What Overflowing Gutters Tell You After Heavy Rain

A waterfall over the front walk makes overflowing gutters easy to spot. Finding the reason takes a little more observation. Grand Rapids recorded 1.07 inches of rain and thunder on July 27. If a shower sent water over the eaves at your West Michigan home, try to remember where it first spilled. A narrow stream below a roof valley tells a different story than an entire gutter running over its front edge.

Watch the outlet before you look up

From a sheltered spot after lightning has passed, check the end of the downspout. Is water coming out? If the gutter is spilling and the outlet is nearly dry, debris may be blocking the drop or an elbow. If the outlet is flowing well, note whether the spill happens only beneath a valley, where two roof slopes send water to one spot.

Watch where the discharge ends. A disconnected extension can send roof runoff straight back toward the house even when the gutter itself is doing its job. If the downspout feeds a buried line, water backing up at that connection is worth pointing out. An installer needs to know where the route stops working.

When overflowing gutters need more than cleaning

Take a side-on photo from the yard on a dry day. A dip between brackets or a section pulling away from the fascia gives the installer a place to check pitch and support. Water running down the face of the fascia behind the gutter calls for a look at the roof edge and drip detail. A wider gutter alone may leave that problem in place.

Before approving a replacement, ask the installer to explain the outlet location, downspout route and how the fascia will support the new section. Leave ladder work and clearing roof valleys to someone equipped for it.

If water also appears at the top of a nearby window, compare the timing with our window leak guide. For a spill you can reproduce during ordinary rain, send Horizon the location and a photo. An image with the outlet and the overflow in the same frame is particularly helpful.