LaSalle County, Illinois
Gutter cleaning, repair and new gutters in Ottawa, IL
Ottawa gets about 39 inches of rain in a normal year, and on about 10 days a year an inch or more falls in a single day. The wettest season is summer (June to August), with about 12.9 inches; the driest is winter (December to February), with 6.0. Every 1,000 square feet of roof sheds about 24,200 gallons a year, and all of it goes through the gutters.
Call (866) 228-6229 free call to a gutter contractor serving OttawaOttawa: rain and roofs
NOAA station USC00115372, 4 miBars to one scale; the longest is summer (June to August).
For days with an inch of rain or more, Ottawa ranks near the middle of the 695 places in Illinois on this site (9.6 a year). By house age it falls 154th oldest by median year built of the 695 places in Illinois on this site (half built by 1958). The first frost here ranks 118th earliest for the first fall frost of the 695 places in Illinois on this site (October 17).
When to clean gutters in Ottawa
The first fall frost comes around October 17 in a typical year here, and the last spring frost around April 27 (median dates, NOAA normals). Plan the fall visit for after the frost, when the trees over the roof have finished dropping, and the spring visit for after the pollen and catkins.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Ottawa rain
Gutters are sized for the worst few minutes of a storm, not for the year. In Ottawa the five-minute rain expected about once in ten years falls at 7.20 inches an hour (NOAA Atlas 14 Volume 2). At that rate one 2-by-3-inch downspout drains about 1,000 square feet of roof and one 3-by-4-inch downspout about 2,000, 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.
The houses in Ottawa
Half the homes in Ottawa were built by 1958, 72% before 1980 (ACS 2020–2024). At that age a gutter has seen decades of leaves and storms, and the fascia it hangs from has too. 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.
69% of households own their home, and 72% of homes are detached houses, 8% townhouses. Where an HOA governs the exterior, its rules on gutter color and style apply before any order is placed.
Hiring in Illinois
Before hiring in Ottawa, ask which Illinois license or registration the contractor holds and for a certificate of liability insurance. Hiring a gutter contractor
Gutter work in Ottawa
With half the homes built by 1958, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: