Back Door and Side Door Lock Replacement Service

We provide lock replacement and on-site installation services for back doors and side doors of residences, properties, and other legally used premises. This service is suitable for situations where back door locks are aging, keys are lost, locks are inconvenient to use, or customers wish to update their existing locks.

Customers first submit their service request and pay a deposit. We will confirm the project details based on the provided door type, lock condition, and service address, and schedule a suitable on-site appointment. Upon arrival, our staff will inspect the door, existing lock, and installation location, and determine the disassembly and installation method based on the actual situation.

If the back door or side door has special door structure, keyhole size differences, or other installation conditions, we will discuss the specific solution with the customer after on-site confirmation. After installation, we will check the lock’s fixation and the door’s basic opening and closing status.