Why does my commercial door keep sagging?

The door is heavier than its hinges can carry for long. Each opening works the screws loose and wears the hinge knuckles until the door drops. A continuous hinge carries the load along the whole door edge, so the problem stops coming back.

Can you put a continuous hinge on an existing door?

Usually yes. We re-use your existing hollow metal or aluminum storefront door and frame, repair the frame where the old hinge screws stripped, and install the continuous hinge in place of the old butt hinges or pivots.

Will my lock and closer work better afterward?

Yes. Most lock and closer problems on a sagging door come from the door being out of line. Once it hangs straight we adjust the closer and latch so the door closes and locks on its own.

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Continuous Hinge Door Repair

Door sagging, rubbing the frame or dragging on the floor? Hinges that keep breaking? We take the door off its worn hinges and re-hang it on a full-height continuous hinge so it stays straight for years.

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Licensed & insured

Licenses: Locksmith LK1093 · Specialty contractor: Broward CC# 15-CRP-18214X · Palm Beach # U-22653

Call Broward: (954) 575-4600 Call Palm Beach: (561) 488-7778Commercial service across Broward & Palm Beach

What we do

Most commercial doors hang on three or four butt hinges, or on top and bottom pivots. On a heavy steel door or a busy storefront entrance those few small hinges carry all the weight. Screws pull out of the frame, the knuckles wear, and the door drops at the latch side. Then it rubs, drags on the threshold, slams, or won't lock.

A continuous geared hinge runs the full height of the door. It spreads the weight along the whole edge of the door and frame, so nothing works loose and the door can't sag. We remove the old hinges or pivots, fill and reinforce the frame where screws have stripped, cut the hinge to length and fasten it every few inches. Then we square the door in the opening.

Because the door hangs straight again, your lock, closer and panic bar line up and stop wearing out. The full-length hinge also closes the gap on the hinge side of the door, where a pry bar or a hand could otherwise get in. It is a good fix for back doors, stairwell and corridor doors, school and medical buildings, and storefront entrances that open hundreds of times a day.

Common calls

Doors that sag, rub the frame or drag on the floor
Butt hinges that keep breaking, or screws pulled out of the frame
Storefront doors with worn pivots that won't stay aligned
Re-hanging the door on a full-height continuous geared hinge
Hollow metal (steel) doors, fire doors and aluminum storefront doors
Heavy and high-traffic doors: back doors, entrances, corridors, schools
Closes the security gap on the hinge side of the door
Lock, closer and panic bar adjusted after the door is aligned

Continuous hinge door repair — photos

Photos of past AMS Locks & Doors jobs and the hardware we install.

Gray hollow metal door on a yellow stucco wall with a full-height continuous hinge — Continuous hinge on a hollow metal exterior door

Weathered gray steel rooftop door fitted with a new continuous hinge over the old butt-hinge frame — Rooftop steel door re-hung on a continuous hinge

Tan commercial steel door with a full-height continuous hinge, pull handle and card reader — Card-access steel door on a continuous hinge

White frosted-glass commercial door with a continuous hinge and keypad lever lock — Frosted-glass entry door on a continuous hinge

Wood kitchen door with a continuous hinge installed over old butt-hinge cutouts — Butt hinges replaced with a continuous hinge

Wood employees-only door with a full-height continuous hinge — Wood interior door upgraded to a continuous hinge

White apartment unit door with a continuous hinge and keypad deadbolt — Apartment/condo unit door on a continuous hinge

Gray hollow metal interior door with a full-height continuous hinge — Interior hollow metal door on a continuous hinge

Close-up of a labeled continuous hinge fastened along the hinge edge of a commercial door — Continuous hinge close-up — fastened every few inches

Failed butt hinge on a commercial door, replaced with a continuous hinge — Failed hinge — a typical continuous hinge upgrade

Worn, rusted hinge knuckles on a heavy commercial door — Worn hinges on a heavy commercial door

Continuous geared aluminum hinge for heavy commercial doors — Example: continuous geared hinge

Questions

Why does my commercial door keep sagging?: The door is heavier than its hinges can carry for long. Each opening works the screws loose and wears the hinge knuckles until the door drops. A continuous hinge carries the load along the whole door edge, so the problem stops coming back.
Can you put a continuous hinge on an existing door?: Usually yes. We re-use your existing hollow metal or aluminum storefront door and frame, repair the frame where the old hinge screws stripped, and install the continuous hinge in place of the old butt hinges or pivots.
Will my lock and closer work better afterward?: Yes. Most lock and closer problems on a sagging door come from the door being out of line. Once it hangs straight we adjust the closer and latch so the door closes and locks on its own.