Shoreline · King County
French Drain Installation in Shoreline, WA
French drains, curtain drains and downspout tightlines in Shoreline that collect water before it reaches the house and carry it to an approved outlet. Serving Richmond Beach, Innis Arden, Richmond Highlands and Echo Lake.
Why Shoreline yards hold water
Glacial till over the uplands, with sand and silt layers and landslide hazard areas on the western bluffs. That is the root of most soggy lawns, wet crawlspaces and ponding patios we see in Shoreline: water that cannot soak in perches on the hard layer and runs to the lowest point.
Upland plateau falling steeply west to the Sound at Richmond Beach and Innis Arden, cut by ravines like Boeing Creek. Slopes push water onto the next lot down, and flat ground leaves it nowhere to go, so the drain route and the grade around the house matter as much as the pipe.
Puget Sound shoreline, Boeing Creek, Thornton Creek headwaters, McAleer Creek and Echo Lake carry critical-area buffers. Where a drain can legally discharge depends on these features, so we plan the outlet first and the trench second.
Common french drains projects in Shoreline
Soggy lawns
French drains for Shoreline lawns that stay wet all winter because water perches on the hard till below.
Wet crawlspaces
Curtain and footing-side drains that keep water away from foundations and crawlspaces in Richmond Beach and Innis Arden.
Downspout tightlines
Roof water carried in solid pipe away from Shoreline foundations to an approved outlet.
Hillside water control
Curtain drains across Shoreline slopes that stop water before it sheets over a bank or onto the next lot.
Flat-ground drainage
Drains, catch basins and ditch work for flat, low Shoreline properties where water has nowhere to go.
What our french drains work in Shoreline covers
- French Drains
- Curtain Drains
- Downspout Tightlines
- Catch Basins
- Yard Regrading
- Material Delivery
Permits & Rules
Drainage rules in Shoreline
Small yard drains usually do not need a permit, but connecting to a storm system, working near a stream or wetland, or changing how water leaves the property can need approval from the City of Shoreline. Outside city limits, the King County Department of Local Services handles it.
Water can go to an existing storm system, a dispersion area or an infiltration trench where the soil allows. It cannot be pointed at a neighbor or dumped over a slope.
Cost & Timing
What affects the cost of french drains in Shoreline
We do not publish flat prices because no two Shoreline sites are the same. These are the things that move the number most here.
Slope and access
Steep Shoreline lots take smaller machines, more careful staging and sometimes engineering, which adds time compared with flat, open ground.
Soft ground
Where Shoreline soils are soft or wet, over-excavation, fabric and imported rock are often part of the job, and we price that in up front.
Buffers and permits
Work near Shoreline's rivers, creeks, lakes or shoreline can need permits and limits on where machines go. That affects scope and schedule more than price.
Haul-off and disposal
How much material leaves the site, and what it is, drives cost. Our own trucks keep that predictable on Shoreline jobs.
When to schedule french drains in Shoreline
French Drains in Shoreline goes best in the drier months, when soil compacts properly and trenches stay open. Wet-season work is doable with erosion control and the right material, and we plan for it in the quote.
Shoreline's till soils hold water through the winter, which is when drainage problems show up. That is a good time to see where water goes, and the dry season is the time to fix it.
Where We Work
Drainage work across Shoreline
Shoreline sits just north of Seattle, with Puget Sound bluffs on the west side and established neighborhoods across the middle. The new light rail stations are bringing a wave of redevelopment and townhome infill.
We install French and curtain drains, catch basins and downspout tightlines across Richmond Beach, Innis Arden, Richmond Highlands, Echo Lake, North City, Ridgecrest, Ballinger and Parkwood. Mostly 1950s and 60s ramblers, larger view homes on the west side, and new townhomes near the light rail stations and Aurora.
Drain rock, fabric and pipe are delivered on our own trucks, and the excavated soil is reused for regrading or hauled away.
We also do french drains nearby in Mountlake Terrace, Lake Forest Park, Brier and Edmonds. See everything we do in Shoreline, read our full guide to french drains, or browse all service areas.
Why DirtRaptor
Why Shoreline owners call us for french drains
Owner on the machine
On Shoreline jobs you talk to the person who walks the site, writes the quote and runs the equipment.
Trees and dirt, one crew
If trees are in the way of your Shoreline project, we take them down ourselves instead of waiting on a separate tree service.
Our own trucks
Haul-off and deliveries run on our schedule along I-5 and SR 99 (Aurora Ave N), not a subcontractor's.
Built for slopes
We plan machine placement, drainage and erosion control for Shoreline's sloped ground before we start.
How a french drains job runs
- 01
Find the Water
- 02
Plan the Outlet
- 03
Trench, Fabric, Rock & Pipe
- 04
Backfill & Grade
Real Jobs
Recent DirtRaptor work near Shoreline
Demolition · Edmonds, WA
Driveway Removal & Concrete Prep
Tearing out an old blacktop driveway and prepping the ground for a new concrete pour — broken material hauled off, base left clean and ready.
Demolition · Everett, WA
Condemned 100-Year-Old Shed Teardown
A 100-year-old shed, condemned and unsafe, brought down and hauled off — the site left graded flat and clean.
Questions
French Drain Installation in Shoreline: FAQs
Will a French drain fix my wet yard in Shoreline?
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Often, especially combined with regrading. Glacial till over the uplands, with sand and silt layers and landslide hazard areas on the western bluffs. A drain plus better grading handles most of what that causes.
Where can drainage water go in Shoreline?
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To an approved outlet: a storm system, a dispersion area or an infiltration trench where the soil allows. Puget Sound shoreline, Boeing Creek, Thornton Creek headwaters, McAleer Creek and Echo Lake carry critical-area buffers.
Do I need a permit for a French drain in Shoreline?
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Usually not for a small yard drain. Storm connections or work near streams, wetlands or slopes can need approval from the City of Shoreline. We confirm before digging.
How much does french drains cost in Shoreline?
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It depends on the site, so we quote after a free site walk rather than guessing on the phone. The biggest drivers in Shoreline are usually slope and access, soft ground, buffers and permits. You get a written number with inclusions and exclusions spelled out.
When is the best time to schedule french drains in Shoreline?
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French Drains in Shoreline goes best in the drier months, when soil compacts properly and trenches stay open. Wet-season work is doable with erosion control and the right material, and we plan for it in the quote.
Can you remove the old foundation and trees for a Shoreline townhome project?
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Yes. We demolish the existing house, remove the foundation, take out the approved trees, protect the ones staying and excavate for the new building, all on one schedule.
Do you work on Richmond Beach and Innis Arden bluff properties?
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Yes, with care. Bluff properties need controlled drainage, light equipment near the edge and often a geotechnical review.
Where does the water from a French drain go?
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To an approved outlet: an existing storm system, a dispersion area, or an infiltration trench where the soil allows. It cannot be pointed at a neighbor or over a slope.
Ready for a real number in Shoreline?
Send the address and a few photos. We walk the site for free and come back with a written quote.
