My home has an oil burning heating system. Recently, the waterpipes and radiators have been making an excessive amount of noise, especially during start-up. Do I have a serious plumbing problem? Thank you.

You probably need to bleed the radiators and check the expansion tank and operating pressure.

My home has an oil burning heating system. Recently, the waterpipes and radiators have been making an excessive amount of noise, especially during start-up. Do I have a serious plumbing problem? Thank you.
Would think you have a airlock somewhere, try running your taps or if that does not work, ring a couple of plumbers for free advice, see if they suggest the same thing. Take care, love and peace anne x