OpenFire

Firestopping firms in Baltimore

3 firestopping companies in Baltimore — Penetration seals and linear joints.

Alpha Insulation & Waterproofing

FM 4991 and UL Qualified firestopping and spray fireproofing.

Contractor 100+ people Est. 1982 11 offices

Compartment walls & cavity barriers Firestopping Structural fire protection

Atlanta, Georgia · HQ View firm
ARC Firestop Solutions

FM 4991 approved firestop contractor for Maryland, DC and Virginia.

Contractor 6–20 people Est. 2008 1 office

Compartment walls & cavity barriers Firestopping

Baltimore, Maryland View firm
Royals Commercial

UL Qualified firestop and intumescent coating contractor.

Contractor 21–100 people Est. 1990 1 office

Firestopping Structural fire protection

Baltimore, Maryland View firm

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