Lawn Care & Landscaping in Washington County
Washington County properties—from Chartiers Valley to rural townships—get the same technical rigor we bring across Western PA.
Serving Washington County and Surrounding Areas
We also service some properties outside the area shown above—call 412-822-9153 to confirm coverage for your address.
South of the city, still Western PA
Washington County homeowners often tell us they’re tired of one-size-fits-all mailers. We get it. Your slope, soil, and shade might be nothing like your cousin’s in Wexford—and your program shouldn’t pretend otherwise.
Call 412-822-9153 to see if we service your address and to discuss timing for the season ahead.
Popular Services in Washington County
Programs homeowners in Washington County request most often
Lawn Care Programs
Seasonal fertilization tuned for Washington County’s blend of sunny ridge lots and damp lower ground.
Aeration & Overseeding
Opens clay and silty soils that bake hard by late summer along county roads.
Plant Health Care
Evergreen windburn, scale on foundation plants, and summer mites—we treat what we find.
Landscape Design
Design-build through Eichenlaub for major projects; Keystone Green for ongoing lawn and plant vigor.
Why Washington County Homeowners Choose Keystone Green
South of Pittsburgh, Washington County mixes older boroughs, ridge-top subdivisions, and lots that still touch farmland. Wind exposure, well water, and septic setbacks come up often. Soil types vary more than newcomers expect; we don’t assume Allegheny-style clay without looking. Keystone Green extends service into Washington County for homeowners who want a professional program without hiring a different company every season.
Services Available in Washington County
Full lawn, turf, and plant health programs for properties in Washington County
Lawn Care
Achieve a lush, healthy lawn with Keystone Green's expert lawn care services. Fertilization, aeration, and weed control tailored to your needs.
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Lawn Fertilization
Keystone Green offers customized fertilization plans, professional application, and ongoing monitoring, with a seasonal schedule, typically every 6–8 weeks.
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Weed Control
Eliminate weeds and maintain a flawless lawn with Keystone Green's expert weed control treatments. Say goodbye to invasive plants.
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Grub Control
Prevent lawn damage with professional grub control services. Stop pests before they ruin your grass with Keystone Green's effective treatments.
Learn More → Aeration & Overseeding
Core aeration relieves soil compaction and improves water absorption, while overseeding fills bare spots with premium seed blends for a thicker, healthier lawn.
Learn More → Landscape Design Services
Elevate your outdoor space with expert landscape design. Keystone Green creates beautiful, functional landscapes tailored to your needs.
Learn More → Irrigation Management Services
Optimize water usage with expert irrigation management. Keystone Green ensures efficient, sustainable watering for a healthy landscape.
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Landscape Build Services
Transform your outdoor space with Keystone Green's expert landscape build services. Custom designs and quality craftsmanship.
Learn More → Night Lighting Services
Transform your outdoor space with professional night lighting services. Keystone Green designs and installs stunning, energy-efficient lighting.
Learn More →Reviews From the Pittsburgh Region
Homeowners across Western Pennsylvania trust Keystone Green for consistent results
Get a Free Quote for Your Washington County Property
Tell us about your lawn and landscape goals—we’ll recommend a program that fits your property and budget.