Keep it clean
It sounds obvious, but the cleaner your staircase is the easier it will be to maintain over the years. Try and dust your handrails, newel posts and spindles each week using something soft like a cloth. You can dampen it a little depending on your surface to make sure you get everything but remember to not leave any pools of water behind.
Vacuum the stairs only using a soft-ended nozzle – this way you’ll get into any cracks without scraping anything. If not carpeted, you could even use a soft broom to clear any debris from your staircase, moving from the top down to the bottom.
Give it the right treatment
If you’ve gone with a bare wood staircase, then oils, waxes, varnishes and paint can be your friend to keep your staircase looking in tip-top condition. Make sure you give right treatment for the right wood.