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Business Details
48 Years
experience
Your Trusted Engineering Partner in Santa Rosa, CA
Established in 1978, Summit Engineering has built a legacy of delivering innovative engineering solutions across diverse industries. Our multi-disciplined team of planners, civil, structural, water/wastewater, and electrical engineers collaborates to transform client visions into reality. With decades of experience in wineries, residential projects, hospitality, and commercial developments, we prioritize understanding client goals and community needs. Our expertise spans civil engineering design, structural solutions, electrical systems, and water/wastewater infrastructure, emphasizing sustainability and functionality.

We maintain long-term client relationships through technical excellence, creative problem-solving, and a commitment to exceeding expectations. Our team's deep knowledge of local permitting processes and regulatory requirements ensures projects progress smoothly from concept to completion. As a Certified California Green Business, we integrate environmentally responsible practices into every project. Our leadership team combines specialized technical skills with decades of regional experience, fostering a culture of collaboration, continuous learning, and community engagement.
Services
Engineering Design Facility Planning Permitting Due Diligence Civil Engineering Structural Engineering Electrical Engineering Water/Wastewater Engineering
Details
  • Year established: 1978
Highlights and features
  • We offer 45+ years of engineering experience in California's North Bay region
  • Our multi-disciplined team handles projects from concept to completion
  • We maintain long-term client relationships through technical excellence
  • Our engineers specialize in local permitting processes and regulations
  • We integrate sustainable practices into every engineering solution
Associations and certifications
  • Certified California Green Business
Services
Engineering Design
Our engineering design services encompass civil, structural, electrical, and water/wastewater systems for commercial, residential, and industrial projects. We transform conceptual ideas into detailed technical plans while maintaining focus on functionality, safety, and sustainability. Our team utilizes advanced modeling tools and practical engineering principles to create cost-effective, constructable solutions that meet both client needs and regulatory requirements.
Facility Planning
We provide comprehensive facility planning services that optimize space utilization and operational efficiency for wineries, production facilities, and commercial developments. Our approach considers equipment layout, regulatory compliance, and vehicular access to create functional, future-ready spaces. We help clients visualize and implement their project concepts through detailed site analysis and strategic development planning.
Permitting
Our permitting experts navigate complex regulatory requirements to secure necessary approvals for your project. With 40+ years of local agency experience, we prepare and submit applications, coordinate with jurisdictions, and resolve issues that arise during the approval process. We ensure compliance with zoning, environmental, and building code requirements while minimizing project delays.
Due Diligence
We conduct thorough due diligence assessments for property acquisitions, evaluating structural, civil, electrical, and environmental factors. Our reports identify potential issues with existing infrastructure, permitting status, and development constraints. We provide actionable recommendations to inform purchasing decisions and project planning for commercial and industrial properties.
Water/Wastewater Engineering
Our water/wastewater engineering services include system evaluations, treatment plant design, and compliance permitting for municipal and industrial clients. We specialize in septic systems, package treatment units, and effluent reuse solutions. Our team addresses both conventional and emerging treatment technologies while ensuring compliance with state and federal regulations for water quality and environmental protection.
People
Yi Yang
President
Yi Yang joined Summit in 2001 and became President in 2018. He specializes in structural design for wineries, commercial buildings, and seismic retrofitting. He oversees project management and structural concept design while managing daily operations of the firm.
Jasper Gehring
Principal, Electrical Division Manager
Jasper Gehring has over 20 years of electrical engineering experience. He manages utility system design and multi-discipline projects, providing peer reviews and expert witness services. He specializes in site development and engineering due diligence.
Demae Rubins
Principal, Planning Division Manager
Demae Rubins brings 20+ years of planning expertise with a background in Landscape Architecture. She specializes in master planning, facility design, and land use entitlement processing for Sonoma and Napa County projects.
Kyle Moyer
Principal, Structural Division Manager
Kyle Moyer has 17+ years of structural engineering experience. He focuses on structural systems, catwalks, rigging systems, and constructability analysis. He has worked on diverse projects ranging from small renovations to international developments.
Gina Giacone
Principal, Water/Wastewater Division Manager
Gina Giacone specializes in water and wastewater treatment systems. With experience designing systems from 1,000 to 1 million gallons per day, she manages permitting and compliance for treatment plants and collection systems.
Questions
What engineering services does Summit offer?
Summit provides civil, structural, electrical, and water/wastewater engineering design, facility planning, permitting assistance, and due diligence services for commercial, residential, and winery projects.
How long has Summit Engineering been in business?
Summit Engineering has served clients since 1978, providing engineering solutions for over 45 years in California's North Bay region and beyond.
What areas do you serve?
While based in Santa Rosa, we serve clients throughout California's North Bay region including Sonoma, Napa, Solano, and Merced counties.
Can you help with permitting processes?
Yes, our team has extensive experience navigating local agency requirements and can assist with preparing, submitting, and acquiring necessary permits for your project.
Are you experienced in sustainable engineering?
As a Certified California Green Business, we integrate sustainable design principles into all projects, focusing on energy efficiency, water conservation, and environmentally responsible solutions.