Seasonal Exterior Maintenance Checklist for Vancouver & the Lower Mainland Homes

Owning a home in Vancouver or the Lower Mainland is a major investment, and maintaining it properly is essential to protect that value. Between coastal rain, dense tree cover, and salt air, our region presents unique challenges for exterior upkeep. Without a clear plan, small maintenance issues can quickly lead to water damage, staining, and premature wear.

This seasonal checklist provides a simple, practical framework for homeowners to stay ahead of exterior maintenance throughout the year. Each section explains what to do, why it matters in Vancouver’s climate, and when to consider calling a professional service like WashTech’s exterior cleaning team.

TL;DR

Vancouver’s wet coastal climate makes regular exterior maintenance essential.

• Fall: Clean gutters, inspect siding, and prepare drainage before heavy rain.
  
  
• Winter: Monitor gutters and remove moss from walkways.
  
  
• Spring: Wash windows, siding, and decks after the wet season.
  
  
• Summer: Softwash siding and rinse patios to maintain curb appeal.

Neighbourhood conditions vary, North Vancouver sees more moss, while Kitsilano needs more frequent window and metal cleaning.
Routine cleaning protects property value and prevents costly repairs.
Book your exterior cleaning with WashTech to stay ahead year-round.

Fall: Prepare for Vancouver’s Rainiest Season

Fall is the most critical season for exterior upkeep in the Lower Mainland. Average rainfall climbs above 100 millimetres per month from October through January (Environment Canada, 2024), putting roofs, gutters, and siding under strain.

Key tasks:

• Clean gutters and downspouts. Heavy autumn rain and falling leaves can block drainage, leading to water overflow and foundation damage. If your gutters are difficult to reach or multiple storeys high, it is safest to hire professional gutter cleaning services.
  
  
• Inspect siding and eaves. Look for signs of moss or mildew, especially on north-facing walls where moisture lingers longer. Regular washing helps prevent staining and structural decay.
  
  
• Clear patios, decks, and walkways. Wet leaves and organic debris become slippery and can cause permanent surface marks. Pressure washing before winter helps preserve traction and appearance.
  
  
• Check exterior drainage. Ensure downspout extensions and yard drains move water away from the home’s foundation.
  
  

Pro tip: Schedule exterior cleaning and gutter service in early fall before temperatures drop, when weather remains mild and predictable.

Winter - Protect Against Moisture and Cold

Although Vancouver’s winters are relatively mild, moisture remains constant. Periods of freezing and thawing can damage exterior surfaces if neglected.

Key tasks:

• Inspect gutters and downspouts monthly. Ice and debris buildup can force water beneath shingles or trim. Ladder-free vacuum systems are a safe option in icy conditions.
  
  
• Clear moss from walkways. Moss becomes especially slick when frozen; a quick power washing service prevents accidents and keeps hard surfaces clean.
  
  
• Check window seals and frames. Water intrusion through cracked caulking can lead to mold inside walls. Window cleaning professionals can safely inspect and clean glass during service.
  
  
• Monitor shaded areas for algae growth. Low sunlight and persistent dampness can encourage green film on siding, best treated early with a gentle wash.
  
  

Avoid applying harsh cleaners in freezing conditions, and consider scheduling your first full exterior wash once daytime temperatures stabilize above 5°C.

Spring: Refresh After a Wet Winter

By late March, Vancouver’s extended wet season begins to ease, making spring the best time to rejuvenate exterior surfaces.

Key tasks:

• Wash windows and frames. Rain and salt air can leave streaks and film. Water-fed pole systems clean upper storeys efficiently without ladders—ideal for homes across Burnaby and North Vancouver. See window cleaning services.
  
  
• Clean siding and trims. After months of rain, algae and grime often build up on vinyl, wood, and composite surfaces. A softwash process is safest for paint and sealants; explore house washing services.
  
  
• Inspect decks and fences. Look for mildew or discolouration. Pressure washing restores natural tone and prepares wood for sealing.
  
  
• Check driveways and retaining walls. Remove winter residue before moss sets in as temperatures rise.
  
  

Spring is also an excellent time to review your overall exterior maintenance plan and schedule professional cleaning before summer gatherings.

Summer: Maintain Curb Appeal and Prevent Growth

The drier summer months allow for preventative cleaning and exterior improvements. UV exposure and tree pollen can still create maintenance challenges unique to the Lower Mainland.

Key tasks:

• Softwash siding. Proactively remove algae or moss before they re-establish. Softwashing uses low pressure and eco-safe detergents to clean delicate surfaces without damage.
  
  
• Rinse patios and driveways regularly. Dust, tree sap, and pollen accumulate quickly during dry spells; light washing keeps surfaces bright.
  
  
• Trim overhanging branches. Reduces shade and organic debris buildup near gutters and siding.
  
  
• Clean outdoor fixtures and furniture. A quick pressure wash can remove oxidation, algae, and dirt before sealing or painting.
  
  

Maintaining surfaces during summer minimizes the work needed in fall and helps spot any damage hidden during wetter months.

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When to Hire a Professional

Some maintenance tasks are best handled by trained technicians with the proper tools and safety equipment. Consider hiring professionals when:

• Moss or mildew covers north-facing siding or rooflines.
  
  
• Your gutters are higher than one storey or difficult to access.
  
  
• You require power washing for large driveways or patios.
  
  
• You need high-window or multi-storey cleaning using water-fed pole systems.
  
  
• Surfaces require specialized detergents or pressure settings to avoid damage.
  
  

Professional crews like WashTech’s carry full liability insurance and WorkSafeBC coverage for safety and peace of mind.

Neighbourhood Maintenance Insights for Vancouver & the Lower Mainland

Not every Vancouver neighbourhood faces the same exterior maintenance challenges. Variations in tree cover, elevation, and proximity to the ocean mean your home’s upkeep needs may differ even within a few kilometres.

North Vancouver & West Vancouver:‍

Homes near forested slopes or shaded lots experience faster moss and algae growth. Surfaces on north-facing walls and driveways stay damp longer, requiring more frequent softwashing and gutter cleaning.

Vancouver West Side & Kitsilano:‍

Closer to the ocean, salt air and wind exposure can dull glass and metal fixtures. Regular window cleaning and gentle rinsing of patio areas prevent corrosion and buildup.

East Vancouver & Burnaby:‍

Older character homes and mature trees increase organic debris on roofs and in gutters. Twice-yearly pressure washing and siding maintenance help protect painted surfaces.

Coquitlam & Tri-Cities:‍

Heavier rainfall and clay-rich soil can cause faster staining of hardscapes and retaining walls. Consistent power washing maintains appearance and prevents moss slip hazards.

By understanding local microclimates, homeowners can tailor their maintenance routines to real conditions rather than generic advice. WashTech’s team works across these areas daily and can recommend customized schedules based on property type, elevation, and exposure.

Frequently Asked Questions

How often should gutters be cleaned in Vancouver?‍

Most homeowners benefit from cleaning twice a year, once in spring and again in late fall, to prevent overflow during heavy rain. Homes near trees may require additional maintenance.

What is the best season to pressure wash siding in Vancouver?‍

Spring or early summer provide ideal conditions; dry weather and moderate temperatures allow surfaces to dry quickly after cleaning.

Can I clean moss myself or should I hire a professional?‍

Small patches can be treated with mild cleaners, but extensive growth often requires professional softwashing to prevent regrowth or surface damage.

How does Vancouver’s climate affect home exteriors?‍

High rainfall, humidity, and salt air accelerate wear on paint, wood, and metal fixtures, making regular washing essential to prevent staining, corrosion, and mold growth.

Which areas do you serve?‍

WashTech provides exterior cleaning services across Vancouver and the Lower Mainland, including Burnaby, North Vancouver, West Vancouver, Coquitlam, and surrounding communities.

Why Routine Maintenance Pays Off

Staying proactive with seasonal exterior care helps prevent expensive repairs, preserves curb appeal, and extends the life of your home’s materials. Homeowners who follow a simple checklist typically spend less on repainting and structural maintenance over time.

WashTech’s team specializes in exterior cleaning solutions designed specifically for Vancouver’s wet, coastal conditions. Contact us anytime for a customized service plan or to book seasonal cleaning for your property.

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