Gutter Clogging & Why It's Wrecking Your House (Troubleshooting & Fixes)

    Your clogged gutters are a bigger problem than you think. A veteran handyman explains how they damage your home and how to fix 'em before it costs you thousands.

    DIY Fix: $5–$20
    Pro Help: $150–$500
    Time: 15–120 min

    Quick Answer

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    Common Symptoms

    Overflowing gutters during rain
    Water spilling over the sides of gutters
    Sagging or detached gutters
    Water stains on exterior walls or siding
    Mold or mildew growth on the house exterior
    Roof leaks
    Basement moisture or flooding
    Soil erosion around the foundation
    Visible debris (leaves, twigs, dirt) in gutters
    Pest infestations in clogged debris

    Possible Causes

    Accumulation of organic debris (leaves, twigs, pine needles, seeds, dirt)
    Improper gutter slope causing water to pool and debris to settle
    Damaged or improperly installed gutter guards allowing debris through
    Downspout blockages (e.g., from nests, balls, or compacted debris)
    Missing or broken gutter sections contributing to buildup locations
    Hail or storm damage bending gutters, creating traps for debris

    Step-by-Step Diagnosis

    1

    Step 1

    Visually inspect gutters from the ground for obvious debris, sagging, or overflows.

    2

    Step 2

    During or immediately after rainfall, observe water flow from gutters and downspouts for blockages or spills.

    3

    Step 3

    Using a ladder (safely), visually inspect the inside of the gutters for debris buildup, signs of standing water, or damage.

    4

    Step 4

    Check all downspout openings for obstructions.

    5

    Step 5

    Run water from a hose into the gutter at the furthest point from the downspout to test flow and identify specific clog locations.

    6

    Step 6

    Inspect the roof and foundation perimeter for signs of water damage (stains, erosion, leaks) indicative of prolonged gutter issues.

    Gutter Clogging & Why It's Wrecking Your House (Troubleshooting & Fixes)
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    DIY vs Professional Costs

    Manual Gutter Cleaning
    DIY$15-$50
    Pro$150-$250
    Time2-4 hours
    Downspout Unclogging
    DIY$0-$25
    Pro$100-$300
    Time1-2 hours
    Minor Repair (Re-sloping/re-fastening)
    DIY$20-$75
    Pro$150-$400
    Time2-5 hours
    Professional Gutter Guard Install
    DIYN/A
    Pro$800-$2500+
    Time1-2 days

    When to Call a Professional Handyman

    • If you are unable to safely access gutters due to high or steep roofs.
    • When there is significant structural damage like large cracks or detached sections.
    • If clogs are deep in the downspout and can't be cleared with a hose.
    • When problems keep happening even after you clean them, suggesting a slope or installation issue.
    • The moment you see related damage like roof leaks or water stains inside your home.
    • If you are uncomfortable with heights or physically unable to do the work safely.

    Prevention Tips

    • Regularly clean gutters 2-4 times a year, especially before heavy rain seasons (fall and spring).
    • Install high-quality gutter guards or screens to prevent debris from entering the system.
    • Trim overhanging tree branches to reduce the amount of leaves and twigs falling into gutters.
    • Ensure proper gutter slope is maintained to facilitate water flow towards downspouts.
    • Use downspout extenders to direct water at least 4-6 feet away from the foundation.
    • Periodically inspect gutters from the ground for early signs of sagging, damage, or wear.
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    Frequently Asked Questions

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