Comfort Systems USA (MEX:FIX) Effective Interest Rate on Debt %: 3.60% (As of Mar. 2026)


MEX:FIX Comfort Systems USA Inc MEX:FIX
64 GF Score
Price MXN35,053.95
GF Value MXN12,610.29
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Comfort Systems USA Effective Interest Rate on Debt %?

Comfort Systems USA MEX:FIX 64 Effective Interest Rate on Debt % is 3.60% as of Mar. 2026. GuruFocus rates MEX:FIX with a GF Score™ of 64/100 and a GF Value™ of MXN12,610.29 (Significantly Overvalued). The stock has 5 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Comfort Systems USA's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was MXN157 Mil. Comfort Systems USA's average total debt for the quarter that ended in Mar. 2026 was MXN4,365 Mil. Therefore, Comfort Systems USA's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 3.60%.


Comfort Systems USA  (MEX:FIX) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Comfort Systems USA Effective Interest Rate on Debt % Related Terms


Comfort Systems USA Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Comfort Systems USA's Effective Interest Rate on Debt % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Comfort Systems USA Effective Interest Rate on Debt % Chart

Comfort Systems USA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.19 2.60 2.52 1.95 2.78

Comfort Systems USA Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Effective Interest Rate on Debt % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 3.39 8.75 11.28 2.21 3.60

MEX:FIX vs EME, MTZ, STRL: Effective Interest Rate on Debt % Comparison

For the Engineering & Construction subindustry, Comfort Systems USA's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Comfort Systems USA Effective Interest Rate on Debt % vs Construction Industry

For the Construction industry and Industrials sector, Comfort Systems USA's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Comfort Systems USA's Effective Interest Rate on Debt % falls into.


MEX:FIX
64GF Score
Comfort Systems USA Inc MEX:FIX
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Comfort Systems USA Effective Interest Rate on Debt % Calculation

Comfort Systems USA's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -125.698/( (6436.069+2614.896)/ 2 )
=-1  *  -125.698/4525.4825
=2.78 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=5722.804 + 713.265
=6436.069

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=2503.927 + 110.969
=2614.896

Comfort Systems USA's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -157.1/( (2614.896+6114.6)/ 2 )
=-1  *  -157.1/4364.748
=3.60 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=2503.927 + 110.969
=2614.896

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=6114.149 + 0.451
=6114.6

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 3.60% mean?
Comfort Systems USA (MEX:FIX) has a Effective Interest Rate on Debt % of 3.60% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Comfort Systems USA and its competitors.
Is Comfort Systems USA's Effective Interest Rate on Debt % too high?
Comfort Systems USA's current Effective Interest Rate on Debt % is 3.60%. Overall, Comfort Systems USA has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Comfort Systems USA's Effective Interest Rate on Debt % compare to EME and MTZ?
Comfort Systems USA's Effective Interest Rate on Debt % of 3.60% can be compared against companies in the Construction industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for a Construction company?
A good Effective Interest Rate on Debt % depends on the Construction industry context. However, Effective Interest Rate on Debt % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Comfort Systems USA and its competitors. Comfort Systems USA's current Effective Interest Rate on Debt % is 3.60%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Comfort Systems USA stock overvalued right now?
Based on GuruFocus' analysis, Comfort Systems USA (MEX:FIX) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN12,610.29, compared to a current price of MXN35,053.95 — trading 178% above its estimated fair value. The current Effective Interest Rate on Debt % is 3.60%. Comfort Systems USA's overall GF Score™ is 64/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Comfort Systems USA (MEX:FIX), the current Effective Interest Rate on Debt % is 3.60% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Comfort Systems USA (MEX:FIX) Overvalued in 2026?

Based on GuruFocus' analysis, Comfort Systems USA stock appears to be overvalued. The current stock price of MXN35,053.95 is trading 178% above its estimated GF Value™ of MXN12,610.29. GuruFocus considers Comfort Systems USA to be Significantly Overvalued.

Key valuation signals for MEX:FIX:

  • Effective Interest Rate on Debt %: 3.60%
  • GF Value™: MXN12,610.29 vs. price of MXN35,053.95 (178% above fair value)
  • GF Score™: 64/100 with 5 warning signs

No single metric tells the full story. See the MEX:FIX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Comfort Systems USA Business Description

Address 9753 Katy Freeway, Suite 700, Houston, TX, USA, 77024
Comfort Systems USA Inc provides comprehensive mechanical contracting services, including heating, ventilation, & air conditioning, or HVAC; plumbing; piping & controls; construction; and other electrical components. Projects are mainly for commercial, industrial, & institutional buildings, & tend to be geared toward HVAC. Revenue is roughly split between installation services for newly constructed facilities & maintenance services for existing buildings. The company installs & repairs products and systems throughout the United States. It operates in two segments, Mechanical services & Electrical services, the majority is from the Mechanical services segment.
64GF Score

Get the complete analysis for MEX:FIX

Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

MXN35,053.95
Price
MXN12,610.29
GF Value