Deadlocks Adelaide

Deadlocks add extra locking support for suitable front doors, shops, and business entries. Lock Masters can help assess whether a deadlock should be repaired, rekeyed, replaced, or upgraded.

Extra locking pointAdds a second lock beyond the latch.
Higher securityStrong bolt lock-up for higher security.
Commercial useCommon for shops and business entries.

Rated 5.0 on Google

Compare deadlocks Get a free quote

Deadlock installation
Deadlock installation
Deadlock installation in Adelaide for new deadlocks fitting.
Deadlock replacement
Deadlock replacement
Deadlock replacement in Adelaide for worn deadlocks.
Deadlock repair
Deadlock repair
Deadlock repair in Adelaide for faulty deadlocks.
Deadlock rekeying
Deadlock rekeying
Deadlock rekeying in Adelaide for key changes.

LOCK OPTIONS

Deadlock options

Compare standard and keyless deadlock options below. Select a model to add it to your request and we will confirm door compatibility, keying and next steps before quoting.

Deadlock

Extra lock support for home and business doors.

Finish

Satin Steel

Keyless Deadlock

Deadlock with easy inside operation.

Finish

Satin Steel

What are deadlocks used for?

Deadlocks are used when a compatible external door needs a dedicated keyed locking point in addition to everyday latch hardware.

They are practical for front doors, shops and business entries where stronger door security is needed.

Strong security lock

Adds a strong deadlock for higher door security.

Commercial doors

For shops, offices and business entries that need strong locking.

Entry doors

For suitable front and external entry doors.

How to choose the right deadlock

Deadlock selection depends on the door setup, existing cut-outs, keying needs, inside operation and whether a standard or keyless model is suitable.

Check the door setup

Confirm backset, cut-outs and frame fit before choosing.

Choose the function

Compare standard and keyless deadlock options.

Plan the keying

Check keyed-alike options for compatible cylinders.

Common reasons to replace deadlocks

Most requests to replace deadlocks begin with worn hardware, lost keys, changed access needs, or a lock that no longer works reliably.

Loose or failing deadlock
Replace when deadlock repair is not practical.
Security upgrade
Add stronger keyed locking where latch hardware is not enough.
Change access function
Move to a standard or keyless deadlock where suitable.
Hardware upgrade
Upgrade worn hardware before sale or renovation.

How it works

Setup checked

Door and position assessed.

Option confirmed

Function and finish confirmed.

Ready to use

Deadlock tested and working.

Call (08) 7092 3666 Request deadlock service

Rated 5.0 on GoogleRated 5.0 on Google

146 reviewsVerified

146 Google reviewsVerified and synced automatically

Anders Bogdanowicz

Aug 2026

Excellent service, solved my issue quickly

Tanya Kaliszewski

Aug 2026

Arrived quickly and fixed our lock efficiently. Works better than before. Thank you very much!

T M

Aug 2026

Quick phone back and 2 mins to unlock the door. Will use again and recommend

Read all 146 reviews on Google

Service area

Across AdelaideAll of metro Adelaide

Type your suburb or postcode and we'll confirm arrival time.

Adelaide CBD North Adelaide Glenelg Norwood Unley Prospect Henley Beach Mawson Lakes

Browse all Adelaide service areas

Frequently asked questions

Quick answers about deadlock compatibility, repair, replacement, keying and access functions.

Call (08) 7092 3666

Can you install or replace deadlocks?

Yes. We can install or replace suitable deadlocks after checking the door, frame, existing cut-outs, keying needs and daily use.

Can you repair an existing deadlock?

Yes. We can assess a stiff, loose, damaged or unreliable deadlock and explain whether repair, rekeying or replacement is the better option.

Which deadlock type do I need?

The right option depends on the door setup, keying needs, inside operation and whether a standard or keyless deadlock is suitable.

Can a deadlock be keyed to match other locks?

Often, yes, if the deadlock and cylinder setup are compatible. We can check keyed-alike options before confirming the hardware.

Do you service Adelaide CBD for deadlocks?

Yes. Lock Masters services Adelaide CBD and other metro Adelaide suburbs for help with deadlocks. We confirm the address, lock type, access point, and timing before recommending repair, replacement, installation, or another practical option.

Can you help with deadlocks across metro Adelaide?

Yes. We provide deadlocks support across metro Adelaide, including compatibility checks, repair, replacement, installation, and quote guidance where suitable. Use the service area search on this page or call to confirm coverage for your suburb.

RELATED LOCK OPTIONS