Lawrenceville HVAC Company handles heating and cooling for homes, rental properties, and businesses across Lawrenceville and Gwinnett County. Whether the job is an urgent repair call or a full system replacement, we work on the full range of residential and commercial equipment, including heat pumps, furnaces, and mini-splits. We are available every day from 7 AM to 10 PM.
Call (678) 892-8789 for a quote.
No matter what's going wrong with your heating or cooling, there is a service path that fits. We work with homeowners, landlords, rental property managers, and small commercial clients throughout the area. The call covers repair, installation, maintenance, and emergency response. One call is all it takes to get it looked at.
When the air conditioner stops cooling or the system runs but blows warm air, the first step is a proper diagnostic. The technician checks the condenser, the evaporator coil, refrigerant levels, and electrical connections at the unit before any parts are quoted. Common symptoms that signal a call: the AC has stopped working entirely, it cycles on and off without cooling the space, or airflow has dropped off noticeably. Getting the system checked before parts are ordered is how the repair stays on target and avoids a second trip for the wrong component.
A furnace blowing cold air or failing to turn on at all is not a problem to sit on, especially when overnight temperatures in Gwinnett County drop into the thirties. A heating repair visit covers the heat exchanger, igniter, blower motor, and airflow through the system. Uneven temperatures from room to room often trace back to airflow restrictions rather than a failing component, and the visit addresses both. Call when the heat goes out or when something about the system feels off.
Heat pumps handle both heating and cooling from a single unit, which means a service call in either season covers different operating modes of the same equipment. When a heat pump is not heating in winter or not cooling in summer, the diagnostic looks at refrigerant charge, the reversing valve, coil condition, and defrost operation. Knowing how the system behaves in each mode is what separates a heat pump service call from a generic HVAC visit.
Mini-splits are a practical solution for room additions, converted garages, and spaces that were never connected to the main duct system. A service call on a ductless system covers the indoor air handler, the outdoor unit, refrigerant lines, and the drain path. Installation of a new ductless system starts with sizing the unit to the space, not guessing. If a mini-split is not working or a new installation is needed, call to get the scope confirmed.
A thermostat that is not responding or holding temperature correctly affects comfort throughout the home, even when the HVAC equipment itself is fine. Replacing an old unit or upgrading to a smart thermostat involves confirming compatibility with the existing system wiring before anything is installed. Smart controls add scheduling, remote access, and in some cases zoning that lets different parts of the home run at different temperatures. Call us and we'll walk you through your options.
Leaking ducts push conditioned air into attics and crawlspaces rather than into the rooms where it is needed. The result is uneven temperatures, longer run times, and higher energy bills. Energy-bill concerns treated as a diagnostic clue often point straight to duct leakage rather than equipment failure. A duct inspection identifies where air is escaping, and sealing closes those gaps before the next season puts the system under load.
Whole-home air filtration works through the existing HVAC system to reduce particulates, allergens, and airborne irritants that a standard filter misses. Installation connects directly to the air handler, so the entire home benefits every time the system runs. For properties with occupants who have respiratory sensitivities, or for anyone who wants cleaner air without portable units in every room, a whole-home filtration system is worth a conversation.
A spring AC tune-up and a fall heating tune-up are two different checklists, and both matter in Georgia's climate. The AC check covers coil cleaning, refrigerant charge, drain line condition, and capacitor function. The heating check covers ignition, heat exchanger condition, and airflow through the furnace. Pre-season maintenance catches small problems before the first hot day or the first cold snap turns them into an emergency call. Give us a call and we will take care of it.
Scheduling an HVAC tech shouldn't be complicated. When the system goes down in the middle of a Georgia summer or heat disappears on a cold January night, the call gets answered and the situation gets taken seriously. Last-minute comfort calls taken seriously is how we approach every urgent request, whether it is a residence, a rental unit, or a commercial space.
We handle no-heat and no-cool emergencies: a furnace not turning on, an air conditioner that has stopped working, a heat pump stuck in one mode, or a system that simply will not respond. Emergency calls are available every day from 7 AM to 10 PM. We find the fault. We make the repair. We restore the comfort. Pick up the phone and we'll get started.
Lawrenceville sits in Georgia's humid subtropical zone. Summers run long, hot, and humid, putting heavy load on cooling equipment and accelerating wear on systems that are not maintained. Winters are mild but real, and the shoulder seasons can swing hard in either direction. The three services below are the ones that come up most often because of where this area sits, not just what equipment happens to be installed.
When a system is aging, requiring repeated repairs, or still running on an older refrigerant type that is no longer widely available, replacement is often the more practical path. Honest recommendations on repair versus replacement, never an upsell, is how that conversation goes. A full system replacement in Georgia's climate means sizing both the furnace and the AC unit to the actual load of the home, not just swapping in the same capacity as what was removed. Oversized equipment short-cycles and struggles with humidity control. The replacement visit covers removal of the old equipment, installation and commissioning of the new system, and a check of airflow through the existing ductwork.
Gwinnett County's winters are mild enough that a heat pump handles heating efficiently without the fuel cost of a gas furnace. Summers are hot enough that the same unit pulls double duty as an efficient cooling system. For homes replacing an older furnace-and-AC setup, a heat pump installation replaces both with a single piece of equipment. The installation involves the outdoor unit, the air handler or coil inside, refrigerant line connections, and thermostat configuration for heat pump operation. Call for a quote to find out what the right system looks like for the property. Give us a call and we will take care of it.
High humidity in Lawrenceville is not just a summer problem. The shoulder months bring enough moisture indoors to make a correctly cooled home feel warmer than the thermostat reads. A whole-home dehumidifier integrates with the HVAC system and runs independently when the AC is not actively cycling, pulling moisture out of the air throughout the home rather than just when cooling demand is high. The installation connects to the air handler and works through the existing duct system. Your comfort is the whole job, and it gets treated that way.
A quick tune-up and a full system swap are two different jobs, and the scope of what we handle reflects that range. Homeowners call for repairs, maintenance, and replacement. Landlords and property managers call when a tenant unit loses heat or cooling and the situation needs to move fast. Small commercial clients need the same range of services: repair calls when equipment goes down, seasonal maintenance to keep systems running efficiently, and replacement quotes when a unit reaches the end of its useful life.
We work on both the residential and commercial side, which means a property manager with multiple units and a homeowner with a single system both get the same attention to the actual problem. Call for a quote and we will confirm what the job involves before anything is scheduled. Pick up the phone and we'll get started.
When you call, the price conversation happens on the call. What the job involves, what the system type is, and what the scope looks like all factor into what a repair or installation costs. A diagnostic visit for a repair call is different from a quote for a full system replacement, and we confirm which one applies before anything is scheduled.
What affects cost: the type of equipment, the age of the system, the scope of the repair, and whether parts are needed. For replacement projects, system sizing and the condition of the existing ductwork are part of the picture. None of that gets glossed over. Call us and we'll walk you through your options.
We serve Lawrenceville as the primary service area and take calls from throughout Gwinnett County and the communities nearby. That includes Suwanee, Buford, Duluth, Snellville, Grayson, Dacula, Loganville, and Auburn. Whether the job is a repair call, a seasonal tune-up, or a full system installation, the service area covers these towns for both residential and commercial work.
A heat pump installation covers sizing the unit to the home's actual load, setting the outdoor condenser, connecting the indoor air handler, running the refrigerant lines, and configuring the thermostat for heat pump operation. Gwinnett County's climate is a practical fit for heat pumps: the summers are long enough to make efficient cooling a priority, and the winters are mild enough that a heat pump heats reliably without the fuel cost of a gas furnace. The scope and the price are confirmed on the call before the installation is scheduled.
Call (678) 892-8789 to get a quote.
A whole-home dehumidifier connects to the air handler and uses the existing ductwork to pull moisture out of the air throughout the home. It operates independently of the cooling cycle, which means it continues removing humidity even when the AC is not actively running. In Georgia's shoulder months, when outdoor humidity is high but temperatures are not hot enough to trigger frequent cooling cycles, a standalone dehumidifier handles the moisture load the AC cannot. Installation is scoped on the call.
A full system replacement means removing the old equipment, installing matched indoor and outdoor units sized to the home's actual load, and confirming airflow through the existing ductwork before the job is complete. Proper sizing is critical in Lawrenceville's climate: an oversized unit short-cycles and struggles with humidity control, while an undersized one runs constantly and never catches up. The technician also checks whether the existing ductwork can support the new system's airflow before the installation begins. Call for a quote to confirm what the replacement involves at your property.
The diagnostic starts with the symptom you described on the call and works through the system components most likely to produce it. For a cooling problem, that means checking refrigerant charge, coil condition, airflow, and electrical connections at the unit. For a heating problem, it means inspecting the ignition system, heat exchanger, blower, and controls. The technician confirms the cause before quoting any repair, so the work addresses the actual problem rather than the most common one.
Clear a path to the indoor air handler, the outdoor unit, and any registers or vents the technician may need to check. If the air handler is in a closet or attic space, make sure access is not blocked by stored items. For duct work or filter access, confirm the filter location is reachable. Anything that slows access to the equipment adds time to the visit, so a few minutes of preparation before the technician arrives helps the job move efficiently.
Uneven temperatures from room to room usually point to a duct problem, an airflow restriction, or a sizing issue with the equipment rather than a failure in the main HVAC unit. Leaking ducts that lose conditioned air before it reaches a specific room, a blocked register, or a return air path that is not balanced can all produce the same result. The diagnostic confirms which of those is causing the imbalance before any repair is quoted.
An AC that is running longer than usual without reaching the set temperature, blowing air that is not as cold as it used to be, making new noises from the outdoor unit or air handler, or producing a spike in the energy bill without an obvious cause are all signs worth acting on. A frozen evaporator coil, water pooling under the air handler, or a system that trips the breaker repeatedly also indicate a service call is needed. Call and describe what you are seeing, and we will confirm what the diagnostic visit covers.
A severely clogged filter restricts airflow to the point where the system cannot move enough air across the coil to cool or heat effectively, and in some cases it causes the system to shut down on a safety limit. Dirty ductwork carries dust, allergens, and particulates through the home every time the blower runs, reducing air quality and adding load to the filter. Addressing both as part of a maintenance visit keeps the system running efficiently and keeps the air moving through the home cleaner.
A spring AC tune-up covers coil cleaning on both the indoor and outdoor units, refrigerant level check, drain line inspection, capacitor and electrical connection testing, and a thermostat calibration. A fall heating tune-up covers ignition system inspection, heat exchanger condition, blower motor operation, and airflow through the furnace. Both visits include a check for components that are wearing toward failure so they can be addressed before the season puts the system under full load.
The recommendation is based on the age of the equipment, the cost of the repair relative to what a replacement would cost, and how the system has been performing overall. A repair that costs more than a third of the replacement value on a system that is already aging is usually the point where replacement becomes the more practical path. We give honest recommendations on repair versus replacement, and the reasoning is explained before any quote is given.
Turn the system off at the thermostat if it is making unusual noises, if you smell burning, or if you can see ice forming on the equipment. Do not try to force the system to run by overriding the thermostat settings. If the issue is no heat, use portable space heaters safely and keep interior doors closed to retain warmth.
Call (678) 892-8789 and describe what is happening so the technician arrives knowing what to expect.
When the technician arrives, the real work begins, and everything before that call is about making sure the visit is scoped correctly and the right work gets done. We are available every day from 7 AM to 10 PM for repair calls, installation quotes, maintenance visits, and emergency service across Lawrenceville and Gwinnett County.
Ready for your system. Call now.
Reach us at (678) 892-8789 for a quote.
From a single repair call to a full system replacement, we handle the complete range of residential and commercial heating and cooling work across Lawrenceville and Gwinnett County. The table below lays out what each service covers, who it fits best, and a practical note to help you decide where to start. Call us with any questions and we will confirm the scope before anything is scheduled.
| System Service | Scope of Work | Best For | What to Keep in Mind |
|---|---|---|---|
| AC Repair & Service |
| Homes or businesses where the AC has stopped cooling, cycles without effect, or airflow has dropped | Georgia summers put heavy load on cooling equipment, so catching a problem early in the season avoids longer wait times during peak heat |
| Heat Pump Repair & Service |
| Homes with a heat pump that is not heating in winter or not cooling in summer | A heat pump operates differently in heating and cooling modes, so the diagnostic covers both sides of the cycle, not just the presenting symptom |
| Thermostat & Smart-Control Installation |
| Any home or business where the thermostat is not holding temperature or where a smart-control upgrade is wanted | Wiring compatibility varies by system type, so confirming the match before installation avoids a return visit |
| Heat Pump Installation |
| Homes replacing a furnace-and-AC setup or adding efficient heating and cooling in one unit | Gwinnett County's mild winters make heat pumps a practical choice for year-round efficiency without the fuel cost of a gas furnace |
| Full System Installation & Replacement |
| Homeowners or property managers replacing aging equipment, systems requiring repeated repairs, or units running on discontinued refrigerant | Oversized equipment short-cycles and struggles with humidity control in Georgia's climate, so proper sizing is part of every replacement quote |
| Emergency HVAC Service |
| Any property where heating or cooling has failed and waiting for a scheduled visit is not practical | Emergency calls are available every day from 7 AM to 10 PM, and the situation is taken seriously whether it is a residence, a rental unit, or a commercial space |
| Indoor Air Quality & Air Filtration |
| Households with occupants who have respiratory sensitivities or anyone wanting cleaner air without portable units in every room | The filtration system runs every time the blower operates, so the benefit covers the whole home rather than a single room |
| Ductwork Repair & Sealing |
| Homes with rising energy bills, uneven temperatures, or systems that run longer than expected without reaching the set temperature | Leaking ducts push conditioned air into unconditioned spaces rather than into living areas, and the energy loss compounds over an entire cooling or heating season |
| Heating & Furnace Repair |
| Any property where heat has stopped working, the furnace blows cold air, or temperatures are uneven room to room | Gwinnett County winters can drop into the thirties overnight, so a heating call that waits tends to become an emergency call by morning |
| Seasonal Maintenance & Tune-Ups |
| Any home or business that wants to catch small problems before the first hot day or cold snap turns them into an emergency | Pre-season maintenance in Georgia matters because both the cooling and heating seasons arrive quickly, and a system that was not checked tends to surface problems under load |
| Whole-Home Dehumidification & Humidity Control |
| Lawrenceville homes where humidity makes a correctly cooled space feel warmer than the thermostat reads | Shoulder months bring enough indoor moisture to affect comfort even when the AC is not running frequently, and a whole-home unit handles what the AC alone cannot |
How do I know if my system is short-cycling and why does it matter?
Short-cycling is when the system turns on, runs briefly, shuts off, and then repeats the cycle without completing a full heating or cooling run. You may notice the temperature never quite reaches the thermostat setting, or the outdoor unit seems to start and stop every few minutes. It matters because short-cycling puts extra wear on the compressor and other components, and it usually signals an underlying problem such as a refrigerant issue, an oversized system, or a failing control board. A diagnostic visit identifies the cause before the cycling damages something more expensive to replace.
What are the signs that a compressor or blower motor is starting to fail?
A compressor that is struggling often produces a hard start noise, a grinding or rattling sound from the outdoor unit, or a system that trips a breaker repeatedly. A failing blower motor may produce a humming sound without airflow, reduced air volume from the registers, or intermittent operation where the fan runs sometimes and not others. Either problem is worth a call before the component fails completely, because a partial failure is usually less expensive to address than a full one.
What causes strange noises from an HVAC unit, and which ones mean I should call right away?
Banging or clanking from the outdoor unit often points to a loose or broken component inside the cabinet. A high-pitched squealing from the air handler can indicate a blower belt or motor bearing issue. Clicking that continues after startup may signal a failing relay or control board. Gurgling sounds can point to refrigerant or a condensate drain problem. Any noise that is new, loud, or getting worse is worth a call. Turning the system off at the thermostat and calling us is the right move if you hear grinding or banging, since running the system can turn a repair into a replacement.
System Checked Before Parts Are Quoted
We complete a full diagnostic before any parts or repairs are quoted, so the work addresses the actual cause rather than the most common one. That step protects you from paying for a repair that does not solve the problem.
How do rising energy bills connect to HVAC performance?
An air conditioner or furnace that is working harder than it should to maintain the set temperature uses more energy in the process. Common causes include a dirty coil, low refrigerant charge, leaking ducts, a clogged filter, or a system that is aging and losing efficiency. We treat energy-bill concerns as a diagnostic clue rather than a separate problem, because the spike in the bill often points directly to the component or condition that needs attention.
Do I need to be home when the technician comes out?
For interior work such as an air handler service, duct inspection, or thermostat replacement, someone needs to be present to provide access to the equipment. For outdoor-only work such as a condenser check, it depends on what the visit covers. When you call, we confirm what access is needed so you can plan accordingly. If a tenant property is involved, coordinating access before the visit is scheduled avoids a wasted trip.
Is older equipment worth repairing, or is replacement usually the better call?
It depends on the age of the system, the cost of the repair, and how the equipment has been performing overall. A repair that costs a significant fraction of what a replacement would cost on a system that is already near the end of its useful life is usually the point where replacement becomes the more practical path. We give honest recommendations on repair versus replacement, and the reasoning behind the recommendation is explained before any quote is given. The goal is the right answer for the situation, not the higher-ticket option.
Emergency No-Heat and No-Cool Calls Handled
When the system goes down and waiting is not an option, we take the call seriously. Emergency HVAC service is available every day from 7 AM to 10 PM for residences, rental units, and commercial properties across the Lawrenceville area.
What does a thermostat or smart-control upgrade actually involve?
The first step is confirming that the new thermostat is compatible with the existing system wiring. Heat pumps, multi-stage systems, and zoned setups each have specific wiring requirements, and not every smart thermostat works with every system without an adapter or additional wiring. Once compatibility is confirmed, the old unit is removed, the new one is installed and configured, and the system is tested to make sure heating and cooling respond correctly. Smart controls add scheduling, remote access from a phone, and in some cases the ability to run different areas of the home at different temperatures.
How does indoor humidity affect how comfortable a home feels, even when the AC is running?
High humidity makes air feel warmer than it actually is, which means a home set to 74 degrees can feel like 78 if the moisture level is not controlled. In Lawrenceville, the shoulder months bring enough outdoor humidity indoors that the AC alone may not cycle often enough to pull the moisture out of the air. A whole-home dehumidifier runs independently of the cooling cycle and keeps indoor humidity at a level where the thermostat setting matches what the space actually feels like.
Older Systems and New Installs Both Covered
Whether the equipment is a newer system that needs a repair or an older unit being evaluated for replacement, we work across the full range. Heat pumps, furnaces, and mini-splits all fall within scope, and the recommendation you get is based on what makes sense for the system in front of us.
What signs point to a refrigerant or airflow problem rather than a failing compressor?
A refrigerant issue often shows up as an AC that runs continuously without reaching the set temperature, ice forming on the evaporator coil, or air coming from the registers that is cool but not cold. An airflow problem produces similar symptoms but is usually traceable to a clogged filter, a blocked return, or a blower that is not moving enough air across the coil. The diagnostic separates the two by checking refrigerant charge, coil condition, and airflow in sequence rather than assuming one cause from the symptom alone.
How long does a full system replacement typically take?
A standard residential replacement of both the outdoor condenser and the indoor air handler or furnace usually takes most of a workday. The time covers removing the old equipment, setting and connecting the new units, pressure testing the refrigerant lines, and commissioning the system to confirm it is operating correctly. If the existing ductwork needs adjustment or the electrical disconnect at the outdoor unit requires attention from an electrician before the installation can be completed, the timeline may extend. The scope is confirmed on the call before the visit is scheduled so there are no gaps in the plan.
Is the work done to code, and does it require a permit?
HVAC installation and replacement work is subject to local permitting and inspection requirements that vary depending on the scope of the job and where the property is located within Gwinnett County. We confirm what applies to the specific job before the work begins. Code-compliant installation matters beyond the permit itself because it affects how the equipment performs, how long it lasts, and whether a future home sale or insurance claim runs into problems tied to unpermitted work.
Call us at (678) 892-8789 and we will confirm what the job involves, what the visit covers, and what the price looks like before anything is scheduled.
(678) 892-8789