Gutter Replacement and Repair for Des Moines, WA Houses

Last Updated: October 23, 2026

Gutters in Des Moines, from the marina to Woodmont

Gutters of Kent replaces, repairs and installs gutters and downspouts in Des Moines and the rest of South King County, and licensed and insured contractors carry out the work, residential and commercial. Des Moines has one of the oldest housing stocks near Kent. King County Assessor records put the median year built for its houses at 1966, 71.0% were built before 1980, and 71.7% are one-story. That profile shapes the work more than anything else: the more likely question is what to do with an aging system on a long, low roof line, not whether a new house was undersized.

Age is a clue, not a diagnosis. Plenty of 1960s houses have been reguttered since, and the right scope comes from what the walk-around finds at the seams, hangers and fascia.

Gutter services for Des Moines homes

Gutter replacement removes the old metal and plans the new layout from measured roof areas, which on an older house is the chance to fix a run that never had enough outlets. The replacement is usually seamless gutters, rolled out in a single length per eave so a long single-story run has no splice in the middle; miters, end caps and outlets remain the joints to watch. Where most of the system is sound, gutter repair handles leaking corners, failed seams and loose hangers, and the repair or replace guide sets out where that line falls.

An older house can hide trouble behind the gutter. When the board has softened, gutter and fascia repair replaces it before anything is hung, because hangers driven into rotten wood pull out again. New downspouts go where the roof area calls for them, not just where the old ones were. For owners weighing a material upgrade, copper gutters and the gutter material comparison cover the tradeoffs.

Stand-alone cleaning, roofing, moss removal and yard drainage past the downspout connection are outside the scope offered.

What shapes gutter work in Des Moines

Long single-story roof lines are the norm here, and they change the job in a specific way. Access is easier than on a two-story wall, but a wide house can carry a lot of linear footage, more corners and more seams if the old system was sectional. Each of those joints is a leak point as sealant ages, which is why an older sectional run tends to fail at several places along its length rather than one. The guide on how long gutters last explains how material, pitch and debris load affect that timeline. The assessor’s median lot is about 8,400 square feet, so the typical lot has some yard to work with when a downspout needs to discharge farther from the wall.

Older systems also raise the question of what happens underground. Where a downspout drops into a buried line, its age, route and outlet may be unknown. Tracing it comes before any decision to keep it, and the underground downspout drain guide covers what those lines can and cannot do. Des Moines’s own drainage manual has not been verified here, so any change to a buried connection is confirmed per address with the City of Des Moines.

The city sits on the east shore of Puget Sound, and Saltwater State Park occupies a steep ravine between Zenith and Woodmont. Where a lot sits on a bluff or a steep yard, discharging roof water at the top of a slope needs care, and the rules for that are confirmed with the city rather than assumed from Kent. Canopy averages 27.7% across Des Moines on USFS and MRLC data, and about 10.1% of the city falls in the wildland urban interface layer King County maps. Under mature trees, debris load still drives outlet size and whether gutter guards are worth adding.

Waterfront lots and material choices

Rainfall here tracks the airport’s: NOAA’s normals for the SeaTac station average 39.34 inches of rain a year, and the nearby Kent station counts about 96.7 days a year with at least a tenth of an inch. That is a lot of hours with water moving through a gutter, so joints, pitch and outlet size matter more than the profile on the brochure.

Shoreline exposure is a fair thing to ask about, but there is no local data here showing how salt air affects gutters in Des Moines, and no claim is made that it shortens their life. On a waterfront lot, the sensible step is to ask about material and fastener choice before the system is ordered. Aluminum is the standard choice for seamless runs. Copper is a higher-cost upgrade with its own soldered detailing. Whichever metal is used, fasteners, hangers and downspout straps should be compatible with it, because dissimilar metals in contact can react when they stay wet. Hanger spacing on an eave exposed to wind off the water is another fair question for the walk-around.

How a Des Moines job runs

After the first call with the address and photos, the walk-around measures each roof edge, checks the fascia and drip edge, and traces where every downspout lets go. On install day, runs are formed to length, hung on hidden hangers into sound wood and pitched toward the outlets. The water test runs water through the critical corners and outlets and confirms each downspout carries it away. Per-foot ranges and price drivers are laid out in the Kent cost guide. New gutters cut the roof water reaching the walls, but a dry crawlspace or basement also depends on grading and the foundation.

Neighborhoods and references in Des Moines

Landmarks: Des Moines Marina, Des Moines Beach Park, Saltwater State Park, Redondo boardwalk, Highline College. Routes: SR 99 (Pacific Highway South), SR 509, SR 516 (Kent-Des Moines Road), I-5. These place the area; they say nothing about any one house's gutters.

Guides for Des Moines homeowners

• Gutter repair vs replacement: which does your house need?
• What is the best gutter material?
• Underground downspout drains: when to bury the line
• How long do gutters last?