Best Steel Mills in Pittsburgh, PA

Updated September 2026 · 10 businesses · Pittsburgh guide

Looking for steel Mills in Pittsburgh? Below you'll find 10 local options with their address, phone number, website and opening hours, plus practical advice on choosing the right one.

What they do: Steel producers and metal processors. Western Pennsylvania, and Pittsburgh in particular, built its history on steel, and several mills and fabricators still operate in the region.

This guide lists 10 steel Mills in and around Pittsburgh, spread across 10 ZIP codes. 10 have a phone number you can call directly from this page, 7 link to their own website, 2 are open on weekends. Listings are organized so you can compare them at a glance and contact them directly.

Top 10 Steel Mills in Pittsburgh

Listings are shown in no paid order: no business can pay to appear or to rank higher on this page.

6 WHEMCO Steel Castings, Inc.

Open 24/7ZIP 15120
Opening hours
MonOpen 24 hours
TueOpen 24 hours
WedOpen 24 hours
ThuOpen 24 hours
FriOpen 24 hours
SatOpen 24 hours
SunOpen 24 hours

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8 ATI Allegheny Ludlum

ZIP 15220
Opening hours
Mon7 AM-3:30 PM
Tue7 AM-3:30 PM
Wed7 AM-3:30 PM
Thu7 AM-3:30 PM
Fri7 AM-3:30 PM
SatClosed
SunClosed

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10 Rivers of Steel: Carrie Blast Furnaces National Historic Landmark

Open weekendsZIP 15218
Opening hours
MonClosed
TueClosed
Wed10 AM-2 PM
Thu10 AM-2 PM
Fri10 AM-2 PM
Sat10 AM-4 PM
Sun10 AM-2 PM

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How to choose steel Mills in Pittsburgh

  • Check any required licenses or certifications for the profession in Pennsylvania.
  • Ask for references from clients with needs similar to yours.
  • Get pricing in writing, whether hourly, flat-fee or retainer.
  • Make sure you know who will actually handle your account or project.
  • Compare response times. A quick reply before you hire usually means good service afterwards.

Local tips for Pittsburgh

Allegheny County's Health Department licenses plumbers throughout the county and inspects restaurants, and the City of Pittsburgh's Department of Permits, Licenses and Inspections handles building permits and contractor licensing inside city limits.

Because of the rivers and hills, a business that looks close on a map can be a long drive away. Check which side of the river it's on and whether a bridge or tunnel stands in the way, especially at rush hour.

Pittsburgh is in Allegheny County, and local phone numbers use the 412 and 878 area codes. Popular areas include Downtown, Strip District, Lawrenceville, Shadyside, Squirrel Hill, Oakland, South Side, North Shore.

Frequently asked questions

Which steel Mills in Pittsburgh are open on weekends?

According to their listed hours, these are open on Saturday or Sunday: WHEMCO Steel Castings, Inc., Rivers of Steel: Carrie Blast Furnaces National Historic Landmark. Hours can change on holidays, so call before you go.

Which areas of Pittsburgh do these steel Mills cover?

The steel Mills on this list are located in ZIP codes 15056, 15104, 15120, 15122, 15203, 15207, 15218, 15219, 15220, 15227. Many businesses also serve nearby neighborhoods and suburbs, so ask when you call.

How do I compare steel Mills in Pittsburgh?

Shortlist two or three providers, ask each for a written proposal with pricing and scope, check reviews and references, and choose the one that communicates most clearly.

Is it better to hire a local provider?

A local provider knows Pittsburgh's market and regulations and can meet in person, which helps with complex or ongoing work.

What questions should I ask before hiring?

Ask about experience with similar clients, total cost, timelines, who your contact will be, and how problems or disputes are handled.

Information is collected from public sources and may change. Please confirm hours, prices and availability directly with each business. Business owner? Ask us to update your listing.