Changing HDB BTO room door lock

Finding a problem with your lock, and need our services in changing the HDB BTO room door lock? Or just needing some quick advice for your BTO room door lock maintenance? No worries – you’ve just arrived at the right place!

In this article, we will discuss the most commonly seen issues that require a a BTO room door lock replacement. We will be sharing some useful tips that can go a long way in caring for your new and existing HDB BTO room door locks.

When do I need to change my HDB BTO room door lock?

According to the feedback that we’ve received from our customers, they will usually consider replacing the lock when encountering these issues. Here they are, as described below.

1) The lock is missing, I need to change it.

Changing HDB room door lock

When this unit was returned to the owner, they realized that the entire lock was completely missing. We re-installed the full lockset, along with the side latch, as shown above. The last panel shows the completed installation, along with the 3 new keys provided.

2) My BTO room door lock is spoilt!

Replacement of BTO room door lock

The latch of the old HDB BTO room door lock did not retract when the handle was pressed down. Removing the lock took immense effort and time, as it had also rusted badly and became stuck. We managed to replace the lock successfully, and advised the customer on how to maintain the lock with WD40. Owing to its anti-rust qualities, WD40 is excellent for lock maintenance.

Image of a newly changed BTO room door lock in a HDB flat

3) My BTO room door lock seems really stiff, why is that?

Photos in a grid that show how the lock looked like previously, the rusted insides of the lock and the latch, and the newly replaced lock

This lock was giving our customer a headache, as it was getting more difficult to press down. “I have to use much more force,” they revealed. After removing it, we discovered that it had rusted rapidly. This is quite surprising, because the lock wasn’t in an environment subjected to high humidity. Rustiness is much more common for toilet door locks, because of their constant exposure to a humid environment.

After we changed the lock – we again advised spraying WD40. This helps to keep the lock working smoothly and rust-free, if there are no other existing issues.

4) I lost my keys for my BTO room door lock

An image of a newly replaced BTO room door lock on a wooden door. A key is left inserted into the keyhole, with the remaining 2 keys dangling from a keyring attached to all 3 keys.

This customer from Pasir Ris had shifted into their new unit. The previous owner did not hand them the keys for this particular room door, so they opted to change the lock.


The left image panel, marked ‘Before,’ shows the previous BTO room door lock before replacement. The right image panel, marked ‘After’, shows the newly replaced lock with a key left inserted into the keyhole. The two other keys are left dangling in a keyring, which is also attached to the inserted key.

For this BTO room door lock replacement at Punggol, the customer wanted to replace it as they realised that the keys were lost. This particular lock model has the key part at the top, and the handles located below instead.


Replacement of BTO room door lock

In this scenario at Toa Payoh, our customer realised that the keys for the lock had been misplaced. This was a pressing problem for them. They revealed that they were moving out of the rented room soon, and had to return the keys to the landlord.

Unfortunately the door was warped, and sound damping sponges were also used on the inside of the door frame. This can cause the door to become misaligned, and the lock to deteriorate over time owing to the increased pressure on the lock. If these issues are not rectified, they would result in the newly replaced lock spoiling much faster than usual.

While replacing the lock, we also altered the door frame hole to accommodate for the warping, and removed the small sponges to allow the door to close properly.

Tips in caring for your HDB BTO room door lock

1) Avoid using sound damping stickers or sponges on the inside of the door frame

We advise our customers not to put stickers or sponges on the inside of the door frame to minimise the noise of the closing door. These doors are already measured beforehand to fit the door frame exactly. Doing so will put unwanted pressure on the latch, and cause the lock to spoil quickly.

2) Use WD-40 for maintaining and cleaning the lock

WD40 can be sprayed into the keyhole, to prevent dust and dirt from accumulating. This is particularly important, since clogged and mouldy keyholes are the #1 culprit in causing broken keys. WD40 can also be sprayed into the side latch area, in order to keep the area lubricated and rust-free. Press down the handle to make the side latch retract first, before spraying WD40 into the latch area. Then press and release the handles repeatedly a few times, to allow the WD40 to work through the lock.

I’m ok with proceeding, how do I get in touch with you?

We can be contacted directly at this form, or via WhatsApp and call at 8812 7499. Do note our operating hours on our main page! If we are contacted outside our opening hours, we will get in touch with you when we reopen.

What else do you do?

We also handle other lock types for HDB flats and private housing, such as the round doorknob, main door deadbolt lockset and cylinder lock.

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This blog post was originally published in November 2018 and has been updated on 12 November 2023 to reflect new information and insights that we have received from our customers.

Changing HDB BTO room door lock
Article Name
Changing HDB BTO room door lock
Changing a HDB BTO room door lock for a customer, who discovered that the lock was missing from the room door, after the unit was handed back.
Publisher Name
Vincent Locksmith
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