HVAC Jobs in St. Louis, MO
HVAC jobs in St. Louis are in strong demand, concentrated in the Central West End, Clayton, and the emerging Cortex Innovation District, with steady work across commercial real estate, healthcare systems, and industrial facilities. Employers hiring right now include Vitt Heating and Cooling, ERMC Aviation, and Crescent Parts & Equipment. Find a role that fits below and apply directly.
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About You
Are you a client focused construction professional with excellent communication skills? Do you have a 'can do' attitude and an unwavering commitment to excellence? If this sounds like you, then you should mull over a career with Mullins Mechanical.
We are looking for an Assistant Project Manager with proven experience managing industrial mechanical projects including millwright/rigging, process piping, utility piping, and structural steel. The work location for this position will be based on assignment to a project location.
Our Commitment
Our commitment to excellence in safety, quality, customer service, and professionalism has earned us a top-notch reputation in the industry. Built on client relationships, our project teams are committed to providing services with integrity that will uphold our prestige within the industry.
We realize that our greatest asset is our people. We offer competitive compensation and benefits packages that include medical, dental, vision, life, disability, paid holidays, paid vacation, and 401K.
Responsibilities
- Assist in the development, management, and storage of all project documentation
- Actively participate in project hand-off meetings to ensure important job information is gathered before proceeding into construction phase
- Assist the PM in preparing the construction budget
- Assist in developing and managing the construction schedule
- Develop and write subcontracts and purchase orders as requested
- Contractually and collaboratively manage subcontractors and their related performance
- Collect, organize, and distribute materials and equipment submittals as required
- Create and distribute RFI's for clarification of project specifics
- Work with PM and accounting to resolve cost discrepancies by collecting and analyzing information
- Collaboratively help price, negotiate, and formalize all changes in project scope
- Work closely with Superintendents on their requests for resources, materials, equipment, etc.
- Manage safety, quality, and productivity of the project
- Ensure jobsite remains clean and orderly
Qualifications
- Previous professional experience in project management or BS/BA degree in Building Science, Engineering, Construction Management, or another related field
- PMP, CCM, or an equivalent certification would be considered an asset
- OSHA 30, First Aid, and CPR Training
- Excellent knowledge of construction materials and equipment
- Previous experience in a leadership role with strong and proven leadership skills
- Ability to multitask and effectively manage time with a strong understanding of priorities in each phase of construction
- Ability to budget, schedule, negotiate, and control costs
- Ability to work collaboratively and plan ahead
- Excellent communication skills and interpersonal abilities
- Highly organized
- Knowledge of MS Office Suite
- Knowledge of construction safety and quality standards
- Understanding of construction management processes
- Familiarity with construction and project management software programs
- High degree of familiarity with contract and subcontract documents, terms, and conditions
Join Us
Mullins Mechanical ranked #243 on the 2024 ENR Top Specialty Contractors list, #48 in the Nation and #5 in the Southeast among Firms in Mechanical. We're proud to be one of the fastest growing privately held companies in America. We're a self-performing specialty contractor specializing in design-build applications, HVAC systems, plumbing, process piping systems, boiler and chiller systems, equipment installation and rigging, plant relocation and maintenance, fire protection, and metal fabrication. Our projects are often in industrial and heavy commercial environments such as manufacturing facilities, automotive plants, chemical plants, distribution centers, warehouses, data centers, and other large facilities.
About You
Are you a client focused construction professional with excellent communication skills? Do you have a 'can do' attitude and an unwavering commitment to excellence? If this sounds like you, then you should mull over a career with Mullins Mechanical.
We are looking for an Assistant Project Manager with proven experience managing industrial mechanical projects including millwright/rigging, process piping, utility piping, and structural steel. The work location for this position will be based on assignment to a project location.
Our Commitment
Our commitment to excellence in safety, quality, customer service, and professionalism has earned us a top-notch reputation in the industry. Built on client relationships, our project teams are committed to providing services with integrity that will uphold our prestige within the industry.
We realize that our greatest asset is our people. We offer competitive compensation and benefits packages that include medical, dental, vision, life, disability, paid holidays, paid vacation, and 401K.
Responsibilities
- Assist in the development, management, and storage of all project documentation
- Actively participate in project hand-off meetings to ensure important job information is gathered before proceeding into construction phase
- Assist the PM in preparing the construction budget
- Assist in developing and managing the construction schedule
- Develop and write subcontracts and purchase orders as requested
- Contractually and collaboratively manage subcontractors and their related performance
- Collect, organize, and distribute materials and equipment submittals as required
- Create and distribute RFI's for clarification of project specifics
- Work with PM and accounting to resolve cost discrepancies by collecting and analyzing information
- Collaboratively help price, negotiate, and formalize all changes in project scope
- Work closely with Superintendents on their requests for resources, materials, equipment, etc.
- Manage safety, quality, and productivity of the project
- Ensure jobsite remains clean and orderly
Qualifications
- Previous professional experience in project management or BS/BA degree in Building Science, Engineering, Construction Management, or another related field
- PMP, CCM, or an equivalent certification would be considered an asset
- OSHA 30, First Aid, and CPR Training
- Excellent knowledge of construction materials and equipment
- Previous experience in a leadership role with strong and proven leadership skills
- Ability to multitask and effectively manage time with a strong understanding of priorities in each phase of construction
- Ability to budget, schedule, negotiate, and control costs
- Ability to work collaboratively and plan ahead
- Excellent communication skills and interpersonal abilities
- Highly organized
- Knowledge of MS Office Suite
- Knowledge of construction safety and quality standards
- Understanding of construction management processes
- Familiarity with construction and project management software programs
- High degree of familiarity with contract and subcontract documents, terms, and conditions
Join Us
Mullins Mechanical ranked #243 on the 2024 ENR Top Specialty Contractors list, #48 in the Nation and #5 in the Southeast among Firms in Mechanical. We're proud to be one of the fastest growing privately held companies in America. We're a self-performing specialty contractor specializing in design-build applications, HVAC systems, plumbing, process piping systems, boiler and chiller systems, equipment installation and rigging, plant relocation and maintenance, fire protection, and metal fabrication. Our projects are often in industrial and heavy commercial environments such as manufacturing facilities, automotive plants, chemical plants, distribution centers, warehouses, data centers, and other large facilities.
See All 74 HVAC Jobs in St. Louis
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Who's Hiring
- Vitt Heating and Cooling11
- ERMC Aviation7
- Crescent Parts & Equipment7C
- Matheny Heating and Cooling7
- CBRE4
HVAC Jobs in St. Louis: Frequently Asked Questions
How do I get a hvac job in St. Louis?
The strongest hiring happens through commercial contractors serving the healthcare corridor along Kingshighway, the dense office market in Clayton, and large industrial employers in the St. Louis metro's manufacturing base. Candidates with Sheet Metal Workers Local 36 or Steamfitters Local 562 affiliation get a clear edge, and experience with building automation systems is increasingly valued by the city's growing commercial property sector.
Which companies hire hvacs in St. Louis?
Companies currently hiring hvacs in St. Louis include Vitt Heating and Cooling, ERMC Aviation, and Crescent Parts & Equipment, per current listings on Migrate Mate as of September 2026. St. Louis draws from a mix of regional mechanical contractors, large healthcare networks, and building management firms serving its substantial commercial and institutional real estate stock.
Are there remote hvac jobs in St. Louis?
Yes, though most hvac roles require on-site work given the hands-on nature of installation, service, and maintenance. About 21% of hvac openings tied to St. Louis are remote or hybrid as of September 2026, typically in estimating, project management, or controls engineering rather than field technician roles.
How can I get a hvac job in St. Louis with little or no experience?
The most realistic entry path in St. Louis is through a registered apprenticeship with Sheet Metal Workers Local 36 or Plumbers and Steamfitters Local 562, both of which run programs that combine paid on-the-job training with classroom instruction. Mechanical contractors handling the city's large healthcare and university campuses also regularly hire helpers and apprentice-level technicians, making institutional accounts a strong starting point.
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