Business Details
39 Years
experience
Award-Winning Landscaping Services in Simi Valley
Founded in 1987, Green Horizon Landscaping has been transforming outdoor spaces in the Conejo Valley for over three decades. Our owner, Glenn Thompson, brings expertise cultivated through decades of hands-on experience, starting with his family's nursery background and evolving into full-scale landscape design and construction. Recognized with multiple awards for excellence in landscape design and build projects, we maintain active membership in the California Landscape Contractors Association since 1990. Our commitment to quality is demonstrated through our A+ rating with the Better Business Bureau and consistent 5-star online reviews.We specialize in creating custom outdoor environments that balance aesthetic appeal with long-term functionality, offering services ranging from complete backyard renovations to specialized pool and spa installations. Our reputation for integrity and craftsmanship has been built through decades of repeat business and client referrals, ensuring every project reflects our core principle of doing it right the first time.
Services
Landscaping
Custom Pools
Outdoor Living
Pool Remodel
Backyard Remodel
Spa Installation
Patio Design
Firepit Construction
Pavers Installation
Fireplace Building
Details
- Year established: 1987
Highlights and features
- 35+ years of local landscaping expertise since 1987
- Multiple award-winning landscape design and build projects
- Maintain A+ rating with Better Business Bureau
- Specialized expertise in complete backyard transformations
- Proven track record of 5-star client satisfaction
Associations and certifications
- Better Business Bureau
- California Landscape Contractors Association
What people say
Award-winning designs
Exceptional craftsmanship
Reliable service
Professional team
Beautiful transformations
Services
Landscaping
Comprehensive landscape design and installation services creating functional, aesthetically pleasing outdoor spaces. Our team combines horticultural expertise with artistic vision to develop customized solutions that enhance property value and usability. Services include plant selection, irrigation systems, and hardscape integration.
Custom Pools
Tailored swimming pool design and construction services focusing on seamless integration with existing landscapes. We offer complete pool packages including water features, lighting systems, and surrounding deck areas using premium materials for lasting durability and visual appeal.
Backyard Remodel
Full backyard transformation services addressing both aesthetic and functional improvements. Our process includes space planning, material selection, and implementation of multi-functional outdoor living areas that maximize usable space while maintaining environmental harmony.
Spa Installation
Professional spa installation services creating relaxing outdoor retreats. We specialize in integrating spas with existing pool systems or standalone installations, including surrounding decking, safety features, and complementary lighting solutions for enhanced ambiance.
Outdoor Living
Design and construction of complete outdoor living environments featuring kitchens, dining areas, and entertainment spaces. Our solutions incorporate durable materials, weather-resistant components, and thoughtful layouts that extend living areas into exterior environments.
People
Glenn Thompson
Owner & President
With over 35 years in landscaping, Glenn founded the company in 1987 after working at his family's nursery. Recognized for design excellence, he focuses on quality craftsmanship and client education about long-term landscape value.
Mark Swink
Founder
Established Swinks Creations in 1984, bringing 35+ years of local landscaping experience. Maintains strong industry connections through California Landscapers Association membership since 1986 and prioritizes integrity in all projects.
Questions
What services does Green Horizon Landscaping offer?
We specialize in complete landscape design and installation including custom pools, backyard renovations, patios, firepits, and outdoor living spaces tailored to your property's unique characteristics.
Which areas do you serve?
We serve homeowners throughout the Conejo Valley including Simi Valley, Thousand Oaks, Westlake Village, Moorpark, and Agoura Hills.
Are you BBB accredited?
Yes, we maintain an A+ rating with the Better Business Bureau, reflecting our commitment to ethical business practices and customer satisfaction.
How experienced is your team?
Our owner has over 35 years of local landscaping experience since 1984, with specialized expertise in both residential and commercial outdoor space transformations.
What makes your company different?
We combine decades of technical expertise with artistic vision, focusing on creating functional, beautiful spaces that maintain long-term value through quality craftsmanship.
Can you handle complete backyard renovations?
Yes, we offer full-service backyard transformations from initial design through final installation, including pools, spas, patios, and complete landscape overhauls.
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