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The past decade has seen a greater exploration of the low frequency radio sky. For explosive transients like supernovae, low radio frequencies remain unexplored and present exciting possibilities on understanding absorption mechanisms at play. In the radio, we observe synchrotron emission from the interaction of the supernova ejecta with its surrounding circumstellar material. In this talk, I provide an introduction to low-frequency radio behaviour of supernovae and supernova remnants, which is the focus of my PhD thesis. I will discuss our studies of individual supernovae and remnants in the nearby galaxies M51, M31, M100 and NGC 891. We focus on LOw Frequency ARray (LOFAR) data in this work, combining this with data from other radio telescopes like the Very Large Array (VLA). Such studies help us bridge the gap between our current understanding of various objects in the radio sky and what instruments such as the Square Kilometre Array will bring with it in the future.
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