Gutters overflowing and water pooling near the foundation means the water is getting to the gutter but not away from the house. In order of likelihood: the gutter is clogged, it is pitched wrong so water sits, the downspouts are too few or too small for the roof area, or the extensions dump water right at the wall. Fix them in that order and most pooling stops.

Cleaning is first and it is free to check: stand in the rain and watch where the water goes over the edge. If it overflows at one spot, that section is clogged or sagging. Pitch is second: a gutter should fall about a quarter inch every ten feet toward the downspout, and hangers that have pulled loose leave low spots that fill and spill.
Downspouts are the fix most homes actually need. A single 2 by 3 inch downspout cannot drain a large roof plane in a Minnesota downpour. Adding a downspout or upsizing to 3 by 4 inch is inexpensive and moves several times the water. Extensions of at least four feet, or a buried drain, keep that water off the foundation.
Five inch gutters on a steep, large roof will overflow in heavy rain no matter how clean they are. Six inch seamless gutters with larger downspouts solve it. Seams that leak behind the gutter and pull away from the fascia are also a replacement sign. Seamless gutter cost by city is on our gutter pages, and we size the system to the roof, not to the old gutter.
A free estimate gets you exact numbers, real samples and an honest recommendation from a veteran owned local contractor.
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