Esquives provides foundation and concrete services for Bay Area homes — new foundations, seismic retrofits, retaining walls, driveways, and concrete flatwork.
Hairline cracks in concrete are common and often just cosmetic, especially if they’re narrow and not changing over time. Wider cracks, stepped cracks in block or brick, doors that stick, or floors that slope can indicate movement that’s more serious. We usually recommend an on-site evaluation to see the pattern of cracks and check for signs of settlement or moisture before advising on repair options.
A slab foundation is a solid concrete pad that the house sits on, with plumbing and electrical typically run through or under the slab. A raised or crawl-space foundation uses perimeter and interior footings with a space underneath, making access to plumbing and some wiring easier. Each type behaves differently with soil movement and moisture, so repair and waterproofing strategies vary by foundation type.
Concrete reaches most of its strength in the first 7 days but continues curing for 28 days and beyond. For typical residential foundations, we usually wait at least several days (per engineer specs) before starting framing, and around a week or more before allowing vehicle loads on driveways or thicker slabs. Exact timing depends on mix design, weather, and load requirements, and we follow the engineer’s recommendations.
Structural foundation repairs, new foundations, and many larger concrete projects usually require permits and, in some cases, structural engineering. Simple non-structural flatwork like small patios may be exempt in some jurisdictions, but that varies by city. We’ll review your project, confirm local requirements in places like San Jose and Morgan Hill, and pull permits when they’re needed.
Many parts of the Bay Area have expansive clay soils or fill that can swell when wet and shrink when dry, stressing foundations and causing movement over time. That’s why geotechnical reports are often required for new construction and why proper drainage and grading are so important. For repairs, we look at both the visible damage and underlying soil conditions to recommend solutions that address the cause, not just the crack.
We can regrade soil to slope away from the house, add or repair gutters and downspouts with proper extensions, and install French drains or perimeter drains where needed. In some cases, we apply waterproofing membranes or coatings to foundation walls, especially for below-grade spaces. The goal is to keep water away from the foundation and prevent long-term moisture damage or movement.
If a slab has minor surface cracking, settled slightly in one area, or has isolated damage, repair methods like patching, grinding, or localized replacement might be sufficient. If the slab is badly cracked, heaving, or has widespread settlement due to poor base or drainage, full replacement is often more reliable. We’ll assess the condition and give you the pros and cons of repair versus replacement based on long-term performance.
Yes, we can install new footings, piers, or grade beams to reinforce or support areas that are settling or being modified, such as for a room addition or new opening. This typically involves engineered drawings, excavation, forming, rebar, and tying into the existing structure per code. It’s common in older California homes when we open up floor plans or address localized foundation issues.
We use proper subgrade preparation and compaction, appropriate reinforcement (rebar or mesh) where specified, and control joints to help cracks form in planned locations. We also pay attention to mix design, placement techniques, and curing methods suited to local temperatures and sun exposure. While some hairline cracking is normal, good practices significantly reduce unsightly or structural cracking.
You should call if you see new cracks appearing or existing ones growing, doors or windows suddenly sticking, noticeable floor slopes, or persistent moisture near the foundation. It’s also smart to have an evaluation before major remodels or additions, especially in older Bay Area homes with unknown foundation conditions. Early assessment lets us address issues before they become more complex and expensive.
Esquives General Contractors · Morgan Hill, CA · (408) 809-1212 · sales@esquivescontractors.com · Mon–Fri 6:00am–5:00pm, Sat 6:00am–2:00pm · CSLB License #1056641 · Licensed, bonded & insured.