Boiler Furnace Services

• Loud Banging on Startup ("Dirty Sock" or "Boom"): Delayed gas ignition, a dangerous issue that needs immediate repair.
• Yellow Burner Flame (Gas Units): Indicates improper combustion and carbon monoxide risk. Shut off the system and call immediately.
• Cold Air Blowing from Vents: Could be a cracked heat exchanger, which is a serious safety hazard requiring unit replacement.

Common BOILER Problems (Hydronic/Radiant Heat):

• No Heat but Circulator Pump Hums: A seized or failing pump, or a closed zone valve.
• Cold Radiators or Baseboards: Often caused by air in the lines (needs bleeding) or a failed circulator pump.
• Rumbling or Kettling Noises: Loud bangs from steam boilers or rumbles from hot water boilers are classic signs of mineral/sediment buildup.
• Leaking or Dripping Water: Found at the pressure relief valve, pump seals, or pipe connections. Can indicate high pressure or corrosion.
• Low System Pressure Gauge Reading: Needs water added to the system; persistent low pressure indicates a leak.

Our Complete Boiler & Furnace Services

For Furnaces (Gas, Oil, Electric):

• Heat Exchanger Crack Inspection & Safety Testing
• Blower Motor, Belt, and Capacitor Replacement
• Electronic Ignition & Flame Sensor Repair
• Gas Valve & Combustion Chamber Service
• Full System Tune-Up & Efficiency Optimization

For Boilers (Gas, Oil, Steam, Hot Water):

• Circulator Pump & Zone Valve Replacement
• Pressure Relief Valve & Expansion Tank Service
• Aquastat Control & Low-Water Cutoff Repair
• System Flushing to Remove Sludge & Scale
• Radiator & Baseboard Bleeding/Venting

For Both Systems:

• Carbon Monoxide & Draft Testing (Critical for safety)
• Thermostat & Control Wiring Diagnostics
• Chimney & Vent Inspection to ensure safe exhaust
• Annual Preventive Maintenance to avoid breakdowns

The Critical Decision: Repair or Replace Your Boiler or Furnace?

We give you the honest facts to make the right choice for your home and budget. Consider REPAIR if:

• The unit is under 10-12 years old.
• The repair is minor (e.g., ignitor, flame sensor, circulator pump).
• It has been reliably maintained and this is its first major issue.

Plan for REPLACEMENT if:

• The system is 15+ years old (furnace) or 20+ years old (boiler).
• You face a major failure like a cracked heat exchanger (furnace) or a leaking heat exchanger (boiler).
• Repair costs are approaching half the cost of a new, high-efficiency unit.
• Your energy bills keep climbing, and comfort is inconsistent.
• R-22 refrigerant is needed for an older AC coil integrated with the furnace.

Why Choose 551 HVAC for Your Heating System?

• Dual Expertise: We deeply understand the mechanics of both forced-air and hydronic systems. You don't need to find a "boiler guy" or a "furnace guy"—we are both.
• Safety-First Diagnostics: We don't just fix the symptom. We test for hidden dangers like CO leaks, cracked heat exchangers, and venting blockages on every call.
• Efficiency-Focused Solutions: Whether repairing or replacing, we optimize your system to reduce fuel consumption and lower your bills.
• Full-System Perspective: We check how all components work together—from the thermostat to the ductwork or piping—ensuring a complete solution.