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Expert Glass RepairRepair & Installation -- Arlington, VA

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Home/Commercial/Herculite Doors
Frameless Glass Door Specialists

Herculite & Frameless
Glass Doors

All-glass Herculite door installation, repair, and glass replacement. Patch fittings, floor closers, and complete hardware service across DC, Northern Virginia, and Maryland.

From single frameless entry doors to complete all-glass entrance walls with sidelights and transoms, we handle every Herculite door system in the DMV.

(703) 679-7741Free Estimate

Same Day

Service Available

1/2"

Tempered Glass

All

Patch Hardware

20+

Years Experience

Patch FittingFloor CloserLock Rail1/2" Tempered
4.9 Rating
|Fully Insured|DC, Virginia & Maryland|Same-Day Service

Herculite Door Systems

Frameless Glass Door Configurations

We install, repair, and maintain every type of Herculite and frameless all-glass commercial door system.

Most Common

Single Herculite Doors

A single all-glass door panel with patch fittings and floor closer. The most common frameless glass door configuration for boutique retail,

Pair (Double) Herculite Doors

Two frameless glass doors meeting at the center with an astragal or lock rail. Used for wider openings in office lobbies, banks,

Herculite with Sidelights

Frameless glass doors flanked by fixed glass sidelights connected by patch fittings.

Herculite with Transom

Frameless glass doors with a fixed glass panel above, connected by a transom rail or patch fittings.

Interior

Interior Herculite Doors

Frameless glass doors used as interior partition doors in offices, conference rooms, and retail back-of-house.

Heavy Duty

Heavy-Duty Herculite Doors

Oversized frameless glass doors using 3/4 inch tempered glass weighing 300+ pounds. Require heavy-duty floor springs and commercial-grade patch fittings.

Technical Specifications

Herculite Door Specifications

Frameless glass doors use heavy tempered glass with precision hardware for safe, smooth commercial operation.

Key Specifications

Glass Thickness

1/2 inch (12mm) or 3/4 inch (19mm)

Glass Type

Tempered safety glass (ANSI Z97.1)

Maximum Panel Size

Up to 60 x 120 inches

Panel Weight

150 to 400+ lbs depending on size

Edge Finish

Flat polish, pencil polish, or beveled

Hardware

Patch fittings, floor closers, top rails

Lock Options

Center lock, bottom lock, electric strike

Glass Options

Clear, low-iron, tinted, frosted, decorative

Hardware Brands

Dorma
CRL (C.R. Laurence)
Pinnacle
US Horizon
Rixson
?"?"ASSA ABLOY
Bohle
PDQ

Applications

Where Herculite Doors Are Used

Frameless glass doors are specified for commercial entrances where maximum transparency and modern aesthetics are required.

Office building lobbies
Boutique retail entrances
Banks and financial institutions
Law firms and professional offices
Jewelry and luxury retail
Art galleries and museums
Hotel and hospitality entrances
Corporate conference rooms

Why Choose Us

DMV Herculite Door Experts

Architects, property managers, and business owners trust Expert Glass Repair for frameless glass door service.

Frameless Transparency

All-glass construction eliminates bulky door frames, creating maximum visibility and an open, modern aesthetic that showcases your interior. The sleek, minimalist design is the hallmark of premium commercial entrances.

Structural Strength

Tempered safety glass at 1/2 inch or 3/4 inch thickness is exceptionally strong and durable. These doors withstand heavy daily commercial traffic while meeting all building code safety requirements for commercial entry doors.

Precision Hardware Service

We install, repair, and replace all patch fitting hardware, floor closers, top pivots, lock rails, and door pulls. Proper hardware installation and adjustment is critical for the safe, smooth operation of frameless glass doors.

Fully Insured

Full commercial liability insurance with COI certificates provided for property management companies and general contractors throughout the DMV.

FAQ

Herculite Door Questions

Common questions about Herculite and frameless all-glass commercial doors.

What is a Herculite door?
A Herculite door is a heavy, frameless tempered glass door typically 1/2 inch or 3/4 inch thick. The term "Herculite" originally referred to a PPG brand name but has become a generic industry term for all-glass commercial entry doors. These doors use patch fittings, floor closers or floor springs, and top rails rather than conventional door frames to create a clean, modern all-glass entrance.
How thick is the glass in a Herculite door?
Herculite doors typically use 1/2 inch (12mm) tempered safety glass for standard commercial applications. Heavier-duty applications and doors over 8 feet tall may use 3/4 inch (19mm) tempered glass. The glass must be heat-treated tempered safety glass per building code requirements for commercial entry doors.
Can Herculite door glass be repaired or does it need full replacement?
Tempered glass cannot be repaired. If a Herculite door panel is cracked, chipped, or shattered, the entire glass panel must be replaced. Because the glass is tempered, any damage to the surface can cause the entire panel to shatter into small pieces. We fabricate replacement panels to match the original specifications including thickness, edge polish, and cutout locations for hardware.
What are patch fittings on a frameless glass door?
Patch fittings are metal hardware pieces that clamp onto the edge of the glass panel to connect it to the floor spring, top pivot, lock rail, or adjacent glass panels. They bolt through the glass using pre-drilled holes. Common patch fitting brands include Dorma, CRL, and Pinnacle. We replace worn, broken, or corroded patch fittings and re-set doors for proper alignment.
How long does it take to replace a Herculite glass door panel?
If we have the replacement glass in stock (common sizes), a Herculite door panel replacement can be completed the same day. Custom-sized panels with specific cutout patterns for patch fittings typically require 3 to 7 business days for fabrication. The physical installation usually takes 2 to 4 hours including hardware transfer, alignment, and adjustment.
Do Herculite doors meet building code requirements?
Yes. Herculite doors use tempered safety glass that meets ANSI Z97.1 and CPSC 16 CFR 1201 safety standards. When properly installed with code-compliant hardware including floor closers, panic hardware where required, and proper ADA clearances, Herculite doors satisfy commercial building code requirements for entry doors.

Service Areas

Herculite Door Service Across the DMV

We install, repair, and maintain frameless glass doors throughout Washington DC, Northern Virginia, and Maryland.

Washington DC

Downtown DCGeorgetownCapitol HillNavy YardThe WharfDupont CirclePenn QuarterK Street

DC office buildings and boutique retailers along K Street, Georgetown, and Penn Quarter feature frameless Herculite glass entrances.

Northern Virginia

ArlingtonTysons CornerRestonFairfaxAlexandriaCrystal CityRosslynFalls Church

Northern Virginia corporate buildings and luxury retail locations rely on frameless glass doors for modern, professional entrances.

Maryland

BethesdaSilver SpringRockvilleCollege ParkColumbiaGaithersburgNational HarborLaurel

Maryland professional offices and retail locations trust us for Herculite door installation, repair, and glass replacement.

Savings & Discounts

Current SpecialsMilitary & First Responder DiscountSenior DiscountReferral ProgramWhy Choose UsFinancing

Related Services

Pivot Doors

Commercial pivot door systems with floor springs, center pivot, and offset pivot hardware for modern entrances.

Learn More

Commercial Door Repair

Complete commercial glass door repair including closers, panic hardware, hinges, and glass replacement.

Learn More

Door Closers

Overhead, concealed, and floor closer installation, repair, and adjustment for all commercial door types.

Learn More

Commercial Glass

Full-service commercial glass including storefronts, curtain walls, window replacement, and maintenance programs.

Learn More

Herculite Door Expertise

Understanding Herculite and Frameless Glass Doors

Herculite doors represent the pinnacle of commercial glass door design, offering maximum transparency without the visual interruption of door frames. These heavy tempered glass panels, typically 1/2 inch or 3/4 inch thick, are mounted using precision patch fittings that clamp directly to the glass edge and connect to floor closers, top pivots, and lock mechanisms. The result is an all-glass entrance that provides unobstructed visibility into and out of the space, creating the modern, professional appearance that high-end offices, retail boutiques, and financial institutions demand.

The hardware that supports Herculite doors is the key to their performance. Patch fittings from manufacturers like Dorma, CRL, and Pinnacle are precision-machined metal pieces that bolt through pre-drilled holes in the tempered glass. Floor closers from Rixson and Dorma provide controlled closing speed, backcheck to prevent slamming, and latching action. Lock rails house the locking mechanism at the mid-height of the door. All of these components require expert installation and periodic adjustment to maintain safe, smooth operation.

Expert Glass Repair provides complete Herculite door services across Washington DC, Northern Virginia, and Maryland. We install new frameless glass door systems, replace shattered glass panels with custom-fabricated tempered glass, repair and replace patch fittings, service floor closers, and maintain all-glass entrance systems. Our technicians carry patch fitting hardware and common glass sizes on our service vehicles for same-day repairs when possible.

Need Herculite Door Service?

Call for same-day frameless glass door repair or schedule a free estimate for new installations, glass replacement, and hardware service.

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