J Weir Masterworks, Inc. is a licensed general contracting and design firm. JWMW is a new level of attention to detail, client satisfaction and beautifully executed projects. JWMW is the result of 4 generations of experience in design and construction. A history of integrity in our craft has done more than just create structures to work and live in, it has built lasting relationships.


  • healthy client relationships built on honesty, integrity and transparency
  • accurate, efficient coordination of sub-contractors and materials
  • contextual design with sustainable material applications
  • on time and on budget project management
  • precision tooling and superior craftsmanship
  • clean and safe project sites displaying professionalism 


JWMW is a licensed general contractor that builds award winning projects with 35 expert sub-contractors. We have decades of building a team to execute meticulous details. We manage and build permitted projects from designers and architects. With 20 years of professional architectural background, in entry to high end projects, we know when the architect needs a phone call for a site visit, the client needs to be involved, or if an RFI should be sent out. We understand when and how to solve details in the field with the spirit of the project’s design staying intact. That is important. We specialize in contemporary projects but are not limited to that style. Cost analysis, value engineering and technical budgeting spear head our projects as they are being designed by the architects. We craft the client and architect’s vision with a team process. 

JWMW also provides design-build services that can be a great value for the client. We design in our studio and often the same two hands build in the shop or field. We operate like a custom furniture builder but instead replace a chair with a house. We take a project from conceptual design with illustrations, right into construction documentation, permitting and construction. We work one on one with the client, start to finish, with one point of contact. This allows us to move fast, stay on schedule and manage costs and changes instantly. We are involved until the last coat of paint on your project dries! We can create a time and financial savings for our clients with a packaged designer led build approach.

JWMW carries a general “B” license and is incorporated.  We have workers compensation on all employees, with a minimum 2 million dollar liability policy on our projects.  


1595 Thompson Blvd., Ventura, CA 93001

Hours – Monday-Friday 9am – 5pm