Cahill Contractors

Cahill Contractors has been building in San Francisco since 1911, which makes it one of the oldest continuously operating general contractors in the city. The firm focuses on affordable and market-rate housing, institutional work and commercial projects around the Bay Area, and self-performs wood framing and carpentry — an unusual capability for a GC of its size and a large part of why it wins tight urban infill jobs. Services span preconstruction, construction management, design-build and design-assist, and VDC/BIM. Cahill is the general contractor on 2125 Telegraph Avenue in Oakland, a 97-unit Mercy Housing California development that topped out in July 2026 less than six months after groundbreaking on a 0.2-acre site. Other affordable housing work includes Tahanan at 833 Bryant Street, Shirley Chisholm Village and Maceo May Apartments. California license 1011738.

Cahill Contractors has been building in San Francisco since 1911, which makes it one of the oldest continuously operating general contractors in the city. Both family-owned and woman-owned, the firm works across the Bay Area, including San Francisco, San Jose, Oakland and San Leandro, with a staff numbering in the hundreds. More than a century of continuous work in one demanding market is a rare foundation, and it shows in the depth of local experience the company brings to a project.
Self-perform carpentry and integrated delivery
One detail sets Cahill apart from contractors that subcontract nearly everything: it self-performs wood framing and carpentry. Keeping that trade in-house gives the company direct control over a critical part of the schedule and quality on the multi-family and wood-framed projects it favors, rather than depending entirely on outside crews whose availability it cannot control. On a tight urban site, that control can be the difference between a schedule that holds and one that slips.
Its broader services span preconstruction, general contracting and construction management, and design-build and design-assist for owners who want the builder involved during the design phase. Sustainable and green building and VDC/BIM round out the list, reflecting a practice that treats digital modeling and environmental design as standard parts of how it delivers work rather than optional extras bolted on at the end.
The project mix leans toward multi-family residential, education, community, healthcare and commercial construction across the region. That focus, combined with more than a century of local building and a self-perform carpentry capability, gives Cahill a distinct footing in a Bay Area market where deep local experience is genuinely hard to replicate. The company operates as a family and woman-owned business. Between a self-perform trade, an integrated delivery model and generations of local building, Cahill offers a Bay Area owner a depth of in-house capability that few contractors its age or size can match.