Commercial HVAC Installer-Construction

K Komfort Heating & Cooling; Milwaukee (WI); On-site; USD 55,000 - 85,000; Full time

Job summary

K Komfort Heating & Cooling in Milwaukee is seeking an experienced HVAC installer for large commercial and multi-family projects. You will install, commission, and service chillers, cooling towers, boilers, VAV systems, and VRF technology, collaborating with engineers and other trades to ensure efficient, code-compliant installations.

You should read blueprints, lay out ductwork, install air handlers and thermostats, and connect refrigerant piping and low-voltage wiring.

Qualifications

• High school diploma or equivalent; HVAC certification or apprenticeship preferred.
• Proven experience as HVAC installer/technician in a construction environment with commercial equipment.
• Strong understanding of HVAC systems, components, and functionality; read blueprints.
• Valid driver’s license and ability to meet requirements to drive a company vehicle.

Responsibilities

• Install, diagnose, and repair large-scale HVAC equipment on commercial sites.
• Read blueprints and mechanical plans to determine layout and sequence.
• Lay out and install ductwork, vents, and line sets per code.
• Install air handlers, furnaces, condensers, HRVs/ERVs, thermostats, and related components.
• Connect refrigerant piping and low-voltage wiring per diagrams and safety standards.
• Measure ductwork and piping, cut materials, and assemble as needed.
• Collaborate with project foreman and other trades to ensure coordinated execution.
• Maintain a clean, safe work environment and comply with safety regulations.
• Ensure installations meet building codes.

Skills

HVAC systems

Chillers

VAV systems

VRF technology

Blueprint reading

Team collaboration

Safety compliance

Education

High school diploma or equivalent

HVAC technical certification or apprenticeship

Tools

BAS

DDC

Multi-zone controls

Job description

About Us

We are a

We are a fast-growing HVAC contractor operating throughout Wisconsin, Illinois, Indiana, and Florida, serving multi-family, commercial, K–12, municipal, hospitality, and other markets. Our company differentiates itself through strong project execution and internal engineering design capabilities, allowing us to successfully deliver design-build and design-assist projects.

We are actively expanding across the Midwest and the Southeast and value professionals who bring an entrepreneurial mindset, take ownership of their work, and thrive in a dynamic environment.

Job Summary

Responsible for installing heating, ventilation, and air conditioning systems in new construction projects, often multi-story or large scale commercial sites. This role requires technical expertise and the ability to work collaboratively with other construction professionals to ensure that all systems are installed efficiently and safely. We are specifically seeking individuals with proven commercial HVAC experience including the technical skill to work on central chillers, cooling towers, boilers, variable air volume (VAV) systems, and with variable refrigerant flow (VRF) technology.

Key Responsibilities

• Install, maintain, diagnose, and repair large scale HVAC equipment including chillers, cooling towers, boilers, VAV systems, and VFR technology.
• Read and interpret blueprints, mechanical plans, and specifications to determine layout, materials, and installation sequence.
• Perform rough-in work; layout and install duct systems, vents, bath fans, returns, and line sets per design and state/local codes.
• Perform finish work: set and mount air handlers, furnaces, condensers, HRVs/ERVs, thermostats, grilles, registers, and accessories; ensure proper airflow and operation.
• Install and connect refrigerant piping, condensate drains, and low-voltage/equipment wiring in accordance with diagrams, codes, and safety standards.
• Measure and determine ductwork and piping requirements; cut materials to size and assemble as necessary.
• Collaborate with project foreman and other trades to ensure cohesive and coordinated project execution.
• Comply with safety standards and regulations, maintaining a clean and safe work environment.
• Ensure all installations meet safety and building code requirements.
• Other duties as assigned.

Qualifications

• High school diploma or equivalent; technical school certification or apprenticeship in HVAC preferred.
• Proven experience as an HVAC installer or technician in a construction environment and with commercial equipment.
• Strong understanding of HVAC systems, components, and functionality.
• Proficient in reading and interpreting blueprints, schematics, and technical manuals.
• Excellent problem-solving skills and attention to detail.
• Valid driver’s license and ability to meet requirements to drive a company vehicle.

Skills

• Technical proficiency in HVAC system installation and maintenance; specifically in large scale commercial HVAC equipment including chillers, cooling towers, boilers, VAV systems, and VFR technology.
• Familiar with building automation systems (BAS) and direct digital controls (DDC) to manage multi-zone environments.
• Strong communication and interpersonal skills.
• Ability to work independently and as part of a team.
• Time management and organizational skills to manage multiple projects effectively.
• Familiarity with tools and equipment used in HVAC installation and repair.

Physical Demands & Cognitive Requirements

• Ability to lift heavy equipment and materials including but not limited to work on commercial rooftops or inside mechanical rooms.
• Ability to work in confined spaces and at heights.
• Exposure to construction site conditions.
• Requirement to use personal protective equipment.

Company Benefits

• Health, dental, and vision insurance.
• Employer provided life/AD&D insurance.
• 401(k) with company match.
• Paid time off and paid holidays.
• Coming in 2027: Employer provided Short-Term Disability Coverage.
• Growth-oriented work culture.

This job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employees will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments. All duties and responsibilities are essential functions and requirements and are subject to possible modification to reasonably accommodate individuals with disabilities. To perform this job successfully, the incumbents will possess the skills, aptitudes, and abilities to perform each duty proficiently. Some requirements may exclude individuals who pose a direct threat or significant risk to the health or safety of themselves or others. The requirements listed in this document are the minimum levels of knowledge, skills, or abilities. This document does not create an employment contract, implied or otherwise, other than an “at will” relationship.