Locations
D+H Construction
Owner
Key Contacts
Owners, Principals & Senior Executives
Jack Halperin's Bio
A second-generation contractor, Jack has held multiple positions with D+H, starting in carpentry, moving to site superintendent, then on to project manager, and is currently one of the company owners. As project manager at D+H, he provides coordination between the project owner and field personnel to ensure that the owner’s needs are met, develops and implements project documents, works closely with architects, construction managers, subcontractors, and superintendents, creates complex schedules, ensures excellent quality control and site safety, and maintains clear communication among diverse stakeholders. He is also involved in new project planning for D+H, including drawing review, subcontractor selection, bid proposals, and budget development. Jack believes in sustainability through good construction practices and job-site awareness.
Education
University of California, Berkeley: BA in Political Science, 2009.
The Sierra Institute: Field study program through Humboldt State Extended Education: Reclaiming Your Place – The art and study of sustainable living, 2008.
Jansen Lum's Bio
Jansen, a native from the East Bay, is a licensed architect and contractor that has been involved in design and construction management in the Bay Area for over two decades. He has a Bachelor of Architecture with a minor in Art History from California State Polytechnic University Pomona. He has a background in construction management with on site management experience. His prior position specialized in construction of multi-family housing, but has experience in commercial, retail, health care, institutions, and single-family. Jansen brings a unique perspective to the office having been a design professional as well as a construction project manager.
Education
California State Polytechnic University, Pomona: Bachelor of Architecture, 1996 (Minor in Art History)
The Royal Melbourne Institute of Technology: Study Abroad Program (Melbourne, Australia)
Jeff Halperin's Bio
Founding partner and president of D&H Construction, Jeff has worked in the construction industry for his entire adult life. He met his partner, David Deslierres, when they were working as finish carpenters on a kitchen project in the 1970s. They incorporated in 1981, and since then the work has included all types of multi-unit construction, from complex rehabs to new construction. Jeff is involved in all aspects of the business, including bidding projects, value engineering, overseeing the project management team, and interacting with owners and architects. When not in the office Jeff is most often on one of his bicycles.
Marshall Snow's Bio
As a fourth-generation contractor, Marshall has been involved in numerous aspects of the construction industry for most of his life. He has worked on various project types ranging from historic restoration, new custom homes, and affordable housing. Marshall graduated with a BS in Urban Studies from San Francisco State University, where his studies focused on land use planning, affordable housing, and green building. Professionally, he has worked for nonprofit developers, community development groups, and city planning departments focusing on sustainable development, planning, and policies at the local and regional levels. Marshall is responsible for estimating, scheduling, and overseeing projects through completion.
Estimating, Purchasing & Preconstruction
Oskar Contreras's Bio
With over twenty years of experience, Oskar has been involved in all aspects of construction — construction laborer, draftsman, project engineer, project manager, and estimator. Previous work has included cost engineering, CAD, project scheduling, project control activities, contractor bid reviews, and productivity analysis. As Project Manager at D&H, Oskar is the primary point of contact with the owner and architect, and he works directly with the job site superintendent in scheduling and coordinating employees, subcontractors, and vendors, and managing the project budget. Oskar is fluent in English and Spanish. He’s a licensed amateur radio operator and IT enthusiast.
Education
Chabot College – Hayward, CA: Computer Science | 1999-2000
Completed programming courses in Visual Basic, C++, in addition to general requirements.
Universidad de San Carlos Guatemala, C.A.: Architectural Studies | 1990-95
Completed program courses; all fundamentals, elective, seminary course required to graduate.
Completed 8 months of required field practice.
Liceo Guatemala Quetzaltenango, C.A.: Associate degree in Arts & Sciences | 1988-89
Completed 3 years general studies and 2 years of diversified studies to obtain degree.
Graduated cum laude from 36th Promotion, 1989.
Operations
Alvin Saechao's Bio
As an Assistant Project Manager, Alvin brings exceptional managerial, time management, and follow-through skills to each project. He manages all aspects of the project budget, issuing Prime and Subcontractor change orders, and developing and maintaining project schedules.
Education
City College, San Francisco, CA: General Education (2016)
Antishia Wright's Bio
Antishia brings over 15 years of experience in construction and most recently worked on teams at Rossi Builders and Thompson Builders. She has worked on a broad range of projects from civil (Union City BART, Caltrans facilities) to residential (72 Townsend) to commercial (TIs for Spotify and Morgan Stanley).
Education
Chabot College: Associates Degree
Giovany Silva's Bio
Giovany has been involved in construction management for six years. His main responsibilities from 2015 to 2019 were to facilitate communication between owners, architects, and subcontractors. In addition to assisting the superintendent in the field, he was involved in all project areas, including subcontractor coordination, scheduling, construction safety, and monitoring.
From 2019 to the present, he has been the superintendent of a $3.5 million project in San Francisco. He also acts as assistant project manager, managing all aspects of the project budget, such as issuing contractor change orders, issuing monthly pay applications, running weekly construction meetings, and issuing construction cost budgets.
Education
California State University, East Bay: Master of Science in Construction Management, 2015
University of California, Berkeley: Bachelor of Arts in Architecture, 2013
Jim Bourque's Bio
Jim is a senior construction project manager with extensive and diverse project management experience. He has also worked as a superintendent and director of construction operations. He is a highly effective team leader with a proven ability to successfully manage and deliver multimillion-dollar projects that have consistently exceeded customer expectations, on time and on budget. Jim is able to manage multiple complex projects simultaneously, utilizing his exceptional communication and interpersonal skills. He works effectively with superintendents, subcontractors, architects, engineers, and inspectors, and has managed project budgets up to $250M.
Education
Wayne State University: Liberal Studies
Wayne County Community College: EMT Program
Los Angeles Valley College: Administration of Justice Program
Margaritha Tahan's Bio
With over 20 years of industry experience, Margaritha is skilled in all aspects of construction administration including insurance compliance, contract compliance, preparing submittals, change orders, RFIs, proposals, bids, marketing and sales, and monthly meeting coordination. At D+H, Margaritha is responsible for reviewing and analyzing owner/GC insurance requirements, tracking subcontractor insurance compliance, processing submittals, RFI preparation, subcontractor bid invitations, processing owner and subcontractor change orders, and compiling close-out documents. She is a proponent of affordable housing, believing that it is a basic right for everyone.
Education
Bundeshandelsakademie (Business Academy, five years) – Villach, Austria: Graduated with Matura (exam that qualifies to enter any university in Austria), 1981
Tori Hunter's Bio
With over 20 years in the construction industry, Tori has handled all aspects of office administration and assistant project management, including organizing job walks, preparing bid proposals, owner contract compliance, insurance compliance, tracking owner and subcontractor change orders, coordinating subcontractors and inspections, and managing close-out procedures and warranty documents. Her other duties have included HR, accounts payable/receivable, owner invoicing, subcontractor pay applications, and processing certified payroll.
As assistant project manager with D&H, she assists in preparing bid proposals, provides subcontractor bid analysis, prepares subcontracts, and processes submittals, RFIs, ASIs, and subcontractor change orders throughout the project. Her additional job duties include prequalifying subcontractors, setting up job sites, preparing reports, monitoring close-out requirements, safety compliance, and archiving documents.
Education
Contra Costa College, CA: Administration of Justice (1995-97)
Wynne Kwee's Bio
Wynne brings over 15 years of experience in construction management and project management. Most recently, she managed a 90-unit affordable housing project in downtown Oakland and a 160-unit affordable housing rehab project in SF’s Mission District. With experience managing cross-functional teams, Wynne is passionate about inspiring people to grow and succeed.
Education
University of California Berkeley Extension: Certificate of Sustainable Design and Certificate of Interior Design and Interior Architecture
Northwestern University J.L. Kellogg Graduate School of Management: Master of Business Administration
University of California Berkeley College of Engineering: Bachelor of Science in Electrical Engineering and Computer Science
Finance & Accounting
Alice Wilson-Abramson's Bio
Alice brings exceptional organization and complex problem-solving skills to the Accounting team, where she oversees contract requirements, budgets, and documentation. Prior to D+H, Alice worked in the construction industry as an accounts receivable/payable professional with a San Francisco firm, where she handled all aspects of accounting.
Education
University of California, Los Angeles: Bachelor of Science – General Biology, 1996
Mouang Blackshere's Bio
As part of the Accounting team, Mouang’s focus is on subcontractor billing and vendor payables. She serves as the main point of contact for D+H Accounts Payable. Mouang brings broad experience in HR, payroll, banking, office administration, and accounts payable and receivable – having supported a general contractor and an iron and metal fabricator.
Other
Nicole Snow's Bio
Nicole is a nonprofit and corporate social responsibility professional with experience in program and project management, operations, finance, and marketing. She is a highly organized thinker with a proven ability to manage complex projects, create and streamline processes, and develop effective communications. She is very skilled at working across global virtual teams, and building and maintaining relationships with a broad cross-section of peers, executives, partners, and clients/users.
Education
University of California, Berkeley: B.A. American Studies, 2003.
Sacramento State University: Art & Architecture, Italy, 2002.