Banging or Booming
Banging at start-up can indicate delayed ignition, where gas builds up before igniting. This is a safety concern—request furnace repair.
Rattling
Rattling often points to loose panels, ductwork, or internal components.
Screeching or Squealing
A high-pitched squeal usually indicates a worn blower motor bearing or a slipping blower belt.
When to Call a Professional
Banging, screeching, or any new noise should be inspected. Request furnace repair.
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Frequently Asked Questions
Request service
Submit a service request and a coordinator will contact you to confirm technician availability. We do not confirm an appointment until availability is verified.
What happens next: A coordinator reviews your request, confirms the service type and location, and contacts you to schedule.
For emergencies: Call (312) 555-HVAC or request emergency service. For a gas leak or carbon monoxide, leave the building and call your gas utility or 911 first.
Request service
Submit a service request and a coordinator will contact you to confirm technician availability. We do not confirm an appointment until availability is verified.