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Business Details
44 Years
experience
Sustainable Custom Construction Services in Takoma Park, MD
At Joseph Klockner & Company, we have dedicated over four decades to redefining sustainable construction through a harmonious blend of traditional craftsmanship and innovative building techniques. Our expertise lies in creating custom residential projects that prioritize energy efficiency, utilizing materials like geothermal systems, recycled components, and passive house standards. With a client-centric approach, we specialize in transforming complex visions into functional, enduring spaces, from modern cottages to urban row houses.

Our team of LEED-certified professionals collaborates with architects and consultants to deliver designs that respect both ecological integrity and aesthetic elegance. Every project reflects our commitment to transparency, durability, and community-focused building practices that stand the test of time.
Services
Energy Efficient Kitchens Open Floor Plans Additions Restorations Green Building Passive House Design Geothermal Systems Natural Material Construction
Details
  • Year established: 1982
Highlights and features
  • We have 41 years of experience in sustainable residential construction.
  • Our team includes LEED-certified professionals and energy efficiency experts.
  • We implement geothermal and passive house technologies for ultra-low energy use.
  • Client-focused approach prioritizing clear communication and tailored solutions.
  • Award-winning projects recognized for innovative green building practices.
Associations and certifications
  • LEED
What people say
Spectacular results Expertly managed Sustainable luxury Energy-efficient designs Seamless communication
Services
Sustainable Construction
We specialize in eco-conscious residential construction using recycled materials, geothermal systems, and passive house standards. Our projects minimize environmental impact while maximizing energy efficiency through advanced insulation, natural ventilation, and solar orientation. Each build integrates cutting-edge technology with time-tested techniques to create durable, low-energy homes that meet LEED certification criteria.
Passive House Design
Our passive house designs achieve ultra-low energy consumption through airtight construction, high-performance windows, and thermal bridging reduction. By optimizing natural light and airflow, we create comfortable living spaces that require minimal mechanical heating or cooling. Projects like the Derwood Passive House demonstrate our ability to blend traditional aesthetics with rigorous energy-saving standards.
Home Additions
We design and build custom home additions that enhance functionality while maintaining architectural integrity. From multi-story expansions to modern cottages on shared lots, our solutions prioritize seamless integration with existing structures. The Great Falls Mother-Daughter Duet project exemplifies our skill in creating harmonious, independent living spaces within natural environments.
Geothermal Systems
We install geothermal heating and cooling systems that leverage stable underground temperatures for year-round efficiency. These systems reduce utility costs and carbon footprints while providing reliable climate control. Our expertise includes integrating geothermal technology with other sustainable features like greywater recycling and composting toilets for comprehensive eco-friendly solutions.
LEED Certification
We guide projects through LEED certification by implementing sustainable site development, water efficiency, and indoor air quality measures. Our team collaborates with certified professionals to ensure compliance with rigorous environmental benchmarks. Recognized for projects like the LEED Gold Corcoran Street renovation, we deliver buildings that balance ecological responsibility with modern comfort.
People
Joseph Klockner
Founder
With over 41 years in sustainable construction, Joseph Klockner & Company established the company's commitment to eco-friendly building practices and community-focused design.
Larry Neal
Project Manager
Larry Neal oversees complex renovations and additions, ensuring seamless execution of energy-efficient designs while maintaining open communication with clients throughout the building process.
Angel Martin
Lead Designer
Angel Martin specializes in integrating modern aesthetics with sustainable materials, creating functional spaces that reflect clients' unique visions and environmental priorities.
Marty Viger
Construction Supervisor
Marty Viger manages on-site operations, ensuring adherence to quality standards and timelines while implementing innovative building techniques for durable, energy-efficient results.
Questions
What types of residential projects does Joseph Klockner & Company & Company specialize in?
We specialize in sustainable custom homes, renovations, and additions including LEED-certified builds, passive house designs, and geothermal system integrations.
How does Joseph Klockner & Company & Company incorporate eco-friendly practices?
We use recycled materials, geothermal energy, passive solar design, and water-saving technologies while prioritizing minimal environmental disruption during construction.
Can Joseph Klockner & Company handle complex architectural challenges?
Yes, our team excels at solving complex design problems, as demonstrated by projects requiring multi-phase expansions or integrating modern systems into historic structures.
Are your projects certified by green building standards?
We deliver LEED-certified projects and meet passive house standards, ensuring compliance with rigorous environmental benchmarks for energy efficiency and sustainability.
How do you ensure client satisfaction throughout the process?
We maintain clear communication from initial design through completion, providing regular updates and involving clients in key decisions to align outcomes with their vision.
What areas do you serve?
We primarily serve Takoma Park, MD, Washington D.C., and surrounding areas including Great Falls, VA and Derwood, MD.