Storm door locks and screen door locks are exterior locks which are used repetitively and are subject to inclement weather. Having purchased a quality storm or screen door for you home and now you find the lock is failing. The ideal solution is to change it out. You can find an appropriate style and color of lock at your nearest Bunnings. Rather than changing a perfectly working door you can simply change out the lock. First up to check out is the alignment of the door. It may need a simple adjustment, if the lock latch is not lining up. Otherwise, the internal mechanisms of the lock may have broken. If you are handy a DIY project will be easy to do. Moreover, the new lock will usually come with instruction in pamphlet or online instructions. 

Furthermore, this may be a great opportunity to switch out your lock to one of the new smart lock styles. These new locks offer better ease of access and control over whom is at the property. Essentially, upgrading your home security!