Chemical Graffiti Removal in London, Ontario

Chemical Graffiti Removal in London, Ontario — with 50 freeze-thaw cycles annually and an average winter temperature of -5.1°C, local conditions directly impact graffiti removal methods and costs.

London's heritage stock (including Old East Village) typically requires pH-neutral chemical gel (pH 6.5–7.5) with 30–60 minute dwell time — acidic strippers dissolve mortar calcium and leave white efflorescence on brick. We pre-test an inconspicuous patch before treating the visible area, with all rinse water captured to meet local stormwater rules.

London receives 1011mm of annual rainfall, which causes spray paint to penetrate porous surfaces like brick, concrete, stucco rapidly — making prompt removal essential before paint bonds permanently.

Under the London Property Standards By-law, property owners must remove graffiti within 10 days of notification. Our hourly rate in London ranges from $35–$68.

Heritage zones including Old East Village require specialized methods — only pH-neutral chemical removal or laser ablation are approved for protected surfaces.