Our Team 


EdWard Westbrook

Chief Executive Officer

For over three decades Edward Westbrook has successfully managed millions of dollars in elaborate hardscape and stone masonry projects. His expertise allows him to know which stone is going to work at a particular point in any project. As CEO of QuarryHouse, Westbrook has traveled worldwide to develop extraordinary resources for stone and building materials. For each installation, he creates a unique sense of place in each setting. In addition to working with Lawrence Halprin, Westbrook has collaborated with renowned architects and designers such as Andrew Skurman Architects, BCV Architecture + Interiors, KenKay Associates, Richard Manion Architecture, Tucker & Marks Design, and William Hablinski.

With this expertise, Westbrook has lectured at Berkeley Engineering, City College of San Francisco, and The Academy of Art University. He serves on the Board of Directors of the Northern California Chapter if the ICAA, the Program Advisory Council of the American College of the Building Arts and the Architecture/Interior Design Advisory Committee of CCSF.


Mary Ann Westbrook

Founder and Director of Human Resources

Mary Ann Westbrook is a founder of QuarryHouse and serves as its Director of Human Resources. Mary Ann has over 30 years of management experience. She plays a vital role in the company fostering critical relationships, implementing corporate values and overseeing finances. In addition to her position at QuarryHouse, she is the Office Manager for a Marin financial firm and the Operations Manager for a technical recruiting firm in San Francisco. In her off hours she is a volunteer with Park Champions at China Camp State Park along with Ed working to repair and preserve the trail system with the FOCC.


Dillon Westbrook

Senior Project Manager

Dillon Westbrook is a second-generation stonemason with over 20 years of experience in all facets of the stone trade, from installation and fabrication to management. His work with QuarryHouse includes both residential estates and public projects. With wide-ranging and diverse masonry training, Dillon's expertise comprises Italianate styled villas, English country gardens, modern houses, and fine art installations. He has managed projects for architectural firms such as Sutton-Suzuki, Atelier Ugo Sap and Ike Kligerman Barkley. With a BA in philosophy from the University of California at Santa Cruz and an M.F.A. in Poetry from Mills College, Dillon brings a cultivated perspective to his projects.


Eugenio Arcangeli

Overseas Project Manager

Eugenio Arcangeli graduated in Milan with a degree in Geometra (a combination of Architecture and Engineering). Born in Verona, Italy from a family deeply rooted in the stone industry, Eugenio has more than 35 years of experience working with stone. He has worked with QuarryHouse since 2001 and became the Overseas Project Manager for QuarryHouse Atelier Verona in 2010. Over the years Eugenio has developed close contacts with quarries and fabricators all around the world, specializing in the stones of Italy, Spain, France, and England. Eugenio has been sourcing, inspecting and working on site with quarries and fabricators, assisting to keep production, quality of material and workmanship on schedule and on budget.


Jeff Clark

Head Estimator

Following the completion of a bachelor’s degree in Landscape Architecture at the University of Massachusetts and a master’s degree in both City Planning and Construction Management from University of California, Berkeley, Jeff joined the QuarryHouse team as the Head Estimator in 1997. Prior to that Jeff worked in the field on various projects for stone masonry supply and installation companies. He has also worked as a project landscaper designer which introduced him into a value-based working environment; design goals were achieved while adhering to budgetary constraints. Jeff was a member of the team that retrofitted the Flood Building in San Francisco; this experience gave him a glimpse into large scale work in an urban environment. During his time at QuarryHouse he has produced estimates for small residential projects and for large commercial and publicly accessible projects. Past estimates have ranged in value up to millions of dollars per project. Jeff's contributions are integral to the success of the company.


Cassie Westbrook

Project Coordinator

Cassie comes to Construction Management by way of her experience in professional Theatrical Stage Management and a background in classical Art and Architecture. Her BFA from Savannah College of Art and Design serves her well in marrying designers artistic vision to the technical knowledge of stone masonry. Excelling in interpersonal communication and years of experience in logistics as well as people management make her well suited to the demands of artisan craftsmanship on high-end residential.


Joy Robinson

Executive Assistant

Joy came to QuarryHouse after living many years in Southern France, where she developed a love for medieval stone architecture and taught English at the university in Montpellier and Nimes. Previous to academia she worked as an Executive Assistant for an award-winning design architecture firm in New Orleans. Joy completed her undergraduate degree at Wesleyan University and earned her graduate degree from UC Berkeley. In her role as Executive Assistant to the CEO, she supports marketing and operations.


Salvador Ochoa


Herminio Ochoa


Juan Santoyo