Hi my name is Edwin Swiffix Professionals Local highly skilled experience specialist Professional installation Using precision mortise machine to achieve workmanship in ur expensive timber doors tools arsenal easily cost 2-10 times more than normal installer We do not outsource ur job to cheap labour so ur installation is in safe hands I have installed more than 5000 digital locks and able to handle difficult cut that other can’t achieve (Micro adjustment that allows it door to close without being shaky which normal tools can’t achieve . Take a photo of ur door and lock bought And we can schedule an installation together $80 for rim lock dead bolt and latch $120 for small mortise lock $110-150 for big mortise lock Any additional plate is chargeable if needed Example some seller from china didn’t provide rebater and strike plate for singapore doors we also provide essential set up of digital locks and test with u to make sure it’s is safe and secure entering We will test and ensure smooth opening and closing door We will also help to adjust ur door closer to ensure smooth closing ( provided ur closer is working well ) We will provide basic touch up of holes /patty if need to we are authorise reseller for lockin and Aqara products so offer the lowest price u can find out there