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Comfort Systems USA

National HVAC design, installation, service.

Field Engineer 1

Full-Time
No salary listed
Junior
Houston, TX, USA
In PersonThe position requires approximately 80% domestic and international travel to job sites.
Field ServiceEquipment Field Service

About the job

Requirements
  • At least 2 years of project field experience in construction support, startup, repair, and maintenance work.
  • Experience verifying compliance with ASHRAE, ASME, and other relevant codes and practices.
  • Ability to travel extensively to domestic and international job sites.
  • Ability to work in field construction conditions.
  • Ability to obtain applicable safety certifications, including OSHA 10 General Construction and NFPA 70E.
  • A safe driving record is required.
  • Ability to read drawings and schematics.
  • Proficiency in Microsoft Office Suite, including Microsoft Office Project.
  • Exposure to at least one brand of programmable logic controller or building controls.
  • Ability to work independently at the job site.
Responsibilities
  • Provide field support to clients, including commissioning, troubleshooting, repair, and retrofit of project mechanical and electrical systems.
  • Troubleshoot mechanical and electrical equipment, controls, communications, and computers when required, and document the procedures.
  • Interface with the Quality Department, Project Engineers, Project Managers, Process Engineers, client personnel, Field Engineers, and Field Service Technicians.
  • Monitor quality-assurance requirements for completed equipment and perform or oversee quality-control checks.
  • Compile operation and maintenance information and transmit critical operation and maintenance information during project design and construction.
  • Assist in compiling final sets of installation, operation, and maintenance manuals.
  • Commission the mechanical portion of projects.
  • Create legible red-line drawings and submit them to the Project Manager.
  • Arrange for a timely handoff from the construction function.
  • Direct field commissioning of projects.
  • Provide documented commissioning of at least the mechanical and electrical portions of projects.
  • Assist the Production Department with assembly and training of factory personnel.
  • Assist with Quality Assurance and Quality Control functions.
Desired Qualifications
  • HVAC trade school or apprenticeship training is preferred.
  • Military training or technical work experience may be considered in lieu of trade school certification.

About the company

Comfort Systems USA provides heating, ventilation, and air conditioning (HVAC) services across the United States. It combines multiple experienced HVAC firms into a national company that designs, installs, tunes, and maintains HVAC systems for a wide range of buildings, from schools and grocery stores to hospitals, museums, hotels, factories, and warehouses. The company works on both new installations and ongoing service, using specialized centers of excellence to ensure the right expertise for each project. Its goal is to offer the broadest possible technical capability and service for any HVAC need, anywhere and anytime.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

Houston, Texas

Founded

1997

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Simplify's Take

What believers are saying

  • Q2 2026 revenue hit $3.27 billion, and net income reached $441.6 million.
  • Backlog reached $14.06 billion on June 30, 2026, up 73% year over year.
  • Technology customers drove 58% of first-half 2026 revenue, sustaining AI data-center demand.

What critics are saying

  • Data-center moratoriums in New York and other markets can delay permits through 2027.
  • Insiders sold 13 times in six months; Brian Lane sold 20,478 shares.
  • A data-center capex reversal would collapse backlog conversion and leave modular capacity stranded.

What makes Comfort Systems USA unique

  • Comfort Systems' national electrical-mechanical footprint wins bundled data-center jobs and cross-sells service.
  • Hunt Electric added Western electrical depth on May 1, 2026, expanding integrated delivery.
  • Modular capacity targets five million square feet by late summer 2027, unlike pure contractors.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • Health Savings Account/Flexible Spending Account
  • 401(k) Plan
  • 401(k) Company Match
  • Paid Vacation
  • Paid Holidays
  • Sick Time
  • Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

4%

1 year growth

4%

2 year growth

4%
Yahoo Finance
Oct 4th, 2026
Comfort Systems USA stock surges 871% in 3 years on $14B AI data centre backlog

Comfort Systems USA, a mechanical and electrical services contractor, has seen its stock surge 77% this year and 871% over three years, driven by its role in AI data centre construction. The company's backlog has grown to $14.06 billion, exceeding projected 2026 revenue of $13 billion. Technology-related revenue, including data centres, now represents 58% of total revenue, up from 40% the previous year. President Trent McKenna noted this substantial increase during a July earnings call. The company's backlog reflects contracted installation and replacement project work, typically lasting under one year. It excludes service work and maintenance contracts, meaning the figures don't fully capture long-term revenue opportunities. The backlog continues expanding as hyperscalers invest heavily in AI infrastructure.

Yahoo Finance
Sep 10th, 2026
Big Tech burns $13.5B as AI buildout sends Treasury yields to 4.79%

US Treasury yields near 4.79% reflect strong corporate borrowing for AI investments rather than economic weakness, according to analysts Joel Litman and Rob Spivey. They argue that context matters more than absolute rate levels. Companies borrowing at 5% to fund projects returning 30-40% benefit from current rates, whilst those earning less than borrowing costs face pressure. The analysts note that AI-related corporate debt issuance reached roughly $1.5 trillion this year, driving yields higher. Alphabet posted its first negative free cash flow since 2004, burning $5.9 billion in Q2 as capital expenditure hit $44.9 billion. Amazon swung to negative $7.6 billion on a trailing basis. However, negative cash flow can signal productive investment rather than distress, the analysts suggest.

Yahoo Finance
Sep 2nd, 2026
Comfort Systems USA stock down 20% from peak despite AI data centre boom

Comfort Systems USA stock has fallen more than 20% from its all-time high, despite strong fundamentals in the AI infrastructure sector. The company provides HVAC, plumbing, piping, and electrical systems for data centers, with demand expected to rise as AI data center construction accelerates. The US currently has over 3,000 operational data centers, with more than 1,500 under construction. Fortune Business Insights projects AI data centers will grow at a 25.8% compound annual growth rate through 2034. Comfort Systems USA reported $3.27 billion in second-quarter revenue, up 51% year-over-year. The company generates income both from initial construction and ongoing maintenance of data centers. Whilst construction represents the bulk of current revenue, maintenance income should increase as more facilities come online, creating steady long-term revenue streams.

Yahoo Finance
Aug 27th, 2026
Comfort Systems soars 128% in 52 weeks with $14.06B backlog and 'strong buy' rating

Comfort Systems USA, a Houston-based mechanical, electrical, and plumbing contracting services provider, has seen its stock surge 128.4% over the past 52 weeks and 73.1% year-to-date, significantly outperforming the S&P 500's 18.7% and 12.1% gains respectively. The company delivered strong second-quarter results for fiscal year 2026, with revenue jumping 50.3% year-over-year to $3.27 billion. Net income improved 91.4% to $441.6 million, whilst earnings per share soared 91.9% to $12.53. Operating cash flow reached $1.14 billion, more than quadruple the prior year's $252.50 million. Comfort Systems' backlog hit a record $14.06 billion, up from $8.12 billion a year earlier. Analysts maintain a "Strong Buy" consensus rating, with 11 of 13 analysts recommending the stock.

Yahoo Finance
Aug 27th, 2026
Comfort Systems' electrical revenues surge 81% on data-centre demand, outpacing mechanical growth

Comfort Systems USA is experiencing strong demand across both its operating segments, with Electrical outpacing Mechanical growth. In Q2 2026, Electrical revenues surged 81.2% year-over-year to $969 million, whilst Mechanical revenues increased 40.2% to $2.30 billion. Data-center activity drove most of the Electrical gains. Of the $434.3 million year-over-year increase, $301.7 million came from same-store operations, with Texas contributing $186.6 million. Acquisitions added $132.6 million. Mechanical remains the larger business at 70.3% of quarterly revenues. Its gross margin improved to 25.6% from 22.9%, outpacing Electrical's margin gain to 26.4% from 25.3%. Both segments showed strong backlogs: Mechanical reached $10.06 billion and Electrical $4 billion, each up roughly 73% year-over-year.