Cracked walls, bowing foundations, water intrusion, brownstone basement lowering. Engineered repairs — carbon straps, wall anchors, piers, mass-pour underpinning — filed, inspected, and self-performed by JBS crews.
JBS repairs residential foundations across NYC using engineered methods matched to the failure: carbon-fiber straps for cracked walls, steel wall anchors for bowing walls, concrete piers for settlement, and mass-pour or pile underpinning for basement lowering and major stabilization. All structural work is engineer-designed, DOB-permitted, and inspected.
Epoxied carbon-fiber straps lock cracked or slightly bowed walls against further movement. Minimal disruption, typically done in 1–2 days.
Steel anchors or interior bracing for walls bowing beyond what straps can hold — restores and retains the wall line.
Piers installed beneath settling footings transfer the load to competent soil and stop differential settlement.
Mass concrete or pile underpinning in engineered sequence — the standard for brownstone cellar dig-downs and adjacent-excavation protection. DOB filed and inspected.
Exterior membranes, interior French drains, sump systems. We stop water at the source, not just where it shows.
Temporary structural support during repairs, renovations, and adjacent construction — designed and installed to code.
Hairline shrinkage cracks are common and usually cosmetic. Horizontal cracks, stair-step cracks in block walls, walls bowing inward, doors and windows going out of square, or water entering at the wall-floor joint are structural warning signs that deserve an inspection. We assess for free and tell you honestly which category you are in.
Underpinning extends a foundation deeper — by pouring mass concrete or installing piles beneath the existing footing — either to stabilize a settling structure or to lower a basement for more headroom. In NYC it is engineered, DOB-filed, inspected work. It is the standard method for brownstone basement lowering in Brooklyn.
Yes. Structural repairs like underpinning, piers, and wall anchors are designed by a licensed engineer, filed with the DOB, and inspected. JBS coordinates the engineer, files the permits, and self-performs the concrete work.
Yes. Depending on the source we install exterior membrane waterproofing, interior French drains to a sump pump, or both. During foundation repairs we waterproof the repaired sections as standard practice so you are not opening the wall twice.
Carbon-strap crack reinforcement is typically 1–2 days. Wall anchors and piers run several days to a week. Full underpinning and basement lowering is a multi-week engineered project. Every quote includes a written schedule.
Free estimates within 48 hours for concrete and contracting. Same-day dumpster delivery when you call before noon, Monday–Saturday.
