Professional heating, cooling & air quality services serving St. Marys and surrounding communities in Ohio. NATE-certified, 24/7 emergency response.
From emergency repair to planned installation, we deliver expert HVAC service across every specialty.
Full HVAC installation requires coordination of heating equipment, cooling components, ductwork design, and control systems to deliver efficient comfort at rated capacity. Our technicians perform Manual J and Manual D calculations, size equipment to match your structure, and commission the system to manufacturer standards.
Upgrading to a smart thermostat enables precise scheduling, remote access, and energy usage reporting that can reduce heating and cooling costs by 10 to 15 percent. Professional installation ensures correct wiring to your HVAC system, including C-wire verification and multi-stage equipment compatibility.
An annual air conditioning tune-up catches refrigerant leaks, worn contactor points, and degraded fan motors before they cascade into compressor damage. Technicians measure temperature differential across the coil, verify amp draws, and confirm proper subcooling to protect your investment.
Installing a mini-split system correctly requires precise wall penetration, vacuum-sealed refrigerant lines, and proper electrical isolation between indoor and outdoor units. Our technicians size each zone independently using BTU calculations to ensure consistent temperature control across every room.
A dryer that takes multiple cycles to dry clothes or feels excessively hot to the touch signals a restricted vent line. Technicians clear lint accumulation using rotary brush systems and compressed air, then verify exhaust velocity meets manufacturer specifications for safe, efficient operation.
Maintaining safe and efficient boiler operation requires precise attention to water chemistry, flue gas temperatures, and combustion efficiency. Professional repair addresses leaking heat exchangers, malfunctioning aquastats, air-bound radiators, and ignition system failures to restore rated AFUE output.
When your heat pump struggles to maintain temperature or runs continuously without reaching setpoint, the problem often traces to refrigerant leaks, failing capacitors, or degraded reversing valves. Skilled technicians restore rated HSPF and SEER performance through systematic component-level troubleshooting.
Scheduling professional furnace maintenance each fall ensures your heating system delivers full BTU output without wasting fuel. Technicians inspect the inducer motor, verify pressure switch operation, calibrate gas valve output, and clean the burner assembly for reliable cold-weather performance.
When your AC blows warm air, short cycles, or fails to start, the problem may involve a failed compressor, low refrigerant charge, frozen evaporator coil, or faulty control board. Professional repair identifies the exact fault and restores rated SEER efficiency through precise, manufacturer-guided procedures.
Selecting the right heat pump means matching BTU capacity to your structure while accounting for climate zone, insulation levels, and existing ductwork. Professional installation ensures proper refrigerant charge, correct defrost timing, and verified auxiliary heat staging for demanding winter conditions.
Clean ductwork directly impacts the efficiency of your HVAC system by reducing static pressure and allowing unrestricted airflow to every register. Our technicians inspect for microbial growth, seal access points after service, and verify airflow improvements with anemometer readings post-cleaning.
Comprehensive HVAC inspections cover thermostat operation, ductwork condition, refrigerant levels, electrical connections, and combustion safety. This detailed assessment identifies efficiency losses, safety hazards, and components nearing end of service life before they result in costly emergency repairs.
Ductless mini-split systems require specialized diagnostics for inverter-driven compressors, electronic expansion valves, and multi-zone communication boards. Our technicians resolve issues including refrigerant leaks at flare connections, blinking error codes, frozen evaporator coils, and failing fan motors.
Leaking and disconnected ductwork wastes up to 30 percent of conditioned air before it reaches living spaces, forcing your HVAC system to work harder and driving up energy costs. Professional duct repair seals joints, replaces damaged sections, and restores proper static pressure balance.
HVAC emergencies do not follow business hours, and a failed system in extreme temperatures puts your household at risk. Our technicians carry common replacement parts including capacitors, contactors, ignitors, and fan motors to resolve most failures in a single visit and restore comfort fast.
Every HVAC system in St. Marys faces its own challenges — from Ohio temperature extremes to the building styles and insulation levels found in this city. KIC Refrigeration brings local knowledge that out-of-state contractors do not have. We know which heat pump models perform best in your climate zone, which duct layouts suit older homes, and how to size systems accurately for St. Marys conditions.
When you call KIC Refrigeration for heating or cooling service in St. Marys, OH, you get a team that genuinely knows the area. We understand local mechanical codes, the most effective equipment for Ohio temperature swings, and how to get the job done efficiently. No learning curve, no oversized equipment, no guesswork — just properly engineered comfort solutions.
Built on NATE certification, transparent pricing, and a guarantee that we stand behind.
We carry full general liability and workers compensation coverage on every job. Our HVAC license is current in every state we operate, and we pull permits when local codes require them. Your property and our crew are fully protected on every visit.
Every technician on our team holds current NATE certification — the highest standard in the HVAC industry for installation and service competency. You get a technician who has passed rigorous exams on system diagnostics, refrigerant handling, and equipment commissioning.
You receive a written estimate with itemized parts and labor costs before any work begins, and the final invoice matches. No diagnostic fees hidden in the repair bill, no surprise surcharges — just honest pricing you can verify and trust.
HVAC failures do not wait for business hours and neither do we. Our emergency technicians are dispatched around the clock — nights, weekends, and holidays — so you never go without heat in winter or cooling in the peak of summer.
If the repair does not solve the problem or the installation does not perform to specification, we come back and make it right at no additional cost. Our guarantee covers workmanship, parts, and system performance because half-finished work is not in our vocabulary.
Answers to the heating and cooling questions our customers ask most often.
Absolutely. Modern high-efficiency HVAC equipment can reduce heating and cooling costs by 20 to 40 percent compared to systems installed 15 or more years ago. The improvement comes from advances in compressor technology, variable-speed motors, and smarter controls. In St. Marys, upgrading from a 10-SEER air conditioner to a 16-SEER2 or higher unit delivers substantial monthly savings — the higher the SEER2 rating, the less electricity consumed per BTU of cooling. On the heating side, replacing an 80-percent AFUE furnace with a 96-percent modulating furnace means that 16 cents of every heating dollar previously wasted up the flue now heats your home. Heat pumps offer even greater efficiency, delivering 2 to 4 times more heating energy than they consume in electricity. KIC Refrigeration calculates projected energy savings for any equipment upgrade so you can see the return on investment before making a decision.
Most HVAC installations, major equipment replacements, and significant ductwork modifications in St. Marys require a mechanical permit from the local building department. This applies to furnace and air conditioner replacements, heat pump installations, boiler swaps, and new ductless mini split systems. Minor repairs like part replacements and refrigerant recharges typically do not require permits. KIC Refrigeration handles all permitting, code compliance documentation, and scheduling of final inspections on your behalf — you do not need to visit any government office or coordinate with inspectors. Permits exist to ensure your system is installed safely and to code, which protects your home and preserves your equipment warranty. Unpermitted work can create liability issues and complicate future home sales. We ensure every project meets current Ohio mechanical codes and International Mechanical Code standards.
Heat pumps offer both heating and cooling from a single outdoor unit, making them significantly more energy-efficient than furnaces for moderate climates. A heat pump does not generate heat — it transfers it from outdoor air, which requires far less energy than burning gas or running electric resistance coils. Modern cold-climate heat pumps with variable-speed inverter compressors operate effectively down to minus 15 degrees Fahrenheit, making them viable in most Ohio locations. For St. Marys homeowners with natural gas access, a dual-fuel system — heat pump for primary heating paired with a gas furnace for backup during extreme cold — often provides the best balance of efficiency and performance. Heat pumps also qualify for federal tax credits under the Inflation Reduction Act. KIC Refrigeration evaluates your specific climate zone, insulation levels, and utility rates to determine whether a heat pump, furnace, or dual-fuel system is the smartest investment.
KIC Refrigeration installs and services all major HVAC equipment manufacturers in St. Marys including Carrier, Lennox, Trane, Daikin, Goodman, Rheem, York, Bryant, American Standard, Mitsubishi, and Fujitsu. For ductless mini split systems, we specialize in Mitsubishi, Daikin, and Fujitsu units which are the market leaders in inverter-driven technology. We are not locked into a single manufacturer or distributor, which means our recommendations are based entirely on what best fits your home size, budget, efficiency goals, and existing infrastructure. Each brand offers different warranty structures, SEER2 ratings, and feature sets — from basic single-stage units to premium variable-speed communicating systems. Our NATE-certified technicians install every unit strictly to manufacturer specifications and register all warranties on your behalf.
A comprehensive HVAC inspection from KIC Refrigeration in St. Marys covers every critical component of your heating and cooling system. Our NATE-certified technician evaluates the heat exchanger for cracks using a combustion analyzer, checks thermostat calibration and wiring, tests all electrical connections for tightness and amperage draw, measures refrigerant pressures against manufacturer specifications, clears the condensate drain line, inspects the blower motor and fan assembly for wear, checks the air filter and evaporator coil condition, tests safety controls including high-limit switches and flame sensors, performs carbon monoxide testing on gas-burning equipment, and measures supply and return airflow temperatures to verify the system is producing its rated BTU output. We also visually inspect accessible ductwork for leaks, damage, and insulation condition. You receive a written report with all findings, photos of any concerns, and prioritized recommendations.
We recommend professional HVAC maintenance at least twice per year for St. Marys homeowners — once in spring to prepare your cooling system and once in fall to prepare your heating system. Each tune-up includes a comprehensive multi-point inspection covering filter replacement, refrigerant level verification, electrical connection tightening, thermostat calibration, condensate drain clearing, and performance testing. For the heating check, technicians also inspect the heat exchanger for cracks, test safety switches, and verify gas pressure on furnaces and boilers. Routine maintenance catches small problems — like a failing capacitor or a dirty flame sensor — before they cause complete system failures. Industry data shows that well-maintained HVAC systems last 15 to 20 years compared to 10 to 12 years for neglected equipment, and they operate 15 to 25 percent more efficiently throughout their lifespan.
Our reputation is built on honest service, skilled technicians, and systems that perform.
"KIC Refrigeration replaced our old window units with a mini split system. Night and day difference in comfort and noise level. Wish we had done it sooner."
"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."
"KIC Refrigeration cleaned our dryer vent and also noticed our exhaust duct was damaged. Fixed both on the same visit. That kind of attention to detail matters."
We also serve these nearby communities with the same certified HVAC expertise.