Grand County, Colorado
Gutter cleaning, repair and new gutters in Granby, CO
Granby gets about 14 inches of rain in a normal year, and a day with an inch or more comes once every 3 years or so. The wettest season is summer (June to August), with about 4.5 inches. Off a 1,000-square-foot roof that is about 8,500 gallons a year, most of it in steady rain rather than downpours.
Call (866) 228-6229 free call to a gutter contractor serving GranbyGranby: rain and roofs
NOAA station USC00053500, 9 miBars to one scale; the longest is summer (June to August).
For days with an inch of rain or more, Granby ranks among the fewest heavy-rain days of the 182 places in Colorado on this site (0.4 a year). By the age of its homes it sits near the middle of the 181 places in Colorado on this site (half built by 1995). By its first fall frost it sits 4th earliest for the first fall frost of the 182 places in Colorado on this site (September 7).
When to clean gutters in Granby
The first fall frost comes around September 7 in a typical year here, and the last spring frost around June 13 (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 Granby rain
What overwhelms a gutter is a burst, not a season. In Granby the five-minute rain expected about once in ten years falls at 3.43 inches an hour (NOAA Atlas 14 Volume 8). At that rate one 2-by-3-inch downspout drains about 2,100 square feet of roof and one 3-by-4-inch downspout about 4,200, 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.
Granby averages about 143 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.
Granby is dry by national standards, about 14 inches in a normal year, but much of the rain that does come can arrive in short, hard storms: the five-minute downpour expected once in ten years still runs at 3.43 inches an hour. Where gutters are used here, the job is moving that burst away from the foundation, and keeping a dry season’s dust and debris from blocking the first storm.
The houses in Granby
Half the homes in Granby were built by 1995, 21% 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.
74% of households own their home, and 42% of homes are detached houses, 10% 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 Granby what Colorado requires of them for gutter work, and to show proof of insurance. Hiring a gutter contractor
Gutter work in Granby
In a neighborhood with half its homes built by 1995, the usual calls are cleaning, guards and small repairs. The line takes all of it: