Replacing cylinders is sometimes a necessity, some examples of when you should really consider changing locks:
-Moved into a new home
-Lost house keys
-No anti snap security lock
If you’re not sure what type or how good your cylinder is, send me a photo.
I can advise whether they’re good locks protecting your home, or not so good.
With burglaries on the rise, the price for a new cylinder is worth it for the peace of mind alone…
Never use WD40 to lubricate your lock if it’s stiff, this will only make the situation worse.