What's actually causing this
Door locks fail when the latch bolt no longer aligns with the strike plate hole, when internal springs weaken, or when the lock cylinder wears out or is damaged.
What you'll need
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- Replacement door knob or deadbolt Shop →
- Phillips screwdriver Shop →
- Graphite lubricant Shop →
- Chisel (for strike plate adjustment) Shop →
Step-by-step fix
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1
Identify the problem
Check if the latch hits the door frame rather than going into the hole (alignment issue), or if the lock turns stiffly (lubrication issue), or if the knob is loose (screw issue).
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2
Lubricate the lock
Spray graphite lubricant into the keyhole and on the latch bolt. Do not use WD-40 — it attracts dust and gums up the mechanism over time.
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3
Adjust the strike plate
Loosen the strike plate screws and shift it to align with the latch. Use a chisel to enlarge the hole if needed.
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4
Replace the lockset
Remove the two screws on the interior knob rose plate. Pull both knobs off. Remove the latch assembly from the door edge. Install the new lockset following manufacturer directions.
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5
Test the lock
Close the door and test the lock from both sides. Ensure the deadbolt extends and retracts fully without resistance.
Door and window contractors in Columbus typically charge $70–125/hr. Window replacement averages $300–800 per window, while entry doors run $800–2,500 installed.
Permits and inspections requirements vary by Columbus. Check with your local building department before starting.
Brick and masonry common. Wood siding on older homes. Asphalt shingles standard. Freeze-thaw causes expansion cracking. Salt from winter de-icing corrodes metal fixtures.
Freeze-thaw cycles in Columbus stress window seals, weatherstripping, and door frames. Check for drafts annually and replace worn weatherstripping before winter.
DIY in Columbus: Columbus's moderate licensing and affordable labor costs make DIY repairs approachable. Winterization and freeze prevention are common homeowner tasks. Very hard water management is a typical DIY focus. Growing metro means newer construction is DIY-friendly.
- The lock cylinder is damaged from a break-in attempt.
- The door frame is warped or cracked — the door itself may need replacement.
- You're locked out and don't have a spare key.
- It's a high-security or smart lock with electronic components you're unfamiliar with.
Let Uncle AI diagnose it first.
Describe the problem. Uncle AI asks the right questions and tells you exactly what's broken — and whether you should fix it yourself or call someone in Columbus.
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