How to Replace Door Hinges: Step-by-Step Guide for Any Door
Replacing door hinges takes about 30–60 minutes and requires only basic tools. Whether a hinge is bent, rusted, stripped, or you’re upgrading to a new finish, swapping it out is a straightforward DIY job any homeowner can tackle without calling a contractor. This guide walks you through the exact process — from removing the old hardware to getting the new hinge seated perfectly so the door swings and latches without friction.
What You’ll Need
| Tools | Materials |
|---|---|
| Flathead screwdriver | Replacement hinges (same size as originals) |
| Phillips head screwdriver (or cordless drill) | Longer screws (3-inch for stripped holes) |
| Hammer | Wood filler or toothpicks + wood glue (for stripped holes) |
| Chisel (optional) | Finishing nails (optional, for hinge mortise repairs) |
| Utility knife | Sandpaper (120-grit, optional) |
| Tape measure | Painter’s tape (to hold door during swap) |
Hinge sizing tip: Standard interior door hinges are 3.5 inches. Exterior doors typically use 4-inch hinges. Measure your existing hinge before purchasing replacements — length, width, and corner radius all need to match for a flush fit in the existing mortise.
Safety Precautions
- Support the door before removing all hinges. A full door can weigh 50–100 lbs. Never remove more than one hinge at a time unless the door is braced or you have a helper holding it.
- Watch for sharp hinge edges. Old hinges — especially painted or rusted ones — can have sharp burrs. Wear work gloves when handling them.
- Check for lead paint if your home was built before 1978. If scraping or sanding is needed around the mortise, test first or use an N-100 respirator.
- Secure pets and kids before removing a door — an unsupported door can fall suddenly if you lose your grip.
How to Replace Door Hinges: Step-by-Step
Step 1 — Match Your Replacement Hinges Before You Start
Remove one screw from an existing hinge and bring the hinge (or its measurements) to the hardware store. You need matching dimensions: height, width, corner radius (square vs. rounded), and finish. Buying mismatched hinges forces you to chisel new mortises or use shims — both avoidable with 5 minutes of prep. Popular finishes include satin nickel, oil-rubbed bronze, matte black, and polished brass. All three hinges on a door should match.
Step 2 — Open the Door and Wedge or Brace It
Swing the door open about 90 degrees and wedge a folded towel, doorstop, or piece of scrap wood tightly under the door’s leading edge. This keeps it stable while you work without needing a helper for every single step. For heavy exterior doors, use a door jack or have a second person support it. Never let a door hang on only one hinge — the weight will strip the remaining screws and damage the frame.
Step 3 — Remove the Old Hinge (One at a Time)
Start with the middle hinge if there are three — this is the safest approach since the top and bottom hinges continue to bear the door’s weight. Remove all screws from the leaf attached to the door first, then the leaf attached to the frame. Tap a flathead screwdriver under a stuck hinge leaf to pop it free if paint has sealed it in. Keep the old screws — you may need them for size comparison. Replace one hinge at a time from start to finish before moving to the next.
Step 4 — Inspect the Mortise and Fix Any Stripped Screw Holes
Look at the mortise (the recessed pocket cut into the door and frame). It should be clean and the depth should match your new hinge’s leaf thickness. If screw holes are stripped — meaning the screw spins without biting — fix them now: squirt a small amount of wood glue into the hole, push in 2–3 wooden toothpicks, let dry for 30 minutes, then snap or trim them flush. Alternatively, use 3-inch screws that reach the framing stud behind the door jamb — this creates the strongest possible hold and is the professional method for repairing a damaged door frame.
Step 5 — Set the New Hinge Into the Mortise
Place the new hinge into the mortise. It should sit flush — not proud of the surface and not sunken. If the mortise was cut for a slightly different hinge size, use a sharp chisel to widen it slightly or add a thin cardboard shim behind the hinge leaf to raise it. A hinge that sits even 1/32 of an inch proud will cause the door to bind. Hold the hinge in position with a piece of painter’s tape while you drive the first screw to keep it from shifting.
Step 6 — Drive the Screws — Door Leaf First
Attach the door-side leaf first, then the frame-side leaf. Drive screws by hand or with a drill on a low torque setting — overtightening strips the holes immediately. Make sure every screw head sits flush with the hinge face. A screw head that protrudes even slightly prevents the hinge from closing fully, causing the door to stick along the latch edge. If one screw feels loose as you tighten it, swap it for a longer screw right away rather than tightening harder. See our guide on how to adjust door hinges if you need to fine-tune alignment after installation.
Step 7 — Test the Door and Repeat for Remaining Hinges
Remove the wedge and slowly swing the door open and closed before replacing the next hinge. It should move smoothly with no binding or scraping. If it binds at the top or bottom, a hinge may be slightly out of alignment — see the troubleshooting section below. Once the first hinge is solid and the door swings cleanly, repeat Steps 3–6 for the remaining hinges. Always finish all hinges on the same door in one session so the door is never left with mismatched old and new hardware carrying unequal loads.
Step 8 — Final Check: Latching, Swing, and Gaps
Close the door and check that the latch bolt hits the strike plate cleanly without you having to lift or force the door. Check the gap along all four edges — it should be even (typically 1/8 inch on the sides and top, 1/4 to 3/8 inch at the bottom). Uneven gaps after a hinge replacement are usually a sign of a hinge that’s slightly misaligned or sitting too proud in the mortise. Refer to our article on how to fix a door that won’t latch if the bolt isn’t engaging the strike plate correctly.
Pro Tips and Common Mistakes
- Buy one extra hinge. Hardware stores frequently discontinue finishes. Buy a spare now so a future damaged hinge is an easy swap, not a full-set replacement project.
- Don’t paint over new hinges. Paint fills the hinge knuckle and causes squeaking, stiffness, and eventual binding. If painting the door frame, mask the hinges with tape first.
- Tighten screws by hand first. Always start every screw by hand — power-driving straight into wood without a pilot hole can split the mortise edge on older door frames.
- Match the corner radius. Hinges come in square-corner and round-corner versions. Installing a square-corner hinge in a round-corner mortise leaves visible gaps at the corners. It’s a detail most guides skip but homeowners always notice.
- Check bearing type. For very heavy or frequently used doors, consider a ball-bearing hinge instead of a plain-bearing one. Ball-bearing hinges last significantly longer under high-cycle use, such as an exterior entry door used multiple times daily.
- Don’t over-chisel. The single most common mistake is cutting the mortise too deep. If a hinge leaf sinks below flush, the door will swing toward the frame — known as “hinge bind.” Shim it up with a piece of thin cardboard cut to the leaf’s shape.
Troubleshooting: Problems After Hinge Replacement
| Problem | Likely Cause | Fix |
|---|---|---|
| Door swings open on its own | Hinge mortise too deep (hinge bind) | Add thin cardboard shim behind hinge leaf |
| Door swings closed on its own | Hinge mortise too shallow (hinge proud) | Chisel mortise slightly deeper or use a hinge-setting chisel |
| Door scrapes the floor after hinge swap | Hinge misalignment — door shifted down | Re-seat the top hinge; check that frame-side mortise is correct depth |
| Screws keep loosening | Holes too large for screw gauge | Use longer 3-inch screws into the stud, or repair with toothpick-and-glue method |
| Door won’t close fully | Hinge leaf sitting proud of surface | Deepen mortise with chisel; check every screw head is flush |
| Squeaking immediately after install | Paint contamination or dry knuckle | Remove hinge pin, apply petroleum jelly or silicone lubricant, reinstall |
For sticking or rubbing issues that persist after hinge replacement, our guide on how to fix a rubbing door walks through planing and shimming options in detail. If the entire door frame is damaged, you may need to look at door frame repair before new hinges will hold properly.
Frequently Asked Questions
Do I need to remove the door from the frame to replace hinges?
No — in most cases you can replace door hinges with the door still hanging. Replace one hinge at a time and keep the door braced so the remaining hinges bear the load safely. You only need to remove the door entirely if all three hinges are being replaced at once or if you need to access a badly damaged mortise.
Can I replace just one hinge, or do all three need to match?
You can replace a single hinge, but all three should match in finish and style for appearance. More importantly, they must all be the same dimensions so the door hangs level. Mixing a 3.5-inch hinge with a 4-inch hinge on the same door will throw off alignment and cause binding.
What size hinges do interior doors use versus exterior doors?
Standard interior doors use 3.5 x 3.5 inch hinges. Most exterior and heavier doors use 4 x 4 inch hinges, and some heavy-duty commercial exterior doors step up to 4.5 x 4.5 inches. Always measure your existing hinge rather than guessing — the difference between sizes is enough to matter for fit.
My hinge screws keep stripping out — what’s the permanent fix?
The most reliable permanent fix is to use 3-inch screws that bypass the door jamb and thread directly into the structural stud behind it. This gives you 3 inches of solid wood to bite into instead of the 3/4-inch door jamb. For the door-side hinge leaf, fill stripped holes with toothpicks and wood glue, let cure overnight, and re-drive the original screws.
How do I know if I need to replace hinges or just adjust them?
If the hinge itself is physically bent, cracked, rusted through, or has a worn pin that causes sagging, replacement is the right call. If the door is sagging or misaligned but the hinge metal looks intact, adjustment is usually enough — tightening screws, using longer screws, or bending the hinge leaf slightly. Our guide on how to adjust door hinges covers that process in full.
Conclusion
Replacing door hinges is one of the most rewarding small repairs you can do — it’s fast, affordable, and the results are immediately obvious. The key steps are matching your replacement hinges precisely, fixing any stripped holes before installing new hardware, and replacing one hinge at a time so the door never loses support. With the right prep, most homeowners finish all three hinges on a single door in under an hour.
If you’re doing a broader door overhaul, check out our guide on how to replace a door handle to match your new hardware, or read about installing a new door knob if you’re updating the whole set at once. For ongoing maintenance, our door maintenance tips guide shows you how to keep every hinge, lock, and seal in top condition year-round.
