Someone with a leaking pipe or a power cut does not compare much: they look for a nearby technician and call the first one they trust. A page named after your service and area, with clear call and WhatsApp buttons and real reviews, makes you that first call.
Most time lost in this trade is not in the work itself but in wasted trips: a technician who went without the part, or arrived to find a different fault. When the customer sends a photo and description with the request, the technician arrives prepared and finishes first time.
Once you have several technicians, organisation decides profit. A schedule showing who is free and nearby, a status for every job from request to payment, and customer approval of the price before work begins — that closes the door on disputes and keeps every job accounted for.