Think about how your customers find you. Someone in Hinckley has a blocked drain on a Saturday morning. They pull out their phone, type "drain unblocking near me," and start scrolling. If your website loads slowly, looks broken on their screen, or has tiny text they cannot read, they are gone in seconds. They will call the next tradesman whose site actually works.
Mobile responsive design means your website automatically adjusts to fit any screen — phones, tablets, laptops, and desktops. The layout shifts, images resize, and buttons become easy to tap. Your phone number becomes a click-to-call button. Everything just works.
Google also prioritises mobile-friendly websites in search results. If your site is not responsive, you are fighting an uphill battle to rank for searches in Earl Shilton, Barwell, Burbage, and anywhere else you operate.