I have had same problem with all kettles. I think it depends on area where you live and your water content supply. If you see scale build up on base inside kettle then you need to descale it. I bought a new kettle 7 weeks ago and have had to descale it twice already. Noise gone each time. I blame the water supply yet we are in a soft water area. My Mum who stayed in a different area never had a noisy kettle.
norma, May 2015