NYC Retaining Walls — Licensed Retaining Wall Contractor in New York City, NY
Five boroughs of hills. Held in stone.
NYC Retaining Walls is a licensed and insured retaining wall contractor for NYC's five boroughs. We measure your wall, find out why it's moving, and put a line-item price in writing before any work starts — repair, stabilization or a full rebuild.
Is one of these your wall?
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It's leaning or bulging
A lean that grows between two measurements a month apart is active movement. Anchors can often stop it without tearing the wall out.
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You got a DOB or Local Law 37 letter
An Unsafe rating must be corrected within 90 days of the report, and late filing now costs $1,000 a month (1 RCNY §103-09).
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Water is coming through the face
Wet stains, white mineral bloom or soil washing out at the toe mean the drainage behind the wall has failed — and the pressure on it has gone up.
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The old wall is done
Rotted railroad ties, crumbling block, a wall that's rotating at the base: some walls are past repair, and a rebuild is the cheaper answer over ten years.
Retaining wall services, built into the hill.
Repairs, rebuilds, new walls and Local Law 37 compliance, built to the same standard: a drained backfill zone, a proper footing, and reinforcement where height and load call for it.
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Retaining Wall Repair
Cracks, failed drainage, loose stone and block, cap and face repairs — fixed at the cause, not just patched. -
Retaining Wall Replacement
Demolition and rebuild of walls that are rotating, collapsing or past their service life — built to stamped plans. -
Retaining Wall Installation
New engineered walls with a proper footing, drainage zone and reinforcement — permits and plans coordinated. -
Retaining Wall Inspection
Local Law 37 compliance: we coordinate an independent QRWI, prepare the wall, and handle required repairs. -
Retaining Wall Violation Repair
SREM and Unsafe ratings, DOB violations and complaints — repairs scheduled against your deadline. -
Concrete Retaining Walls
Poured reinforced-concrete and CMU walls for tall grade changes, driveways and tight lots. -
Block Retaining Walls
Segmental block walls with geogrid reinforcement — terraces, yards and replacements for failed timber walls. -
Stone Retaining Walls
Natural stone and fieldstone walls built and restored — repointing, resetting and matching old stone. -
Retaining Wall Drainage Repair
Weep holes, perforated pipe and clean-stone drainage zones that take the water pressure off the wall.
Why owners call NYC Retaining Walls.
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Retaining walls are the focus
Site visits, estimates and repairs here are about one thing: walls that hold back soil — how they're drained, footed, reinforced and filed.
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Numbers on the first visit
Measured height, length and lean, a crack map and a DOB records check — not a guess from the curb.
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A written, line-item price
Repair, stabilize or rebuild, priced side by side, with engineering and permit steps spelled out.
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Licensed and insured
Licensed and insured for home improvement work in New York City, and we build to stamped plans when the code calls for them.
How a retaining wall job runs, start to finish.
- 01
Call or send photos
A live person answers. Tell us where the wall is and what changed.
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Free site visit
Height, length, lean, cracks, drainage and DOB records — measured and photographed.
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Written scope and price
Line items for repair, stabilization or rebuild, plus any engineer or permit steps.
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Build and closeout
Clean site, before-and-after photos, and paperwork for your insurer or inspector.
Tell us what your wall is doing.
A live person answers. We'll ask five questions and book a free site visit.
Published pricing
What retaining walls cost in NYC.
Published cost-guide figures, adjusted by the RSMeans New York City cost index (129.1). Your written price comes from a site visit; these ranges tell you whether you're in the right ballpark.
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Retaining wall repair
Anchoring a leaning section: ~$75–$105 / linear ft · Rebuilding a failed section: ~$90–$160 / linear ft
$325 – $1,600
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New segmental block wall
Geogrid and drainage zone included · Engineering extra on walls 4 ft+
$20 – $45
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Poured concrete wall
Reinforced, on a formed footing · Best for tall walls and driveways
$26 – $65
What moves the price: exposed height (and whether it crosses 4 ft, which brings an engineer and a DOB permit), access (a rear-yard wall reached by hand through a rowhouse costs more than a wall at the curb), demolition and disposal of the old wall, the drainage work behind it, and permit and filing fees.
Free site visit
Get a written price on your wall.
Two quick steps. We call back within one business hour during business hours, and the site visit is free whether or not you hire us.
- What you get
- Measured height, length and lean, a crack map, a DOB records check, and a line-item price.
- What it costs
- Nothing.
- What we'll ask
- Where the wall is, roughly how tall, and what changed.
Request a free site visit
Thanks, we have your request.
Callback within 1 business hour. If it's urgent, call (718) 555-0100.
DIY, cheap operator, or built properly.
| Factor | DIY | Cheap operator | Built properly |
|---|---|---|---|
| Drainage behind the wall | Native soil backfill | A little gravel, no pipe | 12 in+ of clean crushed stone, filter fabric, perforated pipe that daylights |
| Footing | Set on topsoil or sod | Shallow, uncompacted | Compacted base, sized and set below the frost line to the design |
| Reinforcement | None | None | Geogrid or rebar to an engineer's design where height and load call for it |
| Permit and engineer (walls 4 ft+ or surcharged) | Skipped | Skipped or "not needed" | Stamped plans and a DOB filing |
| Local Law 37 (10 ft+ on a right-of-way) | Unknown | Ignored | Built and documented so the QRWI report goes smoothly |
| Paperwork you keep | None | A handwritten estimate | Written contract, line-item scope, closeout photos |
| Where it usually fails | First freeze-thaw seasons | Within a few years, at the drainage | Designed to carry its load for decades |
Retaining wall service areas, borough by borough.
We cover all five boroughs, with deeper local pages where the permit and violation data show the most retaining-wall work.
All service areas-
Staten Island
Hillside, driveway and timber-replacement walls, and the 2026 Local Law 37 window.
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The Bronx
Rock-ridge walls, co-op and apartment walls, and the most LL37 enforcement in the city.
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Queens
Moraine hills on the north shore, rising groundwater in the southeast, and the 2027 window.
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Brooklyn
Rowhouse rear-yard walls, subway-cut walls, and the ridge from Green-Wood to Bay Ridge.
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Manhattan
Tall walls on the schist of upper Manhattan — the walls Local Law 37 was written for.
Retaining wall questions NYC owners ask first.
How much does a retaining wall cost in NYC?
Most new residential retaining walls in NYC fall between about $20 and $65 per square foot of wall face, depending on material: segmental block at the low end, poured concrete in the middle, natural stone higher. A 40-foot wall 3 feet high in block is about 120 square feet, so roughly $2,400 to $5,400 before engineering, demolition or difficult access.
Do I need a permit to build a retaining wall in NYC?
You need a DOB permit if the wall is 4 feet or taller, measured from the top of the footing, or if it supports a surcharge such as a driveway, a building or sloped ground above it. Those walls need plans filed by a licensed engineer or architect. Lower walls with nothing loading them don't need a permit (1 RCNY §101-14).
What is Local Law 37 and does it apply to my wall?
Local Law 37 of 2008 requires any retaining wall 10 feet or taller at any point that fronts a public right-of-way — a sidewalk, street, alley or public stair — to be inspected every five years by a Qualified Retaining Wall Inspector, a New York–licensed engineer. Staten Island's report is due by December 31, 2026, Queens' in 2027 and Brooklyn's in 2028.
Who is responsible for a retaining wall between two properties?
In New York City, a wall on the common lot line is the joint responsibility of both owners, split half and half (NYC Admin Code §28-305.1.1). A wall entirely on one lot belongs to that owner, and an owner who changes the grade has to build and maintain the wall on their own property at their own cost.
Can a leaning retaining wall be fixed without replacing it?
Often, yes. If the wall body is sound and the lean comes from soil and water pressure, helical anchors or tiebacks drilled through the wall into stable ground can hold it in place for a fraction of a rebuild's cost. If the wall is rotating at the footing or breaking apart, a rebuild is the honest answer.
Does homeowners insurance cover a retaining wall collapse?
Usually not when the cause is soil movement, water pressure or age — standard policies exclude those. A sudden event, like a car or a falling tree hitting the wall, may be covered under Other Structures, typically 10% of the dwelling limit on a standard HO-3 policy. Check your policy's exclusions and ask your agent before work starts.
Start with the wall.
Free site visit, written line-item price, all five boroughs.