No—high-pressure washing damages historic brick and mortar. We only use DOFF superheated steam (150 °C), JOS vortex cleaning, and eco-friendly poultice systems that are 100 % safe for all substrates, including century-old lime mortar.

Yes—most façades up to 6 storeys are cleaned using boom lifts, swing stages, or water-fed poles. Scaffolding is only required for intricate heritage work or very tall structures.

What is included in your free test patch and consultation?

A 1–2 m² test clean using the exact method we recommend, full before-and-after photos, a detailed written proposal with pricing, timeline, and warranty, plus recommendations for protective sealers or coatings.

Commercial Masonry Cleaning in Toronto & the GTA

Refresh stained brick, block and stone façades with A&A Masonry’s commercial masonry cleaning in Toronto and the GTA. As a commercial masonry contractor, we help property managers plan cleaning around the building’s materials, condition and access requirements.

Why Masonry Cleaning Is Essential

Masonry suffers from:

Pollution and Soot

Pollution and soot buildup.

Vandalism.

Vandalism from outside forces.

Stains

Efflorescence and salt stains.

Moss and Algae

Moss and algae growth.

Organic Residue

Bird droppings and sap.

Our commercial masonry cleaning in Toronto restores beauty.

Common Cleaning Challenges in Toronto Buildings

Traffic pollution, industrial emissions, rain and seasonal moisture can leave masonry stained or discoloured. Common cleaning concerns include:

Hard water stains and lime scale on brick and stone.

Black carbon buildup from exhaust.

White salt crystals from water behind brick.

Green growth in shaded, damp areas.

Bleeding from iron fixtures or rebar.

Left untreated, these issues can retain moisture, contribute to deterioration, damage sealants. For heritage buildings, aggressive cleaning without heritage masonry restoration Toronto risks permanent damage.

A&A Masonry’s Cleaning Process

Cleaning masonry requires material science, pressure control, and environmental responsibility. A&A Masonry brings decades of experience with Toronto’s diverse substrates—clay brick, limestone, granite, terracotta, and concrete block.

Assess the surface: identify the masonry, staining, existing coatings and damaged areas.
Review a test area: agree the proposed method and finish before wider cleaning.
Plan access and protection: consider adjacent materials, landscaping, pedestrians and building users.
Clean to the agreed scope: use the preparation and treatment selected for the surface.
Review the result: discuss remaining stains, repair needs and maintenance options.

The project scope should identify the cleaning method, site protection and any requirements that apply to the property. For a heritage building, confirm any necessary review or approval before cleaning starts.

Cleaning Systems & Long-Term Protection

The cleaning approach depends on the material, condition and type of staining. Discuss these points during your assessment:

A cleaning method selected for the existing masonry
A test area and agreed expectations for the finish
Any proposed protective treatment and its suitability
Written scope, pricing and applicable warranty terms

Cleaning can improve the appearance of masonry and make damaged areas easier to see. The result and ongoing maintenance needs depend on the surface and the cause of the staining.

Our Cleaning Services

Surface Protection

Protective sealers for long-term stain resistance and durability.

Pollution Removal

Cleaning options for pollution-related staining on brick and stone, selected for the surface.

Efflorescence Treatment

Salt removal and sealing. Works with industrial building waterproofing Toronto.

Organic Growth

Assessment and cleaning of moss, algae and other organic staining.

Experience and Service Area

A&A Masonry serves commercial property owners and managers across Toronto and the GTA, including:

Retail and office properties
Older and heritage-designated buildings, with the scope reviewed for the property
Industrial and warehouse buildings

We are proud to serve:

Toronto

Etobicoke

Scarborough

Mississauga

Vaughan

Oakville

Burlington

Hamilton

Why Choose A&A Masonry?

Award-Winning Masonry

Award-winning craftsmanship for masonry projects.

Trusted Masonry Contractor

Honest, detailed estimates and clear project timelines

Full Façade Services

Expertise in cleaning, restoration, and waterproofing.

Clear Project Terms

Scope, pricing and applicable warranty terms confirmed in writing.

Client-Focused Service

Clear communication from assessment through handover.

Frequently Asked Questions on Commercial Masonry Cleaning

How often should a commercial building in Toronto be professionally cleaned?

Cleaning frequency depends on the masonry, exposure, staining and previous treatments. Request an assessment for a recommendation based on the building’s condition rather than a fixed cleaning interval.

Is pressure washing safe for brick and stone in Toronto?

The cleaning method must suit the masonry and its condition. A test area can help assess the finish and the risk of damage before wider work proceeds. Ask which method is proposed for your building; no single method is suitable for every surface.

Can you clean my building without full scaffolding?

Access depends on the building height, façade details and work area. The proposal should identify whether scaffolding, lifts or another suitable access arrangement is needed, along with any pedestrian restrictions.

Do you clean heritage-designated buildings in Toronto?

Heritage-designated buildings require a project-specific review of the masonry, proposed cleaning method and applicable approvals. Confirm the scope with A&A and any required heritage authority before cleaning begins.

What is included in your test patch and consultation?

Ask for the proposed cleaning method, whether a test area is included, the intended finish and the written scope and pricing. The size of any test area, access arrangements and applicable warranty terms should be confirmed for your project.

Request a Commercial Assessment

Don’t let dirt or stains define your building. Contact A&A Masonry to request a commercial assessment and discuss your project. From gentle heritage cleaning to heavy-duty industrial restoration, discover why Toronto and GTA property managers, strata councils, and architects choose A&A Masonry for safe, stunning, and sustainable commercial masonry cleaning.