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.
Fast, Reliable Furnace Repair Across Olmos Park
Furnace repair in Olmos Park typically runs $150-$700 and is usually completed same-day, with most calls answered by a live person within seconds. Our technicians are dispatched from our Dallas-Fort Worth scheduling office and carry parts for Trane, Lennox, Goodman, and Rheem systems so we can fix your heat without waiting on a delivery. If your furnace quit on a cold January night or your heat pump is blowing lukewarm air through those high ceilings on Contour Drive, call us at (817) 402-2972. We answer 24 hours a day, 7 days a week.
Olmos Park isn’t a neighborhood of San Antonio. It’s an independent city, roughly one square mile, with its own government and its own building codes. That matters when you’re hiring someone to work on your furnace. A contractor who knows San Antonio’s permit process cold can still stumble here, because Olmos Park pulls its own permits through its own city hall. We’ve done enough work in these 1920s-1950s estate homes to know the difference. Our Furnace Repair team handles the paperwork correctly every time.
Why Coldharbour Heating & Air Is Olmos Park’s Preferred Furnace Repair Company
We’ve been serving Texas homeowners since 2003 as an independently owned and operated member of the Kingswell network. The Kingswell Guarantee isn’t a slogan. It’s four written promises on every job: a price before the work starts, a firm arrival window, a clean job site, and our 365-Day Done Right Promise. If a repair fails within a full year, we come back and correct it at no charge. That guarantee is written down, not verbal, and the technician hands it to you before leaving.
Our technicians are background-checked, uniformed, and trained on nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. In Olmos Park, that training matters more than usual. These homes weren’t built for central heating. They were retrofit decades ago, often with ductwork crammed into spaces never designed for it. A tech who only knows suburban tract houses will miss what we see regularly: uninsulated original chases, layered duct systems from multiple eras, and capacity mismatches that strain every component.
We were called to a 1948 Spanish Colonial Revival on Contour Drive where the homeowner reported the furnace heating only half the upstairs bedrooms. Our tech found a failing blower motor dragging down static pressure and a heat exchanger with visible cracks, worsened by a return chase buried in uninsulated 1950s framing that was leaking air into the attic. We replaced the blower motor, isolated the compromised heat exchanger, and re-sealed the chase, restoring even heat to the second floor and confirming our refrigerant charge and thermostat calibration on the accompanying heat pump side of the system.
Phones are answered by a live person around the clock, every day of the year. No voicemail trees. No “call back in the morning” when your furnace quits at 2 a.m. and the temperature is dropping through your plaster walls.
Furnace Maintenance in Olmos Park
Furnace Maintenance in Olmos Park is preventive work on heating systems that often run harder than their original designers intended, given the large square footage and high ceilings of local homes. A tune-up covers combustion analysis, heat exchanger inspection, blower amp draw, gas pressure verification, and a full written report of what we found. Most Olmos Park homeowners schedule this in early fall before the first cold snap, though we maintain systems year-round. A Furnace Maintenance (Tune-Up) runs $80-$200.
What We Check in Older Systems
Many Olmos Park furnaces are replacements shoehorned into mechanical spaces never meant for modern equipment. We measure temperature rise across the heat exchanger, check for proper venting through original masonry or retrofitted flues, and inspect condensate drains for scale buildup from Edwards Aquifer hard water. The written report tells you exactly what we found and what it means for the coming season.
Why Static Pressure Matters Here
Those layered duct systems create resistance the blower motor wasn’t sized for. During maintenance, we measure static pressure and compare it to manufacturer specifications. High readings explain why your system runs constantly without keeping up, and they predict blower motor failure before it happens.
Heat Pump Repair in Olmos Park
Heat Pump Repair in Olmos Park addresses systems that provide both heating and cooling, common in homes where dual-fuel setups were added during later renovations. A heat pump pulls heat from outdoor air even in cold weather, with a gas furnace as backup when temperatures drop too low. When the heat pump side fails, the furnace runs alone, spiking utility bills and often revealing ductwork problems that were hidden by the heat pump’s more even output. Heat Pump Repair runs $150-$650.
Reversing Valve and Defrost Issues
The reversing valve switches your heat pump between heating and cooling modes. In Olmos Park’s humid winter conditions, these valves can stick or leak refrigerant. Defrost controls also fail, causing ice buildup on the outdoor coil. We test both components and verify refrigerant charge, because these systems are unforgiving of small errors.
Heat Pump and Furnace Coordination
Many local homes have heat pumps paired with original or replacement furnaces that were never properly commissioned as a system. We check the changeover temperature, the point where the thermostat calls for backup heat, and we verify that both stages work together rather than fighting each other. Poor coordination is why some rooms never feel right even when both units are “working.”
Trusted Brands We Service in Olmos Park
Our trucks carry common parts for Trane, Lennox, Goodman, and Rheem systems, the brands we encounter most often in Olmos Park’s renovated homes. We don’t have to order a blower motor or igniter and make you wait three days. Our technicians are trained to the same standards on Carrier, American Standard, Bryant, York, and Daikin as well. If your system is one of those nine brands, the tech who shows up can diagnose it, repair it, and guarantee the work for 365 days under our written Done Right Promise.
Common Furnace Repair Problems We See in Olmos Park Homes
- Uninsulated duct chases acting as heat radiators. Those original 1950s-60s duct chases buried in your walls or attic framing are often completely uninsulated by modern standards. In a 130°F attic, they radiate heat outward instead of delivering it to your rooms. We check chase surface temperatures before condemning the furnace itself.
- Layered ductwork from decades of partial retrofits. Abandoned trunk lines running alongside newer flex duct create capacity mismatches and high static pressure. The blower motor works harder, the heat exchanger runs hotter, and both fail prematurely.
- Edwards Aquifer scale in condensate systems. San Antonio’s notoriously hard water builds scale in condensate lines and any hydronic components, causing nuisance lockouts and corrosion that standard service calls miss if the tech doesn’t know to look for it.
- Heat exchanger cracks in oversized replacement furnaces. When a modern high-BTU furnace is installed in a system with restricted airflow from old ductwork, the heat exchanger cycles at excessive temperatures. We find cracks that other companies missed because they didn’t measure temperature rise or static pressure.
Pricing for Furnace Repair in Olmos Park, TX
We give you a written price before any work begins. That price does not change when the job is done. No exceptions.
| Service | Price Range in Olmos Park |
|---|---|
| Furnace Repair | $150-$700 |
| Furnace Maintenance (Tune-Up) | $80-$200 |
| Heat Pump Repair | $150-$650 |
What moves a job toward the higher end? Heat exchanger replacement, major electrical work, or accessing equipment in cramped original mechanical spaces. What keeps it lower? Igniter replacement, flame sensor cleaning, or simple control board repairs. We diagnose first, explain what we found, and hand you the written price. You approve it before we pick up a tool. Estimates are free. Call (817) 402-2972 to schedule.
We Also Serve Cities Near Olmos Park
Our Furnace Repair in Olmos Park crews also respond to calls in Houston, San Antonio, Dallas, and Fort Worth. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, with technicians serving Olmos Park locally for faster response.
Serving Olmos Park, TX - Our Local Coverage Area
We’re based in the Olmos Park 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 Furnace Repair in Olmos Park
Olmos Park is its own city with its own permitting authority, completely separate from San Antonio Development Services. We pull all required permits through Olmos Park city hall for work done within city limits. If your contractor assumes San Antonio rules apply, your job can be delayed or red-tagged. Call (817) 402-2972 and we’ll handle the permit correctly from the start.
The buried duct chases from your home’s original 1950s-60s central HVAC retrofit are likely uninsulated and leaking heat into the attic or wall cavities. In a 130°F attic, these chases act as radiant heat exchangers working against you. We measure surface temperatures and pressure balance before assuming the furnace is the problem. A chase re-seal or insulation retrofit often fixes what a new furnace couldn’t.
Edwards Aquifer water is mineral-heavy and accelerates scale buildup in condensate drains, humidifier components, and any hydronic elements in your system. Scale causes nuisance lockouts, corrosion, and premature component failure. During repair calls, we clear and treat affected components and recommend maintenance intervals based on your actual water conditions, not a generic schedule.
Most furnace repairs in Olmos Park run $150-$700, with simpler fixes like igniter or flame sensor replacement at the lower end and heat exchanger or blower motor work toward the higher end. We provide a written, fixed price before starting any work. Call (817) 402-2972 for a free estimate.
Yes. Our technicians are trained on Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard systems. In Olmos Park’s older homes, brand knowledge matters less than understanding how that equipment interacts with retrofit ductwork and original building envelopes. We bring both. Call (817) 402-2972 to schedule service on any major residential brand.
Ready to get your heat working right? Call (817) 402-2972 now. A live person will answer, 24 hours a day, and we’ll give you a firm arrival window and a written price before any work begins. Every repair is backed by our 365-Day Done Right Promise, guaranteed in writing.
Written by Victor Mancini, Owner at Coldharbour Heating & Air, serving Olmos Park since 2003.







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