Graffiti and soot on brick and stone
What “low-impact” cleaning really means for brickwork and heritage surfaces, and how to avoid damage.
Why “low-impact” matters
Brick and stone can be surprisingly easy to damage with harsh cleaning. The goal is to remove the contaminant while keeping the surface texture and edges intact.
Typical problems
- Graffiti paint soaking into porous brick
- Soot staining after a fire or chimney issue
- General grime and atmospheric staining
- Old coatings that have bonded to the surface
Good practice (in plain English)
- Start with a small test patch in an inconspicuous spot
- Use the least aggressive method that achieves the result
- Avoid over-cleaning (it can make one patch look “new” compared to the rest)
- For listed/heritage work, check permissions and conservation guidance
How we approach it
For heritage or sensitive surfaces, we’ll usually recommend a test area first and then agree the finish level. See graffiti removal and heritage & restoration.