Kirkland · King County
French Drain Installation in Kirkland, WA
French drains, curtain drains and downspout tightlines in Kirkland that collect water before it reaches the house and carry it to an approved outlet. Serving Juanita, Finn Hill, Totem Lake and Kingsgate.
Why Kirkland yards hold water
Glacial till over most of the uplands, with outwash sands in places and soft deposits in the Totem Lake and Juanita lowlands. That is the root of most soggy lawns, wet crawlspaces and ponding patios we see in Kirkland: water that cannot soak in perches on the hard layer and runs to the lowest point.
Hills rising steeply from the lakeshore, with Finn Hill and Rose Hill on the uplands and ravines and wetlands between them. 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.
Lake Washington shoreline, Juanita Creek, Forbes Creek and the Totem Lake wetlands all carry critical-area or shoreline rules. 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 Kirkland
Soggy lawns
French drains for Kirkland 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 Juanita and Finn Hill.
Downspout tightlines
Roof water carried in solid pipe away from Kirkland foundations to an approved outlet.
Hillside water control
Curtain drains across Kirkland 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 Kirkland properties where water has nowhere to go.
What our french drains work in Kirkland covers
- French Drains
- Curtain Drains
- Downspout Tightlines
- Catch Basins
- Yard Regrading
- Material Delivery
Permits & Rules
Drainage rules in Kirkland
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 Kirkland. 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 Kirkland
We do not publish flat prices because no two Kirkland sites are the same. These are the things that move the number most here.
Slope and access
Steep Kirkland lots take smaller machines, more careful staging and sometimes engineering, which adds time compared with flat, open ground.
Tight lots
Narrow side yards and alley access in Kirkland mean compact equipment and shorter truck loads. We plan it so it costs less than it could.
Soft ground
Where Kirkland 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 Kirkland'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 Kirkland jobs.
When to schedule french drains in Kirkland
French Drains in Kirkland 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.
Kirkland'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 Kirkland
Kirkland stretches along the east shore of Lake Washington from Houghton up through Juanita and Finn Hill to Kingsgate. It has some of the strictest tree rules on the Eastside and a lot of high-value homes on tight or sloped lots.
We install French and curtain drains, catch basins and downspout tightlines across Juanita, Finn Hill, Totem Lake, Kingsgate, Rose Hill, Houghton, Market and Bridle Trails. From mid-century homes on Finn Hill to high-end new construction in Houghton and Market. Teardown and rebuild projects are common.
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 Redmond, Bellevue, Seattle and Woodinville. See everything we do in Kirkland, read our full guide to french drains, or browse all service areas.
Why DirtRaptor
Why Kirkland owners call us for french drains
Owner on the machine
On Kirkland 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 Kirkland 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-405 and NE 85th St, not a subcontractor's.
Built for slopes
We plan machine placement, drainage and erosion control for Kirkland'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 Kirkland
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 Kirkland: FAQs
Will a French drain fix my wet yard in Kirkland?
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Often, especially combined with regrading. Glacial till over most of the uplands, with outwash sands in places and soft deposits in the Totem Lake and Juanita lowlands. A drain plus better grading handles most of what that causes.
Where can drainage water go in Kirkland?
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To an approved outlet: a storm system, a dispersion area or an infiltration trench where the soil allows. Lake Washington shoreline, Juanita Creek, Forbes Creek and the Totem Lake wetlands all carry critical-area or shoreline rules.
Do I need a permit for a French drain in Kirkland?
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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 Kirkland. We confirm before digging.
How much does french drains cost in Kirkland?
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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 Kirkland are usually slope and access, tight lots, soft ground. You get a written number with inclusions and exclusions spelled out.
When is the best time to schedule french drains in Kirkland?
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French Drains in Kirkland 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.
Do I need a permit to remove a tree in Kirkland?
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Usually something is required. Kirkland regulates removal of significant trees on private lots, with different rules for hazard trees, development and critical areas. We assess the tree and tell you what the city will need before any cutting.
Can you prep a Kirkland teardown lot for a new house?
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Yes. We demolish the old structure, remove the foundation and slab, take out the trees that are approved for removal, protect the ones being kept, and excavate for the new foundation, all with one crew.
How long does a French drain last?
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A properly built drain with filter fabric and clean drain rock can last for decades. Drains without fabric clog with silt much sooner, which is why we never skip it.
Ready for a real number in Kirkland?
Send the address and a few photos. We walk the site for free and come back with a written quote.
