NYC Steel Fabrication - Cellar Doors, Steel Staircases & Garbage Bin Enclosures
Steel Masters NYC is Brooklyn's most trusted commercial steel fabrication and installation company - insured since 1972 with over 50 years serving New York City. We custom fabricate and install sidewalk cellar doors, hydraulic Ez Lift cellar door systems, commercial steel staircases, and rodent-proof steel garbage bin enclosures for commercial and residential properties throughout all five boroughs, Long Island, and Westchester. Every product is fabricated in our Brooklyn shop and installed by our own crew - no shipping, no shortcuts.

Sidewalk Cellar Doors, Gates & Hatches

Bulkhead Waterproof Basement Doors

Steel and Metal Staircases

Structural Steel Building Alterations

Custom Steel Fabrications and Iron Works

Metal Trash Bins

Expanded Metal Mesh & Security

Fixed Roof Access Ladders

Roof Dunnage

Catwalks & Mezzanines

Outdoor Steel Decks

Welded Steel Bar Fencing and Roof Railings

Coiling Doors and Rolldown Gates
What We Fabricate
Everything we sell is built in our own Brooklyn shop and installed by our own crew. Nothing is drop-shipped from a catalog, so a door, stair or enclosure is cut to the opening we measured in the field rather than to a stock size. Our work falls into four families.
Stairs, Railings & Fencing
We fabricate steel and iron staircases for both sides of the building envelope. Inside, that means closed-tread diamond plate and stair-pan staircases with landings and pipe railings for basements, mechanical rooms and mezzanines. Outside, it means outdoor steel staircases with galvanized grating treads, switchback and egress runs, and double-landing stairs built for weather. Railings are part of the same trade: we build pipe and staircase railings, parapet roof railings for roof edges and setbacks, and commercial bar and 8-foot steel fencing and gates for yards, lots and property lines.
Doors, Hatches & Cellar Access
Sidewalk cellar and basement access doors are the line we are best known for in New York City - flat and flush diamond plate doors, vented panels, oversized single-leaf doors over stair openings, and vault door gates. Where a cellar floods or sits below grade, we build waterproof bulkhead cellar doors and Ultra Model raised waterproof doors with welded curbs and gasketed leaves that lift the opening above the sidewalk. When a heavy door has to open one-handed all day at a restaurant or storefront, the hydraulic Ez Lift cellar door system does it in a single motion and locks tamper-resistant. We also fabricate utility and valve-room doors, roof hatches, and expanded-metal safety screens that sit under a hatch so the opening is never left unguarded.
Expanded Metal & Streetscape Mesh
We fabricate expanded metal and welded steel mesh for security cages, partitions, window guards, vent covers, and safety screens that protect basement openings, mechanical rooms, and HVAC equipment. The same open metal fabric is used for tree pit guards and streetscape frames where strength and visibility matter. Expanded metal is a natural complement to cellar doors and window guards: it is stronger than wire mesh, allows airflow, and gives a clear view through the panel while keeping the space secure.
Structural Steel & Alterations
Heavy structural work runs through our structural steel fabrication line - columns, beams, lintels, and mezzanines - along with modifications and repairs to steel that is already in place. We also build floor and stair opening closures, floor reinforcing, and steel plate installations for occupied buildings that cannot stop operating while the work happens.
Garbage Bin Enclosures
NYC set-out rules pushed bins off the sidewalk, and our steel garbage bin enclosures are built for that. The Economaster outdoor enclosure is our workhorse for brownstones, small apartment buildings and areaways, sized to the bins the building actually uses. For high-volume properties we build heavy-duty commercial and industrial enclosures in longer runs with reinforced framing and lids that hold up to daily use. Both are rodent-proof: tight tolerances, no gnaw gaps, and latching that keeps the lid shut between pickups.
Roof, Ladders & Structural Steel
On rooftops and in mechanical spaces we build the steel that everything else stands on: HVAC roof dunnage and equipment bases in pocketed, floating and through-roof configurations, catwalks and raised platforms over pipe runs, and galvanized grating walkways and infill panels. Access is covered by fixed roof access ladders, ladders with welded safety cages built to code height as one assembly, and steep-pitch ships ladders for tight pits and hatches. Heavier work runs through our structural steel fabrication line - columns, beams, lintels and mezzanines - along with modifications and repairs to steel that is already in place, plus security doors and window guards and the one-off custom iron works that do not fit a category.
Every job is measured in the field and built to that opening - we fabricate in our own Brooklyn shop and install with our own crew, the same way we have since 1972.
How a Project Runs, Start to Finish
Most jobs begin with a phone call to (888) 577-8335, a free estimate request, or an email with specs and drawings attached. We price from that first conversation, so you get a real number before anyone schedules a visit. If the price works, we come out, look at the condition, and take field measurements ourselves - that step is why our doors and stairs fit openings that are rarely square or level.
Next come shop drawings, produced in house. We have been detailing our own drawings for over 40 years and can provide calculations and stamping when the job requires it, which keeps approvals moving instead of waiting on an outside detailer. Once drawings are approved, fabrication happens at 135 Liberty Ave in Brooklyn - cutting, welding, galvanizing and finishing under one roof, where we can correct a fit issue the same day instead of shipping a piece back to a distant plant.
Installation is done by our own crew, not a subcontractor. That matters on occupied buildings, where the sidewalk, storefront or stairwell has to stay usable and the crew has to coordinate with other trades already on site. We are fully insured for both fabrication and installation across New York City and the surrounding metro area, and we answer every call - including the ones after the job is finished.
Who We Work With
The majority of our work comes from general contractors, property managers, building owners and facilities managers who need steel that passes inspection and shows up when promised. We are used to working inside an active construction schedule and coordinating with architects, engineers and other trades. We also work directly with co-op and condo boards, restaurant and retail operators, and homeowners of brownstones, townhouses and rowhouses - the same shop and the same crew, whether the job is one cellar door or a full building package.
If you are comparing fabricators, the practical difference is that we own every step. One company measures, details, fabricates and installs, so there is no gap between the drawing and what lands on your sidewalk - and no second number to chase when something needs adjusting. See what our customers say or browse the full project portfolio.
Serving All of New York City and the Metro Area
Steel Masters NYC fabricates and installs from our Brooklyn shop at 135 Liberty Ave, serving commercial and residential properties across the entire New York City Metro area. Our crew installs throughout Brooklyn, Manhattan, Queens, the Bronx, Staten Island, Long Island, and Westchester.
Brooklyn is our home base, so Brooklyn work often gets the fastest turnaround. In Queens and the Bronx we do a steady volume of cellar doors, enclosures and exterior stairs on mixed-use and multifamily buildings. Manhattan jobs are usually tight-site work where the sidewalk cannot be closed for long, and Staten Island, Long Island and Westchester lean toward residential stairs, railings and fencing.
Please browse our steel fabrication categories to explore recent projects and installations. Call us at (888) 577-8335 or contact us for a free commercial steel estimate at your location.
Frequently Asked Questions
Steel Masters NYC has been fabricating and installing commercial and residential steel and iron works products since 1972 - over 50 years. We are based at 135 Liberty Ave, Brooklyn NY 11212.
Get a Free Steel Fabrication Estimate
Fully insured, Brooklyn-based, family-run since 1972. We answer every call and quote every job.
