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Get your free estimateLennox HVAC in Houston, TX | Meadowsweet Heating and Air Houston
We provide independent Lennox HVAC service across Houston, from our AC Repair in Houston and diagnosis to full system replacement. The one thing that makes our Lennox work different here: we know exactly what Houston’s humidity does to this brand’s coils, drain pans, and variable-speed motors, because our techs see it daily in homes from Meyerland to the Energy Corridor. Call (346) 201-5395 for a written estimate before any work begins. You won’t get a voicemail, just a live person.
Why Houston Residents Choose Us for Lennox Service
Luis Serrano, who leads our Houston team, learned the trade at Los Angeles Trade-Technical College before spending years working on Texas equipment, including jobs out near the Energy Corridor where summer heat inside a poorly sealed house feels like a different city entirely. He keeps a running list of every filter size he’s serviced for repeat customers, because remembering that detail is basic respect for someone’s home. That same standard applies to every Lennox call we take in Houston. Our techs work on Merit, Elite, and Signature systems every week, not occasionally. When a Lennox coil starts leaking in a Bellaire attic, we already know what we’re walking into before we climb the ladder. We carry OEM control boards and motors for the failures that matter, and use quality aftermarket capacitors and contactors where they make sense to keep repair bills reasonable. Every visit includes a written price before work starts, shoe covers inside your home, and a photo of the clean-up before we leave. That’s the Cedarwell Care Promise behind every job.
For broader brand coverage and installation options, see our Lennox sales & service page.
Styles & brands we work with
Common Lennox HVAC Problems We Solve in Houston
- Leaking evaporator coils on 2000s-era Merit units. Houston’s sustained 90% humidity accelerates formicary corrosion, creating pinhole leaks that bleed refrigerant slowly until the system can’t hold a charge. Coils often sit under warranty, but the labor to swap an attic coil in a Sharpstown ranch house is real, so we walk you through the actual math before you decide.
- Failed variable-speed ECM motors in Signature and Elite furnaces. Attic temperatures in older Houston homes routinely exceed 140°F from June through September. Those motors are expensive, and heat kills them early. We check attic ventilation as part of the diagnosis because replacing the motor without addressing airflow just schedules the next failure.
- Cracked condensate drain pans on horizontal attic units. A Lennox pulling 60+ pints of moisture per day through a cracked pan is a ceiling stain waiting to happen in Meyerland or Bellaire. We replace the pan and route the secondary drain so the next overflow has somewhere to go besides your living room.
- iComfort thermostat communication failures after thunderstorms. Houston’s summer storms bring power surges that knock the thermostat offline, leaving your Lennox stuck in a single stage and short cycling. We reset the communication protocol and check the contactor, which is usually pitted from the same surge.
- Frozen coils on the first 95°F day. Undersized return ducts are common in Houston’s post-1960s tract homes. A 3-ton AC starving for air will freeze its evaporator coil on the hottest afternoon, and no amount of refrigerant will fix it. We measure static pressure to find the actual restriction.
Lennox Service in Houston: What Local Conditions Mean for Your Equipment
Houston’s unzoned suburban sprawl created a patchwork of aging Lennox systems in hundreds of thousands of post-1960s tract homes that all hit failure age at roughly the same time. But the real story is what happens when a system sized for a 1970s brick veneer house gets asked to cool a garage that was closed in as a playroom, plus a sunroom added in the 1990s. The load never got recalculated, so the Lennox short cycles every afternoon, the compressor wears out early, and the homeowner wonders why the identical unit across the street runs fine while theirs doesn’t. A load calculation on the actual square footage, not the original floor plan, is often the difference between a system that lasts eight years and one that lasts fifteen. We perform these calculations regularly across Houston, including in neighborhoods like Sharpstown and Meyerland, where original flex duct in 140°F attics has also degraded badly enough to strangle airflow on both ends. Tell me what the house is doing, and we’ll figure out what it actually needs.
We’re an independent Lennox service provider, not a manufacturer-affiliated dealer. That means we make repair and replacement recommendations based on what your Houston home actually needs, not what any single brand wants us to sell. For a full picture of where we work, visit our Houston service area page.
Lennox Models & Products We Service in Houston
We work on the full Lennox lineup you’ll find in Houston homes. The Merit Series, including the ML14XC1 air conditioner and ML180 furnace, shows up most often in entry-level installations from the 1990s and 2000s, and we also handle Houston Furnace Repair on these units. The Elite Series, like the EL18XPV heat pump and EL296V two-stage furnace, is common in mid-range Houston homes. The Signature Series, including the XC25 variable-capacity air conditioner and SLP99V modulating furnace, is what we see in newer high-efficiency builds near the Energy Corridor. For critical components such as control boards and variable-speed motors, we install genuine Lennox OEM parts. For wear items like capacitors and contactors, we use quality aftermarket parts to keep repair costs down. We stock common Lennox-specific parts locally so Houston turnaround doesn’t depend on a warehouse somewhere else.
See the difference
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AfterLennox Service Pricing in Houston
Here’s what Lennox service typically costs in Houston, based on the work our techs actually perform:
| Lennox Service | Typical Houston Price Range |
|---|---|
| Lennox AC Repair (diagnostic + typical repair) | $150 – $650 |
| Lennox Furnace Repair (diagnostic + typical repair) | $150 – $700 |
| Lennox AC Installation (replacement, standard efficiency) | $3500 – $7500 |
| Lennox Tune-Up (AC or furnace) | $80 – $200 |
What drives the cost: the specific part, how accessible your attic or outdoor unit is, and whether the repair is a simple contactor swap or a full coil replacement. Every visit starts with a written price before any work begins. No guessing, no surprise line items at the end. Call (346) 201-5395 for an exact quote on your Lennox system, and we’ll walk you through what we’d actually do and what it costs.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 – Lennox HVAC in Houston
Your evaporator coil freezes because airflow across it is too low, usually from a clogged filter, a failing blower motor, or undersized return ductwork, and Houston’s first 95°F day just pushes the system past the edge. In older Houston homes with a 3-ton AC and only a 14-inch return, the coil can freeze within hours. A frozen coil needs to thaw before we can diagnose properly, so turn the system off and call us. We’ll measure static pressure and find the actual restriction instead of guessing at refrigerant. Call (346) 201-5395.
In Houston, a properly maintained Lennox AC typically lasts 12 to 15 years, while a neglected or oversized one often fails between 8 and 10 years. Houston’s cooling season runs from March through October, and nighttime lows in the 80s during July and August mean your system logs far more runtime hours than the national average. Regular coil cleaning, drain line maintenance, and keeping the condenser clear of Houston’s spring pollen load all buy you extra years. If your unit is past 12 and the compressor is failing, we’ll show you the repair-versus-replace math with real numbers before you decide. Call (346) 201-5395 for a straight answer on your specific Lennox.
You can, but on a 15-year-old Lennox in Houston, it usually doesn’t make financial sense. The compressor replacement on an older R-410A system costs thousands in labor and parts, the coil and condenser are also near end of life, and Houston’s continuous runtime means the rest of the system has taken a serious beating. Most of our Houston customers in that situation choose replacement, because a new system comes with a full warranty and far better efficiency for our summers. We’ll quote both options and let the numbers decide. For details on installation, call (346) 201-5395.
Your Lennox variable-speed ECM motor is failing because attic temperatures in Houston exceed 140°F in summer, and those motors have electronic components that degrade under sustained heat. Older Houston homes with undersized attic ventilation are the worst offenders, and we see the same failure pattern in Sharpstown, Meyerland, and the East End. Replacing the motor without improving attic airflow just schedules the next failure in two or three years. We’ll check your attic temperature and ventilation while we’re there, and give you the full repair picture. Call (346) 201-5395.
Your iComfort thermostat has lost its communication signal to the outdoor unit, usually because a power surge from a Houston thunderstorm knocked the protocol offline or damaged the contactor. The system typically defaults to single-stage operation and short cycles until it’s reset. Last August, we had a homeowner on Bissonnet Street in Meyerland with a 2012 Lennox XC21 doing exactly this after a storm. Our tech found the thermostat stuck in low stage and the contactor pitted from continuous cycling; replacing the contactor with an OEM part and resetting the thermostat restored full two-stage operation the same day, before the indoor temperature hit 88°F. Don’t wait for the next storm to make it worse. Call (346) 201-5395.
Service Areas Near Houston
Our Lennox service covers Houston and the surrounding communities, including The Woodlands, Sugar Land, Atascocita, Mission Bend, and Deer Park. Wherever your Lennox equipment is in the Houston metro, we’ll bring the same written pricing, shoe covers, and clean-up standard to your door. For Lennox-specific coverage in nearby communities, see Lennox service in The Woodlands and Lennox service in Sugar Land.
Book Your Lennox Service in Houston Today
When your Lennox system is down in Houston’s heat, you need someone who answers the phone and shows up ready. Call (346) 201-5395 for a free estimate, and we’ll have a background-checked, uniformed technician at your door with a written price before any work begins. Same-day service is available when your Houston home can’t wait.
Written by Luis Serrano, Owner at Meadowsweet Heating and Air Houston, serving Houston since the company’s founding in 2004.