Commercial Entrance Systems
Expert installation, repair, and maintenance of commercial revolving door systems. Manual, automatic, and security configurations engineered for energy efficiency and high-traffic performance across DC, Virginia, and Maryland.
Door Systems
From compact manual revolvers to large-diameter automatic systems, we install and service every type of commercial revolving door.
User-pushed revolving doors with speed governors for controlled rotation. The most cost-effective option for moderate-traffic commercial entrances.
Motor-driven revolving doors with presence sensors that automatically adjust rotation speed. Hands-free operation for high-traffic buildings.
Mantrap-style revolving doors with interlocked compartments, weight sensors, and tailgating detection. Used in government buildings, data centers,
Frameless or minimal-frame revolving doors with floor-to-ceiling glass wings and curved glass drum walls.
Ten- to fourteen-foot diameter revolving doors for hotel lobbies, convention centers, and hospital entrances. Accommodate luggage carts, wheelchairs,
Six- to eight-foot diameter revolving doors for smaller entrances and retrofit applications. Provide energy-saving airlock performance in limited space.
Engineering Detail
A revolving door functions as a continuously available airlock. The wings divide the circular enclosure into compartments that always seal against the drum wall, preventing direct air exchange between inside and outside.
In a four-wing configuration, opposite wings always contact the curved drum wall. This means there is never a direct air path between inside and outside, creating a permanent airlock that dramatically reduces energy loss compared to conventional doors.
A precision-ground center shaft supported by thrust bearings carries the entire wing assembly. The bearings are engineered for decades of continuous rotation under full load with minimal maintenance.
A mechanical or electronic speed governor limits the maximum rotation speed to prevent the door from spinning too fast. This protects pedestrians and ensures the door meets ANSI A156.27 safety standards.
The enclosure is formed from curved tempered or laminated glass panels set in aluminum or stainless steel framing. The drum wall provides weather protection while maintaining full visual transparency.
A ceiling canopy above the door assembly houses lighting, the motor (for automatic doors), and wiring. Brush seals at the wing tips and top rail maintain the airlock seal during rotation.
Modern revolving doors include wings that can fold flat or break away under push pressure. This creates a clear passage for emergency egress and meets fire code requirements for exit paths.
Applications
High-rise lobby entrances with heavy pedestrian traffic. Four-wing automatic revolving doors handle peak-hour capacity while maintaining the building pressure balance.
Grand entrance revolving doors for luxury hotels. Large-diameter three-wing doors accommodate guests with luggage and create a signature arrival experience.
Large-diameter revolving doors for main entrances that accommodate wheelchairs, gurneys, and high visitor volumes while maintaining climate control.
High-speed automatic revolving doors for terminal entrances. Handle extreme cycle counts and bidirectional pedestrian flow.
Security revolving doors with mantrap compartments for government buildings, embassies, data centers, and classified facilities.
Mall entrances, department store lobbies, and flagship retail locations. Manage air conditioning loss in climate-sensitive retail environments.
Why Choose Us
Building owners and property managers across the DC metro area trust Expert Glass Repair for revolving door installations and repairs that deliver energy savings, security, and reliable performance.
Revolving doors reduce air infiltration by up to 75 percent compared to swinging doors, cutting HVAC costs by 30 to 40 percent at the entrance.
Continuous rotation handles large pedestrian volumes without the start-stop cycle of sliding or swing doors. Ideal for lobbies with hundreds of daily users.
Revolving door stuck or making noise? We provide same-day emergency repair to keep your main entrance operational and secure.
Full commercial general liability and workers compensation. COIs provided same-day. Over 20 years of commercial entrance system experience.
Common Questions
Revolving doors reduce air infiltration by up to 75 percent compared to conventional swinging or sliding doors. Studies show that revolving doors can reduce heating and cooling energy loss by 30 to 40 percent by acting as an airlock that prevents the exchange of conditioned interior air with unconditioned exterior air.
Three-wing revolving doors have larger compartments that can accommodate luggage carts, wheelchairs, and groups. Four-wing doors create a tighter airlock seal because opposite wings always contact the drum wall. Three-wing doors are preferred for hotels and airports; four-wing doors for office buildings.
Revolving doors alone do not satisfy ADA accessibility requirements. A hinged or sliding door must be provided adjacent to every revolving door. Many modern revolving doors include bookfold or breakaway panels that collapse to create a flat, accessible opening when needed.
We recommend quarterly maintenance for high-traffic revolving doors and semi-annual service for moderate-traffic installations. Service includes lubricating bearings, inspecting speed governors, testing safety sensors, cleaning tracks, and checking glass panel seals.
Yes. We replace individual glass wing panels and drum wall panels in existing revolving doors. We match the glass type, thickness, and decorative finishes. Glass replacement is typically completed in one day per panel.
Standard revolving door diameters range from 6 feet to 14 feet. Compact 6-foot doors suit smaller entrances, while 10- to 14-foot large-diameter doors accommodate high-traffic lobbies, hotels, and hospitals.
About Revolving Doors
Revolving doors have been a staple of commercial architecture since the late 19th century, and for good reason. They solve two fundamental problems that conventional doors cannot: uncontrolled air exchange and pedestrian congestion. In the Washington DC metro area, where summer humidity and winter cold create significant HVAC challenges, a revolving door at your main entrance can reduce energy loss by 30 to 40 percent compared to a conventional swinging or sliding door.
For government buildings, embassies, and secure corporate facilities throughout the DC area, security revolving doors provide mantrap-style access control. These systems use weight sensors, optical sensors, and interlocked compartments to prevent tailgating and piggybacking. Each compartment admits one person at a time, and the door will not rotate until the access control system confirms authorization.
Expert Glass Repair has installed and serviced revolving doors for office towers, hotels, hospitals, and government buildings across Washington DC, Northern Virginia, and Maryland for over 20 years. We handle everything from glass panel replacement and speed governor repair to complete revolving door installations. Fully insured -- full commercial general liability, workers compensation, and same-day COIs.
Service Areas
Commercial revolving door installation and repair throughout Washington DC, Northern Virginia, and Maryland.
Revolving door service for Tysons office towers, Reston Town Center, Crystal City, and Northern Virginia commercial buildings.
Revolving door service for Bethesda office towers, National Harbor hotels, and Montgomery County commercial properties.
Revolving door service for K Street office lobbies, Georgetown hotels, government buildings, and DC commercial properties.
Ready to Get Started
Revolving doors reduce energy loss by up to 75 percent while handling the highest pedestrian volumes. Contact Expert Glass Repair for a free consultation on revolving door systems for your commercial property.