Boiler Maintenance & Troubleshooting Tips for Waukesha County

Vincent Plumbing
Nov 12, 2025
3 min read

Updated: Dec 4, 2025

Hydronic System Waukesha

Heating System with pumps and multiple zones

From the Heating Professionals at Vincent Plumbing & Heating

When the temperatures drop in Wisconsin, your boiler works hard to keep your home comfortable. Routine maintenance can prevent mid-winter breakdowns and extend the life of your system.

At Vincent Plumbing, our family-run business has provided trusted boiler service for over 30 years throughout Mukwonago, Waukesha, Muskego, Brookfield, and Waterford. Here’s what you should know to keep your heating system running safely and efficiently.

1. Check Boiler Pressure and Temperature

Your system’s pressure should typically read between 12–20 PSI when cool. If pressure is too low, there could be trapped air or an expansion tank issue. If it’s too high, a relief valve might be failing. If you’re unsure, call Vincent Plumbing — we’ll inspect and adjust your system safely.

2. Listen for Unusual Noises

Boilers should run quietly. Pay attention to any strange sounds:

Banging or knocking = air trapped in lines.
Whining or humming = circulator pump may be wearing out.
Gurgling or bubbling = sediment buildup or low water.

Addressing these early prevents more serious problems.

3. Inspect Circulator Pumps and Zone Valves

Each heating zone should operate independently. If one area stays cold, a zone valve or pump could be malfunctioning. Our technicians can test each zone, replace faulty parts, and rebalance the system for even heating.

4. Annual Boiler Tune-Up

Just like your water heater, your boiler benefits from professional service at least once per year. During a tune-up, Vincent Plumbing will:

Check gas and safety controls
Flush sediment from the system
Inspect pump seals and wiring
Verify proper combustion and venting
Ensure all zones are heating correctly

Regular service keeps your boiler efficient, safe, and ready for Wisconsin’s coldest months.

5. Warning Signs You Shouldn’t Ignore

Call for service if you notice:

Water leaks near your boiler
Rust or discoloration around fittings
Uneven heating between rooms
Boiler shutting off unexpectedly

Our licensed, insured plumbers can quickly diagnose and repair your boiler system — we guarantee our work.

6. Schedule Preventative Maintenance Now

Don’t wait until it’s freezing outside. A simple maintenance visit can prevent expensive repairs and lower your energy bills.

Understanding Hydronic Systems

Hydronic heating systems are efficient and effective. They use water to transfer heat throughout your home. This method provides consistent warmth and can be more energy-efficient than traditional heating systems.

Benefits of Hydronic Heating

Energy Efficiency: Hydronic systems can reduce energy costs by using less energy to heat your home.
Comfort: They provide even heat distribution, eliminating cold spots.
Quiet Operation: Unlike forced air systems, hydronic systems operate quietly.
Versatility: They can be used for both heating and cooling, depending on the system design.

Common Hydronic System Issues

While hydronic systems are reliable, they can encounter issues. Here are some common problems to watch for:

Air in the System: This can cause noise and reduce efficiency. Bleeding the system can help.
Leaking Pipes: Regular inspections can catch leaks early, preventing water damage.
Thermostat Issues: If your system isn’t responding to temperature changes, the thermostat may need replacement.

Maintaining Your Hydronic System

To keep your hydronic system running smoothly, consider these tips:

Regular Inspections: Schedule annual check-ups with a professional to catch issues early.
Flush the System: Flushing removes sediment buildup that can affect performance.
Check the Expansion Tank: Ensure it’s functioning correctly to maintain system pressure.