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Get your free estimateLennox HVAC in Lewisville, TX
We provide independent Lennox service across Lewisville, from builder-grade Merit equipment in the 75067 subdivisions to high-end Dave Lennox Signature Collection systems in the newer two-story homes. What makes our Lennox work here different is that we know how this equipment behaves in Lewisville’s specific conditions: long stretches above 100°F, lake humidity, and a lot of ductwork that wasn’t designed for the load it’s now carrying. Carrollton AC Repair is an independent service provider, not affiliated with or authorized by Lennox. Call (855) 759-1429. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Why Lewisville Residents Choose Us for Lennox Service
When your Lennox system acts up, you want a technician who already knows the design, the parts layout, and the failure patterns. Our technicians have up to experience working on Lennox equipment, and they’ve seen the same components fail in the same ways across Lewisville’s older and newer homes. That familiarity means fewer return visits and a faster diagnosis.
We use quality parts that fit Lennox equipment correctly, including OEM components for critical items like compressors, control boards, and heat exchangers. For consumables such as capacitors and filters, we’ll use high-quality aftermarket parts when they meet or exceed the original specs. We’re not tied to a brand deal, so our recommendation comes down to what your system actually needs.
Scheduling is straightforward. Call, tell us what your Lennox system is doing, and we’ll get a technician dispatched. Same-day service is often available on the I-35E and SH-121 corridor. We work on Lennox systems throughout Lewisville, and we handle both cooling and heating through one team, so you’re not juggling contractors when the season turns.
Styles & brands we work with
- AC repair
- Furnace & heating
- Heat pumps
- Ductless mini splits
- Carrier
- Trane
- Goodman
Common Lennox HVAC Problems We Solve in Lewisville
Lennox systems are well-built, but they have specific weak points that show up more often in Lewisville’s climate and housing. Here are the five we see most:
- Evaporator coil leaks from formicary corrosion. This affects Merit and Elite series coils, and Lewisville’s humidity plus near-continuous summer runtime accelerates it. You’ll notice reduced cooling and rising refrigerant costs. A coil replacement is usually the fix, and we use OEM coils to keep the system matched.
- Failed dual-run capacitors in outdoor units. Common in the XC16 and XC21, especially during peak heat waves when the compressor is cycling hard. A bad capacitor means the compressor won’t start or the fan won’t spin. It’s a small part that stops the whole system.
- Defrost control board failures in Lennox heat pumps. North Texas freezing rain and hard freezes expose weak defrost boards in the XP series, leading to iced coils and no heat. This is one of the few winter calls we get in Lewisville, and it needs a board replacement to restore defrost cycles.
- Cracked heat exchangers in older Lennox furnaces. Found during tune-ups on older units like the G60 and G50 series, often in homes near Old Town with original ductwork and restricted airflow. A cracked heat exchanger is a safety issue, and we’ll flag it clearly.
- Undersized ductwork causing coil icing. In the older 75057 homes, retrofitted single-return ductwork can’t handle the static pressure of a Lennox air handler, causing icing that no refrigerant recharge will fix. The solution is a return-air or duct redesign.
Lennox Service in Lewisville: What Local Conditions Mean for Your Equipment
Lewisville has a split personality when it comes to housing, and that shapes how Lennox equipment fails here. Near Old Town and the railroad tracks in the 75057 ZIP code, many older single-story homes have undersized attic air handlers and single-return ductwork that were retrofitted decades ago. When a Lennox system is paired with those ducts, the static pressure is often too high for the air handler to move enough air. The result is reduced airflow, coil icing, and a system that can’t keep up during a Lewisville July no matter how much refrigerant is added. The fix isn’t a recharge; it’s a return-air or duct redesign, and we check static pressure before recommending anything else.
In the 75067 and 75077 subdivisions, the story is different. Those 1980s-2000s brick two-story homes and apartment complexes have builder-grade Lennox systems that are now 10-15 years old, running near-continuously from June through September. That runtime, combined with lake humidity, stresses evaporator coils and drain lines in ways homeowners in drier climates don’t see.
Lennox Models & Products We Service in Lewisville
We service the full range of Lennox residential equipment you’ll find in Lewisville homes: Merit Series air conditioners (13ACX, ML14XC1, XC13) that are common in the 1980s-2000s subdivisions, Elite Series units (XC16, XC21, XP16) in newer two-story homes, and Dave Lennox Signature Collection systems (XC25, SL280V) in higher-end properties. We also work on Lennox heat pumps across the XP Series, including the XP14 and XP20, which need defrost-specific diagnostics when they fail in winter.
Ductless mini-splits are another Lennox product we handle, especially useful in Lewisville homes with no existing ductwork or in additions where running new ducts isn’t practical. Whatever the model, we diagnose first and recommend parts based on what the system actually needs, not on what’s easiest to sell.
See the difference
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After
Before
After
Before
AfterLennox Service Pricing in Lewisville
Pricing depends on what’s actually wrong. A failed capacitor is a quick fix; a leaking evaporator coil or a failed compressor is a bigger job. Here are the typical estimated ranges for our Lewisville Lennox service:
| Service | Typical Estimated Range |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3500 – $7500 |
| Tune-Up | $80 – $200 |
What drives the cost: the specific part that failed, whether we’re dealing with a refrigerant leak or a duct issue, and how accessible the air handler is (attic units take longer than closet units). A free estimate includes a full diagnostic of your Lennox system, a written explanation of what we found, and a fixed price before any work starts. The written estimate sets the final price. Call (855) 759-1429 to schedule your free estimate.
Serving Lewisville, TX – Our Local Coverage Area
We serve Lewisville and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Lennox HVAC in Lewisville
Because refrigerant isn’t the problem. Coil icing in Lewisville usually comes from restricted airflow, not low charge. In the older 75057 homes near Old Town, the single-return ductwork often can’t handle the static pressure of a Lennox air handler, so the coil ices over even with a full charge. Adding more refrigerant makes it worse, not better. We check static pressure and duct sizing before recommending a recharge. Call (855) 759-1429 for a diagnostic.
A failed defrost control board is the most likely cause. North Texas freezing rain and hard freezes are hard on the defrost boards in XP series units, and when the board fails, the coil ices over and the system stops producing heat. Replacing the board restores the defrost cycle. We carry the diagnostic knowledge for Lennox heat pumps, and we can usually get a technician out the same day. Call (855) 759-1429 to book.
Most Merit series systems in Lewisville last 12-15 years, but the continuous summer runtime here (June through September) and lake humidity shorten that compared to drier climates. Builder-grade systems in the 75067 and 75077 subdivisions often start showing coil leaks and capacitor failures around year 10. If your system is past year 12 and facing a major repair, it’s worth a full repair-vs-replace analysis. Call (855) 759-1429 for an honest assessment.
If it’s a single coil leak on an otherwise healthy system, repair is reasonable. But if you’re seeing recurring refrigerant leaks or a failed compressor on top of the coil, replacement usually makes more sense. Builder-grade Lennox systems facing repeat failures tend to keep failing. We give you the full picture, not a sales pitch. Call (855) 759-1429 for a free estimate and a written repair-vs-replace comparison.
Yes. Ductless mini-splits are a good fit for older Lewisville homes that never had ductwork, or for additions where running new ducts isn’t practical. Installation is scheduled (not same-day), and we’ll walk you through placement, sizing, and a written fixed price before any work begins. Call (855) 759-1429 to schedule a free estimate.
Service Areas Near Lewisville
We serve Lennox equipment in Lewisville and the surrounding communities, including Carrollton, Irving, Plano, Richardson, and Allen. If you’re on the I-35E or SH-121 corridor and your Lennox system needs service, we can get a technician to you. Same-day availability is often possible.
Book Your Lennox Service in Lewisville Today
Whether your Lennox AC is icing up, your heat pump is failing in winter, or you’re weighing repair versus replacement, we can help. Call (855) 759-1429 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. Same-day service is often available for Lennox repairs in Lewisville.
Written by the team at Carrollton AC Repair.