A thorough seasonal checklist for Abbotsford, Langley, Mission, Chilliwack & surrounding areas
The Fraser Valley’s mix of heavy rain, moss growth, windstorms, damp winters, and warm/dry summer stretches is tough on homes. A simple, consistent maintenance routine can prevent the most common (and expensive) issues: moisture intrusion, rot, mold, roof leaks, and drainage problems.
Below is a more thorough, practical checklist you can post as a blog and homeowners can actually use.
The “Always” Monthly Quick Check (10–15 minutes)
These are fast checks that catch problems early:
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Walk the perimeter after heavy rain: look for puddling near the foundation, downspouts overflowing, or splashback staining.
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Look up at the roof from the ground: missing shingles, lifted edges, sagging gutters, debris in valleys.
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Check for new interior water marks: ceilings under bathrooms, around skylights, near exterior walls.
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Run bathroom fans during showers and confirm they’re exhausting well (hold a single sheet of tissue up—should stick).
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Peek under sinks for slow leaks and damp cabinet bottoms.
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Test GFCI outlets (kitchen, bath, exterior) using the test button.
Spring Maintenance (March–May)
Spring is your “reset” after winter moisture.
Exterior & Drainage
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Clean gutters and downspouts (and check the gutter slope).
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Confirm downspouts discharge 6+ feet away from the home (use extensions if needed).
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Check that the yard slopes away from the foundation (no negative grading).
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Clear and test area drains / catch basins (if present).
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Inspect retaining walls for leaning, bulging, or new cracking.
Roof & Chimneys
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Look for:
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cracked or missing shingles
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exposed nails
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damaged flashing at chimneys/vents
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debris in roof valleys
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Check chimney crown for cracks and masonry for loose mortar.
Siding / Trim / Windows
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Inspect wood trim and siding for:
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soft spots (early rot)
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peeling paint
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open joints or failed caulking
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Re-caulk small failed areas (don’t seal weep holes).
Interior / Moisture
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Check attic access areas for:
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damp insulation
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staining on roof sheathing
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musty smells
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Check basement/crawlspace for:
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dampness
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efflorescence (white powder on concrete)
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musty odours
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Mechanical
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Replace/clean furnace filter.
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If you have a heat pump: clear debris around the outdoor unit and ensure good airflow.
Summer Maintenance (June–August)
Summer is the best time to repair and protect.
Exterior Repairs & Protection
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Repaint/seal exposed wood (fascia, trim, decks, railings).
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Inspect and seal cracks in:
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walkways
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patios
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driveway areas that channel water toward the home
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Roof & Moss Control
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If moss is present: consider professional moss treatment (avoid pressure washing shingles).
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Trim tree branches back from the roof to reduce debris and shade.
Decks, Stairs, and Railings (Safety)
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Check:
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soft/rotted boards
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wobbly railings
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loose stairs
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ledger attachment points (where deck meets house)
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Re-stain or seal as needed.
Plumbing & Water
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Inspect hose bibs for drips.
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Check visible plumbing for corrosion or mineral deposits.
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If you have a sump pump: test it and consider a backup.
Electrical
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Ensure exterior outlets have working in-use covers.
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Look for damaged exterior wiring, lights, or loose fixtures.
Fall Maintenance (September–November)
Fall is about preparing for rain + wind.
Rain Readiness (Biggest Fraser Valley priority)
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Clean gutters again once leaves start falling.
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Confirm downspout extensions are attached and draining properly.
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Clear roof valleys and check for debris buildup.
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Check grading and patio drains—water should not run toward the home.
Heating & Indoor Air
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Service furnace/heat pump if due.
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Replace filters.
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Test smoke + CO alarms.
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Confirm bathroom fans and kitchen exhaust are working properly.
Attic & Ventilation
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Make sure soffit vents are not blocked by insulation.
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Look for signs of condensation in attic spaces (staining, dampness).
Windows & Doors
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Check weatherstripping and door sweeps.
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Lubricate window tracks and ensure they lock properly.
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Watch for condensation patterns as temperatures drop.
Winter Maintenance (December–February)
Winter is mainly about preventing moisture damage and freeze issues.
Freeze Prevention
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Disconnect hoses and shut off exterior taps (if you have an interior shutoff).
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Insulate exposed pipes in cold areas (crawlspace/garage).
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Know where your main water shutoff is.
Moisture Control Indoors
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Keep indoor humidity reasonable:
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run bath fans
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use range hood when cooking
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Watch for:
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heavy window condensation
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mold at window corners
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musty odours
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Storm Checks | After windstorms or heavy rain:
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Walk the perimeter for:
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overflowing gutters
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downspouts disconnected
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water pooling
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Look in attic access areas for new staining.
Fraser Valley “High-Value” Maintenance Items (Most Worth It)
If homeowners only do a few things, these have the biggest payoff:
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Gutters + downspouts kept clear
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Downspouts discharge away from the foundation
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Roof debris/moss managed
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Bathroom fans vent properly + used regularly
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Attic ventilation/insulation kept effective
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Deck and exterior wood protected (paint/seal)
Printable Maintenance Checklist
Monthly
☐ Perimeter rain check (puddling, overflow, staining)
☐ Under-sink leak check
☐ Test GFCI outlets
Spring
☐ Clean gutters/downspouts
☐ Check roof flashing/valleys
☐ Check grading/downspout extensions
☐ Check attic for staining
Summer
☐ Seal/paint exposed wood
☐ Deck safety check
☐ Heat pump outdoor unit cleared
Fall
☐ Gutters cleaned again
☐ Furnace/heat pump service + filters
☐ Smoke/CO alarms tested
☐ Door/window seals checked
Winter
☐ Freeze protection (hoses off, pipe insulation)
☐ Manage indoor humidity
☐ Post-storm attic/perimeter check
Need a Professional Set of Eyes?
If you want a “maintenance-style” overview of your home—or you’re buying or selling—an inspection can help identify small issues before they become expensive repairs.