Foundation installation in Hayward CA - concrete poured to your engineer's plans

Most people who call us have a lot, a set of drawings in progress and a question about which foundation to pick. The price moves with the type you choose, the size of the house, how deep the footings go and how much steel the engineer calls for, and the soils report drives a lot of that. The schedule turns mostly on paperwork, because the engineering and the city's plan review come before any concrete. I'll give you your own number in the estimate once I've seen the site, and if you already know you want a slab, our slab foundation building page goes deeper on that one.

I build from the engineer's plans and the soils report, so I ask for both early and stay in touch with whoever drew them while we work. If you're still deciding between a slab and a raised foundation, we'll talk through what each means for your budget and for repairs down the road. Our crew lays the house out from the plans, digs the footings, sets the forms and ties the rebar, the steel inside that holds the concrete together when the ground pushes or the house pulls. Before any concrete goes in, we dig out and pack the subgrade, the ground the foundation sits on, because loose dirt left underneath settles later. We pour in the cooler part of the day, since concrete that dries too fast on top ends up weak and dusty, then finish it and let it cure, the waiting stretch where it keeps gaining strength before anyone builds on it. If the budget gets tight, I'd rather spend on the base than the finish, because the finish is what you see on day one and the base decides whether you ever call me about settling.

A raised foundation stands on concrete footings, and we pour those on their own too, for additions, porches and garden walls. Small business owners putting up a new building often have us come back for concrete parking lot building once the walls are up, so one crew handles the grading and drainage across the whole site.

Hayward sits close to the Hayward fault, and the city points to geological studies that suggest a major earthquake is possible here. If your lot falls inside the city's mapped fault study area, the city's checklist calls for a geological investigation, checked by a second reviewer, on top of the usual engineering. That's the engineers' work, not ours, but it can change where the house sits and how the foundation is built, so I ask about it at the first visit and we pour exactly what the approved plans show. You can read the city's new home construction steps before you apply.

A lot of what we build here is infill, a new house on a narrow lot between older homes, where getting concrete to the back of the lot and keeping water off the neighbor's yard take as much planning as the pour. We grade around the foundation so water runs away from the house, and we see the same tight lots on jobs in Castro Valley and San Leandro.