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Refrigerant Recharge, Explained Straight.

A proper recharge is measurement, never a squirt of gas and a wave. The charge gets verified against factory specification, the reason it was low gets investigated, and the refrigerant that goes in gets weighed. Anything less is a drive-by gas sale, and this trade has too many of those already.

Air Conditioning · Burnet & Central Texas

Charging Is a Measurement, Not a Pour

Refrigerant charge is a precision quantity. Factory specification sets it to the ounce for a reason: a system ten percent low loses capacity and ices coils, while an overcharged one, and overcharging is the classic sin of casual top-offs, runs high pressures that stress the compressor and can slug it with liquid. The beer-goggles method, add gas until the pressures look sorta right on a hot afternoon, misses in both directions, because target pressures move with outdoor temperature, indoor load, and metering type. Real charging works from superheat and subcool calculations or weighed charge against the data plate, and it treats the gauge readings as evidence rather than vibes.

The second honesty of recharge work: low charge always has a reason, and the reason is a leak. Refrigerant is not consumed, so a recharge without at least a serious leak conversation is a treatment plan that ignores the diagnosis. Our recharge visits include leak assessment as standard, electronic detection over the usual suspects, an honest read on leak rate from how low the system had drifted and how fast, and a straight recommendation: chase the leak now, or in genuinely marginal cases, recharge with dye and monitor. You choose with the facts, but the facts come with the visit.

And the refrigerant itself gets handled like the regulated commodity it is: recovered legally when removal is needed, weighed going in, documented in your file with the readings, so next season’s comparison is data instead of memory.

There is also a Hill Country layer to this work that out-of-area advice never accounts for. Limestone terrain around Burnet soaks up heat all day and radiates it back through the evening, so equipment here runs longer and later than the same unit would in a milder market. Humidity rolling off Buchanan, LBJ, and the rest of the Highland Lakes chain works on coils, drain lines, and cabinet steel every month of the year. Then winter shows up sideways: a sixty-degree afternoon collapsing into an overnight freeze finds every marginal component in the county at once. Doing recharge work correctly here means doing it for this climate, with parts choices and settings that respect what Central Texas actually does to machinery.

Gauges on during a refrigerant charge verification in Burnet, TX Weighing in refrigerant at a Central Texas AC system

Air Conditioning

What an Honest Recharge Includes

Compare this list against the ten-minute gas-and-go version. The difference is what you are actually buying.

Charge verified against spec

Superheat, subcool, and the data plate, never eyeball pressures. The target is the factory number for your exact system.

Refrigerant weighed in

Ounces measured on a scale, recorded in your file. Weighing is the difference between charging and guessing.

Leak assessment included

Electronic sweep of the likely exits, plus an honest read on how fast you are losing charge and what that means.

Performance proven after

Temperature split and pressures documented post-charge, so the improvement is measured rather than assumed.

The refrigerant reality briefing

R-22 or R-410A economics explained straight, because which gas you own changes every future decision.

Dye option for monitoring

Where chase-it-now is not chosen, UV dye goes in with the charge so the next visit finds the exit fast.

Not sure this is your problem?

Call anyway. We name the likely cause on the phone for free, and if it turns out to be something small you can handle yourself, we say exactly that and save you the visit.

Call (512) 925-3090
Weighing in refrigerant at a Central Texas AC system

Why Off Duty

Why We Refuse to Be a Gas Vendor

A shop can make easy money selling refrigerant to the same leaking systems every May, and some build their summer on it. We decline the model for practical reasons beyond the ethical one: chronically low systems generate emergency calls that disappoint their owners, overcharged systems from careless top-offs generate compressor failures that disappoint them worse, and both kinds of disappointment carry our name once we have touched the system. So the recharge visit tells the whole truth: how low you were, the likely why, what the honest options cost, and what we recommend. Plenty of customers still choose recharge-and-monitor for a slow leak on an aging system, and that is a legitimate choice, made with eyes open, dye circulating, and next steps understood.

One special case deserves its paragraph: the pre-summer charge verification on a healthy system. Charge checks belong inside a proper tune-up rather than as an annual standalone ritual, because a sealed system that needed no gas last year and needs none this year is simply healthy. If someone has been selling you a yearly pound as routine maintenance, you have been financing their truck, and we will happily show you what your system actually holds.

The process here never changes, whether the job is recharge work or a full system swap. Step one, you call (512) 925-3090 and a human answers, around the clock. Step two, we test until the real cause is proven, because parts-swapping on a hunch is how invoices grow. Step three, you get the failure, the fix, and the exact number explained to the point before we touch a thing. Step four, we do the work to spec and prove it under load before we leave. Our customers keep writing reviews about exactly this rhythm, which tells us to keep it.

On pricing, the policy is the same as everything else here: out loud and up front. The visit cost gets stated on the phone before anyone drives anywhere. The repair price gets stated after diagnosis and before work. No packages with hidden contents, no commission-driven upsell in the truck, and no number on the invoice you did not already hear.

Worth saying plainly: this is not a problem that ages well. Systems compensate quietly right up until they cannot, and the failure that finally announces itself usually costs more than the one caught early would have. If your gut says something is off, that instinct is worth one free phone call. The worst case is we tell you everything sounds normal, which is a pretty good worst case.

Who does the work matters as much as what gets done. Off Duty is owner-operated: the person diagnosing your system is the person whose name carries the company, trained in the family trade and seasoned by ten years of Central Texas installs and repairs. You can see the standard in real job photos, and you will see it again in your own equipment closet.

We run this work all over the map: Burnet and the Highland Lakes first, then the whole hundred-mile circle, Marble Falls, Georgetown, Round Rock, Austin, Killeen, and out to Waco and Boerne. The full sixteen-county roster is on the service areas page. Wherever you sit on it, the same truck standard applies: the same tech, the same instruments, the same price-before-work rule, whether the drive took ten minutes or ninety. Distance changes the arrival window, never the workmanship.

M

Diamond Contractor

Mitsubishi’s top ductless credential, earned with factory training.

2

Second Generation

Raised in the trade, ten years on the tools before the name went on a truck.

JB

Warranty Authorized

JB and Mitsubishi warranty work: we file the claim, you skip the fight.

24

Open 24 Hours

A real person answers the phone at any hour, every day of the year.

The Standard

How This Work Gets Done Here

A job like this is a chain of small decisions nobody watches: which part, which setting, which clearance, which step gets skipped when the attic hits 130 degrees. Our answer to all of them is the same. Do it the way the book says, the way the second generation was taught, the way you would want it done if the address were your own. That means proven diagnosis before parts, correct materials over convenient ones, and procedure followed all the way through the parts of the job that never show.

It also means finishing properly. The system gets verified under working load, the readings get documented, the old components get shown on request, and you get an explanation in plain English rather than trade jargon. The price never moves between the quote and the invoice. If anything about the work ever needs a second look, the phone number on your receipt rings the person who did it. Simple system, kept promises, reviewed in public by the people it was kept to.

Refrigerant Recharge Questions

Asked Before We Roll a Truck

Real questions from real Central Texas customers, answered the same way we answer them on the phone: straight.

How do I know if my AC is low on refrigerant?

The classic signature: cooling that weakens gradually rather than dying suddenly, longer runtimes for less comfort, ice appearing on the copper lines or the indoor coil, and sometimes a faint hiss near the coil. Definitive confirmation is instrument work, pressures interpreted through superheat and subcool against your system’s specification. Worth knowing: plenty of low-refrigerant lookalikes exist, dirty coils and airflow problems mimic the symptoms, which is why the diagnosis deserves gauges rather than assumptions. If a tech declares low charge without connecting anything, ask what the reading was.

How much does a recharge cost?

Two components, both stated before work: the visit and diagnostic effort, and the refrigerant itself, priced per pound and weighed in front of the file. The gas price depends heavily on which refrigerant you own, R-410A remains reasonable, while R-22 pricing reflects a phased-out commodity and honestly changes the conversation from recharge toward repair-or-replace on most systems that use it. What never appears: mystery gas quantities, unweighed top-offs, or the desperation markup for a hot house. The number comes first, out loud, whatever the hour.

Is it normal for a system to need refrigerant every year?

No, and this might be the most financially useful sentence on the page. A sealed refrigerant circuit consumes nothing; a healthy system holds its charge for decades. Annual top-offs mean an annual leak, and the pound-a-year pattern means the leak is real and probably growing. Normalizing that pattern is how homeowners spend leak-repair money several times over without ever getting the repair. If yearly gas has become your routine, bring us the history, we will find the exit, price the real fix, and end the subscription one way or another.

Can you overcharge an AC system? What happens?

Absolutely, and casual top-offs do it constantly. Excess refrigerant floods the condenser, drives head pressures up, makes the compressor work harder and hotter, and in bad cases sends liquid refrigerant where only vapor belongs, toward the compressor, which is a slugging risk that shortens its life measurably. Overcharge symptoms even mimic undercharge to careless reading, poor cooling, strained running, which leads to the tragicomic spiral of adding more. This is the entire argument for charging by weight and calculation: the correct amount is a number, and the number wins.

My system is R-22. Should I even bother recharging it?

The honest fork, with real numbers attached at the visit. A small top-off on an R-22 system with a slow leak can be rational triage to cross a summer, priced eyes-open at collectible-gas rates. A significant refill, multiple pounds, routinely approaches meaningful money that buys nothing permanent, on equipment already past its design life. That money usually serves you better as the down payment on modern equipment that cools better, costs less to run, and uses refrigerant priced like a commodity rather than an heirloom. We will lay out both paths and tell you which one Bryce would take at his own place.

Charged by the Numbers

Verified against spec, weighed on a scale, leak-checked as standard, documented in your file. Prefer to write it out? Send the form and we call you back.

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Off Duty Heating and A/C

Off Duty

Heating & A/C · Burnet, Texas

Off duty name. On duty service.

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