Last Updated: October 23, 2026
Short answer
Hidden hangers clip inside the gutter's front lip and screw through the back into the fascia, holding the gutter without visible hardware. They hold better than the older spike-and-ferrule method, which nails through the whole gutter and works loose as wood moves. They are commonly spaced about every two feet, closer under heavy loads, and need sound fascia.
Key takeaways
- Hidden hangers screw into the fascia through the back of the gutter and brace the front lip from inside.
- Spike-and-ferrule hangers drive a long nail through the gutter; as the wood swells and shrinks, the spikes back out.
- Strap hangers fasten to the roof deck and suit edges with no usable fascia, but they go under the roofing.
- Spacing commonly runs about every two feet, closer where debris, steep roofs or occasional snow add load.
- No hanger holds in soft or rotted fascia; the wood is checked and repaired before anything is hung.
What a gutter hanger has to hold
A gutter hanger carries the gutter, plus everything that lands in it. Gutters of Kent hangs new and re-hung gutters on hidden hangers screwed into sound fascia across Kent and South King County, and sagging gutter repair starts with the hangers, with the work done by licensed and insured contractors. This guide explains the three main hanger types, how far apart they belong and why the board behind them decides whether any of it holds.
The load is larger than it looks. Water weighs a little over 8 pounds a gallon, and a gutter that fills to the lip during a heavy rain, or holds a soaked mat of fir needles and roof grit between storms, puts that weight on each hanger along the run. Kent’s rain arrives as a long season: NOAA’s 1991 to 2020 normals for the Kent station show 96.7 days a year with at least a tenth of an inch, so hangers carry wet loads for months at a time rather than for a few hours a year.
The three hanger types
Hidden hangers
A hidden hanger is a stiff bracket, usually aluminum or coated steel, that sits inside the gutter. Its front hooks under the gutter’s front lip, and a long screw passes through its back, through the back of the gutter and into the fascia. The hanger braces the front edge from inside, so the gutter cannot roll forward under weight, and the screw holds the back tight to the board. From the ground, nothing shows. Hidden hangers are the standard method for seamless gutters and for K-style gutters generally, and they make re-pitching straightforward because each screw can be backed out and re-set.
The term “gutter brackets” is often used for the same thing, though it also covers the exposed cradles that hold half-round gutters.
Spike-and-ferrule
The older method drives a long spike through the front of the gutter, through a tube called a ferrule that keeps the gutter from crushing, through the back of the gutter and into the fascia. It is quick to install, but it has two weaknesses. A smooth nail holds by friction alone, and as the fascia swells in wet months and shrinks in dry ones, the spike walks out a little at a time until the gutter drops. The spike also passes through the gutter face, leaving a visible head and another hole. Spikes backing out at several points along a run are a classic cause of sagging, and replacing them with hidden hangers can fix the run without replacing a sound gutter.
Strap hangers
A strap hanger is a flat metal strap fastened to the roof deck under the roofing and bent out to cradle the gutter. Straps suit roof edges without a usable fascia board, such as exposed rafter tails, and are a common way to hang half-round. Their drawback is that they go under the shingles. Fitting them on an existing roof means lifting roofing at the edge, so they are best installed during a re-roof. Roof repair is not offered, so strap work that disturbs the roofing is coordinated with a roofer; the guide to replacing gutters with a new roof covers that timing.
| Hanger type | How it holds | Strengths | Weaknesses |
|---|---|---|---|
| Hidden hanger | Screws through the gutter back into fascia; braces the front lip | Strong, invisible, adjustable for pitch | Needs sound fascia behind every screw |
| Spike-and-ferrule | Long nail through gutter and ferrule into fascia | Fast and inexpensive | Spikes back out as wood moves; visible heads |
| Strap hanger | Fastened to roof deck under roofing | Works without fascia; suits half-round | Goes under shingles; best during a re-roof |
| Exposed bracket | Screwed to fascia, cradles the gutter | Suits half-round; can be decorative | Visible; still relies on the fascia |
How far apart hangers go
Hidden hangers are commonly spaced about every two feet along a run. They go closer where the load is heavier: under a steep roof that sheds water and occasional snow fast, below a valley, on a 6-inch run that holds more water, and under trees that drop needles into the trough. A hanger also belongs close to each corner and each outlet, where the gutter carries extra weight and joints need to stay still.
Spacing is not only about strength. A gutter flexes between supports when it is loaded, and too wide a gap lets it bow into a shallow dip that holds water. That dip adds more weight in the same place, which bows it further. The gutter slope guide explains why an even fall depends on support at every point, and why gutters sag traces how a single wide gap becomes a failing run.
Snow is light and infrequent here. NOAA normals for SeaTac show about 6.3 inches a year and roughly 1.9 days with an inch or more, so it rarely drives hanger spacing by itself. On metal roofs, where snow can slide off in a sheet onto the gutter, closer spacing and heavier coil earn their place; gutters for metal roofs covers that case.
Screws into sound fascia
Every hanger type except straps depends on the fascia, the trim board along the eave fastened to the rafter ends. A screw holds by gripping wood fibers. In sound wood that grip carries a full gutter. In wood softened by years of water running behind the gutter, the fibers crush and the screw pulls straight out, sometimes as soon as the first heavy rain loads the run.
That is why the walk-around checks the fascia and drip edge before anything is hung, and why damaged boards are repaired before new gutters go up. Adding screws to rotted fascia, or moving a hanger an inch to find a firmer spot, buys little time. Census figures (ACS) put 38.5% of Kent homes as built before 1980. Age is not proof of rot, but where a house has original wood trim and a history of overflow or drips behind the gutter, the board deserves a close look. Gutter and fascia repair explains how that repair is scoped, and water behind gutters covers the drip edge problem that can cause the rot in the first place.
Signs your hangers are failing
From the ground, look for a run that dips between two points, a gap opening between the back of the gutter and the fascia, spike heads standing proud of the gutter face, or water spilling over the back edge rather than the front. Each points to support. A single loose hanger in sound wood is a small gutter repair. Several loose hangers, a run that has kinked, or soft wood behind them points to re-hanging the run, and sometimes to gutter replacement if the gutter itself has bent or corroded. When you want the run checked, Get an Estimate.
Questions about your own house? Call (253) 352-5321 or get an estimate.