Licensed · Permit-Conscious Installation
Boiler Repair
Radiator and boiler system repair for older Chicago homes with hydronic heating.
Quick Answer
Radiators that stay cold while the boiler runs usually point to trapped air or a valve issue rather than a boiler failure.
Cost Drivers
Planning range: $200–$800 depending on scope
- Age and efficiency rating of the existing system
- Whether ductwork modifications are needed
- Permit requirements for full system replacements
- Time of year — emergency winter calls vs. scheduled tune-ups
- Single-zone vs. whole-home system complexity
Homeowner Checklist
- Locate your thermostat model and note any error messages
- Check that your filter has been changed within the last 90 days
- Clear access to the furnace, boiler, or outdoor condenser unit
- Note whether the issue affects the whole home or specific rooms
- Have your system's age or install date ready if known
Best First Step
Use the booking form, describe the symptom in plain language, and note your home type, access details (attic, roof, side-yard), and preferred appointment window. That lets us send the right technician prepared for your exact system.
Common Issues We Fix
Boiler Repair Troubleshooting Guide
"No heat from radiators" — what's usually going on
This is one of the most common calls we get related to boiler repair. Often the root cause is a clogged filter, a tripped safety switch, or a thermostat miscommunication rather than a major mechanical failure. Before calling for service, check your air filter and confirm nothing is blocking the outdoor unit. If the issue persists, a technician can usually diagnose it within the first visit.
"Boiler won't ignite" — what's usually going on
In a Chicago winter or summer, this kind of issue can escalate from an inconvenience to an emergency quickly. If you notice this symptom during extreme weather, don't wait — continuing to run a struggling system can cause secondary damage that turns a repair into a full replacement.
"Leaking water" — what's usually going on
This is one of the most common calls we get related to boiler repair. Often the root cause is a clogged filter, a tripped safety switch, or a thermostat miscommunication rather than a major mechanical failure. Before calling for service, check your air filter and confirm nothing is blocking the outdoor unit. If the issue persists, a technician can usually diagnose it within the first visit.
"Strange banging noises" — what's usually going on
In a Chicago winter or summer, this kind of issue can escalate from an inconvenience to an emergency quickly. If you notice this symptom during extreme weather, don't wait — continuing to run a struggling system can cause secondary damage that turns a repair into a full replacement.
"Pilot light issues" — what's usually going on
This is one of the most common calls we get related to boiler repair. Often the root cause is a clogged filter, a tripped safety switch, or a thermostat miscommunication rather than a major mechanical failure. Before calling for service, check your air filter and confirm nothing is blocking the outdoor unit. If the issue persists, a technician can usually diagnose it within the first visit.
"Uneven heat across rooms" — what's usually going on
In a Chicago winter or summer, this kind of issue can escalate from an inconvenience to an emergency quickly. If you notice this symptom during extreme weather, don't wait — continuing to run a struggling system can cause secondary damage that turns a repair into a full replacement.
This guide is for general orientation only. For a specific diagnosis, book a service visit and one of our licensed technicians will assess your exact system.