For homeowners and property managers who want it done right, Gene Ray Heating & Cooling has been the name Greenwood calls for heating and cooling work since 1976. That is 50 years of service in this community, across every kind of home, commercial building, and property type Johnson County has to offer. We handle the full range of HVAC work: furnace repair, AC service, heat pump installation and repair, ductwork, thermostats, indoor air quality, seasonal maintenance, and emergency calls when the system goes down at the worst possible time. We keep you posted from the first call until your system's running again.
Here's what most people get wrong about their HVAC system: they wait until something breaks to think about it. By then, it's a hot August afternoon with no cool air, or a January night with no heat. Fifty years of working in and around Greenwood has taught us what local homes and buildings need across every season. We have served generations of families, local business owners, and property managers who keep coming back because they know what to expect from us. We stand behind every system we service, and that commitment does not change after the truck pulls away. Work performed by qualified HVAC technicians, every job, every time. We keep your home comfortable in every season.
Some homes need a full system replacement. Others just need a tune-up. We handle both, and everything in between, for residential and commercial customers across the area. Whether you are dealing with a system that has finally given out or a unit that just needs a seasonal check before the weather turns, we can take care of it. Here is a closer look at the core work we do.
Indiana winters are not forgiving, and a furnace or heat pump that is not running right will make a cold house feel colder fast. We diagnose and repair gas and electric furnaces, service and replace heat pumps, and handle emergency no-heat calls when the system goes down overnight or on a weekend. Seasonal heating tune-ups in the fall help catch small problems before they become expensive ones. If your system is aging out and a replacement makes more sense than another repair, we will give you straight answers about your furnace, AC, and ductwork, no surprises.
Central air conditioning carries a heavy load through a Greenwood summer, and even a well-maintained system can run into trouble. We repair and tune up central AC units, diagnose refrigerant issues, and service compressors and blowers that are not performing the way they should. When it is time for a new system, we handle full HVAC installation and replacement, including ductless mini-split systems for spaces where traditional ductwork does not reach. One call, and a technician is on the way.
Comfort problems don't wait, and neither do we, especially when a family is without heat in January or a building has no cooling in the middle of July. We are available for emergency HVAC calls around the clock, seven days a week. No-heat and no-cool situations get priority attention because we know those calls cannot be pushed to next week. We answer when you call. We arrive when we say. We leave it running right.
Don't let a small problem turn into a no-heat night or a no-cool afternoon, and that applies to the parts of your HVAC system that most people overlook. Leaking ductwork, an outdated thermostat, or poor air filtration can make even a new system work harder than it should. We take pride in the HVAC work we leave behind, and that includes the details.
Leaking or damaged ducts are one of the most common reasons a home heats or cools unevenly. We diagnose duct problems, seal and repair leaks that are costing you efficiency, and handle full ductwork installation and replacement when the existing system is beyond repair. Better airflow means a more comfortable home and a system that does not have to run as hard to keep up.
A thermostat that is not reading correctly or communicating with your system properly can cause short-cycling, uneven temperatures, and wasted energy. We replace outdated thermostats, install smart and programmable controls, and troubleshoot thermostat issues that are affecting system performance. An upgrade here is often one of the simplest ways to get more out of an existing HVAC system.
Air filtration and indoor air quality matter year-round, and especially in a climate like ours where homes are sealed up tight through a long winter. We install air filtration and purification systems, whole-home humidifiers to address the dry air that comes with Indiana heating season, and we assess your current setup to identify where improvements will make the biggest difference.
The work is only as good as the people doing it. Every technician we send to your home or building has the training and hands-on experience to handle the job correctly, from a straightforward furnace tune-up to a full system replacement on a commercial property. We do not cut corners on the work, and we do not leave a job until we are confident the system is running the way it should. That standard has not changed in 50 years, and it is not changing now.
For homeowners and property managers who want it done right, we offer the same standard of care for commercial properties that we bring to every residential call. We service office buildings, retail spaces, and multi-unit properties throughout the area, handling rooftop unit repair and replacement, commercial system installation, and scheduled maintenance programs that keep a building's heating and cooling running reliably through every season. Work performed by qualified HVAC technicians means your tenants, employees, and customers stay comfortable, and your equipment stays in better shape longer.
A spring AC tune-up and a fall furnace inspection are two of the most straightforward investments a homeowner or property manager can make. Before the heat of summer arrives, we check refrigerant levels, clean coils, test electrical components, and make sure the system is ready to run efficiently. Before winter sets in, we go through the furnace or heat pump the same way, looking for anything that could become a problem when temperatures drop. Catching a worn part in October costs far less than an emergency call in January. Let us handle the install and the permits.
We provide estimates before work begins, and we explain any additional costs before they happen. No one should be surprised by a bill at the end of a service call, and we make sure you understand what the work involves and what it will cost before we start. Whether it is a repair, a replacement, or a new installation, you get a clear picture of the pricing upfront. Call us to request an estimate and find out what the work actually involves.
We are based in Greenwood and have served Johnson County and the surrounding communities for five decades. Our service area covers Bargersville, Whiteland, New Whiteland, Franklin, Trafalgar, and the south Indianapolis metro, reaching the neighborhoods and properties that make up this part of central Indiana. If you are close enough to call, we are close enough to help.
We serve homeowners, landlords, rental property managers, and light commercial building owners throughout Greenwood and Johnson County. We have worked with families who have been calling us for decades, property managers who need fast and reliable scheduling, and businesses that cannot afford an HVAC system that is down for long. Every customer type gets the same standard of work.
We provide a clear estimate before any work begins, and we explain what is included before we start. If something unexpected comes up during the job, we tell you what it is and what it costs before we address it. The invoice you receive at the end matches what was agreed on.
We have been serving Greenwood and Johnson County since 1976, which puts us at fifty years in this community. That history means we have worked on just about every equipment type, home style, and building configuration the area has to offer. It also means our name has been on every job we have ever done here.
We are based in Greenwood and have been working in these neighborhoods for fifty years. We know the housing stock, the road layouts, and the communities around us, including Bargersville, Whiteland, New Whiteland, Franklin, Trafalgar, and the south Indianapolis metro. That local familiarity helps us schedule efficiently and show up on time.
If a system is not performing the way it should after we have worked on it, we want to know. Call us and we will come back to assess the situation. We stand behind every system we service, and that commitment does not end when the truck pulls away.
We start with a thorough diagnostic so we understand what the system actually needs before recommending any work. We give you straight answers about your furnace, AC, and ductwork with no surprises, and we do not recommend repairs or replacements that are not warranted by what we find. The goal is to fix the real problem, not add to the invoice.
When a job requires permits, we handle them as part of the process. You do not need to track down permits or coordinate with the municipality on your own. We take care of that so the installation is done correctly and documented the way it should be.
Gene Ray Heating & Cooling has been Greenwood's go-to HVAC contractor since 1976. Fifty years of heating and cooling work in Johnson County means we have seen just about every system, every situation, and every kind of job a home or commercial property can throw at us. We handle it all, from a quick repair to a full system replacement, and we do it with the same commitment to getting it right that has kept customers calling us back for generations.
When your system needs attention, call us at (463) 444-9782 to request an estimate or schedule a service call. Call today. Scheduled tomorrow. Comfortable by the weekend.
We handle the full range of residential and commercial heating and cooling work in Greenwood and across Johnson County. Whether you need a same-day repair, a seasonal tune-up, or a complete system replacement, the table below covers what each service includes and who it is best suited for. Use it to find the right starting point, then call us and we will walk you through the rest.
| Service | Scope of Work | Best Suited For | Good to Know |
|---|---|---|---|
| Full System Installation & Replacement | Equipment sizing and selection, Removal of existing system, Installation of new furnace, AC, or heat pump, System startup, testing, and calibration | Homeowners replacing aging or failed equipment or upgrading to a higher-efficiency system | Replacing both heating and cooling units together often saves money on labor and improves system compatibility |
| Thermostat & Smart-Control Installation | Thermostat removal and wiring check, New thermostat or smart-control installation, Programming and schedule setup, System compatibility verification | Homeowners wanting better temperature control or remote access from a phone | A smart thermostat can improve comfort and reduce energy use without replacing the HVAC equipment itself |
| Heating & Furnace Repair | Ignition and heat exchanger inspection, Blower motor and limit switch diagnosis, Burner cleaning and combustion check, Thermostat and control board testing | Households that have lost heat or notice reduced heating output | Catching a furnace problem early in fall avoids emergency calls during the coldest weeks |
| Emergency HVAC Service | Same-day dispatch for no-heat and no-cool calls, Evening and weekend availability, Rapid diagnosis and repair, Temporary comfort solutions when parts must be ordered | Any situation where heating or cooling has failed and cannot wait for a standard appointment | Calling early in the day gives us the best chance of reaching you the same day, even during busy seasons |
| Ductwork Repair & Sealing | Duct leak detection and location, Sealing of gaps, joints, and disconnected sections, Airflow measurement before and after, Insulation check on accessible duct runs | Homes with uneven temperatures, high energy bills, or rooms that never quite reach the set temperature | Leaky ducts can send a significant portion of conditioned air into unconditioned spaces like attics and crawl spaces |
| Heat Pump Installation | Load calculation and equipment sizing, Ducted or ductless system installation, Mini-split installation for additions and individual rooms, Startup, testing, and efficiency verification | Homeowners looking for an efficient single system that handles both heating and cooling | A properly sized heat pump handles a typical Greenwood winter efficiently and eliminates the need for a separate cooling system |
| Heat Pump Repair & Service | Refrigerant and reversing valve check, Defrost cycle and sensor testing, Compressor and coil inspection, Heating and cooling mode verification | Homes using a heat pump as their primary heating and cooling source | A heat pump that struggles in cold weather often has a refrigerant or defrost issue, not a failed unit |
| Furnace & AC System Replacement | Assessment of existing equipment condition, Matched system selection for the home's load, Coordinated removal and installation of both units, Post-installation performance testing | Homeowners whose furnace and AC are both aging or mismatched in efficiency | In Indiana's four-season climate, replacing both units at once avoids a second disruption a year or two later |
| Indoor Air Quality & Air Filtration | Air filtration system selection and installation, Whole-home air purifier installation, Ventilation assessment, Filter upgrade and media replacement | Families dealing with allergies, dust, or concerns about indoor air quality | Upgrading filtration works best when ductwork is sealed and airflow is balanced across the system |
| AC Repair & Service | Diagnostic and fault identification, Refrigerant check and recharge, Capacitor, contactor, and component repair, Airflow and cooling performance testing | Homeowners whose AC is not cooling or has stopped running | Most AC repairs can be completed in a single visit once parts are confirmed on the truck |
| Seasonal Maintenance & Tune-Ups | Full system inspection and cleaning, Refrigerant level and leak check, Thermostat calibration, Component wear assessment and report | Homeowners who want to prevent breakdowns and extend equipment life | Spring and fall are the best times to schedule; availability fills up quickly before peak heating and cooling season |
| Whole-Home Dehumidification & Humidity Control | Whole-home dehumidifier selection and installation, Integration with existing HVAC equipment, Thermostat and humidistat pairing, Seasonal performance check | Households where indoor humidity stays high through Indiana summers even with the AC running | High indoor humidity makes a home feel warmer than it is and can affect air quality over time; a dedicated dehumidifier addresses both issues |
How do I know if my furnace or AC needs to be replaced rather than repaired?
Age and repair history are the two biggest factors. If a system is more than 15 years old and has needed multiple repairs in recent seasons, replacement often costs less over time than continuing to fix an aging unit. We look at the condition of the equipment, the cost of the repair, and what a replacement would realistically cost, then give you a straight answer so you can make the call with full information.
What does a seasonal tune-up actually cover?
A tune-up is a full inspection of the system, not just a filter swap. We check refrigerant levels and look for leaks, measure airflow, clean the evaporator and condenser coils, test and calibrate the thermostat, inspect electrical connections and controls, and assess any components that are showing wear. The goal is to catch small problems before they become emergency calls and to make sure the system is running at the efficiency it was designed for.
Why is one room always hotter or colder than the rest of the house?
Uneven temperatures usually point to an airflow problem. The most common causes are leaky or disconnected ductwork, an undersized supply register, a dirty coil or filter reducing overall airflow, or a zoning issue in a larger home. We can measure airflow at the registers and trace the problem back to its source rather than guessing.
Transparent Pricing on Every Job
Before any repair or replacement begins, we give you a clear estimate covering parts and labor. You know the number before we start, not after.
How often should I schedule HVAC maintenance?
Once a year at minimum, and twice a year is better if you are running both a heating and a cooling system. A spring visit prepares the AC before summer demand peaks, and a fall visit gets the furnace or heat pump ready before the first cold snap. Staying on that schedule keeps the equipment efficient and gives us a chance to catch issues before they turn into no-heat or no-cool calls.
What are signs of a refrigerant or airflow problem?
With refrigerant, the most common signs are an AC that runs constantly but never quite cools the space, ice forming on the refrigerant lines or evaporator coil, or a hissing sound near the indoor or outdoor unit. Airflow problems show up as weak output at the registers, rooms that feel stuffy, or a system that short-cycles because it cannot move enough air. Both situations call for a technician to diagnose the root cause before any repair is attempted.
Can I do anything myself before calling a technician?
A few checks are reasonable. Make sure the thermostat is set correctly and the system switch is in the right position. Check whether a tripped breaker has cut power to the unit. Replace the filter if it has not been changed recently, since a clogged filter can cause a system to shut down on a safety limit. Beyond those steps, the equipment involves refrigerant, electrical components, and combustion systems that are best left to qualified HVAC technicians.
Same-Day and Emergency Availability
When your heating or cooling goes down and cannot wait, we make same-day service available, including evenings and weekends throughout the Greenwood area.
How does pricing work, and will I know the cost before work starts?
Yes. The normal first step is a diagnostic or service-call inspection so we know exactly what the system needs. From there, we give you a clear estimate covering parts and labor before any repair or replacement begins. If the technician finds additional problems during the inspection, we explain what was found and what it will cost to address before doing anything extra. Nothing gets added to the scope without your approval.
Is same-day service actually available, or is that just a marketing claim?
We make same-day service available for urgent no-heat and no-cool situations, including evenings and weekends. Calling early in the day gives us the best chance of reaching you the same day. During peak seasons, same-day slots fill quickly, so the sooner you call, the better. We will tell you exactly what we can do for your situation when you reach us.
Work Performed by Qualified HVAC Technicians
Every job, from a seasonal tune-up to a full system replacement, is handled by qualified HVAC technicians who know the equipment and care about the outcome.
What does a heat pump installation involve, and is it a good fit for Indiana winters?
Installation starts with a load calculation to size the equipment correctly for the home. We then handle the full installation, whether it is a ducted system tied into existing ductwork or a ductless mini-split for a specific area. A well-sized heat pump handles a typical Greenwood winter efficiently and covers summer cooling in the same unit. We test the system in both heating and cooling modes before we leave.
What causes a system to short-cycle, and should I be concerned?
Short-cycling is when the system turns on and off more frequently than normal without completing a full heating or cooling cycle. It puts extra wear on the compressor and blower motor and usually signals an underlying problem: a clogged filter, a refrigerant issue, a failing component, or an oversized system that heats or cools the space too quickly. It is worth having a technician look at it before the cycling damages more expensive parts.
How long does a full system replacement take?
Most residential system replacements are completed in a single day. The timeline depends on the equipment involved, whether any ductwork modifications are needed, and the accessibility of the installation area. We will give you a realistic time estimate when we review the job, and we keep you posted throughout the process so you know where things stand.
Every home and every system is a little different, so call us at (463) 444-9782 and we will walk you through exactly what your situation calls for.
(463) 444-9782