IKO Gutter Replacement Nationwide

IKO Gutter Replacement: The San Francisco Owner’s Guide

We stock and install IKO-compatible gutter replacement components across San Francisco, with most residential jobs running between $850 and $2,400 installed depending on linear footage, gutter profile, and access. We carry IKO’s K-style and half-round profiles in aluminum and galvalume, and we can usually have your replacement scheduled within a week. The way most San Francisco homeowners discover their IKO gutters have failed is the same every winter: a steady drip off the fascia during a December storm, a dark stain running down the stucco, or water pooling at the foundation line after a heavy fog burn-off. Erik Lindgren has walked enough Sunset District Victorians to know exactly what that looks like.

Call (831) 228-3330

Key Takeaways

• IKO gutter replacement in San Francisco typically runs $850 to $2,400 installed
• We stock IKO-compatible K-style and half-round profiles on our trucks
• Salt air near the coast accelerates gutter seam and bracket failure
• Every job includes a written price before work begins and our 365-Day Done Right Promise

Which IKO Models This Applies To

IKO’s gutter line is built around two primary profiles: the 5-inch K-style Ogee and the 6-inch half-round. The K-style is what you’ll find on most San Francisco homes built after 1960, including the bulk of the Sunset, Richmond, and Parkside districts. The half-round shows up more often on older Edwardian and Victorian stock, where it matches the period look. The compatibility gotcha we see constantly: IKO’s 5-inch K-style uses a 2-inch-by-3-inch downspout neck, not the 2-by-3 rectangular common on GAF and CertainTeed systems, so you cannot swap in another brand’s elbow without an adapter. If you’re unsure what you have, check the inside face of an end cap. IKO stamps a small diamond logo with a two-digit year code there. If the stamp is gone but the profile measures 5 inches across the top opening with a flat bottom and a decorative front lip, you have the K-style. We recommend OEM IKO hangers and end caps where they’re still available, because the bracket spacing was engineered for 24-inch centers, and aftermarket hangers often sag at that span. For downspout extensions and elbows, quality aftermarket aluminum in the matching gauge works fine and saves real money.

Birchbark Roofing San Francisco is an independent service provider and not affiliated with IKO. We do stock parts for GAF, Owens Corning, and CertainTeed gutter systems as well, so if your home has a mixed system, we can handle it in one visit.

Signs Your IKO Gutter Replacement Is Failing

• Water dripping from the fascia board behind the gutter. This almost always means the back flange has pulled away from the fascia due to rusted or broken brackets. In San Francisco’s salt air zones west of 19th Avenue, we see galvanized bracket failure in as little as 6 to 8 years.
• Gutter pulling visibly away from the roofline at one end. That’s a classic IKO bracket fatigue pattern. The end brackets carry the most load, and once one lets go, the rest follow within a season.
• Standing water in a gutter that looks level. IKO’s Ogee profile is prone to trapping debris at the inside corners because the front lip curls inward more than comparable systems. If water sits after a rain, the slope has likely flattened at the hanger points.
• Rust streaks down the exterior face. This means the factory coating has worn through at the seam, and ozone exposure near the coast accelerates it. Once rust starts, the seam will open within one to two winters.
• Downspout separated at the elbow joint. The 2-by-3 neck on IKO downspouts is a weak point. We reused old downspouts on a Noe Valley job last spring, and the elbow crumbled in a week. We don’t reuse anymore.

Replacement Cost & What’s Included

Here’s what IKO gutter replacement costs in San Francisco as of 2025. The range is wider here than in other cities because access varies so much: a single-story Marina flat with a ladder is night and day from a three-story Sunset Victorian with a steep pitch and no alley access.

• 5-inch K-style aluminum, 50 linear feet, single story: $850 to $1,400 installed
• 5-inch K-style aluminum, 100-plus linear feet, two stories with pitch: $1,600 to $2,400 installed
• 6-inch half-round aluminum, 50 linear feet: $1,100 to $1,800 installed
• Replacement hangers, end caps, and reseal on existing IKO gutters: $180 to $420

Every quote includes the full run of gutter, hangers spaced to IKO spec, end caps, downspout adapters where needed, and removal and haul-away of the old material. You’ll see a written price in dollars before any work starts. If the job needs a permit pull or a structural repair to the fascia, that’s a separate line item and we walk you through it before you sign anything. The install carries our 365-Day Done Right Promise: if it isn’t right, we make it right. No renegotiation, no fine print.

DIY or Call Us?

A homeowner who’s comfortable on a step ladder can absolutely replace an IKO downspout elbow or clean out a clogged run. A hanger that has popped from the fascia can sometimes be re-secured with a longer screw into sound wood. What you should not attempt yourself is pulling down a full run of gutter on a San Francisco home with any kind of height. Two stories on a sloping lot with a bay window below you is not the place to learn about extension-ladder tie-off. The gutter itself isn’t dangerous in the way a garage spring is, but working off a ladder against a fascia while holding a 10-foot aluminum section in a gusty afternoon? That’s how people end up in the ER, and fog-season gusts off the Pacific don’t help. If you’re on the fence, call (831) 228-3330 and describe what you’re seeing. We’ll tell you honestly whether it’s a weekend fix or a two-person crew job, and there’s no charge for that conversation.

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