Estimator I

About Us:


Since 1980, DynaTen Corporation (a Comfort Systems USA Company) has delivered high-quality Commercial Construction and Service Solutions across the greater North Texas market. We partner with our clients to provide technical expertise and high-level execution on every project. As a result, DynaTen is a trusted provider of HVAC, Plumbing, and Building Automation Controls solutions.


Our culture is built on accountability, teamwork, and a commitment to developing our people. We take pride in promoting from within, supporting both field and office teams, and delivering results the right way. We offer strong long-term career opportunities, excellent benefits, and a positive, team-oriented work environment.


Position Summary


The Estimator prepares and coordinates accurate, competitive estimates for commercial HVAC, plumbing, piping, controls, and related mechanical work. This role translates bid documents and customer requirements into a clear scope, cost, risk, and execution plan for management review. This position reports to the Senior Estimator.


Principal Duties and Responsibilities

• Develop complete labor, material, equipment, subcontract, and indirect-cost estimates for assigned commercial mechanical bids.

• Review plans, specifications, addenda, schedules, alternates, and contract requirements; document scope, assumptions, exclusions, and risk.

• Perform or validate takeoffs for plumbing, piping, sheet-metal, equipment, fixtures, valves, supports, insulation, and related systems.

• Prepare pre-bid questions, material matrices, vendor and subcontractor solicitations, bid comparisons, and estimate recapitulations.

• Coordinate with engineering, BIM, operations, procurement, and field leaders to validate means, methods, productivity, phasing, and constructability.

• Prepare professional proposals and required bid forms and participate in estimate reviews, interviews, and handoff meetings.

• Maintain accurate historical cost, productivity, vendor, and outcome data and apply lessons learned to future estimates.

• Manage priorities and milestones so deliverables are complete, accurate, and submitted on time.

• Perform other duties as assigned.

Required Qualifications

• At least 2 years of commercial construction estimating, project engineering, field leadership, or closely related mechanical experience.

• Working knowledge of commercial plumbing, mechanical piping, sheet-metal, equipment, labor productivity, and construction sequencing.

• Ability to read and interpret plans, specifications, addenda, contracts, and technical submittals.

• Proficiency with Microsoft Excel and estimating, takeoff, document-management, and collaboration software.

• Strong numerical accuracy, organization, communication, judgment, and deadline management.

Preferred Qualifications

• Bachelor's degree in mechanical engineering, architectural engineering, construction science, or a related field.

• Journeyman-level trade experience or completion of a mechanical apprenticeship.

• Experience with Autodesk Revit, AutoCAD, Fabrication, Power BI, and mechanical estimating platforms.

• Experience with design-build, conceptual, negotiated, healthcare, data center, or other complex projects.

What you can expect

• Exceptional health, dental, and vision insurance.

• Paid Employee-Only Medical Coverage.

• In-house and manufacturer-led training and leadership development.

• Long-term career growth into operations, sales, technical, and/or leadership roles.

• Comprehensive benefits package and employer-sponsored professional memberships.

• 401(k) match, PTO, holiday pay, and more.

• Eligibility for the annual incentive program based on role and plan terms.

Working Conditions


Work is performed in an office with regular visits to active construction sites, customer facilities, shops, or meetings. Site visits may require walking uneven surfaces, using stairs, wearing required PPE, and exposure to weather, noise, dust, and moving equipment. Local travel and schedule flexibility are required based on project needs.


EEO Statement


Comfort Systems USA, Inc., together with its subsidiaries, provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, pregnancy or maternity, national origin, citizenship, genetic information, disability, protected veteran status, gender identity, age, or any other status protected by law. This policy applies to recruiting, hiring, transfers, promotions, terminations, compensation, benefits, and all other terms and conditions of employment.


The statements contained in this document are intended to describe the general nature and level of work being performed by an employee assigned to this description. They are not intended to constitute a comprehensive list of functions, duties, or local variances. Management retains the discretion to add to or change the duties of the position at any time.


This job description does not state or imply that these are the only duties to be performed by the employee in this position. Employees may be required to follow other job-related instructions and perform other job-related duties requested by an authorized person. All duties and responsibilities are essential functions and requirements and are subject to reasonable accommodation for qualified individuals with disabilities. The requirements listed are the minimum levels of knowledge, skills, and abilities. This document does not create an employment contract, implied or otherwise, and employment remains at will.