P.A. Propp Heating and Air is Smyrna's locally owned heating and cooling contractor, serving homeowners, landlords, property managers, and businesses across Cobb County and the surrounding area. When your AC stops cooling, your furnace won't fire, or you need a full system replacement, our team is ready to help. Work is performed by qualified HVAC technicians who show up prepared, diagnose the problem accurately, and get the system running the way it should.
Local crew. Real technician on the phone. Quick to respond.
Same-day availability, honest pricing, and the HVAC work done right the first time. Call (470) 995-4495 to schedule service or request a quote.
Not every HVAC company works the same way, and the difference shows up fast when something goes wrong. We handle the full range of residential and commercial heating-and-cooling work: AC repair and service, furnace repair, heat pump service, system installation and replacement, ductwork repair and sealing, thermostat and smart control upgrades, indoor air quality, and seasonal maintenance.
Every job gets code-compliant HVAC work, whether it is a quick tune-up or a full system swap. We pay attention to airflow, uneven temperatures, and the small details that point to a bigger problem down the road. When a customer calls about a system that is not keeping up, we look at the whole picture, not just the obvious symptom.
We live and work in this community, and our work shows it.
If you are a homeowner trying to stay cool through a Georgia summer, a property manager keeping tenants comfortable, or a business owner who cannot afford downtime, we are the team to call. Reach out and a technician will follow up.
Georgia summers are long and unforgiving, and a central air system that is not cooling is more than an inconvenience. We handle the full range of AC failures: AC not working, air conditioner blowing warm air, AC unit not turning on, and central air that has simply stopped keeping up. A service visit starts with a thorough diagnosis, including refrigerant leak diagnosis if needed, condenser and compressor inspection, evaporator coil check, and an airflow assessment to make sure the whole system is moving air the way it should.
We treat your home and its system the way we would our own, which means we explain what we find before we start work and we do not recommend repairs that are not necessary. Same-day AC repair and 24-hour AC repair are available for situations that cannot wait. We'll get your comfort back on track.
A spring tune-up before the heat arrives is the best way to avoid a mid-July breakdown. Our seasonal AC maintenance covers refrigerant levels, electrical connections, coil cleaning, drain line clearing, and a full system check to make sure everything is operating at peak efficiency. Georgia's cooling season runs long, so the system works hard. Annual maintenance keeps it reliable and helps it last.
When repair costs are climbing or the system is simply too old to keep up with a Georgia summer, replacement is often the smarter call. We handle new AC unit installation, central air installation, and full AC system replacement. Proper sizing matters as much as the equipment itself, so we assess the home or building before recommending a system. You will know what to expect before the crew arrives, and the job gets done cleanly.
Georgia winters are mild compared to the Midwest, but they are real. When the temperature drops and the furnace is not working, it needs to be fixed today. We handle furnace not turning on, furnace blowing cold air, no heat in the house, and heating systems that cycle on and off without warming the space. Our diagnostic process covers the heat exchanger, ignition system, burners, and controls so we find the actual problem rather than guessing.
The HVAC work done right the first time means we do not leave until the system is heating correctly and we are confident it will stay that way. Emergency furnace repair, same-day furnace repair, and 24-hour furnace repair are available when the situation is urgent. We'll take care of the system from here.
A fall furnace tune-up catches the small issues before they turn into cold-night emergencies. We clean the burners, check the heat exchanger, test the ignition, inspect the flue, and run the system through a full cycle to confirm it is operating safely and efficiently. Annual furnace service is the straightforward way to protect the investment and keep heating bills in check.
When a furnace has reached the end of its useful life, or repair costs no longer make sense, we handle full furnace replacement. We walk through the options, size the system correctly for the space, and complete the installation with minimal disruption. Whether it is a like-for-like replacement or an upgrade to a more efficient unit, we handle the job from start to finish.
When the heat or the AC quits and you have a heat pump, the cause is not always obvious. Heat pumps handle both heating and cooling, so a system that is not heating in winter or not cooling in summer needs a careful diagnosis. We check the refrigerant charge, reversing valve, air handler, blower, and controls to find the problem and fix it correctly. Heat pump tune-up and maintenance visits follow the same thorough process.
Heat pump installation is also a strong option for Smyrna homes and businesses considering an upgrade. The Georgia climate is well-suited to heat pumps: mild winters mean the system can handle the heating load efficiently, and it doubles as the cooling system in summer. We assess the property, explain the options, and give you a clear picture of what installation involves before scheduling. We'll get your comfort back on track.
Ductless mini-splits are a practical solution for additions, older homes without existing ductwork, garages, and spaces that are difficult to condition with a central system. We handle mini-split installation, mini-split repair, and ductless heating and cooling installation for both residential and commercial customers. If a room is consistently too hot or too cold, or you are adding conditioned space to a property, a ductless system is worth a conversation.
Georgia's climate puts real demands on HVAC equipment. Hot, humid summers push cooling systems hard, and while winters are mild, the temperature swings are enough to stress older equipment. The following services come up often in this area for good reason.
When a system has reached the point where it can no longer handle a Georgia summer or keep up on a cold January night, full HVAC system replacement is the right call. We assess the existing setup, recommend correctly sized equipment, and handle the installation with code-compliant HVAC work on every job. Energy-efficiency upgrades are part of the conversation, so you are not just replacing what was there before.
Heat pumps are a natural fit for the Smyrna area. Mild winters mean the system rarely has to work at the limits of its heating capacity, and it handles summer cooling the same way a traditional AC system does. For homeowners and property managers looking at a system upgrade or replacement, heat pump installation is worth understanding. We walk through what is involved, what the equipment options look like, and what to expect from the process before any work begins.
Cobb County summers are humid, and that humidity affects comfort, air quality, and even the structure of a home. A whole-home dehumidifier integrates directly with the existing HVAC system and pulls excess moisture out of the air across every room, not just the space where a portable unit sits. The result is a home that feels cooler at the same thermostat setting and air that is healthier to breathe. For anyone dealing with musty odors, condensation on windows, or allergy symptoms that worsen in summer, this is a service worth asking about.
Leaky ducts waste conditioned air before it ever reaches the living space, which means the system runs longer, works harder, and still leaves some rooms uncomfortable. We handle duct sealing, leaking ductwork repair, and full ductwork replacement when needed. Airflow and uneven-temperature troubleshooting is often the first step in finding where the system is losing efficiency.
A thermostat that is not working, or one that is simply outdated, affects comfort and energy use more than most homeowners realize. We install programmable thermostats, smart thermostat systems, and standard replacements for units that have failed. An upgraded control gives you better scheduling, more consistent temperatures, and in many cases, a noticeable improvement in how the system performs day to day.
Georgia's pollen season is long, and the humidity adds its own air quality challenges. We install whole-home air purifiers, UV air purifiers, air scrubbers, and upgraded filtration systems that work with the existing HVAC setup to remove particles, allergens, and biological contaminants from the air. If indoor air quality is a concern, whether for health reasons or general comfort, we can walk through the options that make sense for the home or building.
Some businesses need a full system replacement. Others just need a tune-up and a maintenance schedule to keep things running. We work with property managers, office buildings, retail spaces, and restaurants across the area on commercial HVAC repair, commercial AC repair, commercial heating repair, and commercial HVAC maintenance. Rooftop unit repair and RTU service are a regular part of our commercial work.
We find it. We fix it. We test the airflow.
Uptime matters for a business, and we schedule around your operation when we can. Whether it is a planned maintenance visit or an urgent repair, commercial customers get the same thorough diagnostic process and the same standard of work as every residential job.
Booking an HVAC service call is simple, and when the system goes down without warning, simple matters. Call (470) 995-4495 and a qualified HVAC technician will be in touch quickly. We offer same-day HVAC service, 24-hour HVAC service, and after-hours availability for heating and cooling emergencies. Emergency AC repair in the middle of a Georgia summer and emergency furnace repair on a cold night are situations we handle regularly.
If the system is down and the house or building is not comfortable, do not wait to see if it fixes itself. Reach out and a technician will follow up.
When the job is done, we leave your home clean and comfortable, and that standard has been the same since we opened in 2016. Over the past ten years, we have built a reputation across Smyrna and Cobb County for showing up when we say we will, doing the work correctly, and being straightforward with customers about what they need and what they do not.
Work is performed by qualified HVAC technicians who take the job seriously, whether it is a routine maintenance visit or a full system replacement. We serve residential and commercial customers throughout the area, including Marietta, Vinings, Mableton, Austell, Powder Springs, and Kennesaw. If you are in the area and need heating or cooling help, we are close by and ready to help.
We are based in Smyrna and serve customers throughout Cobb County, including Marietta, Vinings, Mableton, Austell, Kennesaw, Acworth, Powder Springs, and Cumberland. If your neighborhood is not on that list, call us at (470) 995-4495 and we can confirm availability for your location.
Call us at (470) 995-4495 and we will get a qualified HVAC technician scheduled as quickly as possible. A system that won't turn on at all is one of the situations we treat as urgent, and we offer same-day and after-hours availability for exactly these kinds of calls. Do not wait to see if it resolves on its own.
Yes. We work with homeowners, landlords, property managers, and commercial building owners across the area. Whether the job is a single-family home repair or a rooftop unit service call at a retail property, we bring the same standard of work to every visit.
We offer same-day availability for many calls, and after-hours and weekend service for urgent heating and cooling failures. When you call, a real local person can tell you what the earliest available window looks like for your address.
The technician will introduce themselves, review what you reported, and start with a thorough diagnostic before recommending any repair. We explain what we find and what it will cost before any work begins, so there are no surprises on the invoice.
A diagnostic and repair visit for a common issue usually takes one to three hours depending on the system and what we find. Larger jobs like full system replacement take longer, and we give you a realistic timeframe when we schedule so you can plan accordingly.
For interior work, yes. Someone needs to be present to provide access to the equipment and to review what we find before work begins. If you have a property manager or tenant who can be on-site, that works as well.
The technician will walk you through the diagnosis before starting any repair and will check in with you if anything changes once the work is underway. We do not proceed with additional work beyond the original scope without your approval first.
Payment is collected at the time of service for most residential calls. For larger commercial or installation jobs, we discuss payment expectations upfront so there is no confusion when the work is complete.
Call us at (470) 995-4495 and we will find another time that works. We understand that schedules change, and we will do our best to get you back on the calendar quickly, especially if you are dealing with a system that is not working properly.
For larger installations and full system replacements, we discuss deposit expectations when we schedule the job. We are transparent about what is required upfront so you know what to expect before the crew arrives.
P.A. Propp Heating and Air is ready to help with heating and cooling repairs, installations, and maintenance across Smyrna and Cobb County. Same-day availability, work performed by qualified HVAC technicians, and service for both residential and commercial customers. Call (470) 995-4495 to request a quote or schedule a service visit.
Fast turnaround. Fair pricing. Comfortable results.
We'll take care of the system from here.
We handle the full range of residential and commercial heating and cooling work across Smyrna and Cobb County, from a quick tune-up to a full system replacement. The table below breaks down each service, what it covers, and who it fits best, so you can call with a clear picture of what you need. Every job is handled by qualified HVAC technicians who diagnose accurately and work cleanly. If you have questions about a specific situation, call us and we will walk through it with you.
| System Service | What the Service Includes | Best Suited For | What to Keep in Mind |
|---|---|---|---|
| Furnace and AC System Replacement | End-of-life system evaluation, Matched replacement sizing, Removal of old equipment, Clean installation with no loose ends | Properties where repair costs no longer make sense or the system is simply too old to keep up | We walk through the options and give you a clear picture before scheduling any work |
| Emergency HVAC Service | Same-day availability, After-hours and weekend response, No-heat and no-cool situations, Urgent diagnostic and repair | Any customer whose system has gone down without warning and cannot wait for a scheduled appointment | Call us directly; a qualified HVAC technician will be in touch quickly to get a time confirmed |
| Whole-Home Dehumidification and Humidity Control | Whole-home dehumidifier installation, Integration with existing HVAC system, Humidity level assessment, Air quality improvement across all rooms | Cobb County homeowners dealing with musty odors, condensation, or worsening allergy symptoms in summer | A whole-home unit works across every room, unlike a portable dehumidifier that only covers one space |
| Heating and Furnace Repair | Furnace not turning on, Blower and ignition diagnosis, Heat exchanger inspection, Controls and cycling check | Any home or building that has lost heat or is heating unevenly | Emergency and same-day furnace repair available; do not wait on a system that will not fire |
| AC Repair and Service | Diagnosis of cooling failures, Refrigerant leak check, Condenser and coil inspection, Airflow assessment | Homeowners or businesses with an AC that has stopped cooling or is underperforming | Same-day and after-hours availability for situations that cannot wait through a Georgia summer |
| Seasonal Maintenance and Tune-Ups | Spring AC tune-up, Fall furnace tune-up, Refrigerant level check, Full system cycle and safety inspection | Any homeowner or property manager who wants to avoid mid-season breakdowns and extend equipment life | Georgia's long cooling season puts real hours on AC equipment; annual maintenance keeps it reliable |
| Full System Installation and Replacement | Proper load and sizing assessment, Equipment selection guidance, Full installation by qualified technicians, Code-compliant work on every job | Homeowners and property managers replacing an aging or failing central system | Correct sizing is as important as the equipment itself; we assess before recommending |
| Ductwork Repair and Sealing | Leaking duct diagnosis, Duct sealing and repair, Full ductwork replacement when needed, Airflow and uneven-temperature troubleshooting | Homes with high energy bills, uneven temperatures, or rooms that never seem to stay comfortable | Leaky ducts waste conditioned air before it reaches the living space and force the system to run longer |
| Thermostat and Smart Control Installation | Programmable thermostat installation, Smart thermostat setup, Failed thermostat replacement, System performance verification after install | Homeowners who want better scheduling, more consistent temperatures, or an upgraded control | An outdated or failing thermostat affects comfort and energy use more than most people expect |
| Heat Pump Installation | Site and load assessment, Equipment options walkthrough, Full installation and commissioning, Both heating and cooling function confirmed | Smyrna homes and businesses considering an upgrade from a traditional split system | Georgia's mild winters make heat pumps an efficient fit for this climate year-round |
| Heat Pump Repair and Service | Heating and cooling mode diagnosis, Reversing valve check, Refrigerant charge inspection, Air handler and blower assessment | Properties with a heat pump that is not heating in winter or cooling in summer | Heat pumps handle both seasons, so a careful diagnosis matters before any repair is made |
| Indoor Air Quality and Air Filtration | Whole-home air purifier installation, UV air purifier and air scrubber options, Upgraded filtration systems, Integration with existing HVAC equipment | Households dealing with Georgia pollen, humidity-related air quality issues, or health-driven filtration needs | All systems we install work with your existing HVAC setup, no separate standalone equipment needed |
How do I know if my AC or furnace needs to be replaced rather than repaired?
A few signs point toward replacement over repair: the system is more than 15 years old, repair estimates are approaching half the cost of a new unit, or the equipment is struggling to keep up even when it is running. We look at the full picture when we diagnose a system and give you an honest read on whether repair or replacement makes more financial sense for your situation.
Why would a heat pump stop heating in winter or cooling in summer?
Heat pumps handle both functions, so a failure in either mode can have several causes. Common ones include a low refrigerant charge, a faulty reversing valve that controls which direction the system runs, a problem with the air handler or blower, or a controls issue. We diagnose the system carefully before recommending a repair, because the symptom does not always point directly to the cause.
How often should I schedule a maintenance tune-up for my HVAC system?
Once a year for each function the system handles. For a traditional split system, that means a spring AC tune-up before the Georgia cooling season starts and a fall furnace tune-up before the first cold nights. For a heat pump that handles both seasons, an annual visit covering both modes is the right interval. Regular maintenance catches small problems before they become expensive failures.
Same-Day and Emergency Availability
When the system goes down in the middle of a Georgia summer or on a cold January night, we offer same-day and after-hours service so you are not waiting until the next business day to get a technician on-site.
Is the HVAC work you do permitted and inspected to code?
Yes. We perform code-compliant HVAC work on every job, which means the work meets local requirements and, where a permit is required, we handle that as part of the job. If you have questions about what a specific project involves from a permitting standpoint, ask us when you call and we will give you a straight answer.
Why is one room in my house always hotter or colder than the rest?
Uneven temperatures usually point to one of a few things: leaky or undersized ductwork, a damper that is not positioned correctly, an airflow restriction somewhere in the system, or a system that was not sized correctly for the layout of the home. We start with an airflow and ductwork assessment to find where the system is losing efficiency before recommending a fix.
What do strange noises from my HVAC unit usually mean?
It depends on the sound. A banging or clanking noise often points to a loose or failing component inside the unit. A high-pitched squealing can indicate a blower motor or belt issue. Rattling at startup sometimes means a loose panel or debris in the system. A grinding noise is more serious and usually means a motor or bearing is failing. If the system is making a noise it did not used to make, call us and we will diagnose it before it becomes a larger problem.
Work Performed by Qualified HVAC Technicians
Every job, whether it is a routine tune-up or a full system replacement, is handled by qualified HVAC technicians who diagnose accurately, work cleanly, and do not leave until the system is running the way it should.
How do ductwork leaks affect my energy bills?
Leaky ducts allow conditioned air to escape into unconditioned spaces like attics, crawl spaces, and wall cavities before it ever reaches the rooms you are trying to heat or cool. The system compensates by running longer, which drives up energy costs and puts more wear on the equipment. Sealing the ducts recovers that lost efficiency and often makes a noticeable difference in how evenly the home is conditioned.
What does a seasonal tune-up actually cover?
For an AC tune-up, we check refrigerant levels, clean the condenser and evaporator coils, clear the condensate drain line, inspect electrical connections, and run the system through a full cycle to confirm it is operating at the right capacity. For a furnace tune-up, we clean the burners, inspect the heat exchanger, test the ignition system, check the flue, and verify the system is cycling safely. The goal is to catch anything that would cause a failure during the season when you need the system most.
Code-Compliant Work on Every Job
We treat your home and its system the way we would our own, which means every installation and repair meets code requirements and is done with the kind of attention to detail that holds up over time.
Can a dirty filter or coil really hurt my system that much?
Yes. A clogged filter restricts airflow across the system, which forces the blower to work harder and can cause the evaporator coil to freeze in summer or the heat exchanger to overheat in winter. A dirty evaporator or condenser coil reduces the system's ability to transfer heat, which means it runs longer and works harder to reach the same temperature. Changing the filter regularly and scheduling annual maintenance are the two simplest things you can do to protect the equipment.
Do I need to be home when the technician comes?
For any work that requires access to the interior of the home or building, yes. Someone needs to be present to provide access to the equipment and to review the diagnosis before any repair begins. If you have a property manager or a tenant who can be on-site and is authorized to make decisions, that works just as well.
How does pricing and estimating work before a job starts?
The technician diagnoses the system first, then explains what we found and what the repair or installation will involve before any work begins. We give you a clear picture of the cost so there are no surprises on the invoice. For larger jobs like system replacement, we walk through the options and provide a quote before scheduling the installation.
If you are not sure which service fits your situation, call us at (470) 995-4495 and a qualified HVAC technician will help you figure out the right next step.
(470) 995-4495