License TACLA00109814C 24/7 Emergency Service Austin & Central Texas
service@512mechanical.com
Boilers & Hydronics

Commercial Boiler Repair & Service in Austin, TX


Central Texas does not think about heating until the week it matters, and that is exactly when boiler problems surface. We service hot water and steam boilers, pumps and hydronic piping across the Austin metro.

The Central Texas Problem

Equipment that sits idle, then gets asked for everything


Boilers in this climate have an unusual duty profile. They may sit essentially unused from April through October, then get called on hard during a cold snap or a hard freeze — often with no gradual ramp-up. Equipment that sits idle develops problems that only appear under load: seized pumps, stuck valves, failed ignition components, corroded sections, waterlogged expansion tanks.

The buildings that get through a Texas freeze without a heating failure are the ones that commissioned the boiler in the fall, not the ones that discovered a problem at 6 a.m. on the coldest morning of the year. A fall startup and combustion check is one of the cheapest pieces of insurance a facility manager can buy in this market.

We service hot water and steam systems, condensing and non-condensing equipment, and the hydronic loop around them — pumps, heat exchangers, expansion tanks, air separators, valves and piping. Same as with chillers, we read the loop rather than just the appliance.

Boiler Services

What we service


  • Hot water boilers, condensing and non-condensing
  • Low and high pressure steam boilers
  • Burner service, ignition and flame safeguard
  • Combustion analysis and efficiency tuning
  • Operating and limit control calibration
  • Low water cutoff testing and replacement
  • Heat exchanger inspection, cleaning and replacement
  • Circulating pumps, seals and couplings
  • Expansion tanks, air separators and make-up water
  • Zone valves, mixing valves and actuators
  • Hydronic piping repair and system flushing
  • Water treatment coordination and testing
Before The Cold

Fall boiler commissioning


A short seasonal visit that prevents most of the failures we get called out for in January.

Fire and verify

We bring the system up under real load, verify ignition and staging, and confirm the boiler actually reaches and holds setpoint before you need it to.

Combustion analysis

Flue gas readings, combustion tuning and efficiency verification — which affects your gas bill every hour the system runs, not just safety.

Safety controls

Low water cutoffs, pressure and temperature limits, relief valves and flame safeguard all tested rather than assumed.

The loop

Pumps run, expansion tank charged, air purged, valves stroked and strainers cleaned, so heat actually reaches the far end of the building.

Where We Work

Serving the Austin metro and Central Texas


Boiler and hydronic service for schools, healthcare, multifamily, hospitality and industrial facilities across Central Texas.

Questions

Frequently asked questions


When should a commercial boiler be serviced in Central Texas?

Schedule the annual service in early fall, before the first cold front. Boilers here sit idle most of the year and then get asked for full output with no warm-up period, which is exactly the condition that exposes seized pumps, failed ignition components and stuck valves. A fall commissioning visit catches those on your schedule instead of during a freeze event when every mechanical contractor in the metro is already booked.

Do you handle steam as well as hot water systems?

Yes. We service low and high pressure steam boilers along with the traps, condensate return and piping that go with them, as well as hot water systems both condensing and non-condensing. Steam systems in older Central Texas buildings often need as much attention on the distribution side as on the boiler itself.

Can you help us prepare for a hard freeze?

Yes, and it is worth doing before a freeze is in the forecast. Beyond boiler commissioning, freeze preparation covers heat trace verification, outdoor piping and exposed lines, make-up air units, freeze stats on air handlers, and confirming that your building automation will actually respond the way you expect. Buildings that plan this in October fare very differently from ones that react in February.

Request Service or a Quote

Let's get your building running right


Tell us what is going on and we will get a technician or an estimator on it. For anything urgent, call — that is always the fastest path.

Request service or a quote

Urgent? Call (512) 316-9646 — someone answers 24/7.

Equipment down right now?

Emergency commercial HVAC and chiller response across Austin and Central Texas — nights, weekends and holidays.

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