Do you offer same-day door lock service in Singapore?

Yes, subject to technician availability in your area. Send a WhatsApp photo of the lock and door so the correct cylinder or lockset is brought on the first visit. Final price is confirmed on site before work starts.

Handyman Guide

Door Lock Broken? When to Repair vs When to Replace Completely

Q: Can I change my own HDB main door lock?

You can for a like-for-like cylinder swap if confident with the mortise body, but main door mortise locks come in different sizes and backsets. A mismatch leaves the door open overnight, so most people use a technician who brings matched parts.

Q: My key snapped inside the lock — what now?

Stop turning it so the broken half doesn't seize. If it sticks out, gentle pliers may work; if flush, a technician uses a key extractor and usually re-keys or replaces the cylinder. Extraction plus re-key is typically S$80–S$150, confirmed on site.

Quick answer: repair or replace a broken door lock

A stuck key, loose handle or jammed latch can sometimes be repaired if the lock body is intact. Replace the lock when the cylinder is worn, the latch no longer retracts cleanly, the digital lock fails repeatedly or security is compromised.

Jammed lock help

A stuck key or a spinning handle doesn't always mean a new lock — sometimes a S$5 part fixes it. This guide shows you how to tell repair from replace in minutes, what each job costs in Singapore, and exactly when to stop fiddling and call a technician.

Signs You Can Repair It

If the key is simply hard to turn, a spray of graphite lubricant (not WD-40) might fix it. Loose handles can often be fixed by tightening the internal screws.

Signs You Must Replace It

If the lock cylinder is completely jammed, the key has broken off inside, or the internal spring mechanism is snapped, repairing it is futile. You must replace the lock cylinder or the entire handle.

Cost of Replacement

Replacing a standard HDB room door cylindrical lock costs around $50-$80. Main door mortise locks are more complex and range from $120 to $200.

WhatsApp a Photo of Your Lock for a Quote

Know Your Lock Type Before You Decide

In Singapore homes the "repair vs replace" answer depends almost entirely on which lock you have. Identify yours below first — getting this wrong means paying for a full lockset when a S$5 part would have done, or replacing a cheap part on a lock that's actually beyond saving.

HDB / condo room door — cylindrical (tubular) knob or lever lock. Cheap, modular and easy to swap. If only the cylinder is bad, the latch and strike plate usually stay. These are the most repair-friendly.
HDB / condo main door — mortise lock. The whole mechanism sits inside a pocket cut into the door edge. More moving parts, multiple deadbolt throws, and the body is sized to that specific door. Repairs are fiddlier and replacements pricier.
Gate locks (the metal grille gate). Often a separate rim lock or padlock-style cylinder exposed to corridor humidity, so rust and stiff keys are common here.
Digital / smart locks. A flat battery is the No.1 "dead lock" call in Singapore — try fresh AA batteries or the emergency 9V terminal/mechanical key override before assuming failure. If the PCB or motor is gone, it is a replace, not a repair.

Symptom → Cause → Fix (Quick Diagnosis)

Use this to triage before you call anyone. Many issues are mechanical wear from Singapore's heat and humidity, not a fully dead lock.

Symptom	Likely Cause	Repair or Replace?
Key turns but door won't latch	Misaligned strike plate (door dropped/swelled)	Repair — realign plate / hinge adjust
Handle droops or spins freely	Loose set screws or worn spindle	Repair — tighten / replace spindle
Key sticks / grinds	Dirt or dry pins in cylinder	Repair — graphite/PTFE lube, not WD-40
Key snapped inside	Worn key + forced turn	Usually replace cylinder
Deadbolt won't throw at all	Snapped internal spring/cam	Replace mechanism

When to DIY vs When to Call a Pro

Reasonable DIY: tightening a loose lever, lubricating a stiff key barrel, or swapping AA batteries in a digital lock. These need only a screwdriver and ten minutes.

Call a pro when: a key has snapped inside the cylinder, the main door is locked shut with you outside, the door has dropped and no longer aligns, or a mortise body needs to be cut out and re-sized. Forcing a jammed main-door lock often damages the door leaf itself, which is far more expensive than the lock. A handyman or locksmith carries the extractor tools, matched cylinders and the patience to open the door without drilling it.

If you are locked out right now, do not keep jiggling a broken key — that pushes fragments deeper. Stop, and message a technician with a photo of the lock face so the right replacement cylinder can be brought on the first trip. Send a photo and our team brings the matched cylinder on the first trip — see our Singapore handyman service for same-day lock help, with the price confirmed before any work starts.

Indicative Door Lock Pricing (Singapore)

Prices below are indicative ranges and confirmed on site after the technician sees the lock and door. They typically include the standard part; premium digital or branded mortise sets cost more.

Job	Indicative Price
Lubricate / adjust / tighten handle	from S$60 (callout)
Room door cylindrical lock change	typically S$60–S$90
Main door mortise lock replacement	typically S$120–S$200
Extract broken key + re-key cylinder	typically S$80–S$150
Digital lock supply & install	from S$250 (model-dependent)

See the full breakdown on our handyman cost guide, or browse every service on the FixMove price index — all ranges are indicative and confirmed on site.

Frequently Asked Questions

Can I change my own HDB main door lock?

You can if it is a like-for-like cylinder swap and you are confident with the mortise body. The risk is buying the wrong size or backset — main door mortise locks come in different dimensions, and a mismatch leaves you with an open door overnight. For the main door most people prefer a technician who brings matched parts.

My key snapped inside the lock — what now?

Stop turning it immediately so the broken half doesn't seize. If part of the key sticks out, gentle pliers may work. If it is flush, a technician uses a key extractor and will usually re-key or replace the cylinder. Extraction plus re-key is typically S$80–S$150, confirmed on site.

Is graphite or WD-40 better for a stiff lock?

Use dry graphite or a PTFE-based lock lubricant. WD-40 is a solvent that attracts dust over time and can leave a sticky residue inside the cylinder, making the problem worse in Singapore's humid, dusty corridors.

Do you offer same-day lock service?

Yes, subject to technician availability in your area. Send a WhatsApp photo of the lock face and door so the right cylinder or lockset is brought on the first visit. Final price is confirmed on site before any work starts.