7 Signs Your Gutters Need Cleaning

Sixty-three inches. That is what falls on Baton Rouge in an average year (NOAA / U.S. Climate Data), roughly double the national average, and every inch of it lands on your roof and gets handed to a metal trough about five inches wide. That trough only has to be blocked in one spot to stop doing its job.

Which is why gutters here fail on a faster clock than the twice-a-year rule assumes. The good news is that a gutter tells you it is full long before the damage starts. You just have to know what you are looking at. Seven signs, roughly in the order homeowners notice them.

Seven signs, in the order they show up

1. Water sheets over the front lip in a normal rain. Not a storm. A regular afternoon shower. If water is pouring off the outside edge of the gutter in a curtain instead of running to the corner, the channel behind it is packed and the water has nowhere left to go. This is the sign people wait on longest, because it only appears while it is raining and nobody wants to stand outside in it.
2. You can see growth from the driveway. Seedlings, a green fuzz of moss, a fern sticking up over the lip. Plants need soil and standing water, and a clogged gutter supplies both. If something is growing up there, the debris has been wet and rotting long enough to become dirt.
3. Dark streaks run down the outside face of the gutter. Sometimes called tiger striping. Overflowing water carries grit and oxidized asphalt off the shingles and drags it down the face of the aluminum. The stains do not wash off in the next rain, and they mark the exact spots where water has been going over the edge.
4. A visible dip between hangers. A ten-foot run of packed wet debris weighs far more than the hangers were spaced for. Sight down the length of the gutter from one end. It should run flat and straight to your eye. A visible belly in the middle means weight is winning.
5. A downspout that stays dry while the gutter overflows. Put a hand under the downspout outlet during a rain. If nothing is coming out while water is spilling over the trough above, the blockage sits at the drop outlet or in the elbow, and no amount of scooping the flat sections will fix it.
6. Splash-back is staining the siding or the foundation. Water falling from ten feet hits the ground hard and throws mud back against the wall. A band of dirt about a foot up the siding, or eroded mulch in a trench under the eave, both point at the same thing: the gutter above that spot stopped working a while ago.
7. Mosquitoes are worst near the house, not the yard. A gutter holding a few inches of trapped water is a breeding tray nobody thinks to check. Mosquitoes go from egg to adult in as little as four days (CDC / EPA guidance), and West Nile virus is endemic across Louisiana with cases peaking July through October and East Baton Rouge among the parishes hit hardest (Louisiana Department of Health).

How urgent is what you are seeing?

Not every sign means drop everything. Sort what you found into one of three buckets.

Is twice a year enough in Baton Rouge?

The standard advice, spring and fall, was written for a maple in Ohio that drops its leaves over three weeks and then goes quiet. Our tree cover does not work that way. Look at what hangs over most Baton Rouge roofs:

• Pine. Sheds needles nearly year-round, and pine straw mats together into a felt that water cannot pass through.
• Water oak. Drops leaves in fall, then catkins and pollen tassels in spring, then acorns. Three separate seasons of debris off one tree.
• Live oak. Sheds its old leaves in spring, which catches people who only clean in November.
• Crape myrtle and sweetgum. Small, dense litter plus seed balls that jam a downspout outlet on their own.

A home tucked under pine or water oak usually needs three or four visits a year to stay ahead. An open lot with nothing overhanging might get by on one. The tree line over your roof sets your schedule, not the calendar.

What it costs to ignore the list

A cleaning is a small, predictable line item. What it prevents is neither. Overflow runs down the fascia board and into the soffit, and repairing rotted fascia and soffit commonly lands between $900 and $6,800 (This Old House (2026)) depending on how far it spread before anyone noticed.

Below that, water pooling against the slab is a slower and more expensive problem. Baton Rouge sits on expansive clay that swells when saturated and shrinks when it dries, and the repeated movement is what cracks concrete. Foundation repair from water-driven settlement averages around $5,100 (This Old House / Angi (2026)). Both of those bills start as a gutter nobody cleaned.

What we do on a cleaning visit

We hand-clear every run rather than blowing debris around, because a leaf blower moves the top layer and leaves the packed sludge sitting in the bottom of the trough. Then we flush each downspout with water until it runs clear at the bottom, which is the step that separates a cleaning from a tidy-up. While we are on the ladder we check hanger spacing, look at the fascia behind the gutter for soft spots, and confirm the slope still carries water toward the outlet.

You get told what we found, with photos if something needs your attention. And the debris leaves with us. It does not end up in a pile behind your shed.

Frequently Asked Questions