Furnace & heating
AC repair
Heat pumps
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Carrier
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GoodmanSeasonal 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.
Get your free estimateFast, Reliable Furnace Repair Across Lost Creek
Most furnace repairs in Lost Creek run between $150 and $700, with the most common jobs (ignitor replacement, flame sensor cleaning, capacitor swaps) landing on the lower end of that range. We get calls from Lost Creek homeowners every week during the first Hill Country cold snap, usually from people standing in a cold house wondering if they should have had the system checked in October. If your heat is out right now, call (361) 204-1605 and a live person picks up, day or night. We dispatch technicians who know Lost Creek’s winding streets, steep driveways, and the particular quirks of furnaces tucked into custom homes with strict aesthetic rules about what can be visible from the road.
Why Cold Harbour Heating and Air Austin Is Lost Creek’s Preferred Furnace Repair Company
Lost Creek doesn’t have strip malls or commercial HVAC outfits on the corner. The neighborhood is almost entirely residential, which means the company you call needs to be comfortable working around custom homes, hidden equipment pads, and homeowners who care a lot about how their property looks. Our technicians arrive in uniform, background-checked, and they know that a furnace tucked behind a fence off Lost Creek Boulevard isn’t going to be a quick curb-side job.
Victor Mancini leads our team, and he’s built the business on something called The Kingswell Way. It’s four written promises: a price before the work starts, a firm arrival window, a clean job site, and a guarantee that brings the technician back free if the repair fails inside 365 days. Every repair gets a written guarantee, not a verbal one. If the same problem comes back within a year, we return and fix it at no charge. Lost Creek homeowners tell us they’ve been burned by companies that changed the price at the door. We put the number on paper before a tool comes out, and it doesn’t move.
We answer the phone 24 hours a day with a real person. No voicemail tree when your furnace dies at 11 p.m. and the house is dropping into the 50s. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, but the crews serving Lost Creek are local and know the area. When you call, you’re talking to someone who can actually get a truck rolling to your street.
Styles & brands we work with







Heat Pump Repair in Lost Creek
Heat pump repair in Lost Creek covers a system that both heats and cools, which is common in this part of the Hill Country where many homes don’t have natural gas lines. Technicians open the outdoor unit, check the reversing valve, test refrigerant pressures, inspect the defrost control board, and verify the compressor is pulling the right amps. Homeowners usually discover something is wrong when the system blows cold air in heat mode, or when frost builds up on the outdoor coil and never melts. Typical heat pump repairs in Lost Creek run $150 to $650, with compressor issues landing at the top of that range and control board replacements toward the middle.
Reversing Valve and Defrost Problems
The reversing valve is the part that flips the system between heating and cooling. When it sticks, a Heat Pump in Lost Creek may run in cooling mode even when the thermostat is set to heat. The defrost board can also fail, leaving ice on the coil during cold weather. Our technicians test both before quoting a repair, and you get the written price first.
Refrigerant and Coil Work in Wooded Lots
Lost Creek’s dense tree cover means outdoor coils pick up oak pollen, leaf litter, and fine dust faster than units in open Austin neighborhoods. A clogged coil drives up head pressure and can trip a high-pressure switch mid-cycle. Part of a proper heat pump repair here is checking airflow across the coil, not just swapping a part and leaving. If you’re on a heavily treed lot off Barton Creek, expect the technician to spend real time on coil cleaning as part of the diagnosis.
Heating Repair in Lost Creek
Heating repair in Lost Creek covers gas furnaces, propane furnaces, and heat pumps, and the work shifts depending on which fuel your home uses. For gas and propane systems, technicians inspect the heat exchanger for cracks, test the gas valve with a manometer, clean the flame sensor, and check venting for blockages. For heat pumps, the focus is on the outdoor unit, the reversing valve, and the auxiliary heat strips. Lost Creek heating repairs run from $150 for a basic diagnostic and minor part to $700 for a blower motor or gas valve replacement. The first step on every call is a full system diagnostic so you know exactly what failed and why, before any repair is quoted.
Propane Furnace Repairs for Properties Without Gas Lines
Many Lost Creek properties sit outside the natural gas network, so they run on propane tanks fed by outdoor regulators. These regulators can take in rain and wind-blown debris during Hill Country storms, which leads to failed ignition or weak burner flame. A propane furnace that won’t light after a heavy storm often has a clogged regulator vent or a fouled burner oriface. Our technicians carry replacement orifaces and test inlet pressure on site so the repair is done in one trip.
Cracked Heat Exchangers and Short Cycling
Lost Creek homes on exposed ridges without tree windbreaks feel the full force of Hill Country wind. Oversized furnaces cycle on and off rapidly in those conditions, and short cycling stresses the heat exchanger until it cracks. A cracked heat exchanger is serious because it can send carbon monoxide into the house. If we find one, we red-tag the unit and give you a written repair or replacement price the same day. We don’t patch over a safety issue to get a quick signature.
Furnace Tune-Up in Lost Creek
A furnace tune-up in Lost Creek runs $80 to $200 and is the cheapest way to avoid a no-heat call on the coldest night of the year. The technician inspects the heat exchanger, cleans the flame sensor, checks gas pressure, tests the blower capacitor, verifies the thermostat wiring, and measures temperature rise across the heat exchanger to confirm the unit runs within manufacturer specs. Lost Creek lots with heavy tree cover mean the filter and blower wheel pick up more pollen than average, so a tune-up here includes real cleaning time, not just a glance. We do tune-ups year-round, but September and October make the most sense before the first Hill Country freeze.
Heat Exchanger Repair in Lost Creek
Heat exchanger repair is the job that matters most for safety. The heat exchanger is the metal chamber that holds the burner flame and transfers heat to the air while keeping combustion gases out of your ductwork. When it cracks, carbon monoxide can enter the home. In Lost Creek, we see cracked exchangers on furnaces from the 1980s and 1990s that have run for decades in custom homes with original equipment. A cracked heat exchanger repair in a Lost Creek furnace usually means replacing the part under warranty if the manufacturer still covers it, or replacing the whole furnace if the unit is past its service life. We always show you the crack with a camera so you’re not taking a stranger’s word for a safety problem.
Ignitor Replacement in Lost Creek
A furnace ignitor is a small ceramic or silicon carbide element that glows hot enough to light the gas burner. When it fails, the furnace tries to start, you hear the blower run, but no flame ever comes. Ignitor replacement in Lost Creek is one of the most common furnace repairs we do, and it typically runs $150 to $280, parts and labor included. The part itself isn’t expensive, but the labor involves opening the burner compartment, removing the old ignitor carefully (they crack if you force them), and verifying the new one draws the right current. Hill Country humidity plus years of heat cycling cause the brittle ignitor to crack, and once it’s cracked, the furnace won’t light at all.
Gas Valve Repair in Lost Creek
The gas valve controls the flow of gas into the burners. When it fails, the furnace either won’t light or the flame is weak and unstable. Gas valve repair in Lost Creek typically runs $200 to $400, depending on the valve type and whether the furnace runs on natural gas or propane. Our technicians test the valve with a manometer to confirm inlet and outlet pressures match spec before condemning the part. In propane systems on Lost Creek properties, a faulty regulator can mimic a gas valve failure, so we check the whole fuel path, not just the valve itself. Replacing a gas valve on a guess is expensive and often wrong.
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AfterBlower Motor Repair in Lost Creek
The blower motor pushes heated air through the ductwork. Blower motor repair in Lost Creek runs $250 to $450 for a standard single-speed motor, or more for variable-speed ECM motors common in higher-end custom homes. Symptoms include weak airflow, a furnace that overheats and trips the limit switch, or a humming sound with no air movement. Lost Creek’s 1970s and 1980s custom homes often still have the original ductwork, and restrictive ducts force the blower to work harder and fail sooner. A routine part of our blower motor repair is measuring static pressure. When it’s high, we’ll explain what that means and whether adding a return or adjusting dampers will keep the new motor from failing the same way.
Common Furnace Repair Problems We See in Lost Creek Homes
- Cracked heat exchangers from wind-driven short cycling. Exposed homes on Lost Creek ridges catch constant Hill Country wind, and an oversized furnace cycles on and off so often the constant expansion and contraction cracks the heat exchanger. We oversized-equipment check every furnace we touch.
- Propane ignition failure after storms. Outdoor propane regulators on Lost Creek properties collect rain, leaf litter, and wind-blown debris in their vents. After a storm, the regulator can’t breathe, gas pressure drops, and the furnace won’t light.
- Blower capacitors killed by pollen and heat. Lost Creek’s dense tree cover means filters load up with oak pollen quickly. A clogged filter reduces airflow, the blower motor runs hotter, and the capacitor (the small cylinder that gives the motor its starting jolt) fails. We keep common capacitor sizes on the truck.
- Limit switch trips from clogged filters on heavily treed lots. Furnaces on lots with heavy tree coverage pull in leaf litter and pollen faster than units in open neighborhoods. When the filter packs up, the heat exchanger overheats and the limit switch kills the burners as a safety measure. The homeowner gets cold air blowing and assumes the system is broken when the real issue is a $15 filter that was overdue by two months.
Trusted Brands We Service in Lost Creek
Our technicians are trained to service nine major residential HVAC brands, and in Lost Creek we work on whatever is already in the house. We regularly repair Carrier and American Standard furnaces in the older custom homes along Lost Creek Boulevard, and we service Bryant and Daikin systems in the newer builds and renovations going in across the neighborhood. Because Lost Creek doesn’t have a commercial HVAC supply house down the street, we stock common parts on the truck so a simple repair doesn’t turn into two or three visits. If your furnace is a brand we don’t name here, ask when you call; the odds are good we still have the parts and the training to handle it.
Pricing for Furnace Repair in Lost Creek, TX
We Also Serve Cities Near Lost Creek
Beyond Lost Creek, our technicians take calls across the surrounding Hill Country and the Austin metro. We provide Furnace Repair in Austin, Round Rock, Pflugerville, and Leander, and the same written guarantees apply everywhere we work. If you’re in one of those cities and your heat is out, call (361) 204-1605 and we’ll send a technician who knows the local streets and the local systems.
Serving Lost Creek, TX - Our Local Coverage Area
We’re based in the Lost Creek 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 Lost Creek
Hard wind passing over an outdoor propane regulator vent can create a pressure drop at the vent opening, which fools the regulator into delivering an inconsistent gas flow to the burners. The furnace lights, then the flame weakens and the system shuts down before the thermostat is satisfied, then repeats. It’s more common on exposed Lost Creek lots where there’s no tree line to break the wind. The fix is usually a regulator vent shield or a regulator relocation, not a new furnace. Call (361) 204-1605 and a technician can test the gas pressure on a windy day to confirm what’s happening.
Yes, and you should insist on one. Original ductwork in 1970s Lost Creek homes was sized for the equipment of that era, and many systems have been swapped for larger units without touching the ducts. A proper load calculation (Manual J) tells you what the house actually needs now, not what was installed when the home was built. Skipping it is how you end up with an oversized furnace that short cycles, wastes propane or electricity, and cracks its heat exchanger early. We’ll do the load calc before quoting a replacement, and we’ll show you the numbers.
The most common cause is a failed ignitor or a dirty flame sensor, not a major mechanical breakdown. When the first cold front of the season hits, furnaces that sat unused for months get asked to light on demand, and the ignitor (the part that glows to light the gas) cracks from the sudden current draw after sitting cold. The flame sensor also gets coated with a thin oxide layer during idle months and may not detect the flame, causing the system to shut down after a few seconds. Both are quick, low-cost repairs. If you’re without heat now, call (361) 204-1605.
Yes. Lost Creek’s residential aesthetic rules mean outdoor units are often hidden behind fences, hedges, or stone walls, which makes access tighter than in neighboring Austin neighborhoods. Our technicians are used to working in those access conditions, and we carry the right ladders, coil tools, and test equipment to service equipment without tearing out shrubs or damaging fence lines. We’ll leave the area as we found it, which is part of The Kingswell Way: leave the place cleaner than we found it.
A weak capacitor shows up as a blower motor that hums but starts slowly, airflow that seems weaker than it used to be, or a furnace that runs for a few minutes then shuts down on a limit trip because the blower isn’t moving enough air. In Lost Creek homes with heavy tree pollen loading the filters, the blower works harder and the capacitor degrades faster. If you notice any of those symptoms, call (361) 204-1605 for a diagnostic. We test capacitors under load, not just by looking at them, and the written price comes before any replacement.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Austin. Coldharbour Heating & Air is an independently owned and operated member of the Kingswell network, answering furnace repair calls in Lost Creek with written pricing and a 365-day guarantee on every job.