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Bergen County, New Jersey

Gutter cleaning, repair and new gutters in Demarest, NJ

A normal year in Demarest brings about 47 inches of rain; on roughly 12 of its days, an inch or more comes down at once. The wettest season is summer (June to August), with about 13.1 inches; the driest is winter (December to February), with 10.4. Every 1,000 square feet of roof sheds about 29,200 gallons a year, and all of it goes through the gutters.

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Demarest: rain and roofs

NOAA station USC00286146, 3 mi
47.1 in
Rain in a normal year, Demarest
NOAA normal, NEW MILFORD
11.8
Days with an inch or more
a year
29,200 gal
Water off 1,000 sq ft of roof in Demarest
0.62 gal per sq ft per inch
6.61 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 2
Oct 26
First fall frost
median date
1964
Median year homes were built
ACS 2020–2024
63%
Homes built before 1980
ACS 2020–2024
Winter10.4 in
Spring11.5 in
Summer13.1 in
Fall12.1 in

Bars to one scale; the longest is summer (June to August).

For days with an inch of rain or more, Demarest ranks among the fewest heavy-rain days of the 547 places in New Jersey on this site (11.8 a year). By the age of its homes it sits near the middle of the 540 places in New Jersey on this site (half built by 1964). The first frost here ranks near the middle of the 547 places in New Jersey on this site (October 26).

When to clean gutters in Demarest

The first fall frost comes around October 26 in a typical year here, and the last spring frost around April 20 (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 Demarest rain

Gutters are sized for the worst few minutes of a storm, not for the year. In Demarest the five-minute rain expected about once in ten years falls at 6.61 inches an hour (NOAA Atlas 14 Volume 2). At that rate one 2-by-3-inch downspout drains about 1,090 square feet of roof and one 3-by-4-inch downspout about 2,180, 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.

With about 33 inches of snow in a normal year here (NOAA normals), gutters carry ice as well as water. Ice dams start with heat from the house melting roof snow that refreezes at the edge (University of Minnesota Extension); the fix for the dam is in the attic, and the gutter’s part is to be hung strongly enough to take the weight.

The houses in Demarest

Half the homes in Demarest were built by 1964, 63% 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.

90% of households own their home, and 97% of homes are detached houses. Where an HOA governs the exterior, its rules on gutter color and style apply before any order is placed.

Hiring in New Jersey

Before hiring in Demarest, ask which New Jersey license or registration the contractor holds and for a certificate of liability insurance. Hiring a gutter contractor

Gutter work in Demarest

With half the homes built by 1964, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it:

Nearby

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