5-inch or 6-inch gutters?

5-inch is standard for most homes. 6-inch handles higher roof areas and heavier rainfall.

Seamless or sectional?

Seamless is superior (fewer leak points) but requires professional fabrication on-site. Sectional is DIY-friendly.

Aluminum GuttersGenerating image…

Gutters & Drainage

Gutters

Budget: $3-$6/ft (DIY sectional) | Mid-range: $6-$12/ft (professionally installed seamless) | Premium: $15-$25/ft (heavy gauge, half-round, or copper)

Aluminum Gutters: Seamless & Sectional Rain Gutter Systems (2026)

Prepared by Lumberama's Building Materials Team

|Last updated May 25, 2026|Sources & methodology

Aluminum gutters are the most popular residential rain gutter material, offering an excellent balance of durability, affordability, and corrosion resistance. Available in K-style and half-round profiles, they can be purchased as sectional DIY pieces or custom-fabricated seamless by professionals. They direct roof runoff away from foundations.

Key Features

Lightweight and corrosion-resistant; K-style and half-round profiles; 5-inch and 6-inch residential sizes; Seamless custom fabrication available; 25+ factory-baked color options

Specifications

Material: .027 or .032 gauge aluminum | Profiles: K-style

half-round | Sizes: 5" and 6" | Lengths: 10 ft sections (sectional) | Colors: 25+ baked enamel | Hangers: hidden or spike and ferrule

Applications

Residential roof rainwater collection; Foundation protection from water damage; Directing runoff to downspouts; Rain barrel collection systems; Preventing soil erosion around home

Installation Overview

Attach fascia brackets or hidden hangers every 24-36 inches. Slope gutters 1/4 inch per 10 feet toward downspout locations. Connect sections with slip joints and sealant. Install end caps and outlets. Connect downspouts at corners and mid-run as needed.

Pros & Cons

Pros

✓ Lightweight and easy to install; Corrosion-resistant; Wide color selection; Seamless option eliminates leak points

Cons

✗ Can dent from ladders and debris; Sectional joints can leak; Must maintain proper slope; Requires regular cleaning

Top Brands

Amerimax

Spectra Metals

Senox (seamless)

Code Requirements

IRC R801.3 requires roof drainage. Gutters should be sized for local rainfall intensity. Must slope toward downspouts. Downspout discharge must direct water away from foundation per IRC R401.3.

Buying Tips

Seamless gutters are worth the professional installation cost for fewer leaks; Choose .032 gauge over .027 for added dent resistance; Install gutter guards at the same time to reduce maintenance