How to Clean Gutters

Clean gutters carry thousands of gallons of roof runoff away from your house every year — clogged ones dump it right against your foundation, behind your siding, and under your roof edge. A weekend spent up the ladder now beats a $10,000 foundation or fascia repair later.

What you’ll need

• An extension or step ladder — tall enough to reach the gutter without standing on the top rungs
• Heavy work gloves — wet leaf sludge hides screws, roofing nails, and sharp metal edges
• Safety glasses — you’ll be flinging grit and flushing water at eye level
• A gutter scoop or narrow trowel — plastic scoops won’t gouge the trough coating
• A bucket with a hook — hang it off the ladder so both hands stay free
• A tarp or drop cloth — catch debris on the ground for a five-minute cleanup instead of an hour of raking
• A garden hose — long enough to reach the far corners of the roof
• A pistol-grip or jet nozzle — a tight stream blasts packed downspouts clear
• Contractor trash bags — or reusable lawn-and-leaf bags for the compost pile
• Gutter seam sealant — for resealing any drips you find while you’re up there

Step 1: Set the ladder right and never skip this

More people are hurt cleaning gutters than by the gutters themselves. Set your ladder on firm, level ground at the classic 4-to-1 angle — one foot out from the wall for every four feet of height. A stabilizer bar (ladder standoff) rests against the roof instead of the gutter, so you don’t crush the aluminum and you gain a stable, wide base. Keep your hips between the rails and move the ladder often instead of overreaching.

Safety first: Never lean an aluminum ladder or run a pressure washer near overhead power lines, and don’t clean gutters solo on a two-story home — have someone foot the ladder. If your roof is steep, three stories, or you’re not steady on a ladder, this is a job worth handing to a pro.

Step 2: Scoop out the bulk debris

Start near a downspout and work away from it so you’re never pushing muck toward a drain. Use the scoop to lift out leaves, shingle grit, and that black composted sludge, dropping it onto your tarp or straight into the hung bucket. Wear the gloves the whole time — hidden nail points and wasp nests are the two most common surprises up there.

Step 3: Flush the troughs

Once the loose stuff is out, run the hose from the high end of each gutter run toward the downspout and watch how the water moves. It should sheet along and disappear down the drop. Standing water means the gutter has lost its pitch — you want a slight slope, roughly a quarter inch of drop for every ten feet, toward the downspout. If a whole section holds water, loosen the hangers and re-set the slope.

Step 4: Clear the downspouts

Downspouts are where real clogs hide. Put a jet nozzle on the hose, feed it into the top of the downspout, and blast downward. If water backs up and overflows the top, the spout is packed — tap the length of it to find the plug, then flush from the bottom up. A plumber’s auger or a wet/dry vac set to suck from the bottom opening will pull out a stubborn mat of leaves that water alone won’t budge.

Common mistake: Don’t reach for a pressure washer as your first move on the downspout — the pressure can blow apart crimped seams and spray filthy water up under your soffit. Save the pressure washer for caked-on exterior gutter faces, at low pressure and a wide tip.

Step 5: Check the drainage at the ground

Water that clears the downspout only to pool at the foundation hasn’t really gone anywhere. Make sure each spout ends in an extension or splash block that carries runoff at least four to six feet away from the wall. Downspout extensions and splash guards from the rain-diffusion aisle are a cheap fix that does more to protect a basement than the gutter cleaning itself.

Step 6: Seal leaks and repair while you’re up there

With everything clean and dry, look for rust spots, pinholes, and dripping seams — joints are the usual culprits. Wipe the area, let it dry, and run a bead of gutter-and-flashing sealant from the caulk aisle (DAP and Gorilla both make a rubberized, paintable version) along the inside of the seam. Tighten any loose hangers with your hand tools so the run keeps its pitch through the next storm.

Step 7: Decide whether to add guards

If you’re tired of doing this three times a year under an oak, gutter guards are worth a look. Mesh and micro-mesh screens keep leaves out while letting water through; you can find guard mesh and fine screen material in the screen and shade cloth aisle. Guards reduce the mess but don’t eliminate maintenance — grit and pollen still need a rinse once a year.

Frequently asked questions

Clean gutters are one of the highest-value hours you’ll spend on your house all year. Grab your ladder, gloves, and a scoop, pick a dry day, and knock it out — and if you need a hand choosing a stabilizer bar, the right sealant, or a set of guards, your local independent hardware store can set you up today. Questions on any step? Ask us here.