# Retaining Wall Contractor Bronx NY | NYC Retaining Walls

> Bronx retaining wall contractor for stone walls on gneiss ridges, apartment and co-op walls, and Local Law 37 violation repairs. Free site visit.

URL: https://nycretainingwalls.com/service-areas/bronx/

![Tall mortared rubble-stone retaining wall below a row of prewar brick apartment buildings on a Bronx gneiss ridge](https://nycretainingwalls.com/images/mortared-rubble-stone-retaining-wall-below-prewar-apartments-bronx-gneiss-ridge-1440.webp)

1.  [Home](https://nycretainingwalls.com/)
2.  [Service Areas](https://nycretainingwalls.com/service-areas/)
3.  The Bronx

# Bronx Retaining Wall Contractor for Rock-Cut, Apartment and Hillside Walls

Gneiss ridges, prewar walls built against blasted rock, and more Local Law 37 enforcement than any other borough in the city.

[Book a free The Bronx site visit](https://nycretainingwalls.com/contact/) [Call (718) 555-0100](tel:+17185550100)

Rubble-stone wall below prewar apartments  
Gneiss ridge · The Bronx

[NYC Retaining Walls](https://nycretainingwalls.com/) is a licensed and insured retaining wall contractor working across the Bronx, from Riverdale and Kingsbridge down the Grand Concourse ridge to Highbridge and Mount Hope, and east to Wakefield, Eastchester and Throgs Neck. A retaining wall contractor in the Bronx works on the most heavily cited wall stock in New York: since 2015 the borough has logged 848 properties with an inspector-confirmed retaining wall problem and 617 tax lots cited for not filing a Local Law 37 report, both the highest of any borough, and Bronx ZIP 10456 ranks #3 citywide for combined wall activity (NYC Open Data: DOB job filings, complaints, DOB and ECB violations, 2015–2026).

Local Law 37 window

2024 (closed); next window 2029

Terrain

Fordham gneiss ridges above marble valleys

Most common jobs

Apartment and co-op wall repair, violation and Unsafe work

Site visit

Within 3 business days

## Common retaining wall problems _in the Bronx._

-   ### There's a violation on the wall
    
    The Bronx has 1,206 ECB violations for retaining wall conditions since 2015, the most in the city (NYC Open Data). An Unsafe rating has to be corrected within 90 days of the report.
    
-   ### The 2024 LL37 report never got filed
    
    The Bronx Cycle 3 window closed December 31, 2024. Under the current rule, failure to file is $5,000 a year and late filing adds $1,000 a month (1 RCNY §103-09, amended March 2025).
    
-   ### Old stone against rock is letting go
    
    Many Bronx walls are mortared rubble laid against blasted gneiss. Open joints, missing stones, white efflorescence and water seeping from the face are the early warnings.
    
-   ### One wall, several buildings
    
    Apartment rows on the ridges often share one long wall. On a common lot line each owner carries half the cost (Admin Code §28-305.1.1), and each owner pays its own $355 DOB filing fee.
    

## Retaining wall services _in the Bronx._

-    [![Bulging stone retaining wall temporarily shored with timber bracing behind safety fencing on a Bronx sidewalk](https://nycretainingwalls.com/images/stone-retaining-wall-shored-with-timber-bracing-bronx-sidewalk-800.webp) 01 · Urgent
    
    ### Retaining Wall Violation Repair
    
    SREM and Unsafe ratings, DOB violations and complaints — repairs scheduled against your deadline.](https://nycretainingwalls.com/retaining-wall-violation-repair/)
-    [![Very tall weathered concrete retaining wall with water staining beside a public stairway in upper Manhattan](https://nycretainingwalls.com/images/tall-concrete-retaining-wall-along-public-stair-upper-manhattan-800.webp) 02 · Staten Island due 12/31/2026
    
    ### Retaining Wall Inspection
    
    Local Law 37 compliance: we coordinate an independent QRWI, prepare the wall, and handle required repairs.](https://nycretainingwalls.com/retaining-wall-inspection/)
-    [![Contractor's gloved hand holding a crack-width gauge against a diagonal crack in a poured-concrete retaining wall above a weep hole](https://nycretainingwalls.com/images/crack-width-card-on-stepped-crack-in-concrete-retaining-wall-800.webp) 03 · Most requested
    
    ### Retaining Wall Repair
    
    Cracks, failed drainage, loose stone and block, cap and face repairs — fixed at the cause, not just patched.](https://nycretainingwalls.com/retaining-wall-repair/)
-    [![Gloved hands setting a gray stone into a dry-laid natural stone retaining wall](https://nycretainingwalls.com/images/hands-placing-stone-in-dry-laid-retaining-wall-riverdale-800.webp) 04
    
    ### Stone Retaining Walls
    
    Natural stone and fieldstone walls built and restored — repointing, resetting and matching old stone.](https://nycretainingwalls.com/stone-retaining-walls/)
-    [![Steel anchor bearing plates installed in a row across the face of a leaning concrete retaining wall](https://nycretainingwalls.com/images/helical-anchor-plates-on-leaning-concrete-retaining-wall-800.webp) 05
    
    ### Leaning Retaining Wall Repair
    
    Helical anchors and tiebacks that stop a leaning or bulging wall without tearing it out.](https://nycretainingwalls.com/leaning-retaining-wall-repair/)
-    [![Old stone retaining wall running along the property line between two neighboring backyards at different levels](https://nycretainingwalls.com/images/shared-retaining-wall-on-property-line-between-two-yards-800.webp) 06
    
    ### Shared Retaining Wall Repair
    
    Lot-line walls between neighbors — one scope, one price, split the way NYC law and your agreement say.](https://nycretainingwalls.com/shared-retaining-walls/)

## How a Bronx wall job _runs, start to finish._

1.  01
    
    ### Call or send photos
    
    Tell us the street and what the wall is doing. The Bronx visits are scheduled in blocks to keep travel off your bill.
    
2.  02
    
    ### Free site visit
    
    Measured height, length and lean, a crack map, a drainage check and a DOB records lookup for the lot.
    
3.  03
    
    ### Written scope and price
    
    Repair, stabilize or rebuild, with engineering, permit and any zoning-district review spelled out.
    
4.  04
    
    ### Build and closeout
    
    Clean site, before-and-after photos, and the paperwork your inspector or insurer will ask for.
    

## Bronx ground, Bronx walls, _Bronx enforcement._

The western Bronx is built on rock. Ridges of **Fordham gneiss** carry Riverdale above the Hudson and the Grand Concourse along its spine, while the softer **Inwood marble** has worn down into lowlands such as Marble Hill. When the streets and apartment blocks went up, builders cut into those ridges and laid walls of coursed rubble, brick or concrete against the cut faces, often with a full story or more of grade change behind them. The city's aerial planimetric map records 1,274 retaining wall features in the Bronx, second only to Queens (NYC Open Data). On a rock-backed wall the failure is usually water, not soil: groundwater travels along joints in the gneiss, hits the back of the wall, and leaves through cracks and open mortar joints if the weep holes are blocked. So before we price a repair we find where the water comes out, check whether the wall bears on rock or on fill, and decide between repointing, rebuilding a section, or tieback anchors drilled into sound rock.

Enforcement is the other Bronx story. The borough had **640 Cycle 1 failure-to-file violations**, more than any other (DOB violation code RWNRF), and six of the twelve busiest retaining wall ZIP codes in the city are in the [West Bronx](https://nycretainingwalls.com/service-areas/west-bronx/): 10456, 10457, 10468, 10458, 10453 and 10452. These are mostly apartment and institutional walls; in 10452 (Highbridge and the Concourse) only 8% of permitted wall jobs were on one- to three-family homes. The cost of letting an order sit is documented. On **January 10, 2024**, a 150-foot section of wall on Anthony Avenue in Tremont–Mount Hope collapsed through an auto shop; full vacate orders went to 1756, 1758 and 1760 Anthony Avenue, a partial vacate had been in place since November 23, 2020, and DOB said the owners never filed repair applications (Bronx Times). An Unsafe condition has to be made safe, permitted and repaired, with an amended report filed after the work.

Two other parts of the borough need different handling. [Riverdale](https://nycretainingwalls.com/service-areas/riverdale/) falls largely inside **Special Natural Area District NA-2**, where site alteration on qualifying lots needs City Planning review before DOB will issue a permit, so we check the zoning map before we price new walls or regrading there. The [Northeast Bronx](https://nycretainingwalls.com/service-areas/northeast-bronx/), from Wakefield to Baychester, is homeowner country: in 10469, 71% of permitted wall jobs were on one- to three-family homes, and LL37 citations are few, a sign that most walls there sit below the 10-foot line. Those are driveway walls, side-yard walls and walls shared with the neighbor. The rule that matters there is the permit line: a wall **4 feet or taller from the top of the footing**, or one carrying a driveway or sloped backfill, needs a DOB permit with plans by a PE or RA (1 RCNY §101-14).

 [![Map of New York City with The Bronx highlighted; the square marks the NYC Retaining Walls office in Brooklyn](https://nycretainingwalls.com/maps/bronx.svg)](https://www.google.com/maps/search/?api=1&query=The%20Bronx%2C%20New%20York%2C%20NY)[Open The Bronx in Google Maps ↗](https://www.google.com/maps/search/?api=1&query=The%20Bronx%2C%20New%20York%2C%20NY)

Coverage: all of The Bronx, plus the rest of New York City.

### The Bronx owner guides

-   [Code Guide What Are the Local Law 37 Retaining Wall Requirements?](https://nycretainingwalls.com/guide/local-law-37-retaining-wall-requirements/)
-   [Code Guide How Do I Clear a Retaining Wall Failure to File Violation?](https://nycretainingwalls.com/guide/retaining-wall-failure-to-file-violation/)
-   [Code Guide What Does an SREM Retaining Wall Rating Mean?](https://nycretainingwalls.com/guide/srem-retaining-wall-rating/)
-   [Cost Guide How Much Does Retaining Wall Repair Cost in NYC?](https://nycretainingwalls.com/guide/retaining-wall-repair-cost-nyc/)
-   [Learn Retaining Wall Collapsed: What to Do in the First 24 Hours](https://nycretainingwalls.com/guide/retaining-wall-collapse-what-to-do/)

## Why The Bronx owners call _NYC Retaining Walls._

-   01
    
    ### 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.
    
-   02
    
    ### Numbers on the first visit
    
    Measured height, length and lean, a crack map and a DOB records check — not a guess from the curb.
    
-   03
    
    ### A written, line-item price
    
    Repair, stabilize or rebuild, priced side by side, with engineering and permit steps spelled out.
    
-   04
    
    ### 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 we reach you _in the Bronx._

From 27 Knickerbocker Ave in Brooklyn we take the BQE (I-278) north through Queens and cross the Robert F. Kennedy Bridge. The Major Deegan runs up the west side to Highbridge, Kingsbridge and Riverdale; the Bruckner and the Hutchinson River Parkway reach Throgs Neck, Eastchester and Baychester; the Cross Bronx ties the two together. We group Bronx visits on the same days so each one lands inside our standard window: a site visit within 3 business days of your call.

### The Bronx neighborhoods we cover

-   Riverdale
-   Spuyten Duyvil
-   Fieldston
-   Kingsbridge
-   Kingsbridge Heights
-   University Heights
-   Morris Heights
-   Highbridge
-   Mount Hope
-   Fordham
-   Wakefield
-   Throgs Neck

### Near landmarks like

-   Wave Hill
-   Van Cortlandt Park
-   Yankee Stadium
-   The High Bridge
-   The Grand Concourse
-   New York Botanical Garden

### Routes we use

-   Robert F. Kennedy Bridge (I-278)
-   Major Deegan Expressway (I-87)
-   Cross Bronx Expressway (I-95)
-   Bruckner Expressway (I-278)
-   Henry Hudson Parkway
-   Bronx River Parkway

Transit: the 1, 2, 4, 5, 6, B and D trains, and Metro-North's Hudson and Harlem lines.

## The Bronx retaining wall _questions._

**### My Bronx retaining wall missed the 2024 Local Law 37 window. What happens now?**

The report is now late, and penalties keep running until it is filed. Under 1 RCNY §103-09 as amended March 2025, failure to file carries $5,000 a year and late filing an added $1,000 a month. The fix is the same as on time: hire a Qualified Retaining Wall Inspector, a New York–licensed engineer, file within 60 days of the inspection, and pay the $355 fee. We can connect you with an independent QRWI and repair to the report.

**### How much does retaining wall work cost in the Bronx?**

No published price is specific to the Bronx. Angi's New York City figure is $35 to $90 per linear foot, wall type unspecified. Our NYC working bands, national cost guides times the RSMeans NYC index of 129.1, rounded, are about $325 to $1,600 for a minor repair, $75 to $105 per linear foot for anchoring, $90 to $160 per linear foot to rebuild, and $450 to $970 for engineering. Rock, access and violation deadlines move Bronx prices most.

**### Do I need a DOB permit to rebuild a retaining wall in the Bronx?**

Yes, 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 backfill (1 RCNY §101-14). Those walls need plans by a PE or RA and a DOB permit. In Riverdale's Natural Area District, City Planning review can come first. We coordinate the filing and build to the stamped plans.

**### Who pays for a retaining wall shared by two Bronx apartment buildings?**

If the wall sits on the common lot line, both owners are jointly responsible and split the cost half each (Admin Code §28-305.1.1). If it sits entirely on one lot, that owner is responsible, and the neighbor must allow access for repairs. For an LL37 wall, each owner files and pays its own $355 fee, even when one report covers the whole wall. A licensed survey settles where the line runs.

**### A Bronx retaining wall is bulging over the sidewalk. What should I do?**

Keep people away from the base and call 311 now. A wall that is bulging, shedding stone or cracking over a public sidewalk can be Unsafe, and owners and inspectors must report Unsafe walls to DOB through 311. Then call us. We prioritize active movement, can arrange temporary protection, and schedule the engineer and permit for a lasting repair so the Unsafe condition is corrected within 90 days.

### Book a free The Bronx site visit

Callback within 1 business hour · [(718) 555-0100](tel:+17185550100)

Thanks, we have your request.

Callback within 1 business hour. If it's urgent, call [(718) 555-0100](tel:+17185550100).

## Nearby _service areas._

[All service areas](https://nycretainingwalls.com/service-areas/)

-   ![Sidewalk protection along a bulging stone retaining wall below a West Bronx apartment building](https://nycretainingwalls.com/images/sidewalk-shed-at-bulging-retaining-wall-west-bronx-apartment-building-800.webp)
    
    ### [West Bronx](https://nycretainingwalls.com/service-areas/west-bronx/)
    
    Apartment and institutional walls on the Concourse ridge: the city's heaviest enforcement.
    
-   ![Tall concrete and stone retaining wall below a mid-century co-op building on the Hudson slope in Riverdale](https://nycretainingwalls.com/images/tall-retaining-wall-below-co-op-hudson-slope-riverdale-800.webp)
    
    ### [Riverdale](https://nycretainingwalls.com/service-areas/riverdale/)
    
    Gneiss-ridge stone walls, Hudson-slope co-op walls, and Natural Area District NA-2 lots.
    
-   ![Leaning concrete block retaining wall on the lot line between two houses in the Northeast Bronx](https://nycretainingwalls.com/images/leaning-block-retaining-wall-on-lot-line-between-bronx-houses-800.webp)
    
    ### [Northeast Bronx](https://nycretainingwalls.com/service-areas/northeast-bronx/)
    
    Homeowner driveway, side-yard and lot-line walls from Wakefield to Baychester.
    

Sources

1.  [NYC DOB — 1 RCNY §103-09 (Retaining wall inspection rule, Mar 2025)](https://www.nyc.gov/assets/buildings/rules/1_RCNY_103-09.pdf)
2.  [NYC Open Data — DOB Job Filings, Complaints, DOB and ECB Violations](https://data.cityofnewyork.us/)
3.  [Bronx Times — Vacate orders after Tremont retaining wall collapse (Jan 2024)](https://www.bxtimes.com/vacate-order-retaining-wall-collapse-tremont/)
4.  [NYC Planning — Special Natural Area District](https://www.nyc.gov/assets/planning/download/pdf/plans/special-natural-area-district/snad.pdf)
5.  [Angi — Retaining wall cost, New York, NY](https://www.angi.com/articles/how-much-does-it-cost-install-wall/ny/new-york)

Retaining wall work _in the Bronx?_

We call you back within 1 business hour during business hours (Mon–Sat, 7am–7pm) and schedule a free site visit within 3 business days.

[Book a free site visit](https://nycretainingwalls.com/contact/) [Call (718) 555-0100](tel:+17185550100)

Callback within 1 business hour · Mon–Sat, 7am–7pm