Can Pressure Washing Safely Remove Algae & Mildew on Decks?
Can pressure washing safely remove algae and mildew from composite decking? Yes, use 800-1000 psi, wide fan nozzle, and pre-treatment. Check warranty terms.
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Affordable & Done Properly
2,500+ Local Projects Cleaned
30+ Yrs Combined Experience
Fully WorkSafeBC Protected
Commercial Grade Equipment
Tired of dirty driveways and stained patios? Our pressure washing services in Saanich deliver a deep clean that removes grime, mildew, algae, and stubborn stains.
Driveways
Walkways
Parkades
Concrete Tile Roofs
Retaining Walls
Decks
Stairs
Fences
Railings
Concrete Paving Stones
Brick Pavers
Other Hard Surfaces
Refresh concrete, pavers, and walkways while improving safety by eliminating slippery areas.
We use high-performance equipment and carefully adjust water pressure to suit each surface, from stone to wood. Whether it’s a small patio or a commercial space, we bring back the look and function of your exterior spaces.
Why Saanich Clients Choose Us:
Erases years of dirt and moss buildup
Restores walkways, decks, and patios
Helps prevent long-term surface damage
Fast, efficient service without the hassle
Fill out the form below or call us at +1 (778) 608-0080, and we will get back to you as soon as possible!
Need more than one service? Tick everything you want on the form below. We discount bundled jobs, so having them done together costs less than booking them one at a time.
We make exterior cleaning easy and hassle-free. Our streamlined process keeps you informed from start to finish—delivering superior results with clear communication, convenience, and peace of mind.
Fill out our form or give us a call. We’ll be in touch within 24–48 hours with either your estimate or a scheduled date for when we’ll complete your assessment.
View your quote online and adjust services to fit your needs. Our team is happy to answer any questions you have along the way.
Choose a date and time that works for you. We offer flexible scheduling for residential, commercial, and industrial properties.
We’ll handle everything! You’ll receive helpful reminders—including booking confirmation and details on how to prepare for each individual service—so you’re always in the loop.
At Harrison’s Property Services, we are dedicated to providing exceptional service and outstanding results every time. Our team takes pride in delivering meticulous work with professionalism and care. You can count on us to maintain the highest standards from start to finish.
From the beaches of Cadboro Bay and Cordova Bay to the busy McKenzie and Quadra corridors, our crews clean driveways, patios, decks and parkades across Saanich. Find your area below to see what we typically handle there.
Homes near the beaches of Cadboro Bay, around Cadboro-Gyro Park and up toward Arbutus Cove Park. We clean driveways, walkways, patios and decks, setting the pressure for each surface so concrete, stone and wood come back clean without being carved.
Properties along the Cordova Bay beaches, where outdoor living spaces see plenty of use. We wash patios, pavers, decks and garden paths, testing each surface in a hidden corner first, then working across the whole area for an even finish.
Neighbourhoods around Mount Douglas Park (PKOLS), Mount Douglas Golf Course and Cedar Hill Golf Course. Expect driveway and walkway cleaning that lifts dirt, moss and slippery buildup, plus deck and patio washing booked around your schedule.
Streets around Mount Tolmie and its viewpoints. We handle everything from a small back patio to a long concrete driveway, using eco-friendly products as much as possible and keeping your plants, family and pets in mind while we work.
Businesses and multi-unit buildings along the McKenzie and Quadra corridors, plus the Vernon Avenue area near Saanich Municipal Hall. We clean parkades, entrances and walkways, with flexible scheduling for property managers who need work done with minimal disruption.
Saanich’s climate is mild but wet, and that shapes how outdoor surfaces age. These figures, drawn from local climate and heritage records, explain why moss and grime build up and when cleaning works best.
Saanich's temperate climate brings steady moisture, which feeds moss, algae and mildew on concrete and decks. Regular cleaning keeps those surfaces looking better and safer underfoot.
The wettest month leaves walkways and patios slick. Clearing moss and grime in early autumn means less slippery buildup heading into the rainiest stretch of the year.
Dry summer weather lets freshly washed decks, pavers and driveways dry quickly, making mid-summer a convenient time to book a thorough clean.
The Pacific keeps temperatures moderate, but the weather can shift quickly. We keep you informed every step of the way if conditions affect your booking.
Older exteriors need a gentle hand. We adjust pressure for each material and test a hidden spot first, so historic surfaces are cleaned with care.
Close to 300 Saanich properties are on the heritage register, and over eighty are protected by a designation bylaw. Here is how the District’s rules work, and how we help you plan cleaning on an older home.
Changing the exterior of a designated heritage building in Saanich requires a Heritage Alteration Permit approved by Council vote. We'll flag anything that looks like more than cleaning.
Saanich does not require a building permit for upkeep such as painting heritage homes, so no alteration permit is needed either. Saanich Municipal Hall on Vernon Avenue can confirm specifics.
For registered heritage buildings, exterior changes need no Heritage Alteration Permit, but any building permit applications are sent to the Saanich Heritage Foundation for review.
Protection generally applies to a building's outside, though some designations also include interior or landscape features. Tell us if yours does, and we'll plan our work around them.
Designated heritage homes in Saanich display a brass oval plaque on the exterior. If you see one, mention it when requesting your estimate so we can plan a gentle approach.
Owners of designated Saanich heritage properties can receive grants covering up to 35% of restoration and upkeep costs, to a maximum of $10,000 per year.
Pressure washing raises practical questions, from what surfaces we clean to how Saanich’s wet winters affect timing. Here are clear answers to the ones we hear most. Still unsure? Call us or request a free estimate.
We clean driveways, walkways, patios, decks, pavers and parkades, along with other concrete, stone and wood surfaces. Each material takes a different setting, so we match the pressure to what we’re cleaning. If you have a surface you’re unsure about, describe it on your estimate request and we’ll talk it through.
Summer is a natural choice. July averages only about 16 mm of rain, so surfaces dry quickly after washing. Many owners also book in early autumn to clear moss and slippery buildup before November, the wettest month at about 176 mm. We offer flexible scheduling, so pick the date that suits you.
Fill out our online form or give us a call. We’ll be in touch within 24 to 48 hours with either your estimate or a scheduled date for your assessment. There’s no cost for the estimate, and our team is happy to answer any questions along the way.
We do. We offer flexible scheduling for residential, commercial and industrial properties, and property management firms already trust us to look after their buildings. Parkades, entrances and shared walkways are all part of what we clean. Tell us about access and tenant needs, and we’ll plan a time that keeps disruption low.
We use eco-friendly products as much as possible to protect your home, your family and the environment. As a locally owned business, caring for the community we work in matters to us. If you have specific concerns about plants or pets, mention them when booking and we’ll plan around them.
Let us know when you request an estimate, especially if your home has a brass oval heritage plaque. Older surfaces call for extra care, so we set the pressure carefully and test a hidden spot first. Regular maintenance on Saanich heritage homes needs no building permit, but we’ll flag anything that looks like more.
Too much pressure can carve a surface, and that damage is permanent. That’s why we adjust the pressure for each material and always start in an out-of-sight corner. We check the result there before working across the whole area, so your deck, pavers or driveway get cleaned without being scarred.
Saanich gets roughly 1066 mm of precipitation a year, with more falling in winter than in summer. That steady moisture gives moss, algae and mildew plenty of chance to settle into concrete, pavers and decks. Pressure washing removes that growth and the slippery film it leaves, making paths and steps safer underfoot.
Yes. You can view your quote online and add or remove services to fit your needs. Maybe you want the driveway and front walkway done now and the back patio later. Adjust it however works best, and reach out if you’d like help deciding what to include.
Yes. Our team is fully insured and covered by WorkSafeBC, so you can have peace of mind while we’re on-site. Safety is one of our core values, for our crew, your property and your family, and we use professional equipment and best practices on every job.
You don’t need to figure it out on your own. After you book, you’ll receive a confirmation along with reminders and details on how to prepare for your specific service. That way you know what to expect, and our crew can get straight to work when they arrive within your scheduled window.
Yes. Along with pressure washing, we keep gutters clean and clog-free, wash windows streak-free and remove moss from roofs. Choose the services you want on your quote, adjust it online, and we’ll arrange the work at a time that suits you, with reminders before each visit.
We combine expert exterior cleaning with a professional, customer-focused approach. Our experienced team is committed to quality, safety, and service—making your property shine, while delivering a seamless experience from start to finish.
At Harrison’s Property Services, we’re proud of our hardworking, friendly, and professional team. They’re committed to delivering exceptional service and results while maintaining the highest standards of safety, care, and customer satisfaction.
Hear from happy clients who trust Harrison’s Property Services for reliable service, and a job well done.
Over 15 years helping homeowners and businesses protect and beautify their properties across Victoria. Our team delivers reliable, high-quality exterior cleaning services with a focus on safety and customer satisfaction.
Stay Up To Date
Get helpful safety tips and expert advice from the Harrison’s Property Services team.
Learn how to keep your home looking great and your family protected.
Can pressure washing safely remove algae and mildew from composite decking? Yes, use 800-1000 psi, wide fan nozzle, and pre-treatment. Check warranty terms.
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