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.
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AfterFast, Reliable Furnace Repair Across Somerset
Furnace repair in Somerset typically costs $150-$700 and is often completed in a single visit, with our technicians carrying the propane-specific parts and tools that rural Bexar County properties require. When your furnace quits on a cold night in Somerset, you need someone who shows up prepared for the equipment actually installed here, not a technician trained only for standard natural-gas systems found closer to San Antonio.
We’re Coldharbour Heating & Air, and our Furnace Repair team serves Somerset from our San Antonio dispatch office. We’ve been making the drive south on FM 476 and US 281 long enough to know the difference between a tract home off the new construction corridors and a 1980s manufactured home sitting on five acres with a 250-gallon propane tank and a rooftop package unit. That local knowledge saves time on the diagnostic and money on the fix. Call (817) 402-2972 when you need us. A live person answers the phone, 24 hours a day, every day of the year.
Why Coldharbour Heating & Air Is Somerset’s Preferred Furnace Repair Company
Somerset homeowners have long memories for which contractors actually show up. We’ve built our reputation here by keeping four promises in writing: the price before we start, 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 isn’t verbal. It’s on paper, signed, and handed to you before the technician leaves.
Our response time to Somerset is typically same-day for repair calls placed before early afternoon, and our technicians are background-checked, uniformed, and trained on nine major residential HVAC brands including Goodman, Rheem, and York. We don’t send a parts-chaser who has to order components from San Antonio and return next week. Our trucks carry the ignitors, flame sensors, gas valves, and blower motors that Somerset’s propane-fired systems actually use.
What separates us on Somerset routes is knowing the local conditions that break furnaces here. We understand how a hard freeze empties a propane tank fast, how manufactured home flex duct deteriorates in the south Bexar County humidity, and why a dual-fuel heat pump often outperforms a straight propane furnace on rural lots with no wind shelter. That expertise is earned, not borrowed from a corporate manual.
Gas Furnace Repair in Somerset
Gas Furnace Repair in Somerset means something different than it does twenty miles north in San Antonio proper. Most Somerset addresses sit beyond Atmos Energy natural gas mains, so the “gas” in question is almost always propane, delivered by truck and stored in 250-500 gallon tanks on the property. Our technicians are trained and equipped to diagnose and repair propane-fired furnaces, which carbon up faster when tanks run low or fuel quality dips, fouling burners and tripping flame sensors in ways that natural-gas techs often misread.
When your propane furnace fails in Somerset, we check the tank level first. Low pressure from a near-empty tank can mimic a dozen other problems. Then we inspect the burners for soot, test the flame sensor for proper microamp reading, and examine the heat exchanger for the pitting that propane combustion accelerates in older units. Most repairs run $150-$700, parts and labor included, with a written price delivered before any work begins.
Ignitor and Flame Sensor Service
The silicon carbide hot surface ignitor in a propane furnace cracks from thermal cycling, and the flame sensor films over with combustion residue faster than in natural-gas equipment. We stock both components for Goodman and Rheem units common in Somerset, and we test the gas valve pressure regulator to confirm it’s set for propane’s higher BTU content, not factory-default natural gas settings.
Heat Exchanger Inspection
Propane burns hotter than natural gas, which accelerates metal fatigue in heat exchangers. We use a boroscope camera to inspect for cracks or pitting, and if we find failure, we explain exactly why replacement is safer than patchwork. No scare tactics. Just the condition, the risk, and your options written out with prices.
Furnace Tune Up in Somerset
Furnace Tune Up in Somerset is preventive maintenance shaped by rural conditions: propane soot buildup, dust from unpaved roads, and the hard-freeze cycles that stress heat pumps without auxiliary strips. We recommend a tune-up every fall, before the first cold snap empties everyone’s propane tank at once and service calls back up for days. Our tune-up runs $80-$200 and includes a written report of everything we find, with no pressure to buy additional services.
The technician who arrives at your Somerset property will clean the burners and flame sensor, test the gas valve for proper propane pressure, measure temperature rise across the heat exchanger, and inspect your ductwork for the flex deterioration common in manufactured homes along FM 476. We also check whether your thermostat is staging auxiliary heat correctly, because a miswired or outdated stat can force your propane furnace to carry the full load when a heat pump should be running.
Propane System Calibration
Propane furnaces require precise air-fuel mixture. We use a combustion analyzer to verify CO levels and stack temperature, adjusting the manifold pressure if the burners are running rich and sooting up prematurely. This calibration extends component life and keeps your flame sensor clean longer.
Ductwork and Static Pressure Check
Many Somerset homes, especially manufactured units from the 1980s and 1990s, run undersized flex duct that chokes airflow and overworks the blower motor. We measure static pressure and flag restrictions. Sometimes the fix is a duct modification, not a bigger furnace.
Trusted Brands We Service in Somerset
Our technicians are trained to service nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Somerset customers, we stock the propane conversion kits, flame sensors, and ignitors most commonly needed for Goodman and Rheem furnaces, which dominate the local installed base in both manufactured homes and newer tract construction. Because we carry parts rather than ordering them, most repairs finish in one visit. If your system is a York or Daikin, we have those components too. The goal is simple: diagnose it, fix it, and get your heat running before your propane tank gauge drops into the red.
Common Furnace Repair Problems We See in Somerset Homes
- Propane burner sooting from low tank pressure. When a 250-gallon tank runs below 20% in cold weather, the pressure drop causes incomplete combustion. The furnace still runs, but black soot coats the flame sensor and trips safety shutdowns. We see this repeatedly on rural lots off FM 476 where delivery schedules slip during freeze events.
- Heat pump lockout with no auxiliary heat. Somerset’s exposed properties with no wind shelter lose heat fast on still, cold nights. If the heat pump has no electric heat strips or they’re disabled, the system falls back entirely to propane, draining the tank and cycling the furnace mercilessly until something fails.
- Package-unit heat exchanger failure in 1990s manufactured homes. These rooftop units combine heating and cooling in one cabinet, exposed to summer heat index values exceeding 105°F and winter hard freezes. The heat exchanger metal fatigues faster than in split systems, and replacement often makes more sense than repair on a 25-year-old unit.
- Blower motor burnout from undersized duct. Newer high-efficiency furnaces installed in older Somerset homes with original flex duct face excessive static pressure. The blower works harder, draws more amps, and eventually burns out. We measure and document this before recommending equipment changes.
Pricing for Furnace Repair in Somerset, TX
| Service | Price Range in Somerset |
|---|---|
| Gas Furnace Repair | $150-$700 |
| Furnace Tune Up | $80-$200 |
What drives the final number? Three things: the part that failed, whether we can access it without extensive disassembly, and whether your system needs propane-specific components that differ from natural-gas equivalents. A flame sensor replacement runs toward the lower end. A heat exchanger replacement or blower motor failure on a package unit pushes higher. We give you a written price before any work begins, and that price does not change when the job is done. Estimates are free. Call (817) 402-2972 to schedule.
Because most Somerset properties aren’t on municipal gas, we also evaluate whether your current propane furnace is worth repairing or whether a dual-fuel heat pump would cut your fuel bills and eliminate the panic of an empty tank during a freeze. That conversation costs nothing extra. We lay out the math, the payback, and the written price for either path.
We Also Serve Cities Near Somerset
Our repair crews regularly run routes through Lytle, San Antonio, Helotes, and Converse, carrying the same stocked trucks and written guarantees to each stop. Whether you’re on a rural lot south of Somerset or in a developing subdivision closer to the city, the Kingswell standards apply: say the price before the work, show up in the window given, leave the place cleaner than found, put the guarantee in writing, come back if it fails.
Serving Somerset, TX - Our Local Coverage Area
We’re based in the Somerset 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 Somerset
Yes. Most of our Somerset furnace work is on propane-fired systems, not natural gas. Our technicians carry propane-specific parts and are trained to diagnose the sooting, pressure, and combustion issues that differ from natural-gas equipment. Call (817) 402-2972 for an exact quote - estimates are free.
For most Somerset properties, yes. A dual-fuel heat pump runs on electric down to about 35°F, then switches to propane only in extreme cold. That staging protects your 250-500 gallon tank from draining during a freeze and typically cuts annual heating costs. We provide a written price for both repair and replacement options so you can compare. Call (817) 402-2972 for an exact quote - estimates are free.
Short-cycling with rapid propane consumption usually means your heat pump isn’t carrying its share of the load, forcing the furnace to run constantly. Possible causes: a failed heat pump compressor, disabled auxiliary heat strips, or a thermostat miswired to skip the heat pump stage entirely. We diagnose which component is failing and give you a written repair price before any work begins. Call (817) 402-2972 for an exact quote - estimates are free.
Most furnace repairs in Somerset run $150-$700, with tune-ups at $80-$200. Simple fixes like flame sensors or ignitors fall at the lower end. Heat exchanger work, blower motor replacement, or package-unit repairs run higher due to labor and parts. We hand you a written price before touching a tool. Call (817) 402-2972 for an exact quote - estimates are free.
Yes. Our Somerset routes include both the new construction along FM 476 and US 281 and the older manufactured homes with rooftop package units. Our trucks carry parts for modern split systems and the components that 1980s-1990s package units require. The technician who arrives knows which type of property he’s walking into and comes prepared. Call (817) 402-2972 for an exact quote - estimates are free.
Written by Victor Mancini, Owner at Coldharbour Heating & Air, serving Somerset since 2003.