GMJ Construction

Customer experiences with GMJ Construction are consistently positive and centered on their Eichler and mid-century modern renovations in the Bay Area. Reviewers report that GMJ can handle complete home remodels, room additions, full kitchen and bathroom renovations, new flooring, interior and exterior paint, and exterior updates or siding work, including ADU projects such as garage conversions. A key theme is preserving original Eichler elements (post-and-beam architecture, open plan, indoor-outdoor feel) while delivering modern functionality.

Projects are typically led by a team including Joseph (project manager), Memo, and Uriel, with multiple reviewers noting strong communication, responsiveness, and involvement in design decisions, material selection, and vendor referrals. Customers highlight professional, clean, and organized crews, on-time or ahead-of-schedule delivery, and staying within budget in many cases; one project experienced a city-permit delay but GMJ kept the process moving and maintained contact with the homeowners. The firms’ work is described as thorough and detail-oriented, with attention to preserving mid-century aesthetics during modern upgrades, including HVAC and roofing coordination when needed.

Geographically, reviewers reference Sunnyvale, Palo Alto, San Mateo, San Jose, Saratoga, and broader Bay Area service. Overall, experiences are highly favorable, with several customers indicating they would hire GMJ again and would recommend them for similar remodels or ADU projects.