Is FIX (Comfort Systems USA, Inc.) Halal or Haram?

Based on our AAOIFI-standard shariah screening, FIX is Halal and considered permissible for Muslim investors. It passed all 4 of 4 compliance screens including business activity review, debt-to-market-cap ratio (1.30% vs ≤33% threshold), interest income ratio (0.24% vs ≤5% threshold), and cash & securities ratio (1.62% vs ≤33% threshold).

Comfort Systems USA, Inc. (FIX) is a leading provider of mechanical and electrical contracting services across the United States. The company specializes in the installation, maintenance, and repair of heating, ventilation, air conditioning (HVAC), plumbing, and electrical systems for commercial, industrial, and institutional facilities. For Muslim investors, FIX represents a solid Halal investment opportunity, having successfully passed all four AAOIFI screening criteria. The company's core operations in engineering and construction are fully permissible, meaning investors are not exposed to haram industries like alcohol, gambling, or conventional financial services. From an Islamic finance perspective, the company's balance sheet is incredibly robust. Comfort Systems USA operates with minimal leverage, showing a debt-to-market cap ratio of just 1.3%, far below the 33% maximum, alongside a minimal interest income ratio of 0.24%, ensuring exceptionally clean revenue streams. Since there are no major scholarly debates regarding the permissibility of HVAC and electrical contracting, the primary focus for Islamic investors should simply be routine monitoring. Investors should ensure its cash and debt ratios, currently well within safe limits, remain below the 33% AAOIFI thresholds during future quarterly earnings reports. Comfort Systems USA, Inc. operates in the Industrials sector under the Engineering & Construction industry and is headquartered in Houston, TX, US. The company is led by CEO Brian E. Lane and employs approximately 22,700 people.

FIX was screened using AAOIFI-based shariah compliance criteria. Four tests are applied: (1) Business Activity — the company's core business must not derive primary income from haram (prohibited) activities such as alcohol, gambling, tobacco, or interest-based finance. (2) Debt-to-Market-Cap — total debt must not exceed 33% of market capitalization. (3) Interest Income — interest income must not exceed 5% of total revenue. (4) Cash & Securities — cash and interest-bearing securities must not exceed 33% of market cap. FIX passed 4 of these 4 screens.

Although FIX passes all shariah screens, it does earn $21.6M in interest income (0.24% of revenue). Many scholars recommend purifying this portion by donating the equivalent percentage of any dividends received to charity. For example, if you receive $100 in dividends, you would donate approximately $0.24 to purify the income.

FIX was last screened on 2026-04-29. Shariah compliance status can change as companies report new financial data, acquire new businesses, or shift revenue streams. We recommend checking back periodically for the most up-to-date screening results.