A door that will not close properly is more than an annoyance. An exterior door that does not latch is a security risk and lets heat escape; an interior door that swings open on its own or rubs the frame wears out fast; and a commercial door that will not close can leave a business unsecured overnight. The good news is that almost every “door won’t close” problem comes down to a short list of causes. This guide walks through the ten most common ones we see in Toronto homes and businesses, how to tell which one you have, what you can safely try yourself, and when to call a professional.
First, figure out what the door is actually doing
“Won’t close” can mean several different things, and each points to different causes:
- It rubs or sticks before it reaches the frame.
- It closes but will not latch — the latch hits the strike plate instead of going in.
- It swings open by itself after you close it.
- It springs back as if something is pushing it.
- A commercial door stops short or slams instead of closing gently.
Watch the door closely and note where it catches. That observation alone often tells you the cause.
The 10 most common causes
1. Loose hinge screws
The most common cause by far. When the screws in the top hinge loosen, the door tilts and the latch side drops, rubbing the frame or missing the strike. Tighten every hinge screw. If a screw just spins, the hole is stripped; a longer screw into the wall framing usually fixes it. See door hinge repair in Toronto.
2. Worn or bent hinges
Old hinges wear at the knuckles and pins, and heavy doors can bend hinge leaves. Worn hinges let the door sag even when the screws are tight, and replacement is the fix. For heavy doors, heavy-duty or ball-bearing hinges last much longer. See door frame and hinge support.
3. Misaligned strike plate
If the door closes against the frame but will not latch, look at the strike plate. Scratch marks above or below the opening show which way the latch is missing. Small misalignments can be corrected by adjusting or filing the strike; bigger ones mean the door has dropped and the hinges need attention first.
4. Swelling from humidity
Wood doors and frames absorb moisture in humid Toronto summers and during wet fall weather. A door that sticks only in certain seasons is usually swelling. Planing a door that is only temporarily swollen can leave a gap later, so it is worth finding out whether the problem is swelling or sagging before removing wood. If you do plane a door, seal the bare edge afterwards.
5. A frame that has shifted
Houses settle, and frost moves foundations slightly. A frame that is out of square makes the door rub in one corner and leave a gap in another. Minor shifts can be corrected with shims and hinge adjustments; a badly distorted or damaged frame may need repair. See exterior door frame repair.
6. Paint build-up
Years of paint on the door edge and frame stops add up. Doors that were painted without being removed often stick at the stops or the latch. Careful stripping of the excess paint along the edges and stops usually solves it.
7. Weatherstripping that is too thick
New or replaced weatherstripping can be too thick, especially on the hinge side, so the door springs back when you try to close it. The right profile compresses to seal without pushing the door open. If the door “bounces” after new seals were installed, this is the likely cause.
8. Threshold or floor problems
A raised threshold, a new floor, a thick mat or a heaved concrete step can make the bottom of the door drag. Adjustable thresholds can often be lowered; otherwise the door may need to be trimmed at the bottom.
9. Latch or lock problems
Sometimes the door closes fine but the latch itself is sticky, broken or worn, so it does not extend and catch. A failing latch or lockset needs replacing. If the deadbolt will not slide in, the door has usually shifted — see lock change and repair.
10. Door closer problems (commercial and some residential)
On commercial doors, the closer controls how the door closes. A closer out of adjustment, leaking oil or set too weak will leave the door short of latching or let it slam. Closers need seasonal adjustment because cold weather changes their behaviour. See door closer repairs in Toronto and business entry door repair.
Quick diagnosis checklist
- Rubs at the top latch corner? Loose or worn top hinge.
- Rubs at the bottom? Sagging hinges, threshold or floor.
- Closes but won’t latch? Strike misalignment or latch failure.
- Sticks only in summer? Swelling.
- Springs back open? Thick weatherstripping, hinge binding or paint build-up.
- Swings open by itself? Door or frame out of plumb.
- Commercial door slams or stops short? Closer adjustment or failure.
What you can safely try yourself
- Tighten all hinge and strike plate screws.
- Replace one short screw in the top hinge with a long screw into the framing.
- Clean and lubricate the hinges and the latch.
- Check for paint build-up and clean it off carefully.
- Adjust an adjustable threshold.
Avoid planing or cutting a door, removing heavy exterior doors, or adjusting commercial closers unless you know what you are doing — mistakes there are expensive.
When to call a professional
- The door still will not close after tightening the hinges.
- The frame is cracked, rotted or visibly out of square.
- It is a heavy exterior, steel or commercial door.
- The door was forced in a break-in.
- A commercial door with a closer or panic hardware will not latch.
- An exterior door will not lock tonight.
For urgent situations, see emergency door repair and door repair after a break-in.
Repair or replace?
Most closing problems are fixed with adjustments, new hinges, a strike adjustment or a new latch. If the door itself is warped or split, or the frame is rotted, replacement may be the better choice. Our guide on choosing a new front door explains the options, and our door replacement team can advise on site.
Seasonal problems
Toronto’s seasons make door problems come and go. Doors that stick in August and gap in January are reacting to humidity and temperature. For cold-weather issues — drafts, frozen locks, deadbolts that will not line up — read our winter door problems guide. For sliding and patio doors, see patio door repair.
Different doors, different problems
Exterior front and back doors
Exterior doors are heavier and face the weather, so sagging hinges, frame movement and threshold problems are the usual culprits. Because they protect the house, a door that will not latch or lock should be fixed right away rather than “living with it” through the winter.
Interior doors
Interior doors are lighter, but they still sag, swell and pick up paint build-up. A bedroom or bathroom door that swings open or will not stay shut is usually a hinge or strike adjustment — often a quick fix.
French doors and double doors
Pairs of doors depend on both leaves lining up with each other as well as with the frame. If one leaf sags, the astragal or the flush bolts stop lining up and the pair will not close tightly. Adjusting both leaves together is the key.
Sliding and pocket doors
Sliding doors that will not close fully usually have worn rollers, a dirty or damaged track, or a latch that has moved out of alignment. Pocket doors often come off their top track. See patio and sliding door repair.
Commercial doors
Commercial doors add closers, panic hardware and sometimes electric strikes or mag locks. If a fire-rated door will not self-close and latch, it should be fixed promptly, because the building depends on it to hold back smoke and fire. Storefront doors that drag or will not lock usually have worn pivots or hinges. See fire door installations and business door repair.
A simple door maintenance routine
Most closing problems build up slowly, so a few minutes of care twice a year prevents a lot of them:
- Spring: tighten hinge and strike screws, clean and lubricate hinges and latches, check for swelling as humidity rises.
- Fall: check weatherstripping and the threshold, make sure the deadbolt slides easily, and look for rot or rust at the bottom of exterior frames.
- Any time: if a door starts rubbing, dragging or needing a push to latch, deal with it early — a loose hinge left alone can tear out of the frame.
Why fixing it early saves money
A door that does not close properly puts stress on everything around it. Slamming a sagging door to make it latch loosens the hinges further, splits the strike area of the frame and wears out the lock. What starts as a five-minute hinge adjustment can turn into frame repair or a new door if it is ignored for a few seasons. Getting the door checked as soon as it starts to misbehave is almost always the cheapest option.
Door repair across Toronto and the GTA
We fix doors that will not close or latch throughout Toronto, Scarborough, Mississauga, Brampton, Vaughan, Markham, Pickering, Newmarket, Burlington and Hamilton. See also local door repair Toronto, front door repair and commercial doors.
Frequently asked questions
Why won’t my door latch even though it closes?
Usually the latch no longer lines up with the strike plate because the door has dropped from loose or worn hinges, or the strike has shifted. Tightening the hinges or adjusting the strike usually fixes it.
Why does my door stick only in the summer?
Wood doors and frames absorb moisture in humid weather and swell. A door that sticks seasonally is usually swelling rather than sagging.
Can I fix a door that won’t close myself?
Often yes: tightening hinge screws, adding a long screw to the top hinge and cleaning the latch solve many cases. Frame problems, heavy exterior doors and commercial closers are best left to a professional.
Why does my door swing open by itself?
The door or frame is out of plumb, so gravity pulls the door open. Adjusting the hinges or re-hanging the door corrects it.
Why does my commercial door not close all the way?
The door closer is usually out of adjustment, too weak for the door, or leaking. Seasonal adjustment or closer replacement fixes it.
Need your door fixed?
Call Door Repair Toronto at (866) 820-1331 or contact us to book a repair.