How to Fix a Broken Gutter – Complete Guide

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8 min read|Updated: Jun 27, 2026|By Home Repair Expert

Quick Answer

A broken gutter is fixed depending on the failure: replace loose spikes with hidden bracket hangers (more secure), seal leaking joints with gutter sealant on the inside surface, and reset slope toward the downspout (about 1/4 inch per 10 feet). Clean all debris first, inspect the fascia for rot, then address the specific failure point. Most repairs take 1-2 hours.

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A broken gutter, whether it is sagging, leaking at the joints, overflowing, or pulling away from the house, is a problem worth fixing quickly. Gutters protect your home by channeling rainwater away from the walls and foundations, so a failing gutter can lead to damp walls, a soggy garden, and even foundation problems. Most gutter repairs are well within DIY reach.

This guide covers how to fix the most common gutter problems, from clearing blockages and resealing leaks to re-securing a sagging run, with safe, lasting results.

Common Gutter Problems

Gutters face constant weather and debris, so they fail in a few predictable ways:

• Blockages: Leaves, moss, and debris clog the gutter and downpipe, causing overflow, the most common issue.
• Leaking joints: The seals or connectors between gutter sections perish and drip.
• Sagging sections: Loose or broken brackets let the gutter sag, so water pools instead of draining.
• Cracks and splits: Age, frost, and impact can crack plastic guttering, letting water escape.

Tools and Materials You Will Need

• Ladder (and a helper for safety)
• Gloves and a scoop or trowel
• Bucket
• Gutter sealant
• Replacement brackets, connectors, or seals
• Replacement gutter section (if cracked)
• Hose
• Screwdriver

Step-by-Step: How to Fix a Broken Gutter

Step 1: Clear the Gutter and Downpipe

Start by scooping out leaves and debris into a bucket, then flush the gutter with a hose. Clear any blockage in the downpipe too. A surprising number of overflow problems are solved at this step alone.

Step 2: Check the Fall and Re-secure Sagging Sections

Run water along the gutter and watch it drain. Where it pools, the gutter has sagged. Re-fix or replace the brackets, adjusting them so the gutter has a slight, even fall toward the downpipe.

Step 3: Reseal Leaking Joints

For a drip at a joint, dry the area, then apply gutter sealant to the joint or replace the rubber seal in the connector. Make sure the sections are properly clipped together.

Step 4: Replace a Cracked Section

If a length of gutter is cracked or split, unclip it from the connectors and brackets and fit a matching replacement section, sealing the joints as you go.

Step 5: Test With Water

Flush the whole run with the hose again to confirm water flows freely to the downpipe with no leaks, pooling, or overflow.

Pro Tips to Prevent This Problem

• Never overreach from a ladder, move it along regularly and have someone foot it for safety.
• Clear your gutters at least twice a year, especially in autumn, to prevent blockages.
• Fitting gutter guards or leaf screens reduces how often you need to clear them.

When to Call a Professional

Call a professional for gutters on a second storey or any height you cannot safely reach, for extensive damage, or for metal guttering that needs specialist repair. Working at height is genuinely dangerous, so if you cannot reach the gutter safely from a stable ladder, leave it to someone equipped for the job.

Frequently Asked Questions

Why is my gutter overflowing?

The most common cause is a blockage from leaves and debris in the gutter or downpipe. Clearing it out and flushing with a hose usually solves overflow problems immediately.

How do I stop my gutter leaking at the joint?

Dry the joint, then apply gutter sealant or replace the rubber seal in the connector, making sure the sections are clipped together properly. This stops most joint leaks.

Why is my gutter sagging?

Sagging means the brackets have loosened or broken, letting water pool. Re-fix or replace the brackets and adjust them so the gutter falls slightly and evenly toward the downpipe.

Final Thoughts

A broken gutter is usually a straightforward fix that pays off by protecting your walls and foundations. Clear blockages first, re-secure any sagging sections, reseal leaking joints, and replace cracked lengths, then test the whole run with water. Keep your gutters clear twice a year, and leave any high or hard-to-reach work to a professional, your home will stay dry and well protected.

Gutter sagging too? Read how to fix a sagging gutter.