Emergency AC Repair
Same day attendance when cooling stops in hot weather. The diagnosis distinguishes between faults worth repairing on an older system and conditions that make replacement the more sensible spend this season.
Installation and commissioning
New equipment in Lula, GA, sized to the building rather than to the box that came out
Load calculations before the quote, manufacturer commissioning procedure at the end, and the finished numbers written on a sheet you keep.
Replacement equipment fails to deliver what the brochure promised for one reason far more often than any other. It was never sized, never commissioned, or both. Somebody read the model number on the old unit, ordered the same tonnage, bolted it in, charged it by feel and left. The building gets a newer machine fighting exactly the same duct restriction, the same envelope leakage and the same control problem it had before.
An oversized air conditioner satisfies the thermostat before it has run long enough to pull moisture out of the air, so the house feels clammy at seventy two degrees. An oversized furnace short cycles, wears its ignition components out early and swings the temperature two degrees either side of setpoint. Neither problem shows up on the day of the install. Both show up in the first full season, and by then the equipment is somebody else's fault.
Every install closes with numbers
Airflow verified in cubic feet per minute, refrigerant weighed rather than estimated, static pressure recorded on both sides of the air handler, gas manifold pressure set with a gauge, and temperature rise checked against the nameplate range. All of it written on a commissioning sheet that stays with the equipment.
Manual JLoad calculated before the equipment is selected
Manual DDuct static reviewed as part of the design
WeighedRefrigerant charged by scale, not by gauge feel
PermittedWork pulled and inspected where the jurisdiction requires it
What a properly run installation includes before anyone talks about price
Eight things that separate an installation from an equipment swap, all of them standard practice on jobs in Lula, GA.
Room by room load calculationHeat loss and heat gain worked out from the actual construction, glazing, orientation and infiltration of the building.
Duct system evaluationExisting trunk and branch sizing measured against the airflow the new equipment needs, before the equipment is chosen.
Permit pulled where requiredMechanical, gas and electrical permits handled by us, with the inspection scheduled and attended rather than left to you.
Line set and plenum reworkedTransitions fabricated to fit the new cabinet properly instead of forced onto connections sized for the old one.
Evacuation to a micron targetSealed systems pulled down and held under a micron gauge, so moisture and non condensables are actually out of the circuit.
Charge weighed inRefrigerant added by scale to the factory charge plus line length allowance, then proven with superheat and subcooling.
Commissioning sheet handed overAirflow, static, temperature rise, manifold pressure and amperages recorded and left with you in writing.
Registered manufacturer warrantyEquipment registered on your behalf so the parts warranty runs for its full stated term rather than the shorter unregistered one.
Most of the items on that list are invisible once the panels go back on, which is precisely why they get skipped. A homeowner can see whether the cabinet is level and whether the site was cleaned up. Nobody can see whether the system was evacuated to five hundred microns or simply purged with refrigerant until the gauges looked plausible, and the difference between those two decisions is the working life of the compressor.
Permits attract the most argument. Pulling one costs money, adds a scheduling step and puts an inspector in the building, so a contractor quoting against someone who skips them starts from behind. It is still the right call. An unpermitted gas appliance or a panel modification that never saw an inspector becomes your problem at the point of sale, and an insurer looking at a claim will ask the same question.
The warranty registration point is small and worth knowing. Most manufacturers offer a longer parts warranty if the equipment is registered within sixty or ninety days of installation, and a shorter default term if nobody bothers. Registration takes a few minutes and it is done here as part of closing out the job, along with handing over the paperwork you would need to make a claim.
Load calculation is where the real disagreement in this trade sits. Rule of thumb sizing by square footage was developed for housing stock that no longer exists, and applying it to a building that has been reroofed, reglazed or insulated since the original system went in produces equipment that is routinely a half ton to a full ton too large. Calculating properly usually results in a smaller and cheaper machine, which is an awkward thing for a sales driven contractor to recommend and an easy thing for a service driven one.
One more item belongs on the list even though it rarely appears on a quote. Somebody has to be responsible for the airflow the new equipment actually achieves, not the airflow it is rated for. Rated capacity assumes a specific volume of air across the coil, and a system delivering three hundred cubic feet per minute per ton instead of four hundred loses a meaningful share of its output before it has done anything wrong. Measuring it is the only way to know, and correcting it is usually cheaper than the efficiency upgrade somebody wanted to sell you instead.
None of this adds much time to a job. A load calculation is an hour at a desk. A duct evaluation is twenty minutes with a manometer. Commissioning adds perhaps forty minutes at the end of a day that already ran eight. The reason it is not universal has nothing to do with time and everything to do with whether anyone is measuring the result.
What gets decided before the quote
Four determinations that are made on site, not in an office, and that shape the price far more than the badge on the equipment does.
Same crewInstallation and service work rotated across the team
2007Family owned since, no outside ownership
Installation crews that also carry the service calls
The same people who fit the equipment are the people who get called out when it misbehaves two winters later, which changes how it gets fitted.
There is a structural problem in this industry worth naming. Many companies split installation and service into separate divisions with separate crews, separate targets and separate pay structures. The install crew is measured on jobs completed per week. The service crew inherits whatever the install crew left behind. Nobody on the install side ever hears about the condensate trap that was never primed or the return that was left ten inches short.
That split does not exist here. Technicians rotate between installation and service work, which means the person routing a line set has stood in an attic at eleven at night trying to reach a similar line set with a leak in it. Decisions about access, serviceability and clearance get made differently when you expect to be the one coming back.
It also changes what gets recommended. A crew that only installs will happily fit whatever the customer asks for. A crew that also services knows which equipment platforms have parts availability in Lula, GA, which control boards fail predictably, and which high efficiency designs are genuinely robust rather than just well marketed. That knowledge is worth more to a homeowner than any brochure comparison.
The business has run this way since 2007 and it is family owned, which makes the long horizon easier to hold. There is no acquisition timeline forcing revenue per truck upward each quarter, and no incentive to sell equipment that will be somebody else's problem. Warranty callbacks come out of our own margin, so the cheapest possible installation is also the most expensive one.
- The calculated load of the building, room by room, rather than the capacity of the outgoing unit
- Whether the existing duct system can carry the airflow the new equipment requires
- Whether the electrical service, gas line and venting are adequate for the proposed equipment
- Whether a repair on the existing system is still the better financial decision this year
Installation and replacement work across both trades
Twenty two service lines, each with its own page setting out the sizing questions, the scope of work and the decision points.
AC Compressor Repair
Windings tested to ground, start components proven and oil condition assessed. A failed compressor on a system past a decade old shifts the conversation toward replacement, and the numbers get shown either way.
AC Installation
Condenser and coil matched as a rated pair, line set evaluated or replaced, cabinet transitions fabricated to fit, evacuation held to a micron target and charge weighed in against line length.
Central Air Installation
Cooling added to a building that has never had it, or a full system reworked. Plenum design, return path, condensate routing and electrical capacity are settled before equipment is ordered.
AC Tune-Up
Seasonal service with readings recorded. On newly installed equipment this becomes the annual comparison against the commissioning sheet, which is how drift gets caught while it is still cheap.
Furnace Replacement
Sizing from calculated heat loss, venting reworked for the new category of appliance, gas line capacity confirmed and temperature rise set inside the nameplate band at handover.
Boiler Repair
Circulators, zone valves, expansion vessels, low water cutoffs and controls diagnosed as a system. Repair keeps a sound boiler running for years, and the assessment says plainly when it will not.
Boiler Replacement
Output matched to calculated heat loss instead of the outgoing unit. Near boiler piping, primary and secondary separation, fill and expansion all rebuilt rather than reconnected as found.
Heat Pump Repair
Reversing valves, defrost controls, outdoor sensors and auxiliary heat staging. Heating mode faults are diagnosed in heating weather, because a system that cools correctly can still fail in reverse.
Heat Pump Installation
Balance point calculated, auxiliary heat locked out above it, defrost cycle verified and the control strategy set so the backup heat is not quietly carrying the whole load all winter.
Thermostat Repair & Replacement
A stat that will not call for heat is often innocent. Wiring continuity, transformer output, board fusing, staging configuration and protocol compatibility are all proven before a replacement is offered.
Ductwork Install & Replace
Trunk and branch sizing worked back from the airflow the equipment needs. Crushed flex, disconnected boots and returns that cannot feed the blower replaced rather than patched around.
Duct Sealing
Leakage measured before and after, sealed with mastic at joints, boots and takeoffs. Duct loss into an unconditioned attic or crawl space is often the single largest efficiency loss in a building.
Indoor Air Quality Testing
Particulate, humidity, carbon monoxide and pressure diagnostics used to locate the actual source before any equipment is proposed. Testing first means the fix answers a measured problem.
Air Cleaning & Humidifiers
Media cabinets, electronic cleaners and bypass or steam humidifiers specified against filter pressure drop, so the air cleaning solution does not quietly starve the blower it is fitted to.
Dryer Vent Cleaning
Full run cleared and inspected, airflow proven at the termination, transition hose replaced where it has been crushed, and over long or badly routed runs identified for rework.
Water Heater Repair
Tank and tankless faults diagnosed properly: ignition and pilot assemblies, thermostats and elements, anode depletion, scale in exchangers and relief discharge that signals a system pressure problem.
Drain Cleaning
Cabling and jetting for kitchen, bath, laundry and main lines, followed by a camera run so the cause is identified rather than simply cleared and forgotten until it returns.
Commercial Drain Cleaning
Grease loaded kitchen waste lines, floor drains and long horizontal runs jetted on a maintenance interval set from camera evidence rather than from a guess about how often it should be done.
Bathroom Plumbing Repair
Supply stops, fill and flush assemblies, tub and shower valve cartridges, traps and branch lines. Slow hidden leaks located before the damage below reaches the point of reconstruction.
Frozen Pipe Repair
Controlled thawing, replacement of split sections, and correction of the exposure that caused it. A run that froze once will freeze again unless the insulation or routing changes.
Backflow Testing
Yearly certification of the assemblies protecting a potable supply. Differential readings taken with a calibrated test kit, results filed on the required form, and worn internals rebuilt in place.
Equipment replacement rarely arrives as a clean decision. It usually turns up in the middle of a repair, when a part is discontinued or a diagnosis comes back with a cracked exchanger. The pages below are written for that moment, which is why each one sets out the specific condition that ends a system rather than a general argument for buying something new.
Where a job crosses between the mechanical and the plumbing trades, both licenses are on site. Water heater replacement touching a shared flue, a boiler feed and expansion group, or a condensate line tying into sanitary drainage are all jobs where one trade improvising in the other's territory produces a code problem that surfaces at inspection or, worse, does not.
Questions to ask any installer
Five questions that reliably separate a measured installation from an equipment swap, whoever you end up hiring.
- Will you perform a room by room load calculation, and can I see it?
- What static pressure did you measure on the existing duct system?
- What micron level will the sealed system be evacuated to?
- Will the refrigerant charge be weighed in or adjusted by gauge readings?
- What commissioning numbers will I be given in writing at handover?
Where installations go wrong, and what it costs later
Eight failure patterns seen repeatedly on service calls to equipment that somebody else installed.
Service work on other companies' installations is an education. The same handful of shortcuts turn up again and again, usually two or three years after the job, usually presented by the homeowner as a fault with the equipment rather than with the fitting of it.
None of the eight below is exotic. Each one is a step that was available to the installer, took under an hour, and was skipped because nothing visible happens when you skip it.
Sizing copied from the old unit
The building has usually changed since the original system was specified. Copying the outgoing tonnage locks in every error the previous installer made and adds any new ones.
Duct system never measured
New equipment fitted to a duct system running well above its design static will never reach rated airflow. The blower works harder, the coil runs colder and the compressor pays for it.
Sealed system purged instead of evacuated
Moisture left in a refrigerant circuit forms acid. The failure arrives years later as a burned out compressor that looks like bad luck rather than a bad install.
Charge set by gauge pressures alone
Pressures vary with airflow, ambient and indoor load. A charge that looks right on a mild day is often wrong by a significant margin on the day you actually need the cooling.
Condensate handled as an afterthought
Traps not primed, no secondary pan, no float switch and drains run uphill. The first blocked line then delivers water into a ceiling instead of into a drain.
Venting left as found
A change in appliance category changes the venting requirement. Reusing a flue liner sized for the old appliance is a combustion safety problem, not a cosmetic one.
Temperature rise never set
A gas furnace has a nameplate rise range. Running outside it either overheats the exchanger or condenses in the flue, and setting it correctly takes one adjustment and one measurement.
No paperwork handed over
Without commissioning numbers there is no baseline. Every future service call starts blind, and any argument about performance becomes one opinion against another.
Installation customers on how the job was run
Comments about the parts of an installation that are usually invisible.
Installation reviews tend to be written a season or two after the work, once the system has been through the weather it was bought for. The ones below were left by households in Lula, GA who had a previous system replaced.
What comes up most often is the handover paperwork, which surprised us at first. It appears that being given the finished numbers changes how people feel about a large purchase.
The calculation came back saying we needed a smaller unit than the one being replaced, which was not what the other two quotes said. Three summers in and the house holds temperature without the humidity problem we used to have.
They found the return duct was half the size it needed to be and included fixing it in the quote rather than discovering it afterwards as an extra.
Permit was pulled, inspection was booked, and somebody was there to meet the inspector. I had no idea how unusual that apparently is.
The commissioning sheet on the side of the air handler has been useful twice already when a technician came for a service visit.
Our old water heater shared a flue with the furnace, and they explained why the replacement changed what the venting had to be. Nobody else raised it.
They registered the warranty for us and sent the confirmation. Small thing, but it doubled the parts coverage term.
Installation questions worth asking before you sign anything
Sizing, permits, timelines, warranties and what happens if the numbers do not come out right at handover.
Because the building has almost certainly changed since the original system was specified, and because the original was probably oversized as well. Replacement windows, added insulation, a new roof or air sealing work all reduce the load, and rule of thumb sizing tends to round upward at every step.
A correctly sized system runs for longer cycles at lower capacity, which is how it removes humidity in summer and avoids temperature swing in winter. Longer run times feel counterintuitive and are the point.
A straight air conditioner or furnace changeout on an accessible system is usually a single day. A boiler replacement with near boiler piping rebuilt is commonly two days. Adding cooling to a building that has never had it, or replacing significant ductwork, runs longer and gets scheduled as a multi day job from the start.
The schedule is given as a range at quote stage rather than as an optimistic single figure, because access surprises are common in older buildings and a date that slips is worse than a date that was honest.
Where the jurisdiction requires one, yes, and it is pulled as part of the job rather than left to you. Gas appliance replacement, electrical changes and new mechanical installations commonly require one.
The practical reason to care is resale and insurance. Unpermitted mechanical work becomes a negotiating point at the point of sale, and an insurer reviewing a fire or water claim will ask whether the installation was inspected.
The job is not finished until they are inside the manufacturer range. If airflow is short, the duct restriction gets addressed. If temperature rise is high, the gas input or the blower speed is adjusted. If subcooling is off, the charge is corrected by weight.
This is the reason the numbers get measured at all. A system handed over outside its nameplate ranges is a warranty claim waiting to happen, and it would be our claim to deal with.
Generally no, and the reason is warranty rather than margin. Manufacturer parts warranties are typically void on equipment supplied outside the authorized distribution chain, and labor warranty cannot reasonably be offered on a machine whose history and storage conditions are unknown.
If you have already purchased equipment, say so at the first conversation and the options can be discussed honestly rather than discovered on the day.
Often, yes. A system that is out of warranty but structurally sound, with parts still available and a cabinet, coil and duct connection in good condition, is frequently worth repairing more than once before replacement makes financial sense.
The assessment gets shown to you with the actual condition of the components rather than a rule about age. Age alone is a poor predictor, and a well maintained unit outlasts a neglected one by years.
The honest answer is that the difference between a mid efficiency and a top efficiency machine is usually smaller in practice than in the rating, because rated efficiency assumes correct airflow, correct charge and a sealed duct system. Fix those first and a mid range unit outperforms a premium one fitted badly.
Where the building envelope and duct system are genuinely in good order, the higher rating starts to pay back, and the calculation for your specific situation can be worked through before you decide.
A deposit covers equipment at order, with the balance due at completion and handover rather than at delivery. Nothing is payable before the scope and the fixed price are agreed in writing.
Third party financing is available and is subject to credit approval by the lender. The terms are theirs, and the application outcome is their decision rather than ours.
Start with the calculation, not the catalog
A conversation about replacement in Lula, GA begins with the building, the duct system and the load, and only then with equipment.
Call the dispatch desk with the age and type of the existing system, any recent repair history and a rough sense of which rooms never perform. That is enough to say whether this is a repair conversation or a replacement one, and to book the right length of appointment.
If you are holding quotes from other contractors, bring them. Comparing scope line by line is more useful than comparing headline prices, and the differences usually sit in the items nobody itemizes.
Included on every installation quote
- Room by room load calculation with the assumptions written down
- Duct system assessment and any remedial work priced in rather than added later
- Permit and inspection handling where the jurisdiction requires it
- Commissioning measurements recorded and handed over at completion
- Manufacturer warranty registration completed on your behalf