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Business Details
41 Years
experience
Expert Lawn Care Services in Tri-Cities & Yakima WA
Colonial Lawn & Garden has been dedicated to transforming landscapes since 1985, delivering exceptional lawn care and maintenance services to homeowners in Tri-Cities and Yakima. Our team of highly skilled technicians prioritizes meticulous attention to detail, ensuring every project reflects our commitment to quality and customer satisfaction. With decades of experience, we specialize in fertilization programs, pest control, sprinkler system maintenance, and comprehensive landscape enhancements.

Our approach combines proven expertise with eco-friendly practices, offering tailored solutions that address each client's unique needs. We pride ourselves on fostering long-term relationships through transparent communication, reliable service, and a steadfast dedication to maintaining vibrant, healthy landscapes year-round.
Services
Lawn Care Program Sprinkler Maintenance Pest Control Tree/Shrub Care Lawn Maintenance Aeration Snow Removal Landscape Enhancements Irrigation Management Weed Control
Details
  • Year established: 1985
Highlights and features
  • We offer 40+ years of specialized lawn care expertise in Central Washington's climate
  • Our licensed technicians provide 6 lawn inspections annually as part of premium programs
  • We guarantee service quality with seasonal warranty coverage for breakthrough weeds
  • Our team holds WSDA App Licenses for professional pesticide application
  • We coordinate full-service property care programs tailored to individual needs
What people say
Knowledgeable, professional Lawn has never been better Amazing work Prompt service Property value increase
Services
Lawn Care Program
Our comprehensive fertilization program delivers essential nutrients to maintain lush, healthy turf. Technicians apply kid- and pet-friendly treatments at optimal intervals to promote root development and weed resistance. The six-application schedule includes pre-emergent crabgrass control and seasonal adjustments for year-round lawn vitality.
Sprinkler Maintenance
Professional sprinkler system care includes seven seasonal inspections for optimal water distribution. Our technicians perform spring start-ups, winterization, and mid-season adjustments to prevent dry spots and water waste. System checks ensure efficient operation while adapting watering schedules to seasonal precipitation patterns.
Perimeter Pest Control
This preventive service creates chemical barriers against common pests like ants, spiders, and earwigs. Technicians apply treatments around foundations, windows, and entry points using non-invasive methods that protect indoor air quality while maintaining exterior pest deterrence.
Tree/Shrub Care
Professional tree and shrub maintenance combines disease prevention with aesthetic pruning. Our program includes insect control, fungal treatments, and strategic trimming to enhance plant health while improving property value through maintained canopy structures and seasonal flowering cycles.
Lawn Maintenance
Full-service property care includes mowing, edging, and debris removal tailored to property specifications. Additional offerings cover aeration, dethatching, and seasonal cleanups to maintain optimal turf health while addressing specific landscape requirements through customized maintenance schedules.
People
Lance
CEO / President
Lance leads Colonial Lawn & Garden with over 35 years of industry experience, focusing on operational excellence and customer satisfaction. He oversees strategic growth while maintaining the company's founding commitment to quality service.
Nathan
Chief Operating Officer
Nathan manages daily operations with WSDA App License #78501, ensuring technical compliance and service quality. He coordinates technician training programs and implements process improvements for efficient service delivery.
Dillon
Tri-Cities Division Manager
Dillon supervises Tri-Cities operations with WSDA App License #86600. He specializes in lawn diagnostics and client relations, maintaining service standards across residential and commercial accounts in the region.
Andrew
Lawn Care/Maintenance Manager
Andrew directs maintenance teams with WSDA App License #91415. He develops customized care plans and oversees equipment maintenance to ensure consistent service quality across all client properties.
Erik F.
Landscaping/Irrigation Manager
Erik manages irrigation systems and landscaping projects with WSDA App License #84244. He specializes in water-efficient system design and seasonal landscape transitions for optimal property appearance.
Questions
What lawn care services do you offer?
We provide fertilization programs, pest control, sprinkler maintenance, tree/shrub care, aeration, and seasonal cleanups. Our technicians create customized plans for residential and commercial properties.
How often do you service properties?
Premium programs include six annual treatments starting February-March, with sprinkler systems checked seven times seasonally. Economy plans cover four applications through August.
Are your treatments pet-safe?
All materials are EPA-approved and safe for pets/children once dried. We provide specific post-treatment instructions via email to ensure proper drying times for each application.
Do you guarantee results?
We warranty our service quality for breakthrough weeds between scheduled applications. Clients can request follow-up treatments if desired results aren't achieved within two weeks.
How are service prices determined?
Lawn care is priced at $62 per 1,000 sqft (increasing $8.25 per increment). Technicians provide accurate estimates after property assessment to ensure proper material allocation.
Can you help with irrigation issues?
Our licensed technicians perform sprinkler start-ups, winterization, and mid-season adjustments. We optimize water distribution patterns to prevent dry spots and improve system efficiency.
Reviews (1)
Steve Weeks
Sep 03, 2025 Report
Reviews were only mediocre about Colonial, but I thought I'd give them a try. Wish I hadn't. They came out and sprayed for weed control, 6,700 sq. ft. of lawn, and did it all in less than 10 minutes, including dragging the hose out and putting it away. Two weeks later, only about 20% of the weeds were wilting.

Had to have them come back out for a second application, for which they charged me, even though they shouldn't have, and they didn't refund my payment.

They also sprayed for Crabgrass control on a separate occasion, and again, two weeks later, only about 20% of the Crabgrass was wilting. Had to have them come back out and spray again. They weren't supposed to spray the Bent grass in the lawn, but they did it anyway, and now there are dead spots all over my back lawn. I could not be more disappointed in my experience.