Kirkland · King County
Grading & Drainage in Kirkland, WA
Grading, French drains, retaining walls and RV and equipment pads across Kirkland, from Juanita to Bridle Trails. Built so water moves away from the house instead of toward it.
Why drainage matters on Kirkland properties
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 wet-yard, wet-crawlspace and failing-patio problems we see. Water that cannot soak in runs along the surface or perches on the hard layer until it finds 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 downhill onto the next lot, and flat ground leaves it nowhere to go. Getting the grade right is cheaper than fixing what water does to a foundation.
Lake Washington shoreline, Juanita Creek, Forbes Creek and the Totem Lake wetlands all carry critical-area or shoreline rules. Where drainage can legally discharge depends on these features, so we plan the outlet first and the trench second.
Common grading projects in Kirkland
Wet yards and crawlspaces
Regrading and French or curtain drains for Kirkland yards that stay soggy all winter because water perches on the hard till below.
Retaining walls on slopes
Block and rock retaining walls that hold back sloped Kirkland yards and driveways, built with drainage behind them so they last.
Grading away from the foundation
Reshaping the ground around Kirkland homes in Juanita and Finn Hill so it falls away from the house, the cheapest fix for water at the foundation.
Ditches and culverts
Cleaning and regrading drainage ditches, and setting culverts under driveways, on the low, wet ground around Kirkland.
Downspout tightlines
Connecting downspouts to solid pipe that carries roof water to an approved outlet instead of dumping it next to a Kirkland foundation.
What our grading work in Kirkland covers
- Retaining Walls
- French Drains & Footing Drains
- Rough & Finish Grading
- RV & Equipment Pads
- Yard Drainage Correction
- Erosion Control
Permits & Rules
Grading and retaining wall permits in Kirkland
Inside city limits, the City of Kirkland handles grading permits; outside them, the King County Department of Local Services. Small regrading and yard drains usually do not need one, but larger volumes of cut or fill, work in a critical area, or changes to how water leaves the property often do.
Retaining walls taller than about four feet, or walls holding back a driveway or slope, typically need engineering and a permit. We build to the approved plan and can tell you on the site walk when a wall is likely to need one.
Cost & Timing
What affects the cost of grading 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 grading in Kirkland
Grading 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
Grading and drainage 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 regrade yards, install French drains and curtain drains, build block and rock retaining walls, and set gravel RV and equipment pads 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. Older lots often have no real drainage at all, while newer ones sometimes have drains that were never connected. We find out which before we dig.
We also do grading nearby in Redmond, Bellevue, Seattle and Woodinville. See everything we do in Kirkland, read our full guide to grading, or browse all service areas.
Why DirtRaptor
Why Kirkland owners call us for grading
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 grading job runs
- 01
Site Assessment & Water Tracing
- 02
Design & Elevations
- 03
Excavation & Base Preparation
- 04
Build, Drainage & Backfill
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
Grading & Drainage in Kirkland: FAQs
Why does water collect around homes in Kirkland?
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Glacial till over most of the uplands, with outwash sands in places and soft deposits in the Totem Lake and Juanita lowlands. When water cannot soak in, it follows the surface toward the house. Regrading so the ground falls away from the foundation, plus a drain where needed, usually solves it.
Do retaining walls need a permit in Kirkland?
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Walls over about four feet, or walls supporting a driveway, building or slope, usually need engineering and a permit from the City of Kirkland (or the King County Department of Local Services outside city limits). Shorter landscape walls often do not. We confirm before building.
Where can drainage water go on my Kirkland property?
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It has to go somewhere approved: an existing 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. We plan the outlet before we trench.
How much does grading 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 grading in Kirkland?
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Grading 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 much does a retaining wall cost per foot?
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Face square foot is the usual unit, but cost per foot rises steeply with height because the work behind the wall grows faster than the wall itself. A two-foot garden wall and a five-foot structural wall are different trades. Site access and drainage requirements move it further.
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.
