Cosmetic masonry repair vs structural masonry repair
Repointing renews mortar. Structural masonry repair addresses the wall itself: brick that is bowing or bulging outward, lintels that have cracked or rusted through, wall ties that have corroded away, parapets that have shifted off the wythe below, and shelf angles that have stopped carrying the load they were installed to carry. These failures show up as step cracks, outward displacement you can sight along the wall, and FISP findings that land in the Unsafe column. They are not masonry work a repointing crew can fix with a tuck pointer.
The cause is almost always water plus steel. Rust expands to several times the volume of the original metal, pushes the masonry outward, and the brick above loses its bearing. Rebuilding the face without replacing the steel or re-tying the outer wythe guarantees a repeat in a few winters, usually with a bigger scope. Structural brick repair NYC buildings actually need starts at the lintel, the tie or the angle, not at the brick you can see.
We treat this as exterior masonry repair with an engineering component. We coordinate with your engineer, install shoring where the wall is carrying load through a failed element, rebuild with brick and mortar matched to the original, and document every stage so the DOB and your QEWI can sign off without a second mobilization.
Lintels, Parapets & Ties: structural masonry repair we perform
Bowing & Bulging Walls
An outer wythe that has separated from the backup wall needs to be re-tied or taken down and rebuilt, depending on how far it has moved. We survey the displacement, install helical ties or rebuild the section with new ties, and reinstate through-wall flashing so the water that caused the separation has somewhere to go.
Lintels & Shelf Angles
Rusted steel lintels and shelf angles are the single most common structural masonry repair in NYC. We shore the opening, remove the brick above the steel, replace the lintel or angle with properly primed and flashed steel, and relay the masonry in matched brick and mortar.
Parapets & Coping
Parapets take weather from both sides and are usually the first wall section to fail structurally. We rebuild displaced parapets from the roof line up, reset or replace coping stones, and install through-wall flashing and a proper cap so the rebuilt wall stays dry.
Cracks & Displacement
Step cracks following the mortar joints, vertical cracks through brick, and cracks that open and close with the seasons each point to a different cause. We diagnose settlement, thermal movement and corrosion separately and specify the repair the crack actually calls for, from stitching to partial rebuild.
LL11 Unsafe Findings Fixed
When a FISP report classifies a masonry condition as Unsafe, the building needs public protection immediately and a documented repair within the DOB's timeline. We erect the shed, perform the structural masonry repair the QEWI identified, and hand back the photographs and sign-offs that let the engineer reclassify the condition and bring the shed down.
Recent NYC projects
Free Structural Assessment, then Engineer-Coordinated Repairs
Every structural masonry repair starts with a free structural assessment. We photograph the elevation, sound the wall, measure displacement and open a small probe where the cause is hidden behind the face brick. If your FISP report already identifies the condition, we work from that document and confirm each item on site.
When the wall is carrying load through a failed element, your engineer sets the repair design and we build to it. We coordinate the shoring plan, the sequence of removal and rebuild, and any temporary protection, then file the DOB permits under our own license before the shed goes up.
The written scope for the board or owner lists each condition, the repair method, and what is required versus recommended. Our in-house masons perform the rebuild, DOB-compliant, with matched brick, matched mortar and new steel where steel failed. At completion you receive a close-out package with photographs, materials and permit sign-offs, including the Local Law 11 documentation your QEWI needs to clear the finding.
What NYC building owners say
Bowing wall or unsafe finding?
Free structural masonry assessment, Manhattan to the Bronx.
Frequently Asked Questions
Rebuilt right, not patched.
Structural masonry repair that restores bearing, not just appearance. One masonry contractor NYC boards and engineers can hand a finding to and get a sign-off back.
Related: Masonry Contractor in NYC