Boiler Repair & Maintenance

Trusted Hydronic Heating Services

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We're RJ's Heating, Cooling & Water Heaters

Professional Boiler Repair Services

When the winter cold hits, your boiler needs to deliver dependable, even heat throughout your home. If your radiators are cold, your system is making strange noises, or your energy bills are rising without explanation, it's time to call the experts at RJ's Heating, Cooling & Water Heaters. We provide fast, accurate, and affordable boiler repair and maintenance services for residential and light commercial systems throughout the Northwest Chicago suburbs.

Our licensed technicians have over 20 years of hands-on experience working with gas, steam, and hot water boilers from leading brands like Burnham and Weil-McLain. Whether you need an emergency repair, a routine inspection, or help restoring comfort to an old radiant heating system, RJ's is ready to help.

Family-Owned and Operated
Family-Owned and Operated
Over 20 Years of Experience
Over 20 Years of Experience
We offer 24-hour Emergency Service
We offer 24-hour Emergency Service
Schedule Service

Common Boiler Issues We Repair

Boilers are known for their durability, but even the best systems require occasional service. Ignoring small issues can lead to costly damage, so it's best to address them early.

Signs your boiler needs repair:

  • No heat or hot water
  • Radiators or baseboards are cold
  • Gurgling, banging, or hissing sounds
  • Frequent pressure drops
  • Water leaking from the boiler
  • Pilot light keeps going out
  • Unresponsive thermostat
  • Uneven heating throughout the home
  • Error codes on newer condensing units

If you're experiencing any of these symptoms, RJ's offers prompt, professional boiler repair—with honest diagnostics and transparent pricing.

Our Boiler Repair Services

We provide full-system diagnostics and repairs for a wide range of boiler issues, from simple thermostat fixes to more complex hydronic component replacements.

Our boiler repair services include:

  • Pressure valve and expansion tank replacement
  • Circulator pump repair or replacement
  • Thermostat and zone control troubleshooting
  • Airlock removal and bleeding radiators
  • Ignition and pilot assembly repairs
  • Heat exchanger inspection and cleaning
  • Flue and venting inspections
  • Leak detection and pipe sealing
  • Combustion safety checks
  • Control board and sensor repairs

Whether your system is old-school cast iron or a modern condensing boiler, we'll get it back up and running quickly—with lasting results.

$50 OFF

Repairs of at least $150

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