Gutter Sizes in the Tri-Valley & East Bay

Brothers Gutters San Ramon forms 5 inch, 6 inch and 7 inch seamless gutters on site. 5 inch fits most homes, 6 inch handles roughly 40 percent more water for large or steep roofs, and 7 inch is for commercial buildings and very large roof areas. Ask your Solutionist about anything larger.

A 5 inch gutter works with one downspout on runs under 40 feet. Past 40 feet it should have two downspouts. If a run over 40 feet cannot have two downspouts, or the run is longer than 60 feet, stepping up to 6 inch is the better choice.

Yes, a big one. A 6 inch gutter is only an inch wider than a 5 inch, but it can handle about 40 percent more water. That extra capacity is often the difference between a gutter that keeps up with a winter downpour and one that sheets water over the front edge.

Roof surface area, pitch and the shape of the roofline matter as much as the weather. Upper roofs draining onto lower gutters, inside valleys where water moves fast, and long runs with few downspouts all push toward a larger size. A Solutionist measures these on site rather than defaulting to one size for every house.

Yes. Mixing sizes within one system is a cost-effective way to add capacity only where you need it, such as 6 inch on a big rear roof plane and 5 inch on smaller sections. The Solutionist maps out which runs need the extra room during the estimate.

When rainwater shoots past the front edge of the gutter, the trough is too narrow for how fast water comes off the roof. Steep pitches and inside valleys are common causes. A wider gutter catches that water, which is why homes with repeated overshooting in winter storms often move to 6 inch.