A residential sprinkler system in the Portland metro area typically costs $3,500 to $8,000 for a standard installation covering a front and backyard with 5 to 8 zones. Smaller properties (front yard only, or a single backyard zone) start around $2,000 to $3,500. Larger or more complex systems (10+ zones, drip irrigation on beds, smart controller, extensive trenching) can run $8,000 to $15,000+. Our sprinkler installation page covers the full process and what’s included.
Here’s what determines where your system falls in that range.
Sprinkler System Cost by Property Size
Small system (2,000 to 4,000 sq ft coverage, 3 to 5 zones): $2,000 to $4,500. A front yard and small backyard, or a single lawn area with a couple of bed zones. Typical for smaller Portland lots in neighborhoods like Sellwood, Hawthorne, and inner Southeast. Installation takes 1 to 2 days.
Medium system (4,000 to 8,000 sq ft, 5 to 8 zones): $4,000 to $8,000. Full front and backyard coverage with separate zones for lawn, beds, and parking strip. This is the most common residential system size in Portland. Installation takes 2 to 3 days.
Large system (8,000+ sq ft, 8 to 12+ zones): $7,000 to $15,000+. Full property coverage on larger lots, multiple drip zones for ornamental beds, dedicated zones for slopes or specialty plantings. Common on properties in Lake Oswego, West Linn, Happy Valley, and Damascus where lot sizes are larger. Installation takes 3 to 5 days.
What Drives Sprinkler System Cost
Zone Count
Each zone requires a valve, valve box, dedicated pipe run, and wiring back to the controller. More zones mean more materials and more trenching. A 5-zone system might require 200 feet of trench. A 10-zone system might require 400+ feet. Zone count is the strongest predictor of total cost because it scales nearly every material and labor component.
The right number of zones depends on your yard’s layout, not your budget. Combining areas with different watering needs onto one zone (sunny lawn + shaded beds, for example) saves money at installation but wastes water and harms plants for the life of the system. We design based on what the yard needs, then discuss options if the budget requires tradeoffs.
Head Types
Rotary heads cost $8 to $20 per head installed. Pop-up spray heads cost $5 to $12 per head. Drip zones cost $1.50 to $3 per linear foot of drip line plus emitters. A system with all rotary heads on lawn zones is slightly less expensive per zone than a system mixing rotary, spray, and drip because drip zones require additional components (filters, pressure regulators, specialized fittings). For details on which head type fits each area, see our post on types of sprinkler systems.
Controller
Basic timer ($50 to $150): Fixed schedule, manual programming, no weather integration. Gets the job done but runs on the same schedule regardless of whether it’s raining or sunny. Not recommended for Portland because you’ll water through every rainstorm from October through May unless you manually turn it off.
Smart controller ($150 to $400): WiFi-connected, weather-based scheduling, rain delay, seasonal adjustment, smartphone app control. Automatically reduces or skips watering during Portland’s rainy season. Over a full year, a smart controller typically saves 30 to 50% on water use compared to a basic timer. The cost premium pays for itself in 1 to 2 years of water savings. We recommend smart controllers for every Portland installation.
Backflow Prevention
Portland and most surrounding cities require a backflow prevention device on any irrigation connection to the potable water supply. A reduced pressure zone (RPZ) assembly is the most common type for residential systems. The device costs $300 to $600 installed, plus an annual test ($75 to $125) required by the water provider. This isn’t optional. It’s code.
Trenching Conditions
Portland’s clay soil is harder to trench than sandy or loamy soil. It requires more equipment effort, and wet clay (common during spring and fall installations) is heavier to move and slower to work with. Rocky soil in some Portland-area neighborhoods adds trenching time and wear on equipment. The condition of the soil at the time of installation affects labor cost by 10 to 20%.
Trenching under sidewalks, driveways, or patios requires boring (pushing pipe under the obstruction without cutting the surface). Each bore adds $100 to $300 depending on the width and soil conditions. Most Portland systems need at least one bore (typically under the front walkway to connect the front yard zones to the backyard controller).
Landscape Restoration
Trenching leaves a narrow strip of disturbed soil across the lawn. On established lawns, we backfill the trench and the grass recovers within a few weeks during the growing season. On properties with new sod or freshly seeded areas, trenching requires more careful restoration. If you’re installing both a sprinkler system and a new sod lawn, doing both at the same time saves money because the sod covers the trench lines and the soil prep overlaps.
What’s Included in Our Sprinkler Estimates
Our written estimates include line-item pricing for:
Design: Zone plan, head layout, pipe sizing, and controller selection based on the site assessment.
Materials: Pipe, fittings, heads, valves, valve boxes, wire, controller, backflow device, drip components (if applicable).
Trenching and installation: Excavation, pipe laying, head installation, valve assembly, wiring, backfill.
Boring: Under sidewalks, driveways, or other hardscape as needed.
Controller programming: Zone scheduling, cycle-and-soak setup, smart controller weather integration, rain sensor calibration.
System startup and testing: Full system pressurization, head adjustment, coverage verification, leak check.
Backflow testing: Initial test and certification (annual renewals are separate).
Ways to Manage Cost
Phase the installation. If the full system exceeds your budget, install the front yard and primary backyard zones now, and add drip zones and secondary areas later. We design the full system upfront so the phased additions connect seamlessly.
Combine with other projects. If you’re also doing sod, drainage, or landscaping work, combining projects saves on mobilization, trenching, and soil work that overlaps between projects.
Start with the areas that need it most. A sunny front lawn that browns every July is a higher priority than a shaded backyard that stays green into August. Irrigate the high-need areas first.
How to Get an Accurate Estimate
Sprinkler system cost depends on yard layout, zone count, soil conditions, access, and head types. The only way to get an accurate number is a site visit. We provide free on-site sprinkler consultations throughout the Portland metro area. We’ll measure your property, evaluate water pressure, map sun exposure, and design a system with detailed pricing.
Call (503) 847-9110 or request your free estimate online.
Pricing ranges last verified 2026. All estimates are based on typical Portland metro residential projects. Your actual cost depends on site conditions assessed during the free consultation.
Learn More About Sprinkler Systems
Commercial Sprinkler System Installation in Portland — What makes commercial irrigation different from residential.
How Portland’s Climate Affects Sprinkler System Design — Why systems here need to handle both drought and deluge.
Types of Sprinkler Systems for Portland Properties — Rotary heads, pop-ups, drip, and micro-spray compared.