Washtenaw County, Michigan
Gutter cleaning, repair and new gutters in Ann Arbor, MI
Rain in Ann Arbor adds up to about 38 inches in a normal year, with about 6 days that bring an inch or more. The wettest season is summer (June to August), with about 11.4 inches; the driest is winter (December to February), with 7.9. Off a 1,000-square-foot roof, that comes to about 23,500 gallons a year for the gutters to carry.
Call (866) 228-6229 free call to a gutter contractor serving Ann ArborAnn Arbor: rain and roofs
NOAA station USC00200228, 3 miBars to one scale; the longest is summer (June to August).
By heavy-rain days, Ann Arbor falls near the middle of the 405 places in Michigan on this site (6.3 a year). By house age it falls near the middle of the 406 places in Michigan on this site (half built by 1971). By first frost it falls 67th earliest for the first fall frost of the 406 places in Michigan on this site (October 10).
When to clean gutters in Ann Arbor
The first fall frost comes around October 10 in a typical year here, and the last spring frost around May 5 (median dates, NOAA normals). A fall cleaning set for the weeks after that frost, when the branches over the house are bare, gets the year’s leaves in one trip; a spring visit follows once the pollen and catkins have come down.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Ann Arbor rain
The short, hard downpour is what a gutter is sized for. In Ann Arbor the five-minute rain expected about once in ten years falls at 6.65 inches an hour (NOAA Atlas 14 Volume 8). At that rate one 2-by-3-inch downspout drains about 1,080 square feet of roof and one 3-by-4-inch downspout about 2,170, by the rule in the Copper Development Association’s design handbook. Try your own roof in the gutter and downspout calculator, which starts from this figure.
Ann Arbor averages about 59 inches of snow a year (NOAA normals). Snow on a roof brings ice dams: heat escaping from the house melts the snow, and the water refreezes at the cold eave, in the gutter and over it. University of Minnesota Extension puts the cause in the attic, not in the gutter, so a gutter that fills with ice is a symptom; hangers spaced to carry ice and a sound fascia are what the gutter itself needs.
The houses in Ann Arbor
Half the homes in Ann Arbor were built by 1971, 64% before 1980 (ACS 2020–2024). Houses that age have often had their gutters replaced once already; if not, the original runs and the boards behind them deserve a close look. On a house built before 1978, replacing more than 20 square feet of painted fascia or trim falls under the EPA’s lead-safe rule, so ask whether the crew is certified.
46% of households own their home, and 42% of homes are detached houses, 11% townhouses. If an association maintains the exterior, the gutters may be its job rather than yours; check before calling.
Hiring in Michigan
Licensing for gutter work differs from state to state; ask a contractor in Ann Arbor which license or registration they hold in Michigan, and for proof of liability insurance. Hiring a gutter contractor
Gutter work in Ann Arbor
With half the homes built by 1971, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: