Denver County, Colorado
Gutter cleaning, repair and new gutters in Denver, CO
Rain in Denver adds up to about 15 inches in a normal year, with about 2 days that bring an inch or more. The wettest season is summer (June to August), with about 5.6 inches; the driest is winter (December to February), with 1.5. That is about 9,500 gallons a year off each 1,000 square feet of roof, every drop of it through a gutter and a downspout.
Call (866) 228-6229 free call to a gutter contractor serving DenverDenver: rain and roofs
NOAA station USW00023062, 1 miBars to one scale; the longest is summer (June to August).
Counting days with an inch of rain or more, Denver sits near the middle of the 182 places in Colorado on this site (2.2 a year). By the age of its homes it sits 21st oldest by median year built of the 181 places in Colorado on this site (half built by 1974). By its first fall frost it sits near the middle of the 182 places in Colorado on this site (October 8).
When to clean gutters in Denver
The first fall frost comes around October 8 in a typical year here, and the last spring frost around May 4 (median dates, NOAA normals). Booking the fall cleaning after the first frost, once the trees over the roof are bare, catches the season’s drop in one visit; the spring cleaning comes after the pollen and catkins are down.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Denver rain
What overwhelms a gutter is a burst, not a season. In Denver the five-minute rain expected about once in ten years falls at 5.35 inches an hour (NOAA Atlas 14 Volume 8). At that rate one 2-by-3-inch downspout drains about 1,350 square feet of roof and one 3-by-4-inch downspout about 2,690, 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.
Denver averages about 49 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 Denver
Half the homes in Denver were built by 1974, 57% before 1980 (ACS 2020–2024). In a neighborhood that age, many houses are on their second set of gutters or due for one, and the fascia board behind them is worth checking at the same visit. 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.
49% of households own their home, and 41% of homes are detached houses, 9% townhouses. In a townhouse or HOA community, check who owns the gutters and what colors are allowed before booking.
Hiring in Colorado
Ask any contractor working in Denver what Colorado requires of them for gutter work, and to show proof of insurance. Hiring a gutter contractor
Gutter work in Denver
With half the homes built by 1974, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: