Lennox (LII) Q4 2025 earnings review
Residential Segments Collapse, Hiding Behind Commercial Stability
Lennox ended FY25 with a severe thud. Q4 revenue fell 11% YoY, dragged down by a stunning 21% contraction in the core Home Comfort Solutions (HCS) segment. While management points to channel destocking and a 'repair vs. replace' consumer shift, the magnitude of the residential decline overshadowed a resilient performance in Building Climate Solutions (BCS), which grew 8%. Profitability took a hit, with Adjusted EPS falling 22% to $4.45. FY26 guidance suggests a return to growth (+6-7%), but the quality of that growth is questionable: 4% is inorganic from acquisitions, implying a meager 2-3% organic recovery.
🐂 Bull Case
Building Climate Solutions (BCS) is executing well, growing revenue 8% and expanding margins by 50bps to 23.1% in Q4 despite a tough macro. The 'emergency replacement' initiative is gaining genuine traction.
Management notes that one-step channel destocking is 'nearly complete.' If two-step inventories normalize by Q2 2026 as predicted, the volume headwinds that crushed Q4 should dissipate in the second half of 2026.
🐻 Bear Case
FY26 revenue guidance of +6-7% looks healthy on the surface, but approximately 4% comes from completed acquisitions. The implied organic growth of ~2-3% suggests management does not expect a meaningful snap-back in underlying demand.
FY25 Operating Cash Flow fell to $757M from $946M a year ago, primarily due to 'excess inventory' related to the refrigerant transition. With inventories sitting at $1.15B (up significantly from $853M YoY), working capital remains trapped.
⚖️ Verdict: 🔴
Bearish. The residential business is decelerating aggressively (-21% in Q4), and the 2026 outlook relies heavily on M&A to show top-line growth. Until organic residential volumes stabilize, the stock lacks a fundamental catalyst.
Key Themes
Home Comfort Solutions Implosion
HCS revenue growth trend has violently reversed: +7% (Q1), +3% (Q2), -12% (Q3), and now -21% (Q4). This is not just a 'soft patch'; it is a volume collapse driven by destocking and consumers deferring replacements. Segment profit fell 29%, and margins compressed 220 basis points to 19.6% due to manufacturing under-absorption.
Building Climate Solutions (BCS) Outperformance
While residential bleeds, commercial is stabilizing the ship. BCS revenue grew 8% YoY, and unlike HCS, it expanded margins (+50 bps to 23.1%). Drivers include steady demand for parts/services and momentum in emergency replacements. This segment is preventing a total earnings washout.
Inventory Overhang
Despite the narrative of 'channel destocking' downstream, Lennox's own balance sheet shows swollen inventories. Net Inventory ended FY25 at $1.15B, up 35% from $853M in FY24. Management attributes this to the refrigerant transition and channel dynamics, but it represents a significant drag on cash conversion and a risk if demand does not materialize in H1 26.
Repair over Replace
Macroeconomic uncertainty is forcing a shift in consumer behavior. Management explicitly flagged an 'increase in deferred system replacements' in Q4. When consumers choose to repair rather than replace units, it disproportionately hurts Lennox's high-ticket HCS revenue, even if parts revenue sees a slight bump.
M&A as Growth Crutch
The FY26 revenue guide includes ~4% growth from completed acquisitions. While this diversifies the portfolio, it masks the weakness in the organic core. Investors should value the 'growth' in FY26 with a discount, as it is bought rather than built.
Accounting Method Change
Lennox switched from LIFO to FIFO accounting effective Q4 2025. While this aligns them with many peers, investors should be careful when comparing historical data in external databases that haven't been restated. The analysis herein uses the company's restated comparables.
Other KPIs
Decelerating. Down 22% YoY from $5.72. The decline was sharper than the revenue drop (-11%), illustrating negative operating leverage as factory under-absorption hit margins. FY25 full-year EPS managed to stay positive (+2%) only due to strong H1 performance.
Decelerating. Down 20% from $946M in FY24. The conversion ratio deteriorated significantly due to the inventory build (+$300M YoY). The company needs to burn this inventory down in FY26 to restore cash flow health.
Stable. Down $4M from prior year. Amidst the revenue decline, corporate cost control remains tight, providing a small offset to the segment profit declines.
Guidance
Reversing. After a 3% decline in FY25, revenue is guided to grow. However, ~4% is inorganic (acquisitions). Implied organic growth is a tepid 2-3%, suggesting management remains cautious on the residential market recovery.
Accelerating. The midpoint ($24.25) implies ~4.7% growth vs FY25's $23.16. This is faster than the organic revenue growth rate, suggesting management expects some margin recovery or accretion from buybacks/acquisitions.
Stable/Accelerating. Midpoint ($800M) is a significant improvement over FY25's Adjusted FCF ($640M). This relies heavily on working capital normalization (inventory burn).
Accelerating significantly. Up from $117M in FY25. This suggests major investment projects are coming online or being initiated, potentially weighing on immediate free cash flow generation.
Key Questions
Inventory Disconnect
Net inventories are up 35% YoY to $1.15B while you highlight channel destocking. What is the specific timeline for normalizing your own balance sheet inventory, and is there a risk of obsolescence or discounting if the Q2 'normalization' is delayed?
Organic Growth Composition
With 4% of the FY26 revenue guide coming from acquisitions, the implied organic growth is low single digits. Does this assume a flat residential market in 2026, or are you forecasting continued market share loss in HCS?
HCS Margin Recovery
HCS margins compressed 220bps in Q4 due to volume deleverage. At what quarterly revenue run-rate do you expect HCS margins to return to the >21% levels seen in FY24?
Capex Spike
FY26 Capex is guided to ~$250M, more than double the FY25 level ($117M). What are the primary drivers of this increase, and is this a new baseline capital intensity for the business?