Boiler Maintenance & Tune-Up Service in Worth, IL

We begin with a comprehensive visual inspection of your boiler, examining the combustion chamber, heat exchanger, burner assembly, piping connections, and structural condition. We look for signs of corrosion, leaks, rust stains, or component wear. We remove the burner and thoroughly clean it of soot and debris that restricts fuel flow and combustion efficiency. We clean the heat exchanger passages where combustion heat transfers to circulating water. A clean burner and heat exchanger restore fuel efficiency and heat output dramatically.

• We visually inspect the boiler exterior, piping, connections, and structural integrity
• We examine the combustion chamber for soot, debris, or corrosion
• We remove and carefully clean the burner to remove accumulated soot
• We clean heat exchanger tubes to restore heat transfer efficiency
• We check for signs of leaks, water stains, or previous water damage
• We inspect the expansion tank exterior for corrosion or rust
• We document the system's overall condition in your maintenance report

We check your boiler's operating pressure (should run 15–30 PSI depending on design) and verify it remains stable throughout heating cycles. We test the temperature relief valve by slightly opening it to confirm it responds to pressure and closes cleanly without leaking. We test the pressure relief valve to confirm it opens at the correct setpoint. We verify all safety interlocks function properly—the gas valve shuts off correctly, and the burner ignition system fires reliably. These safety systems protect against overpressure and gas hazards.

• We measure and record boiler pressure at startup and during steady-state operation
• We test pressure relief valve opening pressure and verify proper closure
• We test temperature relief valve response and operation
• We check all pressure gauges and thermometers for accuracy
• We verify the expansion tank pre-charge pressure (if applicable)
• We test gas valve function and confirm safe gas shutoff
• We verify all electrical safety interlocks and limit switches
• We document all pressure and temperature readings in your maintenance record

We perform a comprehensive combustion test using calibrated equipment. We measure flue gas temperature, carbon dioxide output, excess air, and combustion efficiency percentage. We compare results against manufacturer specifications to confirm your burner is firing correctly and efficiently. If combustion efficiency has drifted (common after running all season), we make minor adjustments to restore peak performance. Proper combustion means less fuel waste, lower heating bills, and reduced carbon monoxide risk.

• We perform stack temperature analysis to measure heat loss up the flue
• We measure flue gas carbon dioxide (CO2) to verify complete combustion
• We calculate combustion efficiency percentage and compare against specifications
• We measure oxygen content to ensure proper air-fuel ratio
• We verify carbon monoxide (CO) output is at safe, undetectable levels
• We make minor burner adjustments if efficiency has drifted
• We document combustion test results and efficiency rating in your report

We verify your circulation pump is operating normally—listening for unusual noises and measuring current draw to confirm motor function. We check for air trapped in circulation lines and bleed vents if needed. We test your thermostat's response to temperature changes and confirm it signals the boiler reliably. We verify all controls respond to setpoint changes and heating demand. Smooth circulation and responsive controls ensure even heat delivery and efficient operation.

• We inspect the circulation pump for leaks, noise, or reduced flow
• We measure circulation pump amperage to confirm normal motor operation
• We bleed air from circulation lines and vent valves as needed
• We test thermostat calibration against an independent temperature measurement
• We verify thermostat switches heating on and off at the correct temperature
• We confirm all electrical controls and heating zone valves operate properly
• We test the sequence of operations through a complete heating cycle

After service is complete, we run your boiler through multiple heating cycles under full load. We verify all radiators heat evenly, pressure remains stable, and no new leaks appear. We provide a written maintenance report detailing our inspection findings, test results, efficiency rating, and any recommendations for future maintenance. If we identify components showing early wear—a circulation pump that's aging, corroded piping sections, or a relief valve that's drifting—we'll recommend monitoring or scheduling repair before failure occurs. You leave with confidence that your heating is ready for winter.

• We run the boiler through multiple complete heating cycles
• We verify all radiators heat evenly and respond to thermostat changes
• We confirm system pressure remains stable throughout heating cycles
• We listen for unusual noises indicating wear or loose components
• We test all controls one final time for proper response
• We provide a detailed written maintenance report with all inspection and test findings
• We discuss any early-wear components and recommend monitoring or future service
• We answer all questions about your boiler's condition and operation