Rust, efflorescence, paint and adhesive marks removed from stone, tile and metal with the method matched to the substrate, tested first.
Every hard stain is a chemistry problem with a substrate constraint. The product that lifts rust from concrete will etch marble in seconds, and the blade that clears paint from glass will scratch a coated pane.
So it is identification, a test in a hidden area, then the mildest method that actually works.
What the visit covers
- Stain and substrate identified before any product is chosen
- Rust removal from stone, tile and metal fittings
- Efflorescence and mineral bloom on stone and render
- Paint, adhesive, cement and silicone residue
- Test area agreed with you before the full application
- Honest view where the mark is permanent damage rather than soil
Asked about this
Often, with a poultice rather than an acid. Acid on marble causes damage far worse than the stain.
Usually efflorescence — mineral salts drawn to the surface by moisture. It returns until the moisture is addressed.
If the cause is still there, yes. We tell you the cause as part of the job.
In writing after an inspection, with every item named. The visit costs nothing and commits you to nothing.