Short answer: of the two gutter materials Gutter Solutions LLC forms on site, aluminum suits most homes here because it cannot rust and comes in baked-on colors. Copper is the bare, soldered choice for historic homes and feature elevations.
Hold real finish samples against your trim before you choose.
What each metal is like to live with in coastal Georgia, with coated steel in the last column as a reference point. No brochure language and no invented lifespans.
| Compare | Aluminum | Copper | Steel (reference) |
|---|---|---|---|
| What protects it | A natural oxide film under a baked-on finish | Its own patina, which forms over time | A zinc coating, often painted |
| Can it rust? | No | No | Yes, once the coating is breached |
| In salt air | Holds up well; scratches and bare cut edges can pit | Holds up well; salt speeds up the patina | Rust starts at scratches and cut edges |
| Look | Baked-on finish in a wide color range | Bright, then brown, then blue-green | Painted, or plain galvanized |
| Corners and ends | Sealed and fastened | Soldered | Usually sealed and fastened |
| Weight and stiffness | Lightest; a ladder can dent it | Much heavier than aluminum | Heavy, and the stiffest of the three |
| Relative cost | The economical standard | The most expensive | Usually more than aluminum |
| Best fit | Most homes, coast and inland | Historic homes, entries, feature walls | Inland walls that take knocks |
Steel is shown for reference only. Aluminum and copper are both formed seamless on site; for why that matters, see seamless and sectional gutters compared.
A copper half-round run and round copper downspout from one of our jobs.
Salt spray does not stop at the beach. On a breezy day it settles on eaves along the marsh and the sounds as well, and chlorides are what wear on metal. Aluminum shields itself with a thin oxide film that re-forms when scratched, but salt can start small pits wherever the finish is broken or a cut edge is left bare.
Copper takes salt in stride; the sea air mainly speeds up its patina. Coated steel is the most exposed of the three, because rust begins wherever its coating is breached.
That matters most on island and waterfront homes: St. Simons and Jekyll in Glynn County, Tybee and Wilmington Island near Savannah, the waterfront in St. Marys, and the marsh edge at Darien.
Same shape, different character. K-style gutters are the most common profile on homes here, so they show the contrast best. Steel is included for reference.
Painted at the mill with a baked-on finish, so the color is in place before the coil reaches the roll-former. Light enough to leave the fascia unstressed.
Arrives bright and changes on the house: brown within months, blue-green over years of weather. Corners and end caps are soldered rather than sealed.
The stiffest of the three against ladders and knocks. Its protection is a coating, so scratches deserve attention, especially near salt water.
Other shapes are compared in the profiles we form on site.
Two different metals touching in rainwater behave like a weak battery, and the less noble one gives itself up. On the coast, salt makes that water a better conductor.
Water that crosses copper picks up traces of dissolved copper. Where it drips onto aluminum or galvanized steel, copper deposits on the surface and the less noble metal corrodes around it.
Copper drains into copper. A copper bay roof or accent gets copper gutters and downspouts below it, never aluminum.
A galvanized screw in a copper gutter, or a bare steel fastener in aluminum, sets up a small galvanic cell at the hole. The fastener or the metal around it gives way first, often leaving a rust streak down the fascia.
Hangers and fasteners are matched to the gutter metal: copper or compatible stainless hardware on copper, and hardware made for aluminum gutters on aluminum.
The chain hangs from an outlet in the aluminum trough, so copper touches aluminum right where the water runs. Each wet spell turns that contact point into a small battery, and the aluminum is the side that corrodes.
The chain hangs from an adapter that suits the aluminum, so copper never touches the trough. Where the look calls for copper throughout, the gutter above it is copper too.
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The right metal is the one that suits the house, the exposure and the metals already on it, decided at your estimate rather than from a catalog.
Gutter Solutions LLC
Start from the house rather than the metal. Three situations cover most homes and buildings.
Aluminum. It suits brick ranches, new subdivisions and raised coastal homes alike, every profile is made in it, and the baked-on finish comes in colors to match most trim. See how a seamless gutter goes up.
Copper, often in the semicircular half-round profile, with a copper rain chain at the entry in place of a closed downspout. Copper is heavy, so the fascia is checked before it goes up.
Aluminum in the box profile or the D commercial profile, with outlets and downspouts sized to the roof area each run drains. On a long eave, the light metal keeps the load on every hanger down.
Still have a question? The quickest answer is a phone call, and we will talk it through with you.
(912) 202-0537No. Rust is iron oxide, and aluminum is not an iron-based metal, so it cannot rust. Salt can still pit bare aluminum over time, which is why the baked-on finish, sealed ends and matching fasteners matter more on an island or marsh-front house than they do inland.
Eventually, in most settings. New copper is bright, turns brown within months, and over years of weather can develop the blue-green patina. Salt air tends to speed that up. The patina is not damage: it is the layer that protects the metal underneath.
Yes, as long as the two never touch and no copper runoff drains onto aluminum. A typical layout puts copper on the front entry or porch with its own downspouts, and aluminum on the remaining elevations.
Much heavier. Copper is a far denser metal, so a copper run puts more load on each hanger and on the fascia behind it. Before copper goes up, the fascia has to be sound; soft boards are replaced first.
It depends on the house and how long you plan to own it. Copper costs considerably more than aluminum, needs no paint and suits historic and custom architecture. For most homes, a seamless aluminum system in the right width and color is the better value.
They can. Water that lingers on copper picks up copper salts, and where it drips slowly onto light brick, stucco, concrete or painted trim it can leave blue-green marks. Carrying copper downspouts or a rain chain into a basin, a gravel bed or a drain line keeps that water off the walls and the walk.
We bring color and finish samples to the house, look at how exposed each elevation is, and write down the metal and hardware we recommend, free.
Call or text(912) 202-0537Serving coastal and inland Georgia across 27 counties, plus the SC Lowcountry.
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