Prosser, WA · Est. 2020
Local Roots. Quality Work. Reliable Service.
Professional landscaping, lawn maintenance, and irrigation built for the Lower Yakima Valley. Proudly serving homeowners, businesses, property managers, and builders across Prosser, Grandview, Sunnyside, and Toppenish.
- Locally owned by a lifelong Prosser resident
- Licensed, insured & bonded
- Honest recommendations — no upselling
- We show up when promised
Outwest Lawn & Landscape serves Prosser, Grandview, Sunnyside, Toppenish in the Lower Yakima Valley.
Est. 2020
Serving the valley
4
Valley communities
5.0★
Google rating
100%
Licensed · Insured · Bonded
Built for the valley
The most trusted landscaping company in the Lower Yakima Valley.
Outwest Lawn & Landscape is a locally owned company founded in 2020 by Erik Castañeda, a lifelong Prosser resident. We were built on a simple goal: provide dependable, high-quality landscaping while helping improve properties throughout the valley.
Unlike companies that stretch across huge territories, we focus on the communities at the heart of the valley — so you get responsive service, consistent crews, and work completed to a professional standard, every visit.
Erik Castañeda
Owner · Lifelong Prosser resident
What we do
Full-service landscaping, irrigation & property care.
One trusted crew for the whole property — from weekly mowing to new installations, smart irrigation, and everything in between.
Landscaping Services
New installations, renovations, decorative rock, mulch, and planting that transform Lower Yakima Valley properties.
Learn more Lawn Maintenance
Weekly mowing, trimming, edging, seasonal cleanups, and top dressing that keep your property sharp all season.
Learn more
Irrigation Services
Sprinkler and irrigation installation, expert repairs, troubleshooting, and smart controller programming.
Learn more Artificial Turf
Durable artificial grass installation and turf replacement — a flawless, low-maintenance, water-wise lawn.
Learn more
Property Management Services
Ongoing landscape maintenance and property care for residential, commercial, and managed properties.
Learn more
Hardscape & Outdoor Living
Pavers, walkways, borders, and outdoor-living features that add structure and beauty to your landscape.
Learn moreWhy Outwest
A company built like a wagon wheel — every spoke pulling its weight.
Local Ownership
Owned and operated by Erik Castañeda, a lifelong Prosser resident who understands the valley's properties and climate.
Valley Focused
Dedicated exclusively to the Lower Yakima Valley — Prosser, Grandview, Sunnyside, and Toppenish. We are not stretched thin across the region.
Outwest
Way
Full-Service Provider
Landscaping, lawn maintenance, irrigation, turf, hardscape, and property care — one trusted crew for the whole property.
Licensed, Insured & Bonded
Professional accountability and real peace of mind on every job, big or small.
See the difference
From bare dirt to a backyard you'll actually use.
Drag the slider to see a real Outwest transformation — a graded, bare lot reborn as a lush, healthy lawn. New installations, renovations, sod, rock, and irrigation: we handle the whole project, start to finish.
After 
Before Drag the handle to compare · Before & after
How it works
Getting started is simple.
- 1
Reach Out
Call, text, or send a message. Tell us about your property and what you need — no pressure, no pushy sales.
- 2
Get a Free Estimate
We walk your property, listen to your goals, and give you an honest, no-obligation estimate built for your budget.
- 3
We Get to Work
Give us the green light and our crew handles every detail — on schedule, communicated clearly, and done right.
Who we serve
Trusted across every kind of property.
Residential
Helping homeowners maintain beautiful, healthy, and functional outdoor spaces.
Commercial
Landscape maintenance and property improvement for businesses and commercial properties.
Property Management
Reliable service for rental properties, multi-unit developments, and managed sites.
New Construction
Landscape and irrigation installation services for builders and developers.
Reviews
What the valley is saying
4 Google reviews
-
“I've been using Outwest Lawn Care for 3 years now. Eric shows up when he says he is and every time fully equipped for the job at hand. He's very professional through the entire process and I can tell he's got the experience to handle the job in a top notch fashion. Even with the big jobs he's got in the house developments that he's busy with, he takes the time to show up for a single home job like mine. Thanks Eric.”
Jordan Pace 3-year residential client -
“Reasonable prices, great communication and service exceeded our expectations. Would recommend to anyone!! Thank you Outwest Lawn Care!!”
Violeta Diaz Residential -
“Fixed our sprinkler system after several people came to look at it and couldn't!”
Hunter Parsons Irrigation repair -
ResponsivenessPunctualityQualityProfessionalismValue
Yadira Castaneda Verified Google review
Good to know
Answers to common questions
What areas does Outwest Lawn & Landscape serve?
We serve the Lower Yakima Valley — Prosser, Grandview, Sunnyside, and Toppenish. We are based in Prosser and focus exclusively on the valley, so we are never stretched thin. We do not actively take work in Yakima or the Tri-Cities (Kennewick, Pasco, Richland).
What services does Outwest offer?
We are a full-service landscaping and irrigation company: landscaping and installations, weekly lawn maintenance, irrigation installation and repair, artificial turf, top dressing and lawn leveling, hardscape and outdoor living, tree and shrub care, vegetation management, and ongoing property management for residential, commercial, and managed properties.
How do I get a free estimate?
Call or text (509) 778-0187, or send a message through our contact page. We come to your property, listen to your goals, and give you an honest, no-obligation estimate built for your budget.
Is Outwest licensed, insured, and bonded?
Yes. Outwest Lawn & Landscape LLC is fully licensed, insured, and bonded. That means professional accountability and real peace of mind on every job, from a weekly mow to a full landscape installation.
Do you handle irrigation problems other companies could not fix?
Yes — irrigation is one of our specialties. We do more than basic sprinkler repair: we diagnose, install, configure, and program complete systems. Customers regularly come to us after other crews could not figure out their sprinklers.
How long has Outwest been in business?
Outwest Lawn & Landscape was founded in 2020 by Erik Castañeda, a lifelong Prosser resident. Since then we have grown by focusing on customer service, quality workmanship, and long-term relationships throughout the valley.