A pair of knee pads will take the strain off your knee joints any time you've got to hit the deck in order to work. There's plenty of reasons why a knee pad insert or wrap around pair will make a huge difference to both your personal comfort and your knee's ability to last as long as you'll need them.
Nothing seems to rip the knee joint up more than constantly having to kneel down, using them to bear your weight whilst working on a given task. Protecting your knee joints makes good sense all round - better to prevent causing an issue than to pay for it afterwards - which is often the more costly avenue to take.
The five best industrial knee pads are featured below. They're all well rated, popular with others tradesmen and home improvement enthusiasts, as well a high on quality and value for money.