Door Repair & Installation: Hung Square and Latching Right
A door that drags across the floor, refuses to latch, or pops open on its own is rarely the door's fault alone. Houses settle, frames rack out of square, and humidity swells the slab until it binds against the jamb. Whether you need an existing door eased and re-hung or a brand-new one set into the opening, the headache is almost always about fit, not the slab itself.
A door is really a moving part inside a frame, and it only works when the frame is plumb, the hinges carry the weight without sagging, and the gap around the slab, called the reveal, is even top to bottom. When AZ Smart Fix repairs a door, the first job is figuring out why it's misbehaving: a loose hinge screw, a frame that's shifted, a slab that's swollen, or a strike that no longer lines up. A new install adds steps, setting the frame plumb and level, shimming behind the hinges, and confirming the door doesn't swing open or closed by itself. Get the frame right and everything downstream, the latch, the seal, the swing, falls into place.
How the job is done
- 1
Diagnose the real cause
We check the slab for square, test each hinge for play, and look at the reveal all the way around. A door that binds only in summer points to swelling, while a corner that drags year-round usually means a sagging hinge or a racked frame.
- 2
Tighten or reset the hinges
Loose or stripped hinge screws let a door drop, so we re-secure them, often swapping in a longer screw that reaches the framing behind the jamb. Replacing one short screw with a long one is frequently all it takes to lift a dragging corner.
- 3
Set or shim the frame plumb
For a new install or a racked opening, the frame is leveled and shimmed behind the hinge and strike sides until it's plumb in both directions. This is the step that decides whether the finished door swings true.
- 4
Hang and gap the slab
The slab goes on the hinges and we adjust shims until the reveal is consistent, with a nickel-width gap that doesn't pinch at the top or scrape at the bottom. A planed edge or relieved high spot fixes a slab that's swollen tight.
- 5
Align the latch and strike
We mark where the latch actually meets the frame and set the strike plate so the bolt drops cleanly into the pocket. On a settled house the strike hole often needs filing or relocating a hair.
- 6
Adjust swing and finish
We confirm the door stays put when left half open instead of drifting, then check the weatherstrip or sweep on an exterior door. A light push should latch it without a slam.
What a pro checks
- A door that swings open or closed on its own usually means the frame leans; the hinge side needs to be reset truly plumb.
- Replacing one short hinge screw with a 3-inch screw that bites the wall framing lifts most sagging interior doors.
- Humidity swells wood doors in summer, so a slab that sticks seasonally may only need a high spot eased, not a full re-hang.
- An exterior door also has to seal, so the sweep at the bottom and the weatherstrip around the jamb matter as much as the swing.
- Painting or sealing all six edges of a wood slab, including the top and bottom, slows moisture swelling far better than coating only the faces.
- A pre-hung unit comes with its own frame and is often the cleaner fix for a damaged or out-of-square opening than reusing the old jamb.
Let AZ Smart Fix handle it
Skip the hassle — our licensed, insured pros do this for you, done right the first time. Book online in minutes.
Frequently asked questions
My door only sticks in the summer. What's going on?
That's classic seasonal swelling. Wood absorbs moisture in humid months and expands just enough to bind against the frame. Often a small amount of material removed from the high spot, plus sealing the bare edge, solves it without replacing anything.
What's the difference between a slab door and a pre-hung door?
A slab is just the door panel, hung on an existing frame using the current hinges and bore holes. A pre-hung door comes already mounted in its own frame, which is the better choice when the old jamb is damaged or out of square.
Why won't my door stay latched?
Almost always the strike plate no longer lines up with the latch, usually because the door or frame has shifted over time. Re-aligning or moving the strike so the bolt seats in the pocket fixes it in most cases.
How much does door repair or installation cost?
It depends on whether it's an adjustment, a slab swap, or a full pre-hung install, plus the door type and any frame work. The most accurate way to find out is to book a visit or request a quote.
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