TRAINED TECHNICIANS
Industry leading training and safety standards
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Complete protection for you and your property
PROFESSIONAL EQUIPMENT
High performance tools for superior results
LOCAL FAMILY TEAM
Proudly serving Southwestern Ontario Communities
Roof Cleaning Services
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Is Roof Cleaning Important?
Extends Roof Life
Algae, moss, and organic growth quite literally eat your shingles when left untreated.
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Improve Curb Appeal
A clean roof instantly makes your home look new.
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Prevents Costly Repairs
Lifting shingles cause leaks, water damage, and mold buildup. We eliminate the problem at the source with our soft wash clean.
Why Choose Bear Property Cleaning?
☺︎ Safe Soft Washing Process
Low pressure and specialized solutions will remove all organic growth without causing damage
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☺︎ Experienced Technicians
We know the right method that doesn't void your roofs warranty when we clean it
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☺︎ Professional Equipment
Our soft wash equipment ensures no high pressure is used that can cause damage to shingles
The Bear Process
1. Inspect
We assess the buildup, slope of your yard, and identify any problem areas on the roof
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2. Clean
We clean the roof and make sure not to damage any landscaping around your home
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3. Assess & Walkthrough
We make sure everything meets our high standards when it comes to roof cleaning
Roof Washing Information
At Bear Property Cleaning, we proudly provide professional roof cleaning and roof soft washing services across Southwestern Ontario, helping homeowners safely remove unsightly black streaks, algae, moss, lichen and organic growth without using damaging high pressure. Your roof is one of the most important and expensive components of your home, which is why cleaning it requires specialized equipment, professional cleaning solutions, proper training and a method specifically designed for roofing materials.
Ontario's combination of humidity, rainfall, snow, mature trees and seasonal temperature changes creates ideal conditions for organic growth to develop on residential roofs. Shaded areas and north-facing roof sections are particularly susceptible because they tend to remain damp longer after rainfall or morning dew. What often begins as a few dark streaks can eventually spread across large portions of a roof, dramatically affecting the appearance of an otherwise well-maintained home.
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We proudly serve homeowners and properties throughout Southwestern Ontario each year. Whether you're searching for roof cleaning near me, roof washing, roof soft washing, moss removal from roof shingles, black streak removal, algae removal from roof shingles, professional roof cleaners, asphalt shingle cleaning, cedar roof cleaning, or exterior roof cleaning, Bear Property Cleaning has the professional equipment, experience and trained technicians to properly clean your roof.
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Why We Never Pressure Wash Asphalt Shingles
One of the most important things homeowners should understand about roof cleaning is that asphalt shingles should not be cleaned using high-pressure washing. A pressure washer may remove visible staining quickly, but excessive pressure can also damage the shingles you're trying to protect. Asphalt shingles have a layer of protective granules across their surface, and aggressive pressure washing can loosen or remove these granules, damage shingle edges and unnecessarily shorten the lifespan of the roofing system. High-pressure roof cleaning can also force water underneath shingles and into areas where water isn't intended to travel. Instead of trying to physically blast organic growth from the roof, Bear Property Cleaning uses a professional soft washing process designed specifically for delicate exterior surfaces. Simply put, we let the cleaning solution do the work, not excessive water pressure.​
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Professional Roof Soft Washing in Southwestern Ontario
Soft washing uses very low water pressure combined with professional cleaning solutions formulated to target the organic growth responsible for roof staining. Rather than relying on mechanical force to strip moss, algae and staining from the shingles, the cleaning solution treats the contamination at its source.
Our technicians apply the appropriate cleaning solution to affected roofing surfaces and allow it to dwell. The treatment targets algae, moss, lichen and other organic growth while avoiding the unnecessary risks associated with high-pressure roof washing. Depending on the type and severity of growth, some staining can improve dramatically during treatment, while heavier moss and lichen may continue to release naturally from the roof over time as weather and rainfall gradually remove the remaining dead material.
This is intentional. Aggressively scraping or blasting established moss from shingles can cause more harm than allowing treated organic material to release naturally.
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What Causes Black Streaks on Roof Shingles?
Those dark black or brown streaks running down a roof aren't always ordinary dirt. A common contributor to roof discoloration is an algae known as Gloeocapsa magma. As the growth spreads across the roofing surface, it can create the dark streaking commonly seen on asphalt shingle roofs. Moisture, shade and nearby vegetation can encourage this organic growth, which is why one side of a roof can sometimes appear significantly dirtier than another. Cleaning the roof isn't simply about rinsing away the visible discoloration. A professional roof treatment is designed to address the organic contamination responsible for the staining.
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What Can Professional Roof Cleaning Remove?
Our professional roof cleaning and soft washing process is designed to treat many of the contaminants commonly found on roofs throughout Southwestern Ontario, including:
• Black algae streaks
• Green algae
• Moss
• Lichen
• Mould and mildew-related exterior growth
• Organic staining
• Tree debris
• Environmental buildup
• Bird droppings
• Pollen
• Dirt and airborne contaminants
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Every roof is different. The age of the roofing material, severity of contamination, surrounding vegetation, amount of shade, roof pitch and length of time the organic growth has been present can all affect the final result. Our goal is to achieve the best possible cleaning result while prioritizing the condition and longevity of the roofing material.
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Why Moss Should Be Treated Carefully
Heavy moss growth is very different from ordinary surface dirt. Moss can establish itself around and between shingles, particularly on shaded sections of a roof that remain damp for extended periods. Homeowners sometimes attempt to remove it using pressure washers, stiff brushes, scraping tools or aggressive physical cleaning. These methods can unnecessarily damage the roofing material. Our approach is different. We treat the organic growth using an appropriate roof cleaning solution rather than aggressively tearing established moss away from the shingles. Once treated, the remaining dead moss can gradually loosen and weather away naturally. This process may take time, particularly when a roof has substantial established growth, but protecting the shingles is more important than forcing an immediate cosmetic result.
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Why Professional Roof Cleaning Equipment Matters
Cleaning a roof involves considerably more than owning a pressure washer. Professional roof cleaning requires specialized soft wash equipment capable of applying cleaning solutions at controlled pressures and concentrations. It also requires an understanding of roofing materials, chemical application, runoff management, surrounding landscaping and safe working practices. Our technicians use professional equipment designed specifically for exterior soft washing rather than attempting to clean delicate roofing materials with excessive pressure. We assess the roof and surrounding property before beginning so we can determine the appropriate approach for the conditions we're dealing with.​
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Protecting Your Property During Roof Cleaning
Roof cleaning doesn't happen in isolation. Everything beneath and surrounding the roof must also be considered. Before and during the cleaning process, our technicians pay careful attention to surrounding siding, windows, gutters, downspouts, decks, patios, grass, gardens, trees and landscaping. Depending on the property and treatment being performed, our process can include pre-wetting vegetation, controlling or redirecting runoff, managing downspouts, rinsing surrounding surfaces and continuously monitoring landscaping throughout the service. Protecting the rest of your property is an important part of performing professional roof cleaning properly.
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Can Roof Cleaning Make an Old Roof Look New Again?
Professional roof cleaning can produce an incredible cosmetic improvement when much of the discoloration is caused by algae and organic growth. However, cleaning cannot reverse physical deterioration. If shingles are permanently faded, curling, cracked, missing granules, damaged by weather or simply approaching the end of their service life, cleaning will not restore the roofing material itself.
Our job is to remove or treat the contamination that doesn't belong on your roof, not disguise underlying roofing problems. If we notice obvious deterioration, we'll provide realistic expectations about what cleaning can accomplish.
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Asphalt Shingle Roof Cleaning and Metal Roof Cleaning
Asphalt shingles are among the most common roofing materials found on homes throughout Southwestern Ontario and are also one of the surfaces where choosing the correct cleaning method is particularly important. Our low-pressure roof soft washing process is designed to treat organic growth without relying on the aggressive mechanical force associated with pressure washing. Whether you own a newer subdivision home, century property, bungalow, two-storey family home, townhouse, rural farmhouse, country estate or large custom-built residence, our technicians can assess the roof and determine the appropriate cleaning approach.
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Cedar Shake Roof Cleaning & Restoration
Cedar requires a different approach than asphalt shingles. Over time, cedar shake roofs can accumulate algae, moss, lichen, dirt and environmental buildup while also experiencing natural weathering and colour changes. Because cedar is a natural wood product, cleaning methods must be selected carefully. Excessive pressure can damage and splinter the wood fibres, while inappropriate cleaning products can affect the material itself. Bear Property Cleaning provides specialized cedar cleaning and restoration services designed around the condition of the wood. Depending on the project, cedar restoration can involve cleaning, brightening and additional restoration treatments intended to improve and protect the appearance of the cedar. Cedar roof restoration is assessed separately from standard asphalt shingle soft washing because the materials and restoration goals are fundamentally different.​
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Restore Your Roof Without Unnecessary High Pressure
Whether you've noticed black streaks spreading across your shingles, patches of green moss developing in shaded areas, lichen growing across the roofing surface, or your roof simply looks dramatically older and dirtier than it once did, Bear Property Cleaning provides professional roof cleaning and soft washing throughout Southwestern Ontario.
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Our goal isn't simply to make your roof look cleaner. It's to identify the contamination, select an appropriate treatment, protect the surrounding property and achieve the best possible result without unnecessarily subjecting your roofing materials to damaging high pressure. For homeowners and property managers searching for professional roof cleaning, roof cleaning near me, roof soft washing, asphalt shingle cleaning, black streak removal, roof algae removal, moss removal, lichen treatment, cedar roof cleaning, or commercial roof cleaning in Southwestern Ontario, Bear Property Cleaning has the equipment, training and experience to safely tackle everything from individual homes to large multi-unit properties.
Frequently Asked Questions
How Often Should I Have My Windows Professionally Cleaned in Ontario?
For most homeowners, professional window cleaning once or twice per year is a great general maintenance schedule. Many customers choose to have their windows cleaned in the spring to remove winter buildup and again in the fall before colder weather arrives.​ The ideal frequency depends on your property's surroundings. Homes near busy roads, construction, agricultural fields, mature trees, wooded areas or the lake can accumulate pollen, dust, insects, mineral deposits and environmental grime much faster. Rather than following a strict schedule, we recommend cleaning your windows whenever buildup begins affecting their clarity or the appearance of your home.
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Do You Clean Both Interior and Exterior Windows?
Yes. Bear Property Cleaning offers both interior and exterior window cleaning. You can choose exterior-only cleaning or have us clean both sides of the glass for the most complete result. Exterior windows typically collect pollen, dust, rain residue, insects, bird droppings and environmental grime, while interior glass tends to accumulate fingerprints, pet marks, dust, cooking residue and everyday household buildup. Cleaning both surfaces provides maximum clarity and allows more natural light into your home.
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Do You Clean Window Screens?
Yes. Window screens can collect significant amounts of dust, pollen, insects, spider webs and environmental debris. Dirty screens can also make freshly cleaned glass appear cloudy and can transfer dirt back onto the window. Screen cleaning can be added to your window cleaning service for a more complete result. Depending on the type of screen and its condition, we'll use an appropriate cleaning method to remove accumulated debris before reinstalling it.
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Do You Clean Window Tracks, Frames and Sills?
Yes. We can provide more detailed window cleaning that includes accessible tracks, frames and sills.
Window tracks in particular can accumulate dirt, dead insects, pollen, pet hair, spider webs and other debris over time. Cleaning these areas creates a much more complete finished appearance than cleaning the glass alone. Older tracks and frames may have permanent staining, oxidation, paint deterioration or discoloration that cleaning cannot completely reverse. If we notice these conditions, we'll provide realistic expectations before or during the service.
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How Do You Clean Exterior Windows That Are Two or Three Storeys High?
Depending on the property, we can use professional water-fed pole systems that allow our technicians to safely clean many upper-storey windows while remaining on the ground. These systems use specialized brushes and purified water to scrub the glass and surrounding frames before thoroughly rinsing the surface. This provides an effective cleaning method for many difficult-to-reach windows while reducing unnecessary ladder use. For windows that require a different approach, our technicians determine the safest and most effective cleaning method based on the property's design and accessibility.
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What Is a Water-Fed Pole Window Cleaning System?
A water-fed pole system is professional window cleaning equipment designed to clean exterior windows using telescopic poles, specialized brushes and highly purified water. The brush loosens dirt, pollen, insects and environmental buildup from the glass and frames. The window is then thoroughly rinsed with purified water. Because the purification process removes the vast majority of dissolved minerals found in ordinary tap water, the glass can dry naturally without leaving the same mineral spotting or residue associated with untreated water.
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Why Do You Leave Exterior Windows Wet After Using Purified Water?
When we're using a professional purified-water system, leaving the glass wet is intentional. Unlike ordinary tap water, purified water contains extremely low levels of the minerals that typically create water spots when droplets evaporate. After the glass has been properly scrubbed and thoroughly rinsed, the purified water is allowed to air dry. This is part of the cleaning process and helps produce clean, clear glass without requiring every exterior window to be manually dried.
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Can You Remove Paint, Silicone, Stickers or Construction Debris From Windows?
Certain types of construction debris can be removed, but this is different from standard window cleaning and requires additional care. Paint, silicone, adhesives, stickers, mortar, concrete residue and other construction materials may require specialized products or restoration techniques. Improper removal can permanently scratch glass or damage coatings. If your windows have construction debris, please let us know when requesting your quote so we can assess the condition and determine the appropriate cleaning method.
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Can You Remove Scratches or Fogging Between the Glass?
No. Standard window cleaning removes contamination from the accessible surfaces of the glass, but it cannot repair physical damage or failed window seals. Fogging, condensation or moisture trapped between panes is usually an indication of a failed insulated glass seal. Scratches, chips, cracks and permanent glass etching also cannot be corrected through normal window cleaning. We can clean the glass thoroughly, but these underlying conditions may remain visible afterward.
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Why Do My Windows Still Look Cloudy After They're Cleaned?
Sometimes what appears to be dirt is actually a condition within or on the glass itself. Failed seals, mineral etching, oxidation, scratches, damaged coatings and permanent staining can all make a window appear cloudy even after the accessible surfaces have been thoroughly cleaned. Our technicians will do their best to identify these conditions and explain what you're seeing so you have realistic expectations about what professional cleaning can and cannot correct.
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Will My Windows Be Completely Streak-Free?
Our goal is to provide clean, clear, professional-looking windows using equipment and techniques designed to minimize streaks and residue. However, certain pre-existing conditions such as damaged glass, failed seals, oxidation, mineral etching, scratches or deteriorated window coatings can affect the final appearance. These conditions are part of the window itself and cannot be corrected through normal cleaning.
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Do You Need to Use My Water?
For many exterior window cleaning projects, our crews arrive with professional equipment and can bring purified water with us. Depending on the size and duration of the project, we may require access to an exterior water source. If your particular service requires access to water at the property, we'll let you know so everything is ready when our technicians arrive.
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Do I Need to Be Home for Exterior Window Cleaning?
No. You generally don't need to be home for exterior-only window cleaning as long as our technicians can access all areas included in the service. We simply ask that gates are unlocked and that any obstacles preventing access to the windows are addressed beforehand when possible. If you've booked interior window cleaning, someone will need to provide access to the home unless alternative arrangements have been made in advance.
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How Should I Prepare for Interior Window Cleaning?
There usually isn't much preparation required. We recommend removing small or fragile items from window sills and providing reasonable access to the windows being cleaned. If furniture, blinds, curtains or decorations prevent access to particular windows, moving them beforehand can help our technicians work efficiently and reduce the risk of accidentally disturbing personal belongings. Our team will take appropriate care while working inside your home around flooring, walls, furniture and surrounding areas.
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Can You Clean Glass Railings and Patio Doors?
Yes. In addition to traditional windows, we can clean many types of residential and commercial exterior glass, including sliding patio doors, French doors, glass railings, entrance doors, sunrooms and other accessible architectural glass. These surfaces can be incorporated into your window cleaning quote so the glass throughout the property has a consistent, clean appearance.
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What Time of Year Is Best for Window Cleaning in Ontario?
Spring and fall are two of the most popular times for professional window cleaning, but windows can be cleaned throughout much of the year when weather conditions allow. Spring cleaning helps remove winter grime, salt residue and early-season pollen, while fall cleaning can remove summer dust, insects and environmental buildup before winter. The best time ultimately depends on your property and your preferences. Homes surrounded by trees, farmland, construction or high insect activity may benefit from scheduling around periods when contamination is heaviest.
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Will Rain Make My Windows Dirty Again?
Rain itself is generally not what makes properly cleaned windows dirty. Problems occur when rainwater interacts with existing dust, pollen, dirt and environmental contamination already sitting on the glass.
Clean glass can remain clear after ordinary rainfall. However, wind-driven dirt, pollen, roof runoff, splashing soil and other contaminants carried onto the glass during a storm can cause new spotting or buildup.
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Can I Schedule Recurring Window Cleaning?
Yes. Recurring service is an excellent option for homeowners and businesses that want their windows consistently maintained rather than waiting until significant buildup develops. The appropriate frequency depends on the property. A residential home may only require seasonal service, while storefronts, offices and high-traffic commercial properties may benefit from much more frequent cleaning. We can recommend a schedule based on the building, surroundings and level of cleanliness you'd like to maintain.
Our Services
SERVICE AREA
ROOF CLEANING SPECIALISTS
✔ Roof Cleaning in London, Ontario
✔ Roof Cleaning in Sarnia, Ontario
✔ Roof Cleaning in St. Thomas, Ontario
✔ Roof Cleaning in Woodstock, Ontario
✔ Roof Cleaning in Petrolia, Ontario
✔ Roof Cleaning in Grand Bend, Ontario
✔ Roof Cleaning in Bayfield, Ontario
✔ Roof Cleaning in Port Franks, Ontario
✔ Roof Cleaning in Tillsonburg, Ontario
✔ Roof Cleaning in Ilderton, Ontario
✔ Roof Cleaning in Port Stanley, Ontario
✔ Roof Cleaning in Chatham, Ontario
✔ Roof Cleaning in Strathroy, Ontario
✔ Roof Cleaning in Dorchester, Ontario
✔ Roof Cleaning in St. Marys, Ontario
We also service dozens of small municipalities in between these cities. If you are unsure whether we work in your area please feel free to reach out.