In short: a new gutter system on a Jacksonville home is usually 5" or 6" seamless aluminum, priced at roughly $6–$10 and $8–$14 per foot installed. A one-story house with 150 to 200 feet of gutter and its downspouts typically lands between $1,500–$2,800; two-story homes run $2,800–$4,800. We measure first and put the number in writing.
New system or replacement?
About half the installs we price are on houses that never had gutters at all. Plenty of block ranch homes built in Arlington and on the Westside in the 1960s and ’70s went up with nothing on the eaves, and the sand along the slab shows it: a shallow trench under every drip line and dirt splashed up the bottom course of block. The other half are replacements. Old sectional gutters with a seam every ten feet, steel gutters rusting out at the miters, or a builder-grade 5" system that simply cannot carry what a Northeast Florida storm puts on it.
Either way the job looks the same from the ladder: take down whatever is there, check the board behind it, and hang a system that matches the roof it serves.
How we choose the size
Gutter size comes from the roof, not from the house next door. We work out how much roof area drains to each wall, then account for pitch and for valleys, which funnel two slopes into one short stretch of gutter. On a typical single-story Jacksonville home 5" K-style is enough. Large two-story roofs in Mandarin, Nocatee and the Southside subdivisions often need 6", at least on the back wall where most of the roof drains.
- Downspouts: 2×3 on small runs, 3×4 wherever a 6" gutter or a valley is involved. A 3×4 moves roughly twice the water of a 2×3.
- Spacing: an outlet for about every 35 to 40 feet of gutter, and an extra one under any valley.
- Hangers: hidden hangers screwed through the fascia into the rafter tails, about every two feet.
- Pitch: a gentle fall toward each outlet, enough to drain fully without the line looking crooked from the street.
Where the water goes after the downspout
A gutter that empties against the foundation only moves the problem a few feet. On sandy Duval lots we finish each downspout with an extension, a splash block or, where the yard allows, an underground line to a pop-up emitter well away from the slab. If the driveway, a patio or a neighbor’s fence is in the way, we route it before you sign so there are no surprises on install day.
What install day looks like
- Old gutters come down and go on the trailer for disposal.
- The fascia is checked along every run; soft wood is marked and, if you approved it, replaced.
- Gutters are formed in your driveway, cut to length and carried up in one piece per wall.
- Hangers go in, corners are mitered and sealed, outlets are cut and downspouts strapped to the wall.
- A hose runs through every section and downspout before we pack up.
Most single-story houses are finished in a day. Two-story homes and jobs with fascia repair can need part of a second day.
Gutter installation: questions
Do I need a permit to install gutters in Jacksonville?
A like-for-like gutter replacement on a house generally does not need one. HOAs are a different matter: many communities want the color approved first, so check your covenants before the install date.
Should I go 5" or 6"?
Most one-story homes are fine with 5". Go 6" when a wall drains a big or steep roof, or when a valley empties onto a short run.
Can gutters go on a house with no overhang?
Usually yes, with a different hanger or a strip of trim to give the gutter something solid behind it. We will show you the option at the estimate.
Last reviewed October 8, 2026.