McDonnell Plumbing & Heating | Certified HVAC Repair in Princeton, MN

Short-cycling or uneven heating often points to issues like a dirty filter, faulty thermostat, or problems with the ductwork or flame sensor. For Princeton residents, these issues are common, especially with seasonal temperature swings. Our licensed HVAC technicians can diagnose the root cause, whether it's a simple repair or a sign your system needs attention. We'll ensure your furnace runs efficiently to keep your home comfortably warm.

Yes, we are fully licensed (Plumbing Contractor Lic. #PC680918), insured, and bonded in Minnesota. This allows us to handle all aspects of custom plumbing installations for kitchen and bathroom remodels in Princeton. We work with you to design a system that fits your space and update fixtures to match your style, ensuring everything is installed correctly and to code.

We provide repair services for common emergencies like water heater failures, burst pipes, and severe drain clogs. As a local, licensed contractor, our detail-oriented technicians aim to resolve issues correctly on the first visit to minimize disruption to your Princeton home or business. We recommend calling for an assessment so we can address the problem promptly and effectively.