Seasonal Maintenance for Marin Homes

Here’s a comprehensive seasonal maintenance guide for Marin homes (California climate with coastal fog, occasional wind and rain, and mild temperature swings). This will help protect your home’s structure and systems year-round.

Spring (March–May)

Exterior

• Inspect roof for winter damage (shingles, flashing, vents).

• Clean rain gutters and downspouts; check for debris.

• Power-wash siding, walkways, and decks.

• Check decks/railings for rot or loose boards/fasteners.

Landscaping & Drainage

• Trim shrubs and trees away from house.

• Test irrigation system; adjust for seasonal weather.

• Clear debris from drainage areas; ensure positive runoff.

Mechanical Systems

• Service HVAC (switch to cooling if needed): change filters, check refrigerant.

• Test ceiling fans and outdoor lighting.

Summer (June–August)

Cooling & Comfort

• Clean/replace HVAC filters monthly.

• Check attic ventilation and insulation.

• Seal windows/doors where heat gain occurs.

Exterior Care

• Inspect exterior paint/trim; touch-up where needed.

• Check deck seals; re-seal if worn.

• Clean outdoor living areas and BBQ equipment.

Safety & Water

• Test smoke and CO detectors.

• Inspect hose bibs/sprinkler heads for leaks.

• Monitor water usage during dry months.

Fall (September–November)

Prep for Wet Season

• Clean gutters/downspouts again after leaf fall.

• Inspect chimney/wood stove; clean if used.

• Check roof and attic for leaks or critter access.

Weatherproofing

• Replace worn weatherstripping on doors/windows.

• Insulate exposed plumbing.

• Service garage door and auto-reverse safety sensors.

Systems

• Test heating system; replace filters.

• Drain and store hoses; winterize irrigation.

Winter (December–February)

4Moisture & Ventilation

• Check for condensation in windows; control humidity.

• Ensure attic vents aren’t blocked by debris.

Plumbing Protection

• Insulate vulnerable pipes (especially near exterior walls).

• Check foundation vents; close if freezing risk exists.

Safety & Preparedness

• Test all detectors and replace batteries.

• Review emergency supplies (flashlight, batteries, first-aid, water).

• Sweep fireplaces and check flues after heavy use.

Ongoing Monthly or Quarterly Tasks

• Change HVAC filters every 1–3 months.

• Inspect caulking around doors/windows.

• Check basement/crawlspace for moisture.

• Test sump pump (if present).

Marin-Specific Considerations

• Coastal Moisture: Salt air accelerates corrosion—regularly rinse and protect metal hardware.

• Fire Season Prep: Create defensible space, clear dry fuels 100 ft from structures, maintain fire-resistant plants.

• Fog & Mildew: Watch for mold on shaded siding; clean with appropriate mildew detergents.