Gutter Types
K-style (ogee): Most common residential gutter. Flat back mounts flush against fascia. Front profile resembles crown moulding. Holds more water than half-round (same width). Available in 5-inch and 6-inch widths. Works with all home styles.
Half-round: Semi-circular trough shape. Traditional and elegant appearance. Best for historic, Mediterranean, and craftsman homes. Less water capacity than K-style. Requires special brackets (hung from below, not nailed to fascia). More expensive than K-style.
Box gutter: Large rectangular profile. Commercial and industrial applications. High-capacity water handling. Custom fabricated on site.
Fascia gutter: Integrates with or replaces the fascia board. Clean, minimal appearance. Common in modern architecture.
Materials
Aluminum (most popular): Lightweight, rust-proof, and affordable. Available in sectional (DIY) and seamless (professional). 30+ colors. Lifespan: 20-30 years. Cost: $4-$9 per linear foot (installed). Best overall value.
Vinyl: Cheapest option. Lightweight, easy DIY installation (snap-together). No rust or corrosion. Becomes brittle in extreme cold. Fades in UV. Lifespan: 10-20 years. Cost: $3-$6 per linear foot (installed).
Steel (galvanized): Very strong. Handles heavy snow and ice loads. Can rust over time. Heavier than aluminum. Lifespan: 15-25 years. Cost: $6-$12 per linear foot (installed).
Copper: Premium appearance (develops green patina over time). No painting needed. Soldered joints (watertight). Lifespan: 50-100+ years. Cost: $15-$30+ per linear foot (installed). Best for historic or high-end homes.
Zinc: Self-healing (patina seals scratches). Very long lifespan (80+ years). Low maintenance. Cost: $10-$25 per linear foot (installed).
Sizing
Standard residential: 5-inch K-style: handles up to 5,520 square feet of roof area. 6-inch K-style: handles up to 7,960 square feet of roof area. 5-inch half-round: handles up to 2,500 square feet. 6-inch half-round: handles up to 3,840 square feet.
When to upsize to 6-inch: Roof area exceeds 5,000 square feet. Steep roof pitch (water reaches gutter faster). Heavy rainfall area (Southeast, Pacific Northwest). Long gutter runs (over 35 feet).
Downspout sizing: 2x3 inch: standard for 5-inch gutters. 3x4 inch: for 6-inch gutters and high-capacity. Round downspouts: 3-inch or 4-inch diameter.
Downspout placement: One downspout per 20-35 linear feet of gutter. Place at low ends of gutter runs. Route water at least 4-6 feet from foundation. Extend with splash block, downspout extension, or underground drain.
Cost
Seamless aluminum (most common): Materials and installation: $6-$12 per linear foot. Average home (150-200 feet): $900-$2,400. With gutter guards: add $6-$12 per linear foot.
By material (installed): Vinyl: $3-$6/ft. Aluminum (sectional): $4-$8/ft. Aluminum (seamless): $6-$12/ft. Steel: $6-$12/ft. Copper: $15-$30+/ft. Zinc: $10-$25/ft.
Additional costs: Gutter guards/leaf protection: $6-$12/ft ($900-$2,400 total). Downspout (each): $5-$8/ft (10-foot sections typical). Fascia board repair/replacement: $6-$20/ft. Old gutter removal: $1-$3/ft.
Total project cost: Budget (vinyl DIY): $450-$1,200. Mid-range (seamless aluminum): $900-$2,400. Premium (seamless aluminum + guards): $1,800-$4,800. High-end (copper): $2,250-$6,000+.
DIY vs Professional
DIY (sectional): Sectional aluminum or vinyl gutters from home centers. Pre-cut 10-foot sections, snap or screw together. Adequate for simple rooflines. Seams can leak over time. Cost: $3-$6/ft (materials). Skills needed: ladder safety, measuring slope, cutting metal.
Professional (seamless): Machine on truck forms seamless gutters on-site. No seams = fewer leak points. Custom fit to exact measurements. Much faster installation. Cost: $6-$12/ft (installed).
When to go professional: Multi-story homes (safety). Complex rooflines (valleys, dormers). Seamless gutters desired (requires machine). Old gutters need removal. Fascia board repair needed.
Gutter slope: Gutters must slope toward downspouts. Standard slope: 1/2 inch per 10 feet (1/4 inch per 10 feet minimum). For runs over 35 feet: slope from center to downspouts at each end.
Gutter guards: Micro-mesh: best protection, highest cost. Reverse curve: deflects leaves, lets water in. Screen: basic protection, affordable. Foam insert: inexpensive, shortest lifespan. Brush: bristle inserts, easy to install.