Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
HVAC Company in Live Oak, TX
Most HVAC calls we get in Live Oak involve aging systems in post-war ranch homes where attic temperatures top 130°F and original ductwork is crumbling from decades of heat exposure. We’re Coldharbour Heating & Air, and our technicians handle these conditions daily, from emergency compressor failures on 100-degree afternoons to furnaces that quit during the next hard freeze. Call (817) 402-2972 any time, day or night, and a live person will pick up.
Why Live Oak Homes Are Different
Live Oak’s housing stock is almost entirely single-story ranch and tract homes built between the late 1950s and 1980s, when attic insulation standards were minimal and flex duct was still a new technology. That matters because every summer, unconditioned attic cavities in these homes bake to 130-140°F, hardening duct mastic and splitting seams on flex runs that may be original to the house. We’ve opened attic hatches in neighborhoods east of Judson Road and found galvanized duct from the 1960s still in service, or early flex duct so brittle it crumbles at a touch.
The military-transient population near JBSA-Randolph compounds the problem. Rental properties change hands every two or three years, and deferred maintenance stacks up across tenancies. By the time a homeowner or property manager calls us, the system is often running on patched-together repairs with airflow so degraded the compressor is working overtime just to hold 78°F. After Winter Storm Uri in 2021, we also saw a surge of Live Oak homeowners who lost heating entirely and wanted freeze-hardened systems or heat-pump upgrades rather than risk another cold-weather failure.
Our Main Live Oak Services
Here are the three services Live Oak homeowners call us about most often.
AC Repair in Live Oak
AC repair in Live Oak usually means dealing with compressor strain from undersized or mismatched systems, or hunting down duct leaks that are dumping cooled air into a 140°F attic. We carry capacitors, contactors, and refrigerant on every truck, and our technicians are trained on Trane, Lennox, Goodman, and Rheem systems common to this area. AC Repair in Live Oak covers everything from emergency no-cool calls to diagnosing why one room never gets comfortable.

Furnace Repair in Live Oak
Furnace repair in Live Oak ranges from failed igniters and flame sensors on 1980s gas furnaces to heat exchanger cracks we won’t patch because they’re a carbon monoxide risk. The February 2021 freeze taught a lot of homeowners here that their heating systems weren’t as reliable as they’d assumed. Furnace Repair in Live Oak includes full safety testing and a written report on whether repair or replacement makes more sense.

AC Installation in Live Oak
AC installation in Live Oak almost always requires addressing the duct system, not just swapping the outdoor unit. Putting a new 16-SEER compressor on top of leaky 1970s ductwork is like putting a new engine in a car with flat tires. We measure every home, check static pressure, and give you a written fixed price that includes any duct repairs needed to make the system actually perform. AC Installation in Live Oak starts with a load calculation, not a guess based on square footage.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Live Oak
Our technicians train on and carry common parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Live Oak’s older systems, that means we can often repair rather than replace, and when replacement is the better call, we match the new equipment to what your ductwork can actually support. our brands
Pricing for HVAC Company in Live Oak, TX
| Service | Typical range in Live Oak |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes Live Oak jobs toward the higher end: attic duct repairs, electrical upgrades to accommodate modern equipment, and systems that have been mismatched through years of piecemeal fixes. Before any work begins, we hand you a written price that won’t change. That’s The Kingswell Way, not a special offer.
Neighborhoods We Serve in Live Oak
We dispatch from our San Antonio office and typically reach Live Oak homes within 45 minutes to an hour, depending on traffic on I-35 or Loop 1604.
- Live Oak East
- Woodlake
- Willow Springs
- Live Oak Village
- Judson Road area
Service Area – Cities Near Live Oak
Our crews work throughout the northeast San Antonio corridor and beyond. We regularly take calls from Houston, TX, San Antonio, FL, Dallas, GA, and Fort Worth, TX as part of our broader service footprint.
Serving Live Oak, TX - Our Local Coverage Area
We’re based in the Live Oak area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Live Oak
We typically arrive within 45 minutes to an hour for Live Oak calls, depending on current traffic on I-35 and Loop 1604. Our phones are answered by a live person 24 hours a day, and we don’t use voicemail trees or after-hours answering services.
Yes, the City of Live Oak requires permits for full system replacements and major duct modifications. We handle the permit paperwork as part of our installation process, so you don’t need to visit city hall yourself. The permit cost is included in your written price.
Absolutely. We work with property managers and military homeowners regularly, and we understand the tight turnaround windows between tenancies. We provide written documentation of all work performed for lease files, and our 365-Day Done Right Promise transfers to the tenant or new owner.
Ready to get your Live Oak home comfortable again? Call (817) 402-2972 for a free estimate. We’ll give you a written price before any work begins, show up in the window we promise, and back every repair with our 365-Day Done Right Promise in writing.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Live Oak Customers Say
"Honest to a fault. Two companies told me I needed a whole new unit. Coldharbour said mine had years left and just needed a cleaning and a part. Saved me thousands."
- Marcus Reilly"Furnace wouldn't light the first cold morning. The guy walked me through what he was checking so I actually understood it. Replaced the igniter, wrote up the warranty, and it's been warm since."
- Alicia Romero"AC died overnight with a newborn in the house. They bumped us up the list and had it running by noon. I about hugged the guy. Fair price even on a rush call."
- Celeste Ngo







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