Preparing Your Gutters for LA's Rainy Season: Complete Checklist

Los Angeles doesn't get rain often, but when it does, storms can be intense. After months of dry weather, debris has accumulated in your gutters and you may not realize there's a problem until water is pouring over the sides during a downpour.

This checklist covers everything you need to do before rainy season to ensure your gutters are ready to protect your home.

The Complete Pre-Season Gutter Checklist

✅ Step 1: Clean All Gutters

This is the most important step. Remove all leaves, dirt, pine needles, and debris that has accumulated during the dry months.

• Remove debris by hand or with a gutter scoop
• Bag debris rather than washing it into downspouts
• Don't forget corners where debris collects
• Clean the gutter channels completely

✅ Step 2: Flush Downspouts

Clogged downspouts cause gutters to overflow even if the channels are clean.

• Run a hose at full pressure through each downspout
• Watch for water backing up or slow drainage
• If clogged, use a plumber's snake or pressure washer
• Check that water exits at the bottom and flows away from foundation

✅ Step 3: Inspect for Damage

Look for problems that could cause failures during storms.

• Cracks or holes: Even small ones let water through
• Rust spots: Indicate metal is deteriorating
• Sagging sections: Water will pool instead of drain
• Separated seams: Will leak during heavy rain
• Loose hangers: Gutters pulling away from fascia
• Fascia damage: Rotting wood behind gutters

✅ Step 4: Check Gutter Slope

Gutters should slope toward downspouts (about ¼ inch per 10 feet).

• Pour water into the gutter and watch it flow
• Water should move steadily toward downspouts
• Standing water indicates improper slope
• Adjust hangers or call a pro if slope is off

✅ Step 5: Extend Downspouts

Water should exit at least 4-6 feet from your foundation.

• Add extensions if downspouts end too close to the house
• Point extensions away from foundation on a slope
• Consider underground drainage for problem areas
• Make sure neighbors' properties won't be flooded

✅ Step 6: Trim Overhanging Branches

Branches over your roof drop debris directly into gutters.

• Trim branches that hang over your roofline
• Clear dead branches that could fall in storms
• This also reduces fire risk in wildfire-prone areas

✅ Step 7: Consider Gutter Guards

If you're tired of frequent cleaning, gutter guards can help.

• Reduce debris entering gutters
• Especially valuable near trees
• Worth the investment for foothill properties
• Don't eliminate maintenance but reduce frequency

Special Considerations by Area

Foothill Properties

Homes in La Crescenta-Tujunga, Altadena, and the Glendale hills face extra challenges:

• More debris from mountain vegetation
• Heavier water flow due to slopes above
• Critical importance of proper drainage for foundation protection
• Fire safety benefit of clean gutters (no ember-catching debris)

Hillside Homes

Hollywood Hills and similar hillside properties need extra attention:

• Gutters handle more water volume due to slope
• Erosion risk if water isn't directed properly
• May need larger gutters or more downspouts

Historic Homes

Older homes in Pasadena and Highland Park:

• Pay special attention to original gutters' condition
• Check fascia boards for hidden rot
• Period-appropriate repairs preserve home value

During Rainy Season: Ongoing Maintenance

Even after your pre-season prep, stay vigilant during the rainy months:

• After major storms: Check for overflow signs or new damage
• Between rain events: Clear any debris that's accumulated
• Watch for problems: Water stains, dripping, overflowing
• Address issues immediately: Don't wait until the season ends

When to Call a Professional

While basic cleaning can be DIY, call a pro when:

• You have a two-story home (ladder safety)
• Your roof is steep or has difficult access
• You notice damage that needs repair
• Gutters need adjustment or rehanging
• You want a thorough inspection along with cleaning
• You're not comfortable on ladders