Graffiti removal: compare quotes and prices

Prices: consider area and setup costs together

Even a small tag involves travel, setup and protective measures. A square-metre rate cannot simply be scaled down to a tiny patch. Porous materials, multiple paint layers and difficult access can increase the work.

Two Swiss examples checked in October 2026 illustrate different pricing models. They are not one market range and should not be averaged together.

• Same scope. Compare the same areas, agreed result and necessary preparation. A whole-facade clean or repaint is not automatically included.
• Complete price. Check testing, access at height, barriers, residue collection, disposal and VAT. Have new anti-graffiti protection priced separately.

Why the underlying surface matters

Paint can penetrate the pores of absorbent surfaces. On coated components, the original finish also needs to be preserved. Natural stone, concrete, render, wood, metal and glass cannot all be treated interchangeably.

State the material if known. Details of existing protection or previous painting help too. Where the specification is unclear, a professional check is better than a guess. Sensitive or historic surfaces should have an appropriate test before extensive treatment.

Where a test area is planned, agree which result will serve as the reference for the remaining work. Compare the dry patch with its untreated surroundings: have the original colour, gloss and texture been preserved, and what shadows remain? Record the result and the agreed method. A single test cannot assess both a wall and a gate with a different coating.

Choose the method around the surface

Depending on the job, suitable chemicals, water-based methods, blasting or laser may be considered. No method is always the gentlest or most economical. The aim is to remove the colour without unacceptable changes to the surface being preserved.

Assess shadows and damage beforehand

A completely invisible result cannot be promised in every case. Absorbed pigments, old layers or a damaged surface can remain visible. Further treatment is not automatically better if it removes material or the original finish.

Mention any scrubbing, chemical treatment or overpainting already attempted. A cleaned patch may also stand out against dirty surroundings. Agree whether the job covers just the graffiti or a larger continuous area.

At completion, check the agreed patches against their initial condition and any test area. Discuss remaining marks, noticeable edges and changes to the original surface. If further cleaning, repainting or a protective coating is proposed, confirm its purpose, limitations and extra cost before it goes ahead. Additional treatment is not automatically included in the original job.

Anti-graffiti protection is an additional service

A protective layer can make future removal easier, but it does not prevent someone spraying again. It must suit the surface and the desired appearance. Possible changes to gloss or colour should be assessed on an appropriate trial area.

• Sacrificial coating. This type of protective layer is removed with the graffiti and then renewed. Reinstating it should be explicitly included in the quote.
• Permanent system. These systems are designed for repeated cleaning. Suitable products, actual resistance and eventual renewal depend on the specific system and its condition.

Plan for residues and the surrounding area

Removal can generate dissolved paint, dirty water or fine particles. Their collection, treatment and disposal need to be settled before work. A process without added blasting media is not automatically residue-free.

Passers-by, entrances, plants and adjacent components matter too. For public or shared areas, access and responsibility must be clear. Relevant requirements for historic buildings should be agreed before cleaning or coating.

Which details make a quote useful?

An initial enquiry does not need a chemical analysis of the paint. The affected component, approximate area, surface, working height and known previous treatment provide a useful starting point. Area means the affected patches, not automatically the whole facade.

An example enquiry: ‘Black spray-painted lettering extends over roughly 1.8 × 0.7 m of our painted rendered wall. There is another inscription of about 0.5 × 0.4 m on the painted metal door beside it. The patches are between around 0.6 and 1.7 m above ground. We discovered them three days ago, but do not know when they were made or which paint was used. No cleaning has been attempted. The entrance is shared, so access needs to be arranged with us. Please assess the achievable removal result and the work needed for a test. As a separate option, we would like a continuous 4 × 2 m area of the wall protected.’

These example dimensions describe the extent of each inscription, not a fully painted area or an agreed billing quantity. The wall and door need separate assessment because their coatings differ. Existing photos taken from a safely accessible position can help with an initial assessment; unknown details can remain open. The protective coating covers a separate optional area and should not be confused with the area to be cleaned.

1. Record the condition. Document the patches before further DIY attempts. Photos and available material details can help the contractor assess the job when you speak later.
2. Agree the objective. Clarify the achievable result and whether testing is needed. Discuss remaining traces, edges and possible follow-on work openly.
3. Confirm the scope. Confirm removal, any refinishing and protective treatment separately. If protection is already present, clarify its reinstatement too.