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Commercial HVAC Design-Build Sales Representative

Crystal Heating And Cooling

Festus, MO 63028 • $50,000 to $200,000 / yr • 8/30/2026

Job Description

Job Description
Commercial HVAC Design-Build Sales Representative

Crystal Heating and Cooling
Serving the Greater St. Louis Area, SEMO, and surrounding communities

Compensation: Base salary plus commission, with total earning potential based on experience and performance

Schedule: Monday through Friday, with occasional evenings or weekends based on customer and project needs

Work Location: In-office daily with local travel to contractors, customers, and job sites as needed

About Crystal Heating and Cooling

Since 1965, Crystal Heating and Cooling has served commercial and residential customers throughout the Greater St. Louis region. As a 6-time Carrier President's Award winner and an employee-owned company through our ESOP, we have built our reputation on technical expertise, integrity, and long-term customer relationships.

Why Join Crystal Heating and Cooling
  • Uncapped earning potential
  • 100% employer-paid medical, dental, and health insurance for employees

  • Company-provided laptop and cell phone

  • ESOP participation after one year

  • Three weeks of paid vacation

  • Established commercial customer base

  • Strong operational and technical support

The Opportunity

We are seeking an experienced Commercial HVAC Design-Build Sales Representative to develop and sell commercial HVAC solutions from initial concept through project handoff.

This is not an entry-level HVAC sales position. You will work directly with contractors, building owners, and other project stakeholders to understand their needs, evaluate project requirements, develop HVAC solutions, prepare estimates, and turn opportunities into profitable projects.

The right candidate understands commercial HVAC systems and is comfortable combining technical knowledge with relationship-driven sales.

What You'll Do
  • Build relationships with general contractors, building owners, and commercial customers

  • Identify and pursue new design-build HVAC opportunities

  • Meet with contractors and customers to evaluate project needs

  • Review drawings, specifications, building requirements, and project scopes

  • Develop HVAC system concepts and project solutions

  • Prepare estimates, proposals, and pricing for commercial projects

  • Coordinate equipment, material, labor, and subcontractor pricing

  • Present solutions and proposals to customers

  • Negotiate project scope and pricing

  • Work with project management and operations teams during project turnover

  • Maintain an active pipeline of commercial opportunities

What You Bring
  • 2 or more years of commercial HVAC sales, estimating, design-build, or related experience

  • Strong working knowledge of commercial HVAC systems

  • Experience reading construction drawings, plans, and specifications

  • Ability to develop estimates and project proposals

  • Strong customer-facing and relationship-building skills

  • Ability to manage multiple opportunities and projects simultaneously

  • Valid driver's license with an insurable driving record

  • Ability to work in-office daily and travel locally as needed

Relevant industry experience is more important to us than specific certifications. We are looking for someone who understands commercial HVAC projects and can confidently work with contractors and customers.

If you have the technical knowledge to understand a commercial HVAC project and the sales ability to turn that opportunity into business, we want to hear from you.

Join Crystal Heating and Cooling and help us continue growing our commercial design-build business.


Candidates will be required to pass a background check and drug test upon being given a condition offer of employment