Diamond Plate & Sidewalk Doors

Sidewalk Door Installation in King of Prussia, Norristown, Wayne

Upgrade your Pennsylvania and New Jersey business or commercial property with a safe, durable sidewalk door

Steelway Diamond Plated Door

We install quality diamond plate doors!

If your diamond plate door does not have the Steelway logo, then you do not have the best! Steelway Cellar Doors has been manufacturing custom steel access doors since 1963. We have remained focused on the cellar access business ever since our beginning, and we understand the complexity that sidewalk doors can often present. We are committed to providing each of our customers with a positive experience and a quality product, and our line of diamond plate sidewalk doors and aluminum sidewalk doors will solve all of your problems!

Our line of standard size doors will meet all code requirements for sidewalk doors in a cost-effective, quick-delivery manner. We also make custom size sidewalk doors that are designed to make the installation process as easy as possible. These access doors are made to fit the specific opening — no more cutting foundations to fit the door. There isn't an opening that we can't cover!

Before and After
  • Installation of New Custom Diamond Plate Door in New Castle, DE
    Installation of New Custom Diamond Plate Door in New Castle, DE

    This old diamond plate door in New Castle, DE was beginning to fade. Our team got the call and we quickly had the old door removed and a brand new diamond plate door installed. Check it out. We think you'll agree that it looks stellar!

  • Custom Diamond Plate Door Installed in Wilmington, DE
    Custom Diamond Plate Door Installed in Wilmington, DE

    This customer in Wilmington needed to replace a rotting door. We gave them an estimate and replaced it with a brand new Steelway Door, making the sidewalk safe and secure again!

  • Installation of a Custom Diamond Plate in Pottstown, PA
    Installation of a Custom Diamond Plate in Pottstown, PA

    With the removal of this damaged Diamond Plate Door, we repaired the concrete and installed a brand new Custom Diamond Plate Door.

  • Custom Diamond Plate Door in Drexel Hill, PA
    Custom Diamond Plate Door in Drexel Hill, PA

    Sidewalks receive a steady flow of traffic, and this Drexel Hill, PA street was no exception. It was clearly becoming time for a replacement. We removed the old diamond plate door and installed one of our beautiful and tough diamond plate doors as a replacement. Now this sidewalk is safer for everyone!

  • Installation of New custom Diamond Plate Door in Bryn Mawr, PA
    Installation of New custom Diamond Plate Door in Bryn Mawr, PA

    Tired of looking at a rusted Diamond Plate all day? No problem! We guarantee exceptional installations of Diamond Plate doors with repair concrete around the front of the unit.

Customer Reviews

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By Zachary D. from Malvern, PA
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By Jordan Y. from Plymouth Meeting, PA
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By Charles B. from Hudson, MA

Diamond plate sidewalk access doors to fit your needs in Norristown, Wayne & West Chester

We understand that not all diamond plate doors have to be custom made, so we have introduced a line of standard sidewalk doors. These diamond plate doors are all designed to fit standard openings or to work as a quick solution when you are pouring new sidewalks. All of our standard doors support 300lb/s.f. live load, are prime coated with one finish coat of black paint and are in stock ready for same day shipping.

If you need a custom diamond plate door, we can make any size or shape to fit your needs! All you need to do is take the dimensions of the door and we will make a door specifically designed to fit your application and requirements.

Sidewalk Door

A finished pedestrian sidewalk door.

Steelway custom diamond plate door features in Delaware County, PA:

  • 3/16: diamond plate door panels
  • 1/4″ angle iron frame
  • All welded seams ground smooth
  • Primer and finish coat of paint
  • Additional locking and safety options


Hinge system: We use 1/2″ x 1″ bar stock with a 3/8″ hinge pin for rugged durability even in the most demanding commercial applications.

Frame: Our strong 3″ x 3″ x 1/4″ angle iron frame is welded to our exact dimensions and all the seams are ground smooth for the correct fit and a professional finish that will last for decades.

Handle: All Steelway diamond plate doors have a 3/8″ round rod handle on the right door for easy pull-up and no maintenance. We use our recessed Steelway handle whenever possible.

Padlock tabs: Keeping your access secure is as easy as specifying where you want your padlock tabs. Just tell your salesperson what your locking needs are and we will solve your problem.

Safety chain: We can install a safety chain that protects the front of the door opening from accidental fall-ins. If you intend to have the doors open for ventilation, this option is a must.

Rebar studs: If this is a new construction, we can weld #4 rebar studs under the frame to make sure the unit is permanently secure.

Aluminum Sidewalk Access Door

We provide quality aluminum sidewalk doors in the King of Prussia area.

Aluminum sidewalk doors in Montgomery County, PA, New Castle County, PA, & across the Greater Delaware Valley

We also provide an aluminum sidewalk door option, designed for easy operation and superior durability. These aluminum sidewalk access doors are built for easy lifting and accessibility, as well as quality waterproofing and a stylish design. Our steel and aluminum sidewalk doors are guaranteed to last for years to come while providing you with easy access and a convenient entranceway.

Interested in learning more about our steel and aluminum pedestrian sidewalk doors? Steelway Cellar Doors is your certified manufacturer of diamond plate doors in West Chester, Philadelphia, Wilmington, Abington, Haverford, Cheltenham, Havertown, Norristown, King of Prussia, Wayne, and surrounding areas, offering free, no-obligation cost estimates. If you need a diamond plate door replacement or installation, we can help!

our service area

We serve the following areas

New Jersey
  • Camden
Pennsylvania Our Locations:

Steelway Cellar Doors
290 E Church Rd Suite 2
King of Prussia, PA 19406