Digital Locks in a Rented Home: Can You Install One, and What Happens at Move-Out?

Digital locks are one of the most common tenant upgrades we see, and one of the most common handover arguments. The lock itself is rarely the problem. The trouble is the hole cut into the door, the door closer that was taken off and never refitted, the landlord who now has no working key, or a "we'll sort it out later" agreement that nobody wrote down. Here is how to install one without risking your deposit, and how to hand the unit back cleanly.

Can a tenant install a digital lock in a rented home?

Most Singapore residential agreements contain two clauses that apply here: a ban on alterations without written consent, and a reinstatement clause requiring the unit to be returned in its original condition, fair wear and tear excepted. A digital lock touches both. Before you buy anything, get the landlord to confirm four points in writing: which lock (brand and model), who pays, whether the original lock must be refitted at the end, and how the landlord will get access during the tenancy. Our guide to tenant alterations and landlord consent has wording you can adapt.

Keep the original lockset, keys and screws in a labelled bag. In our experience, a missing original lock is the single biggest reason a simple lock reinstatement turns into a deposit deduction.

What are the fire-safety rules for digital locks on HDB and condo main doors?

Residential fire doors in Singapore are typically rated 30 or 60 minutes. You can check yours on the serial label near the hinges or on the door frame; if there is no label, SCDF advises asking HDB for a public flat, or the MCST for a condo. SCDF lists only three bodies that currently issue Certificates of Conformity for digital locksets: Element Testing Services, Setsco Services and TÜV SÜD PSB. Ask the supplier to show the certificate and check the brand and model match the lock being installed.

One more HDB rule matters at handover. HDB states that every fire-rated entrance door in an HDB flat comes with a door closer, a safety device that should not be removed. Installers sometimes take the closer off to fit a bulky lock body. If it is missing when you move out, expect the landlord to ask for it to be refitted. Condo owners should also check the MCST by-laws, since some developments control the look of main doors facing common corridors; see our note on MCST permits for reinstatement works.

How much does a digital lock cost, and what does reinstatement cost?

Advertised retail and installer prices compiled from PropertyGuru, Women's Weekly, MoneySmart and Shopee guides and listings as at October 2026. Prices vary by brand and door type; always get a written quote.

Check the warranty terms before choosing an installer. Several brands void the warranty unless an approved contractor fits the lock, which matters if the landlord is going to inherit it. Budget the reinstatement at the same time as the installation: the cost of taking the lock off and making the door good is part of the true price of the upgrade.

Rim lock or mortise lock: which is easier to reinstate?

For a tenant, that difference is decisive. A surface-mounted lock comes off in under an hour and leaves a handful of screw holes that can be filled and touched up. A mortise conversion is close to permanent. On a fire-rated door, cutting a bigger pocket or adding holes for an uncertified lock can also compromise the door's fire rating, and a replacement fire door is not a quick fix. If you want a mortise lock in a rented unit, agree in writing that the landlord will keep it, or choose another model.

Do you have to remove a digital lock when the tenancy ends?

There are three realistic outcomes. The landlord keeps the lock as a fixture, usually free, sometimes with a small contribution from the landlord. The tenant takes the lock and refits the original. Or the parties agree a sum off the deposit and the landlord arranges the work. Any of these is fine; the dispute comes when nobody decided. A lock screwed to the door is generally treated as a fixture, which is why written terms matter; our explainer on fixtures vs fittings covers the grey areas.

What does a clean digital lock handover look like?

1. Reset the access list. Remove all user fingerprints, PINs, RFID cards and app users, then do a factory reset if the model supports it.
2. Hand over the master code in person. Let the landlord or agent set their own admin PIN on the day, so no old code survives.
3. Return the override keys. Most locks have mechanical emergency keys. Count them against the installation invoice; see our guide to lost keys and access cards at move-out.
4. Fit new batteries. A lock that dies a week after handover is a bad first impression for the next tenant.
5. Pass on the paperwork. Manual, warranty card, installer contact and, for a fire door, the Certificate of Conformity.
6. Photograph the door. Both faces, the edge and the closer, with a timestamp, for your handover record.

Can the landlord deduct lock damage from the deposit?

Deductions should put the landlord back where they were, not upgrade the door. Charging a tenant for a brand-new premium door because one screw hole was left is betterment, and it is the kind of claim that gets reduced if it goes to the Small Claims Tribunals. On the other hand, a fire door that can no longer close or latch properly is a genuine safety defect, and the landlord is entitled to have it fixed properly. Our guide on fair wear and tear vs damage explains where the line usually falls, and how to get your full deposit back covers the rest of the handover.