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Business Details
40 Years
experience
Your Trusted Partner for Landscaping & Pool Solutions in Mount Kisco, NY
Johnsen Landscapes & Pools has been transforming properties into exceptional outdoor environments since 1986. Our team of award-winning designers and construction experts specializes in creating custom landscapes, swimming pools, and outdoor living spaces that harmonize with each property's unique characteristics. With decades of combined experience across residential and commercial projects, we employ advanced design technology and collaborate with architects and engineers to deliver seamless solutions. Our comprehensive services include initial site assessment, detailed CAD design plans, construction management, and ongoing property maintenance.

We serve clients throughout New York, Connecticut, Massachusetts, Maryland, Florida, and California, prioritizing environmental sustainability and functional beauty in every project. Our principals have authored industry-recognized books and received prestigious design awards, demonstrating our commitment to innovation and excellence. By integrating client visions with site-specific elements like topography and native vegetation, we create spaces that enhance property value and provide lasting enjoyment. Our process emphasizes transparent communication, budget-conscious planning, and meticulous attention to detail from concept through completion.
Services
Landscape Design Swimming Pool Installation Outdoor Kitchen Design Stone Wall Construction Landscape Lighting Property Maintenance Drainage Systems Tennis Court Design Garden Renovation Pool House Construction
Details
  • Year established: 1986
Highlights and features
  • We offer 35+ years of experience in landscape architecture and pool design
  • Our team includes award-winning designers with published industry expertise
  • We provide full-service solutions from concept to construction completion
  • We maintain environmental sustainability through native plant integration
  • Our principals have received APLD Merit Awards for innovative design
Services
Landscape Design
Our landscape design service creates customized outdoor environments that balance aesthetics with functionality. We develop detailed CAD plans considering terrain, vegetation, and client preferences. The process includes site assessment, material selection, and integration of features like walkways and water elements to enhance property value and usability.
Swimming Pool Installation
We specialize in custom swimming pool and spa installations tailored to property characteristics. Our approach combines structural engineering with aesthetic design to create safe, durable installations. Services include saltwater pool options, pool house construction, and integration with surrounding landscapes for cohesive outdoor living spaces.
Outdoor Living Spaces
Our outdoor living solutions transform backyards into functional entertainment areas. We design and build complete outdoor kitchens, dining areas, and lounging spaces that complement architectural styles. Features include weather-resistant materials, integrated lighting, and seamless transitions between indoor and outdoor environments for year-round enjoyment.
Stone Wall Construction
We construct durable stone walls that address terrain challenges while enhancing visual appeal. Using natural stone materials, our walls provide structural support for sloped properties and create defined garden spaces. The designs incorporate drainage solutions to prevent water damage while maintaining aesthetic continuity with surrounding landscapes.
Landscape Lighting
Our landscape lighting designs extend outdoor usability into evening hours while highlighting architectural features. We install energy-efficient LED systems that enhance safety along pathways and accentuate plantings. The designs balance functionality with artistic elements to create inviting nighttime environments that maintain security and visual interest.
People
Jan Johnsen
Co-Principal
Award-winning landscape designer with graduate degrees in planning and landscape architecture. Author of three gardening books and recipient of the APLD Merit Award. Has designed projects across five continents and contributes regularly to horticultural publications.
Rafael Algarin
Co-Principal
Construction expert with extensive experience managing residential and commercial projects across four states. Known for combining technical precision with cost-effective solutions to deliver complex landscape installations on schedule and within budget.
Laura McKillop
Senior Design Associate
Landscape design specialist with a master's degree from Columbia University. Experienced instructor at NY Botanical Garden with expertise in plant selection and garden design that balances aesthetics with ecological sustainability for both large and small properties.
Questions
What areas do you serve?
We serve Westchester, Putnam, Dutchess, Columbia, Rockland, Orange, Ulster, Fairfield, and Litchfield counties, plus New York City boroughs and projects in Massachusetts, Maryland, Florida, and California.
What landscape design services do you offer?
We provide complete landscape design services including site assessment, CAD planning, material selection, and construction oversight for gardens, pools, outdoor living spaces, and property enhancements.
Do you handle both design and construction?
Yes, we offer full-service design-build solutions with coordinated design planning and construction management to ensure seamless project execution from concept through completion.
What pool types do you install?
We specialize in custom saltwater swimming pools, spas, plunge pools, and associated structures like pool houses and cabanas tailored to each property's unique characteristics.
How do you approach environmental sustainability?
We prioritize native plant selection, stormwater management systems, and preservation of existing terrain features to create ecologically responsible landscapes that require less maintenance.
Can you maintain existing landscapes?
Yes, we offer property care consultation and oversight services to maintain landscape health, manage plant growth, and ensure ongoing functionality of installed features like irrigation systems.