Deck Cleaning Service

Professional Deck Cleaning Services in Vancouver, Surrey & the Fraser Valley

Your deck is one of the most used outdoor spaces on your property. It is where you host barbecues, relax on summer evenings, and enjoy morning coffee while looking out at the yard. Over time, however, BC’s wet climate takes a serious toll. As part of our full range of pressure washing services, Shine City offers expert deck cleaning across the Lower Mainland. Algae, moss, mildew, and UV damage can turn a beautiful deck into a grey, slippery hazard. Shine City Pressure Washing provides professional deck cleaning services across Vancouver, Surrey, Langley, Abbotsford, and the entire Fraser Valley. With a 5.0-star rating from 291+ Google reviews, we have built our reputation on careful, high-quality work that protects your investment while making your deck look brand new.

Types of Decks We Clean

Not all decks are the same, and each material demands a different cleaning approach. Using the wrong pressure, temperature, or cleaning solution can cause permanent damage. At Shine City, we have hands-on experience with every common decking material found in British Columbia homes.

Updated for 2026: Heading into the 2026 season, Lower Mainland homeowners are prioritizing deck maintenance earlier than ever. BC’s 2025/2026 winter delivered extended wet spells that accelerated mould and algae growth on outdoor wood surfaces. Professional deck cleaning in spring 2026 removes that buildup before it causes permanent staining or structural softening, and positions your deck for a full summer of safe, enjoyable outdoor living.

Cedar Deck Cleaning

Cedar is the most popular natural wood decking material in the Lower Mainland. It is naturally rot-resistant and has a warm, rich colour when properly maintained. However, cedar is a softwood, which means it is highly susceptible to damage from high-pressure washing. We clean cedar decks using a soft wash method with low pressure, typically between 500 and 800 PSI, combined with biodegradable cleaning solutions that kill algae and mould without harming the wood fibres. After cleaning, cedar can be brightened and sealed to restore its original golden-red tone.

Pressure-Treated Deck Cleaning

Pressure-treated lumber is the workhorse of BC decking. It is affordable, widely available, and treated with preservatives that resist rot and insects. Despite those treatments, pressure-treated decks still accumulate dirt, algae, and mildew, especially in shaded areas. We use a medium-pressure approach, typically 1,000 to 1,500 PSI, along with a fan tip that spreads the water evenly to avoid lap marks and fuzzing. After cleaning, pressure-treated decks look dramatically better and are ready for staining or sealing if desired.

Composite and Trex Deck Cleaning

Composite decking brands like Trex, TimberTech, and Fiberon are marketed as low-maintenance, but they are not no-maintenance. Mould and algae still grow on composite surfaces, and the textured finish can trap dirt and organic matter. High pressure will damage the protective cap layer on composite boards, void your warranty, and leave permanent marks. We clean composite decks with low pressure, usually under 1,000 PSI, and use manufacturer-approved cleaning solutions. The result is a deck that looks factory-fresh without any risk to the surface.

Vinyl and PVC Deck Cleaning

Vinyl and PVC decking, including brands like Azek, offers excellent moisture resistance but still gets dirty. Black mould spots, scuff marks, and general grime are common complaints. We use a gentle soft wash process with appropriate cleaning agents that dissolve organic growth and lift stains without scratching or discolouring the vinyl surface. Vinyl decks typically clean up very quickly and look outstanding once the buildup is removed.

Hardwood and Ipe Deck Cleaning

Exotic hardwoods like ipe, mahogany, and tigerwood are premium decking materials that deliver stunning results when properly maintained. These dense hardwoods can handle slightly more pressure than cedar, but they still require a careful approach to avoid damaging the grain. We clean hardwood decks with moderate pressure and follow up with a wood brightener that restores the natural colour. Because hardwoods are a significant investment, many of our clients pair deck cleaning with an oil-based sealant application to protect the wood for years to come.

Signs Your Deck Needs Professional Cleaning

Many homeowners wait until their deck is visibly grey or covered in green before calling for help. The truth is that by the time the damage is obvious, it has often been building for a year or more. Here are the most common signs that your deck is overdue for a professional cleaning.

Grey, Weathered Appearance

When natural wood decks turn grey, it means the UV rays from the sun have broken down the lignin in the wood fibres. This is purely cosmetic at first, but over time the grey layer becomes soft and starts to deteriorate. A professional cleaning followed by brightening can reverse this grey weathering and bring back the natural wood tone. If your cedar or pressure-treated deck looks silver-grey instead of its original colour, it is time for a cleaning.

Green Algae and Moss Growth

BC’s wet climate is a paradise for algae and moss. Green patches on your deck boards, especially in shaded areas near trees or north-facing sections, indicate active organic growth. Beyond being unsightly, algae and moss make your deck dangerously slippery when wet. Professional cleaning removes the growth at the root level rather than just scrubbing the surface, which means it stays clean much longer.

Splintering and Rough Texture

If your deck boards feel rough underfoot or you are getting splinters when walking barefoot, it is a sign that the wood has been neglected for too long. Dirt, moisture, and UV exposure cause wood fibres to lift and split. While cleaning alone cannot fix severe splintering, it removes the debris and organic matter that accelerate the problem. After cleaning, light sanding and sealing can restore a smooth, safe surface.

Slippery Surface When Wet

A deck that becomes dangerously slick after rain is almost always covered in a thin biofilm of algae or mildew, even if you cannot see obvious green patches. This invisible biofilm is one of the leading causes of slip-and-fall accidents on residential decks. Professional deck cleaning eliminates this biofilm completely, making your deck safe for your family, guests, and pets.

Dark Stains and Discolouration

Black or dark brown stains on your deck are usually caused by tannin bleed from the wood, mould growth, or rust from metal fasteners. These stains do not wash away with a garden hose and regular soap. Our professional-grade treatments target the specific type of stain and lift it without damaging the surrounding wood.

Our Deck Cleaning Process

At Shine City, we follow a proven multi-step process for every deck cleaning job. This systematic approach ensures consistent results regardless of the deck material, size, or condition.

Step 1: Assessment and Preparation

Before we touch a single board, we inspect your entire deck. We identify the decking material, assess the current condition, note any areas of concern such as loose boards or protruding nails, and determine the best cleaning method. We also move furniture, planters, and other items off the deck surface and protect adjacent landscaping and siding from overspray.

Step 2: Pre-Treatment

We apply a biodegradable cleaning solution to the entire deck surface and allow it to dwell for 10 to 15 minutes. This pre-treatment breaks down algae, mould, mildew, and embedded dirt at the cellular level. For heavily soiled decks or decks with significant moss growth, we may apply a stronger treatment and allow a longer dwell time. Our cleaning agents are plant-safe and will not harm your garden beds or lawn.

Step 3: Cleaning

Using the appropriate pressure setting for your deck material, we clean every board, railing, and stairway. We work with the grain of the wood, maintain a consistent distance from the surface, and use fan tips that distribute the water evenly. For composite and vinyl decks, we keep the pressure low and rely more on the cleaning solution and surface agitation. For wood decks, we adjust the pressure based on the wood species and condition.

Step 4: Brightening

After cleaning, natural wood decks receive a brightening treatment. This step neutralizes any remaining cleaning solution, restores the wood’s natural pH balance, and brings out the original colour of the wood. Brightening is what transforms a grey, tired-looking cedar deck back to its warm, golden appearance. This step is included in our standard wood deck cleaning service at no extra charge.

Step 5: Optional Sealing and Staining

Once your deck is clean and dry, we offer professional staining and sealing services. A quality sealant protects the wood from UV damage, moisture penetration, and organic growth, extending the time between cleanings and preserving the wood for years. We use premium exterior wood stains and sealants that are rated for BC’s wet climate. Your deck typically needs 24 to 48 hours of dry weather after cleaning before a sealant can be applied.

Cedar Deck Restoration in Detail

Let us handle the hard work. Call Shine City at (604) 229-5354 or get your free estimate online.

Cedar deck restoration is one of our most requested services. BC homeowners love the natural beauty of cedar, but our climate is unforgiving. A cedar deck that has not been cleaned and sealed in two or more years will typically turn completely grey, develop moss in shaded areas, and start showing signs of fibre damage. Here is how we bring it back to life.

Grey Removal and Cleaning

The grey layer on cedar is dead wood fibre that has been broken down by UV light. Our cleaning process removes this grey layer along with all organic growth, revealing the healthy wood underneath. We use low pressure and specialized wood cleaning solutions designed specifically for softwoods like cedar. The transformation is dramatic. Decks that look decades old can appear nearly new after this step.

Brightening and Colour Restoration

After cleaning, we apply an oxalic acid-based wood brightener that restores the cedar’s natural golden-red tone. This brightener also opens up the wood pores, which is essential if you plan to apply a stain or sealant afterward. Without brightening, the wood may appear washed out or overly light after cleaning. The brightening step brings back the warm character that makes cedar so desirable in the first place.

Sealing Options for Cedar

After cleaning and brightening, we strongly recommend sealing your cedar deck. You have several options depending on the look you want and the level of protection you need. A clear penetrating oil allows the natural wood colour to show through while providing UV and moisture protection. A semi-transparent stain adds a subtle colour tone while still showing the wood grain. A solid stain provides maximum UV protection and completely changes the colour of the wood. We will discuss your options during the assessment and help you choose the product that is right for your deck and your budget.

Composite Deck Care: Why Low Pressure Is Critical

We receive calls every spring from homeowners who tried to pressure wash their composite deck with a standard pressure washer and ended up with permanent damage. Composite decking has a protective cap layer on the surface that gives it its colour, texture, and weather resistance. High-pressure washing strips away this cap layer, leaving behind a rough, discoloured surface that cannot be repaired. The only fix is replacing the damaged boards, which is extremely expensive.

At Shine City, we understand the engineering behind composite decking products. We keep our pressure below 1,000 PSI and use a wide fan tip at a safe distance from the surface. We rely on proper cleaning solutions to do the heavy lifting rather than brute-force pressure. This approach removes mould, algae, and dirt effectively while keeping the cap layer completely intact. If your composite deck manufacturer has specific cleaning guidelines, we follow them to the letter so your warranty remains valid.

Composite decks do not need staining or sealing. After cleaning, they are good to go. This is one of the advantages of composite material and one of the reasons it has become so popular with BC homeowners who want a lower-maintenance outdoor living space.

Deck Cleaning Cost Guide

We believe in transparent pricing. While every deck is different, the following ranges give you a realistic idea of what professional deck cleaning costs in the Vancouver and Fraser Valley area. Final pricing depends on the deck size, material, condition, and accessibility.

Deck Size	Approximate Area	Cleaning Cost
Small Deck	Up to 150 sq ft	$150 – $225
Medium Deck	150 – 300 sq ft	$225 – $300
Large Deck	300 – 500+ sq ft	$300 – $400+
Cedar Restoration (cleaning + brightening + sealing)	Any size	$300 – $600+

These prices include our full cleaning process: assessment, pre-treatment, cleaning, and brightening for wood decks. Sealing and staining are quoted separately based on the product chosen and the deck size. Multi-level decks, decks with extensive railings, or decks in very poor condition may fall at the higher end of the range or above. We provide free, no-obligation quotes so you will know the exact cost before we start.

Deck Staining and Sealing Services

A freshly cleaned deck is the perfect canvas for a new coat of stain or sealant. We offer professional deck staining and sealing as an add-on to any deck cleaning service. Proper sealing is the single most important thing you can do to extend the life of a natural wood deck in British Columbia. Without a sealant, moisture penetrates the wood fibres, leading to swelling, warping, cracking, and eventually rot. UV exposure accelerates this damage by breaking down the lignin that holds the wood together.

We use premium exterior wood products from trusted brands that are formulated for the Pacific Northwest climate. Whether you want a clear natural finish, a semi-transparent stain that enhances the wood grain, or a solid-colour stain for maximum protection, we have you covered. Our team applies the product evenly using brushes, rollers, or sprayers depending on the product and the deck design. We always apply sealants when the weather forecast shows at least 48 hours of dry conditions to ensure proper curing.

Deck Maintenance Tips for BC Homeowners

Between professional cleanings, there are several things you can do to keep your deck looking great and avoid costly repairs down the road.

• Sweep regularly. Remove leaves, pine needles, and debris at least once a week during fall and winter. Organic debris traps moisture against the wood and promotes mould growth.
• Clear between the boards. Use a putty knife or specialized deck gap tool to clean debris out from between the deck boards. Trapped debris holds moisture and can cause premature rot.
• Move planters and furniture periodically. Items left in the same spot for months create moisture traps and uneven weathering patterns. Shift things around every few weeks.
• Address moss and algae early. If you spot green growth starting, a quick scrub with a stiff brush and some deck cleaner can prevent it from spreading. Do not let it take hold across the entire deck.
• Schedule annual professional cleaning. Once a year, ideally in spring, have your deck professionally cleaned. This removes the winter buildup and prepares the surface for the summer season.
• Re-seal every 2 to 3 years. Natural wood decks in BC should be sealed every two to three years, depending on sun exposure and wear. If water no longer beads on the surface, it is time to re-seal.
• Inspect for damage. Check for loose boards, popped nails, and soft spots at least once a year. Catching structural issues early prevents expensive repairs later.

Frequently Asked Questions About Deck Cleaning

How often should I have my deck professionally cleaned?

We recommend having your deck professionally cleaned once a year, ideally in the spring. This removes the winter buildup of algae, moss, and dirt and gets your deck ready for summer use. Decks in heavily shaded or damp areas may benefit from cleaning twice a year.

Will pressure washing damage my deck?

It can if done incorrectly. That is why we adjust our pressure, tip selection, and technique based on your specific deck material. Cedar and composite decks require very low pressure, while concrete patios can handle higher pressure. Our technicians are trained to clean every surface safely, and we have never damaged a customer’s deck.

Can you remove the grey from my cedar deck?

Yes. Grey weathering on cedar is one of the most common issues we address. Our cleaning and brightening process removes the grey, dead wood fibres and restores the natural golden-red colour of the cedar. The results are dramatic and most homeowners are amazed at the difference.

Do I need to seal my deck after cleaning?

For natural wood decks, we strongly recommend sealing after cleaning. A quality sealant protects the wood from moisture and UV damage and keeps your deck looking great for two to three years. Composite and vinyl decks do not require sealing. We offer sealing as an add-on service and can help you choose the right product for your deck.

How long does deck cleaning take?

A standard deck cleaning takes one to three hours depending on the size and condition of the deck. Cedar restoration jobs that include brightening and sealing may take longer, especially if the sealing is done on a separate visit to allow the wood to dry completely.

Is your cleaning solution safe for plants and pets?

Yes. We use biodegradable, eco-friendly cleaning solutions. We also pre-wet and protect adjacent garden beds and landscaping before we begin. Once the deck is rinsed and dry, it is completely safe for children and pets.

Can you clean a deck that has never been sealed?

Absolutely. Many of the decks we clean have never been sealed and have years of buildup. These decks often show the most dramatic transformation. After cleaning and brightening, an unsealed deck is the ideal candidate for a first coat of sealant to protect it going forward.

What is the difference between deck cleaning and deck restoration?

Deck cleaning refers to the washing and sanitizing of the deck surface to remove dirt, algae, mould, and mildew. Deck restoration is a more comprehensive service that includes cleaning, brightening, and sealing or staining. Restoration is ideal for decks that have been neglected for several years and need to be brought back to their original condition.

Do you clean deck railings and stairs too?

Yes. Our deck cleaning service includes the entire deck structure: deck boards, railings, balusters, stairs, and stringers. Railings and stairs collect just as much grime as the deck surface and are included in our standard pricing.

Can you remove old stain or paint from my deck?

In many cases, yes. Peeling or flaking stain can often be removed with our cleaning process. Heavily applied solid stains or paints may require additional stripping products. We will assess the situation during our inspection and let you know the best approach and any additional costs involved.

Areas We Serve

Shine City provides professional deck cleaning services throughout the Lower Mainland and Fraser Valley, including:

• Surrey
• Langley
• Abbotsford
• Vancouver
• Burnaby
• Coquitlam
• New Westminster
• North Vancouver
• Richmond
• Maple Ridge
• Port Coquitlam
• Delta
• White Rock
• Chilliwack
• Mission

Deck Cleaning by City

We provide professional deck cleaning across the Lower Mainland, including Vancouver, Surrey, Burnaby, Langley, Coquitlam, North Vancouver, and Richmond. Pair your deck cleaning with driveway cleaning or full exterior cleaning for a bundled discount.

Get a Free Deck Cleaning Quote

Ready to restore your deck? Contact Shine City Pressure Washing today for a free, no-obligation quote. Call us at (604) 229-5354 or request a quote online. We will assess your deck, recommend the best cleaning approach for your specific material and condition, and provide transparent pricing before any work begins. With our 5.0-star Google rating from 291+ reviews, you can trust that your deck is in expert hands.

Pair Deck Cleaning with Soft Washing

Many homeowners combine deck cleaning with professional soft washing for their home’s siding, fascia, and soffits. Soft washing uses low-pressure techniques and biodegradable solutions to remove algae, mildew, and grime from vinyl, stucco, and wood siding without causing damage. Ask about our bundle pricing when you book your deck cleaning appointment.

Our Other Exterior Cleaning Services

In addition to deck cleaning, Shine City offers a full range of exterior cleaning services including pressure washing, roof cleaning and moss removal, house washing, gutter cleaning, window cleaning, and Christmas light installation. Call us today at (604) 229-5354 for a free quote on any service.

Don’t settle for less. Call (604) 229-5354 or book your free estimate online today. Shine City delivers results.