Heating Repair Service

• Strange, New Noises: Loud banging (often called "kettling" in boilers), screeching, grinding, or rattling from the unit.
• Frequent, Short Cycling: The furnace or boiler turns on for a few minutes, shuts off, then immediately tries to restart.
• Yellow Burner Flame (Gas Systems): A healthy flame is blue. A flickering yellow flame indicates improper combustion and a potential carbon monoxide risk—shut the system off and call us immediately.
• Pilot Light Won't Stay Lit: If the pilot on your older furnace or boiler keeps going out, it’s a sign of a faulty thermocouple or gas valve issue.
• Rotten Egg Smell (Gas Systems): This is the odorant added to natural gas. If you smell it, evacuate the house and call the gas company from outside, then call us.
• Visible Soot or Rust Flakes: Around the burner assembly or on surfaces near vents/boilers, indicating inefficient combustion or corrosion.
• Sudden Spike in Heating Bills: A sign your system is working much harder due to a hidden inefficiency or failure.

For All Systems:

• Carbon Monoxide Safety Testing: We check for dangerous CO leaks as part of every gas system repair.
• Thermostat & Electrical Diagnostics: Fixing faulty wiring, connections, and control signals.
• Duct & Venting Inspection: Ensuring proper airflow and safe exhaust for combustion gases.

The 551 HVAC Emergency Response Promise

When your heat is out, you need more than just a technician—you need a solution.

• 24/7/365 Dispatch: We have teams on rotation for nights, weekends, and holidays.
• We Come Prepared: Our service trucks are fully stocked with the most common furnace, boiler, and heat pump parts to fix most issues on the first trip.
• Safety is Our First Priority: We will never compromise on safety. If we discover a hazardous condition (like a cracked heat exchanger), we will explain it clearly and shut the system down for your protection.
• Honest Repair vs. Replacement Advice: If your system is beyond cost-effective repair, we’ll provide a clear, no-pressure estimate for a new installation. Our goal is your long-term comfort and safety.