7 Signs You Need New Gutters (Not Just a Cleaning)

Gutters last 30-40 years if they're decent aluminum, installed right, and maintained. When they fail, they usually don't fail dramatically — they fail slowly, and homeowners live with the symptoms for years before calling.

Here are the seven tells we see every week across Nassau and Suffolk. If you have any two of these, your next call shouldn't be for a cleaning.

1. Peeling or blistered paint on the fascia

The #1 symptom of a failing gutter system. Water is wicking behind the gutter, saturating the fascia board, and rotting it from behind. Once paint blisters, the fascia has been wet for months.

A cleaning won't fix this. The gutter pitch, back-flashing, or hanger integrity is the problem. Fascia repair plus gutter replacement runs $2,100-3,800 on a typical LI home.

2. Mystery puddles at the foundation

Water pooling within 4 feet of the house after rain means the gutter isn't catching or the downspout isn't discharging. Check the downspout outlet during rain — if water shoots sideways at the first elbow instead of traveling down, the gutter is overflowing upstream.

Persistent foundation moisture is how basement flooding starts. If you've had one finished-basement water event, the gutter is almost always part of the root cause.

3. Visible sag in any 10 ft run

Hanger spacing matters. Old gutters hung on spike-and-ferrule (which LI homes installed from the 1950s-1980s) pull loose as ferrules deform and spikes wallow out. Once sag sets in, water ponds in the sag and accelerates the hanger failure.

A single sag can sometimes be re-hung ($150-250 repair). Multiple sags across multiple runs means the hanger system has reached end-of-life across the whole install — replacement is the honest call.

4. Seams leaking at corners

K-style corners are the highest-stress point in a gutter system. Leaks here usually mean the butyl seam sealant has dried, cracked, and debonded — which happens in year 12-18 on cheap caulk, year 20-25 on quality butyl.

One leaking corner is a repair ($175-275). Three or more corners leaking means the whole system is at the same age — and replacement beats whack-a-mole repairs.

5. Gutters that hold water

Fill a gutter with a garden hose after a clean. If water sits in any section an hour later, you have a pitch problem. Gutters should pitch 1/4" per 10 ft toward the downspout.

Re-pitching ($200-400 per run) works once. If multiple runs need re-pitching, the whole system's hangers are sagging — replacement.

6. Rust streaks on siding or foundation

If you have galvanized steel gutters (common on pre-1990 homes) and see orange streaks down the siding, the galvanizing has worn through. Steel gutters can't be re-coated and should be replaced with aluminum.

Even aluminum gutters can cause white streaking from heavy calcium-laden runoff. That's a cleaning issue, not a failure.

7. Ice dam damage in the last 3 winters

If you've had a 10+ ft section torn off by ice, the rest of the gutter system went through the same stress. Even sections that survived the event have compromised hangers and seams. Ice-dam homes are usually replacement candidates within 2-3 years of the first damage event.

When repair still makes sense

One sag. One detached downspout. A single leaking corner. A torn section from a recent branch fall. These are repair jobs ($150-450) and we'll tell you if that's the right call instead of replacement.

The tipping point is when repair costs cross 30% of replacement. At that point you're throwing good money at a failing system.