Hinges and pivots carry the full weight of your door every time it swings. Butt hinges mount along the door edge. Continuous hinges run the full height of the door and spread the load evenly. Pivots hold the door at the top and bottom, so the floor and frame share the weight. Each system fits a different door, traffic level, and look. Picking the right one keeps your door square, quiet, and secure. It also helps your lock and closer work the way they should.
Worn hinge pins and knuckles are the most common cause of sagging doors. You may see the door rub the frame, drag on the floor, or fail to latch. Pivots wear out too, leaving glass and storefront doors loose or uneven. Small problems grow fast on busy doors. Our team inspects the hinges, tightens or replaces worn parts, and realigns the door. We also upgrade weak openings to stronger continuous hinges when needed.
Every door needs the right hanging hardware. We service butt hinges, ball bearing hinges, spring hinges, geared continuous hinges, and pin-and-barrel continuous hinges. We also install and repair center hung, offset, and intermediate pivots, plus electrified hinges that carry power to access control locks. Browse each hardware type below to learn how it works and where it fits best.
Ball bearing hinges keep busy commercial doors swinging smoothly, square and code-compliant. See how to pick the right grade, size and weight, and get expert installation in the DMV.
A practical guide to commercial butt hinges: grades, sizes, bearings, and fire door rules. See common failures and how King Locksmith and Doors repairs & replaces hinges across the DMV.
Center hung pivots carry a door's weight from the floor and let it swing both ways. See how to choose, compare and fix them, with expert help across Maryland, DC and Northern Virginia.
Concealed door hinges sit inside the door and frame for a clean, tamper-resistant look. Learn how to choose, size, and fix them, with expert local service across Maryland, DC, and NoVA.
Learn how continuous hinges (piano hinges) stop door sag on busy commercial doors, how to choose geared or pin-and-barrel models, and where to get expert installation across the DMV.
Electrified hinges carry hidden power from frame to door for access control locks. Learn how to choose wire count, size, and fire rating, plus local installation help in MD, DC, & NoVA.
Hospital tip hinges use sloped tips and non-removable pins to cut ligature risk on patient doors. See how to choose the right type and where King Locksmith installs them across the DMV.
Offset pivots move a heavy door's weight off the frame and onto the floor. Learn how they work, how to choose the right set, and where to get expert service across Maryland, DC and NoVA.
Non-removable pin (NRP) security door hinges keep outswing doors on their frames. King Locksmith And Doors installs and repairs NRP hinges for businesses in MD, DC, & Northern Virginia.
King Locksmith and Doors installs, adjusts and repairs Grade 1 spring hinges on commercial and fire-rated doors across Maryland, DC and Northern Virginia, so your doors close and latch.
A continuous hinge is a smart upgrade for heavy, high-traffic, or often-abused doors. It runs the full height of the door and spreads the weight from top to bottom. This helps stop sagging and early hinge failure. Full-surface models can often retrofit doors that now use butt hinges or offset pivots.
Center hung pivots sit in the middle of the door’s thickness. They work on single or double acting doors, so the door can swing one way or both ways. Offset pivots sit closer to one face of the door and are used on single acting doors. A 3/4 inch offset is the most common. A 1-1/2 inch offset lets the door clear trim and swing up to 180 degrees.
Yes. NFPA 80 sets the rules for hinges and pivots on fire doors. In most cases, they must be steel, ball bearing, sized to the door, and used in the right number. Spring hinges and continuous hinges must be labeled for fire use. We help you pick hardware that keeps each opening code compliant and ready for inspection.
Explore more door hardware that works with your hinges and pivots. Learn how locks, closers, exit devices, and other parts fit together to keep your commercial doors safe and smooth.
