R.J. O'Neil Inc.

R.J. O’Neil Inc. is an HVAC contractor, Construction company, and Plumber serving Aurora and the Fox Valley with integrated repair, installation, and maintenance for homes and businesses—one call for heating, cooling, plumbing, and mechanical build-outs. As an HVAC contractor, schedule preseason tune-ups and ask about high-efficiency systems, smart thermostats, and available utility rebates to cut energy costs. As a Plumber, request upfront pricing, a clear service window, and parts-and-labor warranties for work like water heater replacements, sump pumps, leak repairs, and drain cleaning. For Construction company projects such as renovations or tenant build-outs, ask for a written scope and timeline, confirm permits and a single project manager, and consider bundling HVAC and plumbing upgrades to streamline schedules and reduce overall cost.