Boiler Replacement, Explained Straight.
When a boiler truly reaches the end, you face a fork most contractors will not explain honestly: replace it with another boiler and keep the hydronic comfort you love, or convert to a different system entirely. Both paths have real costs and real tradeoffs, and the right answer depends on your house, your loop, and your priorities. We lay out both with numbers.
Heating · Burnet & Central Texas
The Fork in the Road, Explained
Path one is like-for-like: a new boiler on your existing loop. Modern condensing boilers wring far more heat from the same fuel than the veteran they replace, and the comfort character your radiators or radiant floors deliver stays exactly as it was. This path preserves what hydronic owners love, silence, even warmth, no blowing dust, and usually costs less than a whole-system conversion. Its honest requirements: the loop itself must be sound, and condensing efficiency depends on the system running at temperatures your emitters can work with, which we verify rather than assume.
Path two is conversion, typically to a heat pump with ductwork or ductless heads. It makes sense in specific situations: a loop with chronic leak or corrosion problems that would undermine any new boiler, a house that also lacks good cooling, or an owner planning around electric rates and away from fuel. Conversion costs more up front and changes the character of the heat, and anyone who pretends forced air feels identical to radiant is selling something. We will tell you plainly which category your situation falls into, because installing the wrong path is a fifteen-year mistake.
Either way, the decision starts with an honest autopsy of the old machine. Cracked exchanger, dead controls with no parts path, or chronic chemistry damage: replacement is real. A big repair on an otherwise sound veteran: sometimes the repair is still the right call, and we will say so.
Local conditions shape this work more than most homeowners expect. Our summers stack week after week of hundred-degree afternoons, which means long compressor runtimes, drain lines moving gallons of condensate a day, and electrical components living near their limits from June through September. Lake humidity keeps the corrosion clock running even in mild months, and spring pollen packs filters fast enough to choke airflow in weeks. A tech who works this exact hundred miles every day builds all of that into the boiler replacement call: what to check first, which parts fail early here, and which settings survive a Texas cooling season instead of merely a laboratory one.
Heating
What a Proper Boiler Swap Involves
For the like-for-like path, this is the work that separates an installation from an appliance delivery.
- Heat loss calculationThe new boiler gets sized to the house and the emitters, never to the old nameplate. Oversizing wastes fuel and short-cycles the new machine from day one.
- Loop health assessmentPressure test, chemistry test, and a hard look at pumps, valves, and the expansion tank. A new boiler on a sick loop inherits every one of its diseases.
- Correct near-boiler pipingCondensing boilers live or die by piping design and return temperatures. This is where hydronic experience shows, and where shortcuts hide.
- Venting done to specModern boilers vent differently than the old atmospheric units. Correct materials, correct slopes, correct terminations, verified rather than assumed.
- Fresh water treatmentThe new loop gets cleaned, filled, and inhibited properly, so Hill Country water starts protecting your investment instead of eating it.
- Full commissioningCombustion analyzed and tuned, controls configured, every zone proven under heat, and the baseline readings documented in your file.
Skip the reading, make the call.
Two minutes on the phone with a real tech beats an hour of internet research. Describe the symptom in your own words and get a straight answer about cause, timing, and cost.
Why Off Duty
Straight Talk on Cost and Value
Boiler replacement is real money, more than standard forced-air equipment, and pretending otherwise helps nobody. What we can do is make every dollar visible: the quote itemizes equipment, piping, venting, treatment, and commissioning, the efficiency gain gets translated into projected fuel savings you can sanity-check, and financing options come with actual numbers attached. If the conversion path is cheaper or better for your situation, you will see that math too, side by side, before anyone asks for a decision.
The payoff for doing it right is long. A properly sized, properly piped, properly treated condensing boiler on a healthy loop is a twenty-year machine delivering the best-feeling heat available, at fuel bills the old veteran could never touch. That outcome is entirely determined in the installation week, which is why every item on the list above gets done and documented, and why our boiler installs come with photographs you can hold the next contractor to, decades from now.
The process here never changes, whether the job is boiler replacement 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.
A word about waiting it out. Central Texas weather does not leave much grace period, and a system limping in May is a system down in July, when everyone else’s is down too and the schedule is at its tightest. The early call gets the easy appointment and, usually, the smaller invoice. The July call gets the queue. Texas rewards the prepared, and so does our schedule.
As for who shows up: this is an owner-operated shop, so the tech at your door is usually Bryce himself, a second-generation HVAC man with ten years on the tools, licensed, insured, and photographed doing exactly this kind of work in the job gallery. No commissioned salesman rides along, and nobody at this company earns a bonus for talking you into more than you need.
Coverage is the same as everything else we do: Burnet at the center, about 100 miles in every direction. That means the lake towns, Marble Falls, Kingsland, Horseshoe Bay, the corridor through Leander, Cedar Park, and Georgetown, plus Austin, Bell County, and the outer ring through Waco, San Marcos, New Braunfels, Fredericksburg, and Boerne. The full sixteen-county list lives on the service areas page, and if you sit just past the edge of it, call anyway and get an honest answer.
Diamond Contractor
Mitsubishi’s top ductless credential, earned with factory training.
Second Generation
Raised in the trade, ten years on the tools before the name went on a truck.
Warranty Authorized
JB and Mitsubishi warranty work: we file the claim, you skip the fight.
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
Every trade job carries an invisible line item: the standard it was done to. On boiler replacement work, ours reads like this. The diagnosis is proven with instruments, because guessing is expensive and it is your money on the table. The parts that go in are parts we would put in our own house, matched to spec instead of whatever was cheapest on the shelf. The workmanship follows the manufacturer’s book and the Texas code book both, because shortcuts hide for exactly one season and then bill you with interest.
When the work is finished, it gets tested the way it will actually be used: under load, at temperature, with the readings written down. Then the area gets left the way we found it or cleaner, the old parts get shown to you on request, and the invoice matches the number you already heard. If anything acts up afterward, you call the same number and the same person answers. That is the entire warranty conversation most customers ever need, and it is why the reviews keep saying the same three things: honest, fair, showed up.
Boiler Replacement Questions
Asked Before We Roll a Truck
The ones the phone line hears most for this service, with the answers given at full length instead of sales-brochure length.
How do I know my boiler is truly done?
Three verdicts are usually final: a cracked or badly scaled heat exchanger, control systems that are obsolete with no parts path, and chronic corrosion driven by years of untreated water. Short of those, judgment applies: a repair bill crowding half the replacement cost on a machine past twenty years usually says replace, while the same bill on a fifteen-year-old in good chemistry might say repair. We inspect, price both paths honestly, and tell you which one Bryce would pick for his own house. The machine’s age alone is never the whole answer.
Should I keep hydronic or convert to a heat pump?
Keep hydronic if you love the comfort character, the loop is sound, and heating is your main concern: nothing matches radiant and radiator warmth, and a condensing boiler modernizes the fuel bill. Convert if the loop itself is the problem, if the house also needs proper cooling, or if you are deliberately moving away from fuel. Cost, comfort, and the house’s bones all vote. We walk each factor with you honestly, and we install both paths, so the recommendation is not steered by what we happen to sell.
What efficiency gain is realistic?
Old atmospheric boilers commonly run in the seventies, percent-wise, and tired ones lower. Modern condensing units are rated in the mid-nineties, but the honest number depends on your emitters: condensing efficiency arrives when return water comes back cool, which radiant floors do beautifully and high-temperature radiator loops do less of. We look at your actual system and give you a realistic expectation rather than the brochure number. Even at the conservative end, the fuel savings on a Central Texas heating season are noticeable.
How long does a boiler replacement take?
Plan on one to three days depending on piping and venting scope. A clean swap with sound near-boiler piping can land in a long day. Re-piping for condensing return temperatures, new venting runs, or loop remediation stretches it honestly to two or three. You get the real schedule with the quote, heat is never left off overnight in cold weather without an agreed plan, and the job ends with commissioning and a full walkthrough of your new controls, never with a disappearing truck.
Is financing available for this?
Yes, and on boiler-sized numbers it matters. Ask when you call and we will walk through the options with real monthly figures rather than teaser rates, so you can weigh the paths with complete information. We would rather set up sane payments on the right system than watch you commit to the wrong one because it was marginally cheaper up front. Insurance also occasionally plays a role, storm or flood-damaged systems, and we handle that documentation properly when it applies.
Related work: Boiler Installation · Boiler Repair · HVAC Financing · see real jobs in the gallery
See Both Paths Priced Straight
A free look at the old machine, honest numbers on boiler and conversion options, and no pressure either way. Prefer to write it out? Send the form and we call you back.
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