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Graffiti Removal on Concrete & Foundation Walls | GraffitiMobile
Graffiti removal on concrete · Greater Montreal

Graffiti on concrete? Texture changes everything.

GraffitiMobile assessesgraffiti removal on bare concrete, painted concrete, concrete block and foundation walls for businesses, buildings, garages, industrial properties and managed properties. Porosity, finish, surface condition and access determine the workable approach.

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Address + photos are enough.
No phone call required to get started.
Bare concrete Painted concrete Concrete block Foundation walls
Graffiti sur une grande surface de béton dans un contexte industriel
Context image · concrete & graffiti
Mineral surface Smooth, porous, painted, sealed, formed or highly textured concrete does not create the same job.
To get started 3 photos
Full view of the wall
Close-up of the graffiti
Texture + access around the concrete
TO GET STARTED Address + photos You do not need to identify the exact type of concrete before sending the request.
TEXTURE Smooth or porous Density and finish affect how pigment is retained.
FINISH Bare, painted or sealed An existing coating becomes another layer to consider along with the graffiti.
CONTEXT Ground, height & access Foundation walls, garages, loading docks and industrial walls do not create the same constraints.
Send the graffiti · concrete & foundation

Send the wall. The method comes after.

The goal is not to make you diagnose the concrete. A full view and a few close-ups already show the texture, graffiti, finish and access conditions.

Address + full viewTo understand the property, size, height and access.
Close-up of the graffitiTo assess the pigment and how it covers the surface.
Texture + surroundingsTo see whether the concrete is bare, painted, block, highly porous or difficult to access.
GraffitiMobile · Concrete

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Start with what you have. More details can follow if the job requires them.











    Idéalement : une vue générale, un gros plan et une photo montrant la surface autour.


    Recommended photos: a full view, a close-up of the graffiti and a clear photo showing texture and access.
    Why concrete is different

    Concrete looks simple. Its surface is not.

    Very smooth poured concrete, a porous foundation wall, concrete block and a painted wall can all look “grey,” but they do not retain pigment the same way.

    Principle The goal is not to use the most aggressive method. It is to achieve the best reasonable result without unnecessarily creating a bleached, eroded, stripped or visibly different area.
    LEVEL 01
    Visible pigment

    The type of paint or marker affects initial adhesion.

    LEVEL 02
    Concrete surface layer

    The finish can be dense, smooth, formed, porous or textured.

    LEVEL 03
    Pores & microcavities

    Pigment can penetrate more deeply into a more absorbent surface.

    LEVEL 04
    Existing coating & condition

    Paint, sealer, cracks and repairs change the reasonable working margin.

    Concrete surface types

    “Concrete” covers several very different surfaces.

    The surface type, finish and history of paint or sealing should be distinguished before discussing the method.

    01Bare poured concrete

    Walls, structures and foundations whose texture varies depending on forming and finishing.

    02Foundation wall

    A surface often close to the ground, with access, moisture and surrounding-site constraints.

    03Concrete block

    Generally a more open texture, with visible pores and mortar joints to consider.

    04Painted concrete

    Existing paint becomes part of the surface system to consider along with the graffiti.

    05Sealed concrete

    A treatment may reduce absorption, but its compatibility and condition must be assessed.

    06Precast concrete

    The finish may be more controlled, but it varies with the panel, treatment and age of the building.

    Grande surface de béton avec graffiti dans un environnement industriel
    Context image · concrete
    Wall, foundation & access The surface is technical. The space available around the wall is also part of the job.
    Foundation walls

    Near ground level, the building context matters as much as the concrete.

    Graffiti on a foundation wall may be directly accessible or located behind a hedge, stairs, parking area, piping or landscaping.

    Height & size

    A small ground-level area and a large facade do not require the same setup.

    Access around the wall

    Vegetation, fences, vehicles, furniture or equipment can reduce clearance.

    Moisture & visible ageing

    Stains, repairs and already altered areas must be distinguished from the graffiti.

    Paint or sealer

    If the foundation wall is coated, that layer also becomes part of the result to preserve.

    Commercial applications

    Concrete often makes up the largest exposed surfaces.

    Foundation walls, garages, loading docks, side walls, blocks and industrial structures can turn a single graffiti incident into a highly visible building-wide problem.

    01Foundation wallsBuildings · condominiums · businesses
    02Garages & parking areasWalls · ramps · structures
    03Loading docks & service areasCommercial · industrial
    04Side walls & blocksLarge exposed surfaces
    Property management

    Multiple walls or multiple properties?

    A single portfolio can include concrete, brick, metal, wood and storefront glass. The starting point can remain the same.

    Send my photos
    Graffiti sur une grande surface de béton en contexte industriel
    Context image · industrial concrete A large concrete surface makes differences in texture, tone and cleaning immediately visible.
    The result and the concrete

    A durable material can still be visually altered.

    Concrete can withstand a lot, but its surface layer, paint, sealer or aged appearance can be altered if the intervention exceeds what the material reasonably allows.

    Porosity can leave a residual trace

    Open or highly textured concrete can retain some pigment in its microcavities.

    Painted concrete is still a painted surface

    The existing paint can be altered before all of the graffiti is removed.

    More pressure is not automatically better

    The goal is to improve the graffiti without creating a bleached or eroded area.

    Cracks and repairs must be distinguished

    The wall’s existing condition is part of the final result and the workable margin.

    FAQ · graffiti on concrete

    Frequently asked questions before sending photos.

    Can graffiti be completely removed from concrete?
    Often, concrete responds well to an appropriate treatment, but the result depends on porosity, texture, pigment, age and whether paint or sealer is present.
    Can graffiti penetrate concrete?
    Yes. More porous or highly textured concrete can retain pigment in its microcavities, while dense, smooth concrete may react differently.
    Can you remove graffiti from a foundation wall?
    Yes, depending on the wall’s condition and accessibility. Foundation walls can involve constraints related to ground conditions, vegetation, stairs, parking or existing paint.
    Can graffiti be removed from painted concrete?
    Yes in some situations, but the existing coating must be assessed. If the paint beneath the graffiti is fragile, touch-up or repainting may sometimes be the more appropriate solution.
    Is pressure washing alone enough to remove graffiti from concrete?
    Not necessarily. Pressure alone does not account for the pigment, porosity, existing coating or condition of the concrete. Excessive pressure can alter certain surfaces.
    Do you also treat concrete block?
    Yes. Concrete block is often more open and textured than smooth poured concrete, and its joints must also be considered.
    Is sealed concrete easier to clean?
    A sealer can limit absorption in some situations, but its compatibility and condition must be assessed. It should not be assumed that it will remain intact under every intervention.
    Can you begin the assessment from photos?
    In many cases, yes. A full view, a close-up of the graffiti and a clear photo of the texture and access are enough to get started.
    How much does graffiti removal from concrete cost?
    The price depends on factors such as graffiti size, texture, pigment, height, access and whether a coating is present.
    Can you handle multiple walls or multiple properties?
    Yes. GraffitiMobile can assess a one-time job or requests involving multiple properties within the service area.
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