Mastering the Puget Sound Elements
Precision irrigation engineering and crafted hardscapes — built to thrive in the rain, the mist, and the long grey season.
"Water bill dropped and the lawn has never looked better."
"Finished a week ahead of schedule. Clean job site every day."
"Called at 9pm in a freeze — they were out the next morning."
From Rain to Root
We're the premier outdoor living and water management specialist serving the entire Puget Sound region — harmonizing rugged stone, life-giving water, and the engineering required to balance them.
Irrigation System Design
Custom sprinkler zone layout and high-efficiency nozzle systems engineered for Pacific Northwest rainfall patterns and soil types.
Hardscape & Stonework
Flagstone patios, paver walkways, and retaining walls — laid with the precision of a surveyor and the eye of a stonemason.
Drip Irrigation
Low-flow drip systems for garden beds and native plantings — conserving water while keeping the mossy understory lush.
Repairs & Winterization
24-hour emergency service, system audits, blowouts, and seasonal tune-ups to keep your system resilient year-round.
Trusted by Homeowners Across the Puget Sound
Pacific Northwest Irrigation & Hardscapes is the premier outdoor living and water management specialist serving the entire Puget Sound region. We specialize in professional irrigation system design, sprinkler zone installation, and drip irrigation — paired with flagstone patios, paver walkways, and retaining walls built to outlast the wet season.
4.6★ on Google
28 verified reviews from homeowners across the Sound
Licensed & Insured
Professional-grade workmanship, guaranteed
Open 24 Hours
Emergency repairs whenever you need us
PNW Specialists
Systems engineered for rain, clay soil, and moss
"They redesigned our entire sprinkler system around our clay soil and shade. The lawn has never looked this good, and the water bill dropped."
"Flagstone patio came out exactly like the mockup. Clean job site every day, and they finished a week ahead of schedule."
"Called at 9pm when a sprinkler line burst during a freeze. They were out the next morning. Can't ask for more than that."
Irrigation & Hardscape Services Near You
From hillside retaining walls in Renton to drip gardens in Maple Valley, our crews cover the South Puget Sound corridor — with 24-hour emergency response across every community below.
Kent
Our home base — irrigation installs, sprinkler zone upgrades, and stone patios across the valley and hills.
- East Hill
- Kent Valley
- Star Lake
- Panther Lake
- Downtown Kent
Auburn
Drip systems, paver walkways, and full outdoor living builds for Auburn's growing neighborhoods.
- Lea Hill
- Lakeland Hills
- Auburn West
- Game Farm Park area
Renton
Retaining walls and hillside drainage engineering for the slopes overlooking Lake Washington.
- The Highlands
- Kennydale
- Maplewood
- Fairwood
- Talley
Seattle
Compact-lot irrigation retrofits and high-efficiency nozzle upgrades for city homeowners.
- West Seattle
- Beacon Hill
- Rainier Valley
- Columbia City
- Ballard
Federal Way
Large-lot sprinkler systems, drip gardens, and hardscapes serving the Federal Way corridor.
- Dash Point
- Twin Lakes
- Redondo
- Mirror Lake
Maple Valley & Covington
Forest-edge properties: cedar-clearing hardscapes, rotors, and native drip beds.
- Maple Valley Heights
- Covington Crossings
- Hobart
- Lake Wilderness
Tukwila & SeaTac
Fast repairs and winterization for homeowners between the I-5 and I-405 corridors.
- Riverton Heights
- Foster
- SeaTac
- Boulevard Park
Des Moines & Burien
Waterfront-adjacent irrigation and bluestone patio builds for the Waterland communities.
- Des Moines Waterfront
- Marina District
- Sunnydale
- Normandy Park
- Lake Burien
Not on the list?
If you're in the Puget Sound region, we likely serve you — call and we'll confirm.
Seasonal Care for Sprinklers & Hardscapes
Our climate runs on a rhythm — wet winters, dry Julys. Follow this year-round maintenance rhythm and your system and stonework will outlast the neighbors'.
Spring
March – May- Have us run a full sprinkler start-up: slow-fill the mainline so a winter-cracked pipe doesn't burst on the first cycle.
- Flush drip lines and clean filters — PNW winter silt clogs emitters fast.
- Reset controllers for spring rains; overwatering in April is the #1 wasted-water culprit.
- Pressure-wash patios and pavers now, before spring moss sets in.
Summer
June – August- Water between 4–7 a.m. to beat evaporation and avoid lawn fungus.
- Shift to deeper, less-frequent cycles — roots follow the water.
- Check rotor alignment monthly; one tilted head can dry out an entire zone.
- Re-sand paver joints after heavy use — it keeps polymeric sand and weeds in check.
Fall
September – November- Clear leaves off hardscape weekly — wet foliage stains concrete and stone.
- Aerate and pair it with a late-season deep soak before the rains return.
- Cut back irrigation run times as temperatures drop, then shut zones off zone by zone.
- Seal pavers and natural stone in early fall so the sealant cures before the wet season.
Winter
December – February- Schedule a compressed-air blow-out before the first hard freeze — trapped water splits copper, PVC, and backflow preventers.
- Insulate exposed backflow assemblies and valve boxes.
- Skip de-icing salt on concrete and pavers; it pits the surface. Use a calcium-based, concrete-safe product instead.
- Keep walkways swept and drained — standing water turns to ice sheets on flagstone.
Rough Estimate in 60 Seconds
Based on current Washington labor and material costs. A real number, not a sales call — until you're ready.
What are you building?
Choose your project scope.
Built for the Rain. Proven Across the Sound.
Kent · Cedar Patio & Zones
Auburn · Forest-Edge Living Space
Renton · Stone Retaining Build
Seattle · Fern Garden Retrofit
Maple Valley · Native Drip Install
Frequently Asked Questions
Straight answers on pricing, coverage, and caring for your system in Western Washington's climate.
Open 24 Hours. Reach Us Now.
Serving Kent and the entire Puget Sound region. Send a photo of your project or problem and we'll respond fast.
Speed Form
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