Frameless All-Glass Entrance Doors (Herculite Doors)
Frameless glass doors, often called Herculite doors, give storefronts, lobbies and office suites a clean, transparent entrance. Made of 1/2" or 3/4" tempered glass with minimal patch fittings, they maximize visibility and make a strong first impression. CBE Glass installs, repairs and services all-glass doors across Washington DC, Maryland and Northern Virginia.
Door systems and hardware
- Single and double all-glass entrance doors
- Top and bottom patch fittings or full rails
- Floor closers, overhead closers and pivots
- Ladder pulls, push bars and keyed locks
- All-glass sidelites, transoms and headers
- Sliding and bi-folding frameless glass systems
Built for heavy daily traffic
Entrance doors open and close thousands of times a day. We specify heavy-duty floor closers and patch hardware, set the glass perfectly level and adjust closing speed so the door latches every time and meets accessibility opening-force limits.
Repair and adjustment
Dragging, sagging or slamming glass doors usually need new pivots, a closer adjustment or a replacement floor closer. Our door repair technicians carry common parts and can often fix the door on the first visit.
Entrance and storefront projects
Other services

Curtain Wall Systems
Stick-built and unitized curtain wall, window wall and clerestory glass for office buildings, campuses, clinics and big-box retail.
Learn more
Glass Railings & Handrails
All-glass stair and balcony railings, rooftop guards and handrails installed with hardware that meets code.
Learn more
Glass Partitions & Office Glass
Demountable and frameless office partitions, glass storefronts for suites, meeting rooms and interior glass doors.
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Skylights & Overhead Glazing
Pyramid, ridge and polygon skylights, overhead roof glazing and repair of leaking skylight systems.
Learn moreOur crews work throughout Washington, DC, Maryland and Northern Virginia.
Questions about frameless glass doors
Need a specific answer? Call our estimating team at (202) 492-0676.
What thickness are frameless glass doors?
Most commercial all-glass doors are 1/2" tempered glass; 3/4" is used for very large or premium doors.
Can frameless doors be locked securely?
Yes. Bottom-rail locks, keyed patch locks and electrified hardware are all available.
Can you replace only the glass in an all-glass door?
Yes. We remove the fittings, install new tempered glass with the same hardware prep and re-hang the door.
Tell us about your glass project
New storefront, curtain wall, railings, office glass or an emergency repair: send us the details and receive a clear, itemized estimate quickly. We cover Washington DC, Maryland and Northern Virginia every day of the year.


