Trusted boiler repair for Lexington properties. Same-day service available, transparent pricing, and a workmanship guarantee.
Boiler systems serving Lexington, SC homes require specialized knowledge of water chemistry, expansion tank pressure, flue gas analysis, and aquastat sequencing. KIC Refrigeration delivers professional boiler repair that addresses kettling, air-bound radiators, leaking seals, and control board failures with the expertise your hydronic system demands.
Whether you own a single-family home or manage a commercial property in Lexington, professional boiler repair is essential for maintaining safe, efficient indoor climate control. KIC Refrigeration has completed hundreds of boiler repair projects across South Carolina, and our Lexington customers benefit from that depth of experience, our fully stocked service vehicles, and our ability to respond the same day for urgent situations.
We understand that boiler repair can feel like a major decision. That is why KIC Refrigeration makes the process simple for Lexington property owners — free evaluations, transparent pricing, flexible scheduling, and a dedicated point of contact from diagnosis through completion. Your satisfaction is guaranteed.
From initial contact to final verification — here is how we handle boiler repair.
Our Lexington technician begins with a comprehensive safety inspection — testing the pressure relief valve, low-water cutoff, high-limit control, gas valve operation, and flue draft. We check boiler pressure, inspect the expansion tank, and look for signs of corrosion, leaks, and scale buildup.
We use a combustion analyzer to measure flue gas temperature, CO levels, O2 percentage, and stack draft. These readings tell us if the burner is firing efficiently or if the heat exchanger, burner assembly, or gas valve needs attention.
KIC Refrigeration repairs boilers in Lexington, SC with the correct parts and procedures. We match components to your specific boiler model and BTU input rating, torque all gas connections to spec, leak-test with gas detector soap, and verify the repair restores proper operation and efficiency.
Our Lexington crew pressurizes the boiler system to 15 to 20 PSI, inspects every fitting and valve for leaks, bleeds air from all zone circuits, and runs the boiler through a full cycle — verifying ignition, flame signal, circulator operation, and temperature rise to confirm the repair.
Transparent answers about boiler repair from our certified technicians.
Boiler repair in Lexington typically costs $200 to $700 for common component failures like thermocouples, aquastats, zone valves, circulator pumps, and expansion tanks. Ignition control module or gas valve replacement runs $300 to $800 depending on the boiler manufacturer. Heat exchanger replacement is the most expensive repair at $1,500 to $4,000, varying by boiler type — cast iron sectional, copper fin tube, or stainless steel condensing — and BTU input rating. KIC Refrigeration provides a detailed written estimate with itemized parts and labor costs before beginning any boiler repair at your Lexington property so you can make an informed decision.
Boiler pressure loss indicates a leak somewhere in the sealed system. The most common causes are a failed expansion tank bladder that allows air into the system, leaking zone valve packings, corroded pipe fittings or baseboard connections, a weeping pressure relief valve, or a pinhole leak in the heat exchanger itself. A healthy hydronic system holds 12 to 18 PSI when cold and rises to 18 to 25 PSI at operating temperature. If the pressure gauge drops below 10 PSI, the low-water cutoff should shut the burner down to prevent damage. KIC Refrigeration pressure-tests the system, inspects all fittings and valves, and locates the leak at your Lexington home so we can repair it permanently.
Most boiler repairs in Lexington take 1 to 3 hours during a single service visit. Circulator pump and zone valve replacements are typically completed in 1.5 to 2 hours including system draining and refilling. Aquastat and control board replacements take 1 to 2 hours. Gas valve replacement takes 1 to 2 hours plus a combustion analysis to verify proper operation. Heat exchanger replacement is the most time-intensive job at 4 to 8 hours depending on whether the boiler has cast iron sections or a sealed stainless steel exchanger. KIC Refrigeration provides an accurate time estimate before starting work at your Lexington property so you can plan accordingly.
Warning signs that your boiler needs professional attention include radiators or baseboard that heat unevenly or stay cold in certain zones, banging or kettling noises caused by scale buildup or air in the system, the pressure gauge reading below 12 PSI or above 25 PSI, visible water leaks at fittings, valves, or the boiler itself, a pilot light or electronic ignition that will not stay lit, error codes flashing on the control board, and a noticeable increase in gas bills without a change in thermostat settings. Any of these symptoms warrants a professional inspection. KIC Refrigeration diagnoses boiler problems in Lexington quickly using combustion analyzers, pressure testing, and electrical diagnostics to identify the exact failure.
Hear from property owners who chose us for their heating and cooling needs.
"Mini split repair was done right the first time. The outdoor unit had a refrigerant leak and they found it, fixed it, and recharged the system same day."
"AC repair was fast and fairly priced. The compressor was failing and they had the part on the truck. Done in about ninety minutes."
"KIC Refrigeration repaired our air ducts after a renovation left them disconnected in the attic. Airflow is so much better now in every room."