Every Question We Get, Answered Honestly
Ontario’s exterior cleaning needs change with the seasons. From clogged eavestroughs and streaky windows to algae on siding, pressure washing concerns and freeze-thaw conditions, find practical answers about cleaning, costs and year-round exterior care.
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Need more detail than an FAQ answer? Browse our services, maintenance guides, and information about SUDS in Toronto.
Health Risks, Moisture and Property Damage
Can clogged eavestroughs contribute to mould growth?
Clogged eavestroughs cause overflow of water can damage:
- Exterior walls
- Foundations
- Ceilings
- Attic
- Ventilation
Persistent moisture in these areas encourages mould growth. Our regular eavestrough cleaning helps maintain proper drainage of water and prevent from moisture-related issues.
Can mould grow around window frames and sills?
Persistent moisture can encourage mould growth around:
- Siding
- Roof edges
- Window frames
- Foundations
You can prevent these areas from mould growth to clear eavestroughs and maintain proper flow of water. If mould grow inside you should identify the interior source of moisture.
Can blocked eavestroughs contribute to water damage inside a home?
Blocked gutters can damage your roof edges and exterior walls. This may contribute to:
- Leaks
- Wood deterioration
- Moisture entering the home
Regular cleaning is important before rainfall and winter weather.
Can excess moisture around a home contribute to mould growth?
Yes, persistent moisture can cause mould growth on:
- Window frames
- Roof edges
- Siding
- Foundation
Clear eavestroughs reduce moisture and maintain proper drainage. If mould grows inside, the source should be identified.
Mould, Algae and Organic Growth Identification
What is the difference between mould, mildew and algae on exterior surfaces?
These are different types of growth that appear on moist or damp surfaces.
- Algae appears in green colour
- Mildew has a powdery appearance
- Mould may look patchy or dark
Their extensive growth cannot be confirmed through colour may require professional assessment.
How can you tell if green marks on siding are algae or mould?
It is possible green marks may be caused by:
- Other organic growth
- Mould
- Algae
Only colour does not confirm the appearance. You should discuss with our professional team that they use suitable methods for cleaning siding.
How can you tell whether dark stains on siding are mould, algae or dirt?
Dark stains may result from:
- Dirt
- Algae
- Mould
- Pollution
- Weather-related buildup
Their appearance cannot confirm from their appearance, you should assess your siding material before cleaning.
Does pressure washing remove algae and mould permanently?
Pressure washing can remove mould and algae growth from some surfaces but not confirmed for all surfaces. They can re-grow under favourable conditions. But, SUDS Window and Eaves Cleaning provides right cleaning solutions depend on your surface condition and type of buildup.
Process and Timeline
What does a professional window cleaning service include?
Our professional services for removing:
- Dirt
- Dust
- Water marks
Before confirm your booking, you should understand about additional charges and areas are covered.
Do I need to stay home while someone cleans my exterior windows?
No need to stay home but make sure arrangements beforehand. You should provide instructions about cleaning.
How long do windows stay clean after professional cleaning?
Windows may stay clean for several weeks or longer depending on:
- Weather
- Dust
- Pollen
- Nearby trees
- Road traffic
Airborne debris can leave marks but our regular maintenance services can improve appearance of your home.
Why are my windows still dirty after cleaning?
Windows may stills look dirty due to:
- Mineral deposits
- Hard-water stains
- Paint or stubborn residue
You should discuss with cleaning provider when additional treatment is needed.
How long does it take to pressure wash a house?
Pressure wash depends on:
- Property size
- Exterior material
- Level of dirt
Minor buildup needs short time to remove but heavy buildup may take longer. Our professional assessment provides suitable estimate.
What happens if rain or bad weather affects my scheduled service?
Different factors can affect on quality and safety of exterior cleaning such as:
- Rain
- Strong winds
- Freezing temperatures
When weather in unsuitable you should reschedule the service and discuss with SUDS Window and Eaves Cleaning Company.
Materials and Surface Protection
Can pressure washing damage siding, brick or other exterior surfaces?
Yes an excessive pressure can damage:
- Siding
- Loosen mortar
- Strip paint
But, we use suitable pressure depends on condition and material. You should inspect your surfaces before cleaning.
What is the difference between pressure washing and power washing?
In pressure washing use high pressure to remove dirt and buildups while heated water is used in power washing. Right option depends on your cleaning requirements and surface.
What is the best cleaning solution for exterior pressure washing?
Our best cleaning solutions depends on:
- Surface material
- Type of buildup
Some surfaces require only water while some surfaces need products to clean. Before cleaning these products, you should follow the instructions that prevent your surface from damage.
Is pressure washing suitable for every type of siding?
It is not suitable for every type of siding, some sides need gentle methods or different pressure levels such as:
- Vinyl
- Wood
- Brick
Older siding needs an extra care, assess your property before cleaning prevent from risk of damage.
How do professional cleaners protect delicate exterior surfaces?
Professional cleaners choose suitable cleaning methods and gentle techniques to protect your property from nearby trees. We assess:
- Surface
- Identify vulnerable
- Type of cleaning
Snow, Freeze/Thaw and Seasonal Questions
What is the best month to clean eavestroughs in Ontario?
There are the following times to clean eavestrough in Ontario.
- In spring, remove debris left by winter
- In fall, clear leaves before freezing temperatures
Ideal time depends on different factors such as: trees and weather changes.
Should eavestroughs be cleaned before winter?
Cleaning is important before winter because organic material can clog the eavestroughs and cause overflow of water. Eavestroughs blocked due to:
- Leaves
- Twigs
- Debris
Proper scheduling of cleaning is important maintain the proper drainage of water.
What is the best time of year to wash windows in Ontario?
Temperature, precipitation, and wind affect the condition of the glass. Proper time of window cleaning is spring and fall because different buildup accumulates on window surface such as:
- Seasonal dirt
- Pollen
- Debris
What is the best month to pressure wash a house?
Late spring is an important month for pressure washing in Ontario. Best time depends on:
- Weather conditions
- Surface material
- Type of cleaning
Avoid washing during freezing temperature.
Can exterior cleaning be completed during freezing temperatures?
In most cases, it is important to clean exterior surfaces in cold weather because surfaces become slippery in this season. This cold weather causes water to freeze on:
- Walkways
- Glass
- Other roofing material
This decision depends on the service and changing weather.
Cost and Pricing
How much does professional window cleaning cost?
The cost depends on:
- Size and number of windows
- Accessibility
- Condition
- Type of cleaning
But, frames and sills have different cost for glass cleaning.
How much does eavestrough cleaning cost in Toronto?
Eavestrough cleaning costs in Toronto also depend on:
- Home size
- Eavestrough length
- Height
- Accessibility
- Amount of debris
Additional work and high-rise access may affect the price. Before start your work, you should estimate your work.
How much does professional pressure washing cost?
Our professional washing cost also depends on:
- Size of the area
- Surface material
- Level of buildup
- Complexity
Washing siding and patio may also have different cost of cleaning.
What factors affect the cost of exterior cleaning?
Several factors affect on an exterior cleaning:
- Property size
- Surface condition
- Height and type of service
- Additional cleaning
- Heavy buildup
Health and Safety
Is it safe to walk on the roof to clean eavestroughs?
Walking on the roof is dangerous when the surface is:
- Steep
- Wet
- Icy
- Fragile
Falls can cause serious problem but walking on it may damage roofing materials. We provide our safer option with suitable equipment and experience.
Should you clean your own eavestroughs or hire a professional?
Different possibilities of leaning are discussed here:
- DIY cleaning is suitable for accessible areas.
- Professional cleaners use safe equipment and procedures.
- At height or in blocked areas, you should discuss with qualified service provider.
What should you avoid when pressure washing a house?
You should avoid using:
- Excessive pressure
- Directing water towards electrical components
- Spraying directly into siding gaps or vents
- Direct water towards damaged surface
Different exterior materials have different cleaning requirements.
Can pressure washing force water behind siding?
Yes, it can force behind exterior material and cause damage and moisture problems. Different factors depend on siding type and condition such as:
- Pressure
- Nozzle angle
- Distance
What precautions should be taken when using cleaning solutions
What precautions should be taken when using cleaning solutions outdoors?
You should follow the following instructions such as:
- Read and follow the product label
- Use recommended equipment
- Never mix different chemicals
- Protect nearby plants and pets
- Choose suitable products for the surfaces
Real Homeowner Questions About Exterior Cleaning in Ontario
My eavestroughs were cleaned recently, but water is still overflowing. What should I do?
The problem of overflowing may involve:
- A blocked downspout
- Improper drainage
- Damaged sections
- Issue with the eavestrough slope
Inspect the main cause of water spills during rainfall and regular maintenance or cleaning may resolve the problem of overflowing. But, you can face the problem of extensive damage when your gutters are not installed properly. My downspout is directing water towards my home's foundation.
My downspout is directing water towards my home's foundation. Can cleaning fix this?
Clean your downspout that corrects the flow of downspout. Repositioned the outlet moves water away from the house. Our window and eavestrough cleaning company offers
- Downspout adjustments
- Consult a qualified contractor
- Additional work is needed
My windows look clear in the morning but show streaks in direct sunlight. Why does this happen?
Light highlights residue left on glass such as:
- Cleaning solution
- Mineral deposits
- Dirty equipment
- Water that dries too quickly
If streaks persist after professional cleaning contact the service provider for next step determination. Some of my exterior windows are difficult to reach.
Some of my exterior windows are difficult to reach. Can they still be cleaned safely?
Many professional cleaning methods and equipments are used to clean difficult-to-reach windows. Our available approach depends on:
- Building height
- Window design
- Surrounding obstacles
- Safety requirements
When you are schedule for cleaning windows discuss our cleaning company before confirming the service. My exterior surface looks uneven after pressure washing.
My exterior surface looks uneven after pressure washing. What should I do?
An uneven surface after pressure washing due to:
- Existing stains
- Difference in surface wear
- Unsuitable cleaning method
A higher pressure can damage exterior materials and paint. We assess the surface and determine our appropriate cleaning solutions.
Helpful Maintenance & Safety Resources
For additional advice, read our eavestrough cleaning checklist or learn about our local exterior cleaning team.
Still have a question?
Contact SUDS Window and Eaves Cleaning for advice or a quote tailored to your property.
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