Why choose laser over traditional methods
Fast. Precise. Mobile.
Rust, paint, varnish, coatings, mould and graffiti have always been removed somehow — grit, acid, or elbow grease. Laser cleaning is a genuinely different approach, and it's not automatically the right one for every job. Here's how it actually works, and how it compares.
How laser cleaning actually works
Every surface we treat has two layers: the contaminant on top — rust, old paint, a coating, mould, graffiti ink — and the base material underneath that you actually want to keep.
A pulsed laser fires extremely short, powerful bursts of light at the surface. The contaminant layer absorbs that energy far more readily than the base material does, so it heats instantly and is ejected as fine dust and vapour, which our fume extractor captures as it happens.
The pulse is over before enough heat can transfer into the material underneath. That's the whole mechanism, and it's why the surface comes out intact rather than scoured or reshaped.
How it compares
Each method has its place. Here's how they compare on the things that usually matter.
| Compared on | Laser cleaning | Abrasive blasting | Chemical stripping | Wire brush and grinding |
|---|---|---|---|---|
| Left to clean up | Minimal. What comes off is captured and removed. | Blasting media that needs containing and disposal. | Hazardous chemicals to handle and dispose of. | Dust and debris. |
| Effect on the surface | Leaves sound steel's surface profile largely unchanged. | Changes the surface texture and can damage soft or thin material. | Can affect the material underneath, depending on the chemical. | Inconsistent finish that leaves marks. |
| Precision | Targets the contaminant, not the material underneath. | Hard to control around detail and edges. | Needs masking and dwell time to control. | Only as precise as the hand holding it. |
| Speed | Depends on the coating's type and thickness. | Fast on heavy, even corrosion. | Needs dwell time to work. | Slow going on anything but small spots. |
| Best suited to | Work where precision and the surface underneath matter. | Large, robust, flat areas. | Paint and coatings, with real handling and safety overhead. | Small touch-ups. |
How it behaves on different materials
Laser cleaning isn't limited to metal, but each material responds a little differently. This is what to expect.
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Steel and cast iron
Rust and mill scale lift off down to bare metal without changing the surface profile, which makes it good preparation for paint, powder coat or welding.
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Painted and coated surfaces
Paint and coatings strip back to the bare surface without stripping agents. How fast it goes depends on the coating's type and thickness.
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Timber
Timber is combustible, so it's cleaned at low power with the laser kept moving, after testing a hidden spot. Results vary with the species, the finish and its age.
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Brick, concrete and render
Graffiti ink and mould lift off masonry the same way they do off metal. The laser targets the stain, not the masonry, so the masonry is normally left unmarked. We test a small area first.
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Aluminium, copper and chrome
Highly reflective metals behave differently from steel and need different settings. They're still workable, but we assess them job by job and results can vary.
Where laser isn't the right fit
We'd rather tell you up front than oversell it. If another method would suit your job better, we'll say so.
Jobs we don't take onItems need to be dry
Cleaning a wet surface can damage the material underneath, so work can't start until it's dry.
Hidden damage can show up
Removing rust or coatings can reveal, rather than cause, pitting, thinning or other damage that was hidden underneath.
Timber can scorch
Wood can scorch, char or lose fine detail, and heat can lift veneers or loosen old glue joints. We test first, but every piece responds differently.
Finish may not match
A cleaned area may not exactly match the colour or finish of the untreated surface around it.
No built-in rust protection
Bare steel will start to rust again unless it's coated. A protective coating can be arranged separately.
No guaranteed outcome
Every surface and contaminant responds differently, so we can't promise a specific result on every combination.
Not sure if laser is right for your job?
Tell us what you're working with and we'll give you a straight answer, including if another method would suit it better.