Replacing a light switch might seem straightforward, but it can be extremely hazardous if not done properly. Electrical work is intricate and prone to errors without the right expertise, potentially leading to electric shocks and fires. If you're unsure about installing a light switch yourself, it's wise to hire a professional from Keep Smiling Plumbing, Electric, Heating & Cooling. They have the necessary training, skills, and experience to ensure the job is done safely and correctly.