Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
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 Leon Valley
When your furnace quits on a cold January morning in Leon Valley, you need a crew that knows exactly what they’re walking into. We understand the homes here: the 1960s slab-on-grade brick houses off Evers Road, the older neighborhoods north of Bandera Road, and the split-levels near Huebner that still run original equipment. We also offer Leon Valley AC Repair, and our furnace repair in Leon Valley typically costs between $150 and $700 - we can usually have a background-checked, uniformed technician at your door the same day. Call (254) 271-2545 and you’ll speak to a live person, not a voicemail queue.
Why Meadowsweet Heating and Air San Antonio Is Leon Valley’s Preferred Furnace Repair Company
We didn’t start by opening a generic location and printing Leon Valley on the van. We learned this city by working its attics, closets, and crawlspaces. Luis Serrano leads our team with a simple rule: know the housing stock before touching the furnace. That’s why our Furnace Repair technicians arrive ready for tight attic access doors, undersized returns, and panels that were built before high-efficiency furnaces existed.
Every job starts with a written price before any work begins. Every technician is background-checked and wears shoe covers inside your home. When the work is done, we send a photo of the clean-up before we leave. That’s the Cedarwell Care Promise, and it’s how we’ve earned trust throughout Leon Valley. For families with kids and pets, that means no boots on the carpet, no tools left on the kitchen counter, and no surprise charges after the fact.
We also service nine major furnace brands, including Goodman, Rheem, and York. If your Leon Valley home has a furnace from the 1970s and you’re not sure whether to repair or replace it, we’ll give you an honest assessment with dollar figures, not pressure. Our 365-Day Done Right Promise stands behind the work. If it’s not done right, we make it right. That’s the whole guarantee.
Styles & brands we work with
Heating Repair in Leon Valley
Heating Repair in Leon Valley usually means restoring heat to a home that was built before modern efficiency standards, often with a furnace that’s been patched together for decades. The job involves diagnosing the ignition sequence, checking the heat exchanger for cracks, testing gas pressure, and inspecting duct static pressure. In Leon Valley, aging gas valves and corroded ignitors are the most common culprits. A straightforward repair typically runs $150 to $450. More involved work, like replacing a blower motor or repairing a cracked heat exchanger, lands between $450 and $700.
Ignitor and Gas Valve Work
Furnaces from the 1980s and 1990s use hot surface ignitors that fail after thousands of heating cycles. In Leon Valley’s older homes, we replace these on a regular basis. The gas valve is the other frequent failure point. We test it with a manometer to verify proper pressure before calling it good.
Blower Motor and Static Pressure Checks
Many Leon Valley homes have ducts that were undersized when the house was built. That creates high static pressure, which wears out blower motors prematurely. We measure static pressure on every repair call, because replacing a blower motor without checking the ducts often means replacing it again in two years.
Boiler Repair in Leon Valley
Boiler Repair in Leon Valley is a specialized call. While most homes here use forced-air furnaces, a handful of older and custom-built properties around the city still rely on hydronic heat. Boiler work involves checking the circulator pump, the expansion tank, the pressure relief valve, and the zone valves that send hot water to different rooms. A simple fix like a faulty thermostat or air-locked circulator can run $150 to $300. Replacing a failing pump or fixing a leaking supply line often lands in the $350 to $700 range.
Circulator Pump and Zone Valve Replacement
When one room in a Leon Valley boiler-heated home stays cold, the problem is usually a stuck zone valve or a circulator that’s lost its prime. We diagnose the loop, confirm the electrical signal, and replace only what’s failed.
Pressure and Expansion Tank Service
Leon Valley’s hard water causes mineral buildup inside hydronic systems. That shortens the life of expansion tanks and clogs pressure reducers. We flush the loop, test the fill valve, and verify the pressure relief valve opens at the correct setting before we leave.
Trusted Brands We Service in Leon Valley
We service equipment from Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. In Leon Valley, we regularly work on original Lennox and Carrier furnaces from the 1970s that are still limping along, plus newer Goodman, Rheem, and York systems that have been installed over the years. We keep common parts stocked for faster turnaround, and anything we don’t have in the van we can typically source the same day. That matters when your home has been without heat overnight.
Common Furnace Repair Problems We See in Leon Valley Homes
- Cracked heat exchangers from hard-water corrosion. Leon Valley’s mineral-heavy water accelerates rust inside older furnaces. A crack here doesn’t just mean a cold house; it can release carbon monoxide. We test with a combustion analyzer on every call, not just a visual look.
- Undersized ductwork causing premature blower failure. Slab-on-grade homes from the 1960s and 1970s often have duct runs that are too small for the furnace they feed. That high static pressure kills blower motors years early.
- Electrical panels that can’t handle modern amp draw. Homes built between 1965 and 1985 in Leon Valley often have panels rated for far less than a new high-efficiency furnace needs. Breaker trips and flickering lights during a heat cycle are warning signs we check for before recommending any upgrade.
- Attic access doors too small for new air handlers. This is the Leon Valley paradox: newer equipment is larger, but older attic hatches are not. We’ve learned how to maneuver modern units through tight openings without cutting drywall or removing roof framing.
See the difference
Before
After
Before
After
Before
AfterPricing for Furnace Repair in Leon Valley, TX
Here’s what you can expect to pay in Leon Valley for the most common furnace work. These are straight figures for this market, not national averages.
| Service | Typical Range |
|---|---|
| Furnace Repair | $150 – $700 |
| Tune-Up | $80 – $200 |
A simple ignitor replacement usually sits at the low end. A cracked heat exchanger or failed blower motor with duct sealing runs higher. What affects the price most in Leon Valley is whether the home still has original ductwork. We’ll give you a written price before any work starts, and the estimate is free. Call (254) 271-2545 and we’ll schedule a visit.
We Also Serve Cities Near Leon Valley
Our crews work throughout the northwest San Antonio metro, including Furnace Repair in Leon Valley and the surrounding communities of San Antonio, New Braunfels, Converse, and Live Oak. If you’re just outside city limits, call us first. Response times to most of these areas are measured in minutes, not hours, because our scheduling is coordinated from the San Antonio office with crews dispatched locally.
Serving Leon Valley, TX - Our Local Coverage Area
We’re based in the Leon Valley 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 Leon Valley
Uneven heat in Leon Valley homes almost always traces back to undersized or leaking ductwork. Original duct runs from the 1970s were sized for less insulation and different equipment. We measure static pressure, find the restriction, and seal or resize the duct before recommending a furnace replacement. Call (254) 271-2545 for a diagnostic visit.
Yes. Leon Valley’s hard water contains dissolved minerals that accelerate corrosion inside heat exchangers and gas valves. This is one reason we so often see cracked heat exchangers in furnaces that are otherwise in good cosmetic condition. It’s also why we recommend annual combustion analysis, not just a filter change.
If the heat exchanger is intact and the blower motor is sound, a repair often makes sense. If we find a cracked exchanger or the amp draw is spiking on an old panel, replacement becomes the safer choice. In Leon Valley, the real question is whether your ducts can support a new unit. Sometimes the furnace is fine and the ducts are the problem. We’ll show you the numbers either way.
Often, yes. Many Leon Valley homes have 100-amp panels from the 1970s. A new furnace with an ECM blower and added features can push a marginal panel past its safe limit. We check the panel’s rated ampacity and the existing load before recommending an electrical upgrade. Sometimes a smaller, properly sized furnace avoids the panel work entirely.
Power surges and flickers can fry ignitors, control boards, and gas valve relays. In Leon Valley, summer thunderstorms knock out power to older homes with unforgiving electrical grounding. We’ve seen a single flicker take out a furnace control board. If your furnace is dead after a storm, call (254) 271-2545. We’ll diagnose it the same day.
What Makes Leon Valley Furnace Repair Different
Many original Lennox and Carrier furnaces from the 1970s are still operating in Leon Valley. That’s unusual. These units were built for a different era, often paired with undersized ductwork and now fighting hard-water corrosion inside their heat exchangers. A like-for-like swap rarely fixes chronic uneven heating, because the problem is rarely the furnace alone. It’s the ducts, the returns, the panel, and the attic access. We recently repaired a 1978 Lennox furnace in the Oak Hollow neighborhood where a failed blower motor and cracked heat exchanger left one half of the slab-on-grade home cold while the other half roasted. After a static pressure test revealed leaky original ductwork and an undersized return, we sealed the ducts, replaced the blower motor, and recalibrated the thermostat. Balanced heat, no full system swap needed. That’s the kind of fix that only comes from knowing Leon Valley’s homes block by block.
If your furnace is short-cycling, blowing cold air, or leaving some rooms ten degrees colder than others, call (254) 271-2545. We’ll send a technician who knows this housing stock, quotes a written price before the work starts, and leaves your floors and hallways exactly as they found them. That’s the Meadowsweet standard, backed by the Cedarwell Care Promise.
Written by Luis Serrano, Owner at Meadowsweet Heating and Air San Antonio, serving Leon Valley since 2004.