a hose on a jet setting

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/HomeImprovement2 people · September 2026

We inherited this from the previous owner: It is a few bricks cemented to the floor.source ↗

alositos · r/HomeImprovement · 8 upvotes

The current piece I’m trying to unf*ck is where they mixed thinset on my front steps and left a big mess on the sidewalk.source ↗

Anyone have tips for getting thinset out of sidewalk concrete??source ↗

Asleep_Morning_5057 · r/HomeImprovement · 1 upvotes

Where this came up

People with this problem also raised