Basement Access Solutions Engineered for Durability

We Design and Fabricate Cellar Doors, Stairs, and Supplies Built for Real-World Use

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Metal cellar doors on brick buildings.

Proven Craftsmanship With Long-Term Protection

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Over 25 Years of Industry Experience

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15-Year Warranty on Basement Doors

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10-Year Warranty on Sidewalk Doors & Products

NYC’s Cellar Door Experts

Sidewalk Door and Supply LLC designs and fabricates custom sidewalk and basement cellar doors, enclosures, and metal access supplies. Proudly serving NYC, NJ, and upstate NY with decades of trusted expertise.

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Direct Communication

Work directly with our experienced fabricators.

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No Middleman Hassles

You’re dealing with the source — not a reseller.

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Detail-Driven Craftsmanship

We care about every cut, weld, and bolt.

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Solutions We Specialize in

See What We Offer
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Basement Cellar Doors

Custom-built steel doors for secure basement access.

Open cellar door with stairs visible.

Sidewalk Doors

Durable, weather-tight doors for sidewalk entryways.

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Cellar Door Supplies

Locks, latches, gates, and
grates for cellars.

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Basement Access Enclosures

Protective enclosures for safe basement access points.

Industrial staircase with metal railing and pipes.

Metal Basement Stairs

Strong, rust-resistant stairs
built to last.

Staircase leading to basement door entrance.

Basement Handrails

Secure, custom metal handrails for safe entry.

Basement with pipes and wooden ladder visible.

Basement Ladders

Space-saving, sturdy ladders for basement entryways.

Stairs leading to a basement entrance.

Basement Sidewalk Alteration

Modifications for compliant, accessible sidewalk access points.

Concrete storm shelters in grassy area.

Custom Well Covers

Made-to-fit steel covers to
secure wells.

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See the Work That Speaks for Itself

Our craftsmanship is on display all over New York City, New Jersey, and upstate NY. Browse our gallery to see real installations, real clients, and real results that reflect over 25 years of metalworking experience.

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Let’s Get You Covered

Have questions about our products or need help with a custom cellar door solution? Whether you're a homeowner, business owner, or contractor, we're here to provide expert guidance, pricing details, and trusted service. Reach out now.

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Client Reviews

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~Y. Miller, Brooklyn, NY

“I wanted to get a Cellar Door installed in my home. The workmanship of KKM Ironworks was so impressive! They were so efficient and the end result was better than I had imagined. I would definitely recommend them to anyone.”

 

~T. Rosario, Bronx, NY

“I recently purchased a new home and I wanted to install Cellar doors, fences, railings and gates. I was unsure of whom to go to so a friend of mine referred me to KKM Ironworks. I didn’t know where else to turn so I figured I’d give them a shot. I was very impressed with their work. They were very helpful and professional throughout the whole process.”

 

~N. Buckler, New York, NY

“Great work. Needed three new sets of staircases and KKM Ironworks got them done in no time.”