SeaTac Rain Garden Installation Services

Let’s get one thing straight: a pile of mulch is not a rain garden! If you want to manage stormwater effectively and prevent flooding in your SeaTac property, you need a rain garden designed with the right sizing, soil mix, and drainage solutions. Our team specializes in crafting rain gardens that can handle SeaTac’s heavy winter rains while enhancing your landscape’s beauty.

What’s the Problem?

• Downspouts that direct water right at your foundation, leading to puddles and potential flooding.
• Side yards that transform into mini rivers during heavy rains, causing erosion.
• Mulch beds that wash away, leaving silt and debris on your sidewalks and driveways.
• Improperly designed rain gardens that hold water for days due to incorrect soil or lack of overflow features.

What We Build (Function First, Beauty Follows)

• Properly Sized — We calculate your rain garden’s surface area to be 5–10% of your roof/patio area, tailored to your soil’s infiltration rate.
• Bioretention Soil Mix — A sandy, well-draining blend topped with 2–3” of arbor mulch—never any fabric in the basins to promote healthy plant growth.
• Durable Inlets — Downspout connections to a rock splash pad or pipe boot with clean, angular drain rock to prevent erosion.
• Reliable Overflow Solutions — Armored spillways leading to lawns, dry wells, or dispersion trenches that meet SeaTac’s code requirements.
• Underdrain for Slow Soils — Perforated pipes in gravel with cleanouts and solid-pipe outlets if your soil doesn’t drain quickly.
• Native Planting — We select hardy PNW shrubs and perennials that thrive in our wet-to-dry climate shifts, enhancing local biodiversity.
• Easy-to-Maintain Edges — Clean transitions to lawns, paths, or flower beds—avoiding mysterious slopes that complicate maintenance.

If your soil infiltrates less than ½” per hour, we’ll plan for an underdrain or adjust our strategy accordingly.

Our Method (No Shortcuts Taken)

1. Site Assessment & Elevations — We analyze grades, map water paths, and ensure the basin is 10’+ from foundations.
2. Infiltration Test — A quick percolation check determines if you’re infiltrate-only or need to add an underdrain.
3. Layout & Utilities — We call 811 to avoid major roots and utility lines before excavation.
4. Excavate the Basin — We create a flat bottom and gentle side slopes, setting up a check dam/berm with a rock-lined spillway.
5. Soil Installation — We place the bioretention mix and top it off with mulch (no landscape fabric in the basin).
6. Piping — Downspout connections use solid pipe, while perforated pipes are only placed inside the basin/underdrain, with accessible cleanouts.
7. Planting — Plants are grouped for quick canopy establishment and effective weed suppression.
8. Proof Test — We hose test the inlet and overflow, documenting performance before finalizing.

Plant Palette That Thrives Here

For wetter basins: Slough sedge (Carex obnupta), Pacific ninebark (Physocarpus capitatus), Douglas spirea (Spiraea douglasii), red-twig dogwood (Cornus sericea), Oregon iris (Iris tenax), and rush (Juncus spp.).

For banks and side slopes: Evergreen huckleberry (Vaccinium ovatum), salal (Gaultheria shallon), sword fern (Polystichum munitum), kinnikinnick (Arctostaphylos uva-ursi), and vine maple (Acer circinatum).

For pollinator-friendly color: Douglas aster (Symphyotrichum subspicatum), native yarrow (Achillea millefolium), and camas (Camassia quamash).

To minimize watering, we size, plant densely, and mulch—it’s a winning formula for thriving gardens!

Sizing & Ordering (Let’s Get the Math Right)

• Rule of Thumb: Rain garden surface area should be 5–10% of the impervious area it serves.
• Quick Volume Check:
  • 1” of rain on 1,000 sq ft of roof equals ~623 gallons or ~83 cu ft (about 3.1 yd³).
  • A basin with a 6” ponding depth and 40% voids can handle that if sized correctly.
• Bioretention Mix: Plan for ~1–1.5 yd³ per 100 sq ft of basin, depending on depth.
• Rock Requirements: Typically need ¾”–1¼” clean rock for splash pads and underdrains; order 10–15% extra for settling.

Best Timing for SeaTac

• Fall to Early Spring: Ideal for installations to ensure roots establish with the rain. We avoid major storm weeks for excavation.
• Summer Work: Summer installations are fine, but expect to provide extra watering during the first season.

Our Annual Maintenance Plan

• Inlet & Overflow Checks: We clear leaves and debris before the first big fall storm.
• Mulch & Weed Control: We maintain a 2–3” depth of mulch and remove any invasive weeds before they go to seed.
• Plant Establishment: We ensure deep watering in the summer of Year 1, tapering off as roots develop.
• Sediment Scoops: We remove silt from splash pads to maintain high infiltration rates.

Our goal is to be your low-maintenance landscaping partner. Fewer problems between visits mean less work for you!

Service Cadences

• Quarterly — Fall storm prep, winter/spring checks, and summer tidy-ups.
• Bi-Monthly — Ideal for properties with heavy tree litter or steep contributing areas.

(New installs often start monthly for the first 60–90 days, then reduce frequency.)

What Annual Maintenance Includes

• Leaf and seed cleanup at inlets and spillways.
• Mulch top-ups and edge touch-ups for a clean and tidy appearance.
• Plant health assessments and recommendations for fill-ins.
• Underdrain and cleanout inspections, with quick flushes as needed.
• A photo log to show you the performance and blooming progress.

Why Annual Maintenance Matters

• Keeps Water Soaking In: Open inlets and fresh mulch ensure high infiltration rates.
• Protects Your Home: Less splash and backflow mean fewer issues at your foundation.
• Enhances Curb Appeal: A lush, dense cover leads to fewer weeds and bare patches.
• Saves You Money: Small maintenance tasks are much cheaper than major repairs or replacements.

How It Works

1. Free Estimate: We provide an estimate via photos/videos or a quick walkthrough, with clear pricing—no surprises!
2. Design Plan: We’ll work out the sizing, soil specs, and plant selection based on your site and local regulations.
3. Build Day(s): We handle everything from excavation, piping, soil placement, rock installation, planting, to final tests and clean finishes.
4. Follow-Up: We provide simple care tips and a tailored maintenance schedule that fits your needs.

Why SeaTac Chooses Neat & Tidy

• We’re a local team that understands clay soils, winter rains, and the unique challenges of SeaTac properties.
• We are licensed and insured; we call 811 and adhere strictly to local discharge regulations.
• Our pricing is transparent—materials, labor, hauling, and disposal are all included.
• We pride ourselves on being punctual, respectful, and keeping our work areas clean.
• Our green-first approach emphasizes native plants, infiltration-focused designs, and minimal waste.

Ready to transform runoff into a stunning landscape feature?

Call or text Neat & Tidy today! We’ll craft a rain garden that’s perfectly sized, drains effectively, and looks beautiful all year long—so you can enjoy your outdoor space without the hassle. Let us keep it tidy—while you sit back and relax!