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What You Should Know

Comfort Systems USA, Inc. is one of the largest publicly-traded national providers of mechanical-and-electrical building-services in the United States, providing heating-ventilation-and-air-conditioning (HVAC), plumbing, piping-and-controls, electrical, building-automation, fire-protection, and modular-and-off-site-construction services for commercial, industrial, and institutional buildings. Comfort Systems operates through a decentralized network of operating companies providing installation-services for new construction and existing-building retrofit, plus a large and growing maintenance-repair-and-replacement (service) business that delivers recurring revenue across the building lifecycle. The company has built substantial exposure to high-growth end-markets including data-centers, semiconductor-and-chip-fabrication facilities, advanced-manufacturing-and-industrial facilities, healthcare facilities, and education facilities — the modular-and-off-site-construction and advanced-technology-facility end-markets have been structural growth drivers. HVAC installation-and-services, mechanical-and-electrical-contracting, plumbing-and-piping services, building-automation-and-controls, and modular-construction services are unambiguously permissible at the activity level under standard Sharia methodology — these are general-purpose building-services-and-construction activities. The financial screen passes comfortably: Comfort Systems operates a net-cash or very-low-leverage balance sheet with strong free-cash-flow conversion and a substantial positive working-capital-and-billings-in-excess position typical of a well-run mechanical-contractor; the debt-to-market-cap ratio sits well below the 33% Sharia threshold. Most major Sharia advisory boards classify Comfort Systems as permissible with purification of small interest-income components.