You’re watching a storm sheet water straight over the gutter edge instead of into it, or worse, the downspout’s bone dry while everything above it overflows. Either way, something’s blocked, and left alone, that water ends up exactly where you don’t want it: pooling near your foundation, seeping into the basement, or rotting the fascia board behind the gutter. The good news is that knowing how to clean a clogged gutter is usually a 20 minute job with tools you probably already own. Below is a step by step method for clearing both the gutter channel and the downspout, including a ladder free option if heights aren’t your thing.
To clean a clogged gutter, put on gloves and scoop debris out of the channel by hand or with a scoop, working toward the downspout. Flush the gutter with a hose, then run water into the downspout from the top. If it backs up, feed a plumber’s snake down to break up the clog, then clear the bottom elbow.
Signs Your Gutter or Downspout Is Clogged (and Where)
The fix depends on where the clog actually is, so start here:
- Water spills over the gutter edge in a storm: the channel itself is full of debris.
- Little or no water comes out the downspout bottom: the clog is inside the downspout.
- Water exits the spout fine but pools near your foundation: the blockage is further down, in a buried or underground drain line..
- Other tells: a gutter that's started to sag, dark streaks on the siding below it, gurgling sounds during rain, or a patch of unusually green, fast growing grass near the outlet.
What You'll Need
- Safety: thick suede or leather gloves, eye protection, and if you're going up, a sturdy extension ladder with someone to foot it.
- For the ladder route: a garden trowel or gutter scoop, a garden hose with an adjustable nozzle, and a hand auger or plumber's snake (around 25 feet, about $30) for stubborn downspout clogs.
- For the ground only route: a telescoping gutter cleaning wand or pole attachment that hooks to your hose, and a wet/dry shop vac with a hose adapter for pulling debris down from below.
- Most of these tools you likely already own: the auger and telescoping wand are the two worth picking up if you don't.
Step 1: Clear the Gutter Channel First
It’s tempting to head straight for the downspout, but skip this step and you’ll just re-clog it: any debris still sitting in the gutter will wash down and jam the spout you’re about to clear.
Working from a securely footed ladder (or from the ground on a single story roof if you can safely reach), move along the channel toward the downspout outlet. Scoop leaves, twigs, and grit out by hand or with a garden trowel, dropping everything into a bucket as you go, don’t push it toward the downspout or you’ll just relocate the clog.
Once the channel is clear, give it a light hose rinse from the far end toward the outlet. Watch the water: if it runs freely to the downspout opening and pools there, the channel is done and any remaining blockage is further down.
Step 2: Unclog the Downspout
First, find the clog (30 second test)
Before reaching for any tool, to clean a clogged gutter drain disconnect the bottom elbow or extension, the angled piece where the downspout meets the ground or a buried drain line. This matters even more if that extension feeds an underground pipe: running water or a snake down a still connected spout can push debris straight into the buried line, turning an easy fix into a much harder one. With the bottom open, run water in from the top of the downspout. If it flows freely out the bottom, the downspout itself is clear and the clog is elsewhere.
Flush from the top with a hose
If water backs up instead of flowing through, start with the simplest fix. Climb to the top of the downspout (or use a hose attachment from the ground, more on that below) and feed the hose nozzle a few inches into the opening. Turn the water on full force in short bursts rather than one steady stream, this creates pressure surges that dislodge packed debris more effectively than a constant flow. Watch the bottom opening as you go. If you see water start to trickle, then flow, the clog is breaking up. Keep flushing until the water runs clear and at full strength, confirming the full length of the downspout is open.
Still blocked? Use a plumber's snake or auger
If the hose alone doesn’t clear it, feed a hand auger or plumber’s snake down from the top, turning the crank clockwise as you push. The turning motion helps the tip catch and break up compacted debris rather than just shoving it further down. Work in short sections, retracting and re-inserting the snake as you feel resistance, rather than forcing it straight through. Once you feel the blockage give way, run the hose through again from the top to flush out the loosened debris. Reconnect the bottom elbow only after water runs clean and unobstructed through the full length of the downspout.
How to Clean a Clogged Gutter From the Ground (No Ladder)
Attach a telescoping wand or curved hose attachment to your garden hose and extend it up into the gutter channel, flushing debris toward the downspout outlet as you walk the length of the roofline. Once the channel’s flowing, turn your attention to the downspout itself: clear the bottom opening by hand, then either feed a short auger up from below or reverse-flush the hose upward from the bottom elbow to knock the clog loose. If that doesn’t budge it, a wet/dry shop vac fitted to the bottom opening can pull the debris straight out.
This approach works best on single-story homes with light to moderate buildup. Heavier compaction, second-story gutters, or a clog that won’t move with reverse-flushing usually means it’s time for a ladder, an auger from the top, or a professional.
When the Clog Is in a Buried (Underground) Drain
If water exits the downspout fine but still pools at the foundation, or the pop-up emitter out in the yard stays dry during rain, the clog is in the buried drain line, not the downspout itself.
It’s still worth a DIY attempt. Disconnect the downspout at the above-ground transition and locate both ends of the buried run: the connection point and the daylight exit or pop-up emitter. Flush from whichever end sits higher with a hose on full force, then feed a longer drain auger in from whichever end you can reach, working it gently rather than forcing it.
Be honest with yourself about the pipe, though. If the line is older corrugated pipe, or you suspect tree roots have grown into it, a garden hose won’t build enough pressure to clear it, and an auger can get stuck or damage the line further.
At that point, stop. Persistent buried clogs, root intrusion, or a collapsed section need a powered auger or hydro-jetting, which means calling a professional.
Keep It From Clogging Again
The easiest way to avoid repeating this job is a regular schedule: clean gutters and downspouts twice a year, spring and fall, and more often if you’re under heavy tree cover or after a major storm.
A few small additions help too. Downspout strainers or outlet guards at the top openings catch debris before it packs in, and gutter guards can cut down on buildup, though they reduce cleaning rather than eliminate it entirely. Trimming back overhanging branches keeps leaves and seed pods out in the first place, and checking the flow during the next heavy rain confirms everything’s actually working.
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When to Call a Pro
Some situations call for a professional, and that’s not a failure, it’s just a smart call. Two-story homes, steep or slick roofs, or simply not feeling confident on a ladder are reasons enough on their own; no gutter is worth a fall.
It’s also time to hand it off if a plumber’s snake won’t clear the blockage, you’re dealing with a buried line or suspected root intrusion, or you’ve spotted signs of real damage like a sagging gutter, active leaks, or a rotted fascia board.
A professional crew brings extension equipment, vacuums, augers, and jetting tools that can clear what a homeowner’s kit can’t, plus a trained eye to catch small repairs before they become expensive ones. If that’s where you’ve landed, professional gutter cleaning can take it from here.
Conclusion
Clear the gutter channel first, flush and snake the downspout, work from the ground if you’d rather skip the ladder, and check the buried drain line if water’s still pooling at the foundation, that’s the whole sequence, and for most clogs it’s a job you can finish in an afternoon.
Just know your limits: heights and buried, root-clogged lines are where DIY should stop and a professional should start. If you’d rather not deal with any of it, or you’ve hit one of those limits, a quick call gets it handled safely and thoroughly.
FAQ's
Attach a telescoping wand or curved hose attachment to reach the gutter from below and flush it toward the downspout outlet. Clear the bottom opening by hand, then either feed a short auger up from the bottom or reverse-flush the hose upward through the elbow. A wet/dry shop vac on the bottom opening also works well for pulling out stubborn debris.
This usually means debris, leaves, twigs, or granules from your shingles, has packed together somewhere inside the downspout. Disconnect the bottom elbow and run water in from the top; if it doesn’t flow through, the blockage is confirmed, and flushing with a hose or feeding in a plumber’s snake will typically clear it.
It’s not recommended. Pressure washers can split seams, dent aluminum downspouts, or blow a clog further into a buried drain line rather than out. A garden hose on full force, paired with a plumber’s snake for stubborn clogs, clears most blockages without risking damage to the gutter system.
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