# Soft Washing Toronto | Power Pressure Washing

> Soft washing in Toronto, ON. Sodium hypochlorite chemistry for stucco, vinyl, shingles, heritage masonry. Written quote. Call (647) 277-5411.

URL: https://powerpressurewashingtoronto.ca/soft-washing-toronto/

![Cabbagetown Victorian heritage home with limestone trim being gently soft washed](/images/misc/cabbagetown-toronto-victorian-heritage-home-with-l.webp)

# Low-Pressure Soft Washing for Stucco, Vinyl and Heritage Stone

Last updated: October 16, 2026

Chemistry-driven low-pressure cleaning for stucco, vinyl, shingles and heritage masonry such as Annex Victorian brick and Cabbagetown limestone.

-   SoftWash low-pressure line
-   Sodium hypochlorite dilution
-   Heritage brick and limestone care
-   Stucco and EIFS safe

20+ YRS

GTA Combined

$2M COI

Liability + WSIB

24/7

Phone Answered

Typical range **$350-$850** per job

Request a Free Written Quote

[#quote →](#quote)

 

Call (647) 277-5411

[tel:+16472775411 →](tel:+16472775411)

24/7 phone answered. Weekend bookings standard.

Quote: Soft Washing

Fixed per-surface pricing. No hidden trip fees.

Thanks, we got your request.

We confirm a written per-surface quote, usually the same day. Need it faster? Call (647) 277-5411.

-   20+ Yrs Combined GTA Experience
-   $2M Liability + WSIB
-   10 GTA Cities Served
-   24/7 Phone Answered
-   24 Hrs Commercial COI

Soft washing in Toronto is how we clean the surfaces that a pressure washer would damage: stucco, EIFS, vinyl, roof shingles and heritage masonry. Our SoftWash low-pressure line applies diluted sodium hypochlorite with a surfactant, lets it dwell, and rinses gently. The algae, mildew and lichen die at the root, and the surface stays intact.

## Why Do Some Surfaces Need Soft Washing?

Pressure is a blunt tool. On hard concrete it works. On softer or more delicate materials it causes damage that is expensive to fix:

-   **Stucco and EIFS** gouge and absorb water into the wall.
-   **Vinyl siding** lets water in behind panels.
-   **Asphalt shingles** lose the granules that protect them from UV.
-   **Heritage brick and lime mortar** erode, leaving open joints and pitted faces.
-   **Limestone and sandstone** etch and streak.

We see the results every season: Victorian brick with blown-out mortar, limestone with zebra streaks from a previous contractor, stucco with wand marks. Soft washing avoids all of it.

## How Does Soft Washing Work?

Our SoftWash line uses a proportioner that mixes sodium hypochlorite, water and a biodegradable surfactant at a set ratio for each surface. The surfactant helps the mix cling, so it has time to work. After a short dwell time, the biology is dead and loosened, and a low-pressure rinse carries it away. Pressure stays close to garden-hose levels throughout.

![Hidden test patch on Victorian brick and limestone showing a clean square beside black staining](/images/content/hidden-test-patch-on-victorian-brick-and-limestone.webp)

## Heritage Masonry Care

Central Toronto is full of heritage homes, many inside heritage conservation districts. We regularly clean:

-   **Victorian bay-and-gable brick** in The Annex, with soft lime mortar
-   **Limestone** sills, lintels and facades in Cabbagetown, including Indiana limestone
-   **Sandstone** on older Rosedale homes
-   **Cut-stone** on Forest Hill estates

Every heritage job starts with a hidden test patch. We document the method so you have a record if a heritage planner asks. One Cabbagetown client’s heritage inspector approved the result on first look.

## Surfaces We Soft Wash

| Surface | Typical problem | Soft wash result |
| --- | --- | --- |
| Stucco and EIFS | Green algae, grey staining | Clean finish, no gouging |
| Vinyl and aluminum siding | Algae, mildew, chalking | Bright siding, no water behind panels |
| Asphalt shingles | Black streaks, moss | Even colour, granules intact |
| Heritage brick | Green and black biological growth | Clean brick, mortar untouched |
| Limestone and sandstone | Black staining, lichen | Even tone, no streaks |

## When Should You Book a Soft Wash?

-   When green, black or grey growth appears on siding, stucco or stone
-   When black streaks show on the roof
-   Before painting, sealing or repointing masonry
-   Before listing a heritage home

## How Much Does Soft Washing Cost in Toronto?

### Pricing

A full **house soft wash runs $350-$550** for a 1,500 sqft home. A **roof soft wash runs $450-$850**. Heritage masonry and stucco facades are quoted after a test patch, in writing per surface.

## Common Problems We Solve With Soft Washing

### Zebra streaks from a previous pressure wash

Limestone and soft brick cleaned with high pressure often show light and dark bands where the wand passed. Soft washing evens out the biological staining that makes those bands stand out, and it never adds new ones.

### Black staining on north-facing masonry

Most black staining on Toronto brick and stone is biological, not soot. It responds to sodium hypochlorite chemistry and a proper dwell time.

### Lichen on stone walls and steps

Lichen grips tightly and grows slowly. It may need a second application or a little more dwell time, and it continues to release over the following weeks.

### Algae on stucco and EIFS

Stucco and EIFS stay damp in shade and turn green quickly near the lake. Soft washing with EIFS-safe detergent cleans them without gouging the finish or forcing water behind the system.

### Mildew on vinyl and painted wood

Mildew and pollen film come off easily with soft washing, and paint stays intact because there is no pressure on it.

## Sodium Hypochlorite, Explained

Sodium hypochlorite is the active ingredient in household bleach. In soft washing it is diluted to a strength suited to each surface, often far weaker on siding than on roofs, and mixed with a surfactant so it clings. It breaks down quickly into salt and water after use. That is why we pre-wet and rinse plants, control overspray and work in calm weather, and why results last: the organisms are killed, not just moved.

## What We Never Do on Delicate Surfaces

-   Use a 0-degree or turbo tip on brick, stone, stucco or wood
-   Pressure wash a shingle roof
-   Clean heritage masonry without a test patch
-   Leave soft wash solution to dry on glass, metal or plants

## Soft Washing vs Pressure Washing on Delicate Surfaces

|  | Pressure washing | Soft washing |
| --- | --- | --- |
| How it cleans | Force of water | Chemistry and dwell time |
| Effect on lime mortar | Erodes joints | Leaves joints untouched |
| Effect on limestone | Can etch and streak | Even, gentle clean |
| Effect on shingles | Strips granules | Keeps granules in place |
| How long results last | Growth returns quickly | Growth killed at the root, lasts longer |

The difference is not just about avoiding damage. Because soft washing kills algae, mildew and lichen rather than knocking them off, most surfaces stay clean one to three years longer than after a pressure wash.

## Soft Washing Across the GTA

Power Pressure Washing Toronto

[/ →](/)

 soft washes heritage homes in The Annex, Cabbagetown, Rosedale and Forest Hill in 

Toronto Central

[/service-areas/toronto/ →](/service-areas/toronto/)

, lakefront stucco and stone in Old Oakville and Bronte in 

Oakville

[/service-areas/oakville/ →](/service-areas/oakville/)

, and homes across the GTA. For full exteriors see 

house washing

[/house-washing-toronto/ →](/house-washing-toronto/)

, for roofs see 

roof cleaning

[/roof-cleaning-toronto/ →](/roof-cleaning-toronto/)

, and for commercial facades see 

exterior building washing

[/exterior-building-washing-toronto/ →](/exterior-building-washing-toronto/)

.

Transparent pricing

## How Much Does Soft Washing Cost in Toronto?

Every job starts with a written quote per surface before any work. No hidden fees, no trip charges added on the day.

Full house soft wash (1,500 sqft) $350-$550

Time: 3-5 hrs

Roof soft wash $450-$850

Time: 2-4 hrs

Heritage masonry facade $Written quote after test patch

Full house $350-$550. Roof $450-$850. Heritage masonry and stucco facades are quoted after a test patch.

Request a Free Written Quote

[#quote →](#quote)

 

Full GTA price list

[/pricing/ →](/pricing/)

Why us

## Why Choose Power Pressure Washing Toronto for Soft Washing?

### Heritage-trained crews

Annex Victorian brick, Cabbagetown limestone, Rosedale sandstone and Forest Hill cut-stone, cleaned without harm.

### Chemistry, not force

Sodium hypochlorite and surfactant kill algae and lichen at the root, so results last.

### Test patch every time

We prove the method on a hidden spot before cleaning the facade.

### Gardens and pets protected

Plants are pre-wet and rinsed, overspray controlled and pets kept inside until dry.

## Ready to book soft washing?

Send a photo or call. We tell you hot, cold or soft wash, and put the price in writing first.

(647) 277-5411

[tel:+16472775411 →](tel:+16472775411)

 

Get a Written Quote

[/contact/ →](/contact/)

How it works

## How Does Our Soft Washing Service Work?

1.  1
    
    ### Identify the material
    
    Brick, limestone, sandstone, stucco, EIFS, vinyl or shingle each get their own mix and dwell time.
    
2.  2
    
    ### Hidden test patch
    
    A small test confirms the result and that the surface reacts well before we go further.
    
3.  3
    
    ### Apply and dwell
    
    Diluted sodium hypochlorite with surfactant applied at low pressure and left to work.
    
4.  4
    
    ### Gentle rinse
    
    Low-pressure rinse, plants rinsed again, and a walk-through with you.
    

Our work

## Soft Washing Work Across the GTA

Click any photo to enlarge.

 

See the difference

## Before and After

![Soft Washing before cleaning](/images/misc/before-annex-toronto-victorian-brick-facade-with-g.webp) Before

![Soft Washing after cleaning](/images/misc/after-annex-toronto-victorian-brick-facade-clean-w.webp) After

Victorian brick in The Annex: cleaned with no pressure on the mortar

Case study

## A Recent Soft Washing Project

![Cabbagetown heritage limestone and Victorian brick facade after a low-pressure soft wash](/images/features/clean-limestone-and-red-victorian-brick-facade-of-.webp)

Cabbagetown

### Cabbagetown Heritage Limestone Soft Wash

Rig: SoftWash low-pressure line + sodium hypochlorite dilution

A Cabbagetown homeowner with a limestone and Victorian brick facade had black biological staining and streaks left by a previous high-pressure contractor. We tested a hidden patch, then applied a low-pressure soft wash with diluted sodium hypochlorite and a gentle rinse, never touching the stone with high pressure. The heritage inspector approved the result on first look, and the streaking was gone.

Soft Washing

[/soft-washing-toronto/ →](/soft-washing-toronto/)

 

Toronto Central service area

[/service-areas/toronto/ →](/service-areas/toronto/)

Client results

## What Clients Say About Our Soft Washing Work

Real jobs, real prices, written quote first.

Richard T.

Cabbagetown

$380

> "Soft wash on our Cabbagetown limestone was gentle enough that the heritage inspector approved on first look. Previous company left streaking."

Heritage limestone soft wash

Claire D.

The Annex

$520

> "Our 1890s brick semi had green staining and black spots on the shaded side. I was nervous about pressure on old mortar, but they explained the soft wash and did a small test patch first. The brick came up clean and the mortar is untouched. Very respectful of an old house. They even pointed out a spot of failing mortar near the porch so we could have a mason look at it before winter."

Victorian brick soft wash

Hannah C.

Hoggs Hollow

$685

> "Black streaks and moss on the north side of our roof had been bothering us for years. They did not use any pressure on the shingles, just a low-pressure soft wash, and they wet down all the gardens first. The streaks were gone the same day and the moss let go after a couple of rains, exactly as they said it would. The gutters were rinsed out too, and they left photos of the roof from the ladder so we could see the result up close."

Roof soft wash

Got questions?

## Soft Washing FAQs

### What is soft washing?

Soft washing is low-pressure, chemistry-driven cleaning. A diluted sodium hypochlorite mix with surfactant is applied at roughly garden-hose pressure, left to dwell and then rinsed. It kills algae, mildew, moss and lichen at the root instead of blasting them off.

### Can you clean heritage brick and limestone?

Yes. Our crews are trained on Annex Victorian brick, Cabbagetown limestone, Rosedale sandstone and Forest Hill cut-stone. Heritage masonry gets a test patch and a low-pressure soft wash, never high-pressure blasting.

### Is soft washing safe for plants and pets?

Yes, with precautions. We pre-wet plants, use a diluted mix, control overspray and rinse thoroughly. Pets should stay inside until surfaces are rinsed and dry.

### How long do soft wash results last?

Because the growth is killed at the root, most siding and masonry stays clean for one to three years, and roofs for three to five, depending on shade and moisture.

### How much does soft washing cost in Toronto?

A full house soft wash runs $350-$550 for 1,500 sqft and a roof $450-$850. Heritage masonry and stucco facades are quoted after a test patch.

Still have questions?

The phone is answered 24/7. Ask about your surface, schedule or COI.

(647) 277-5411

[tel:+16472775411 →](tel:+16472775411)

Ask in Writing

[/contact/ →](/contact/)

## Related Services

![Two-storey Toronto home with vinyl siding and brick being soft washed](/images/misc/two-storey-toronto-home-with-white-vinyl-siding-an.webp)

### House Washing

Full-house exterior wash: soft wash for vinyl, aluminum and stucco, controlled cold pressure for brick, plants protected throughout.

[House Washing →](/house-washing-toronto/)

![Toronto shingle roof under maple canopy, half soft washed to show clean versus black-streaked shingles](/images/misc/asphalt-shingle-roof-of-toronto-home-under-mature-.webp)

### Roof Cleaning

Low-pressure soft wash with sodium hypochlorite for moss, algae and black streaks on asphalt shingles, with gutter rinse and plant protection.

[Roof Cleaning →](/roof-cleaning-toronto/)

![Low-rise Toronto commercial facade being soft washed from an aerial lift](/images/misc/low-rise-commercial-office-building-facade-in-toro.webp)

### Exterior Building Washing

Low-rise commercial facade cleaning matched to material: brick, EIFS, stucco, glass and metal panel, with test patches and runoff control.

[Exterior Building Washing →](/exterior-building-washing-toronto/)

Nearest service areas

Pressure washing in Toronto Central

[/service-areas/toronto/ →](/service-areas/toronto/)

 

Pressure washing in Oakville

[/service-areas/oakville/ →](/service-areas/oakville/)

 

All GTA service areas

[/service-areas/ →](/service-areas/)

![](/images/hero/power-washing-crew-in-deep-lake-blue-shirts-beside.webp)

Phone answered 24/7 · Weekend bookings standard

## Ready to Book Soft Washing?

Soft Washing across Toronto and the GTA with the right rig for every surface and a written quote before any work.

Request a Free Written Quote

[/contact/ →](/contact/)

 

Call (647) 277-5411

[tel:+16472775411 →](tel:+16472775411)

-   Written quote per surface
-   $2M liability + WSIB
-   COI in 24 hours
-   Code 681 wash water recovery