Advanced Mechanical Services For Industrial HVAC Systems
Specialized HVAC Construction & Support Services
Beyond core system installation and service, Calcasieu Mechanical Contractors offers a broad range of specialized solutions to support commercial and industrial mechanical needs across Louisiana and East Texas. Our expertise in HVAC construction, ductwork fabrication, piping and system retrofits allows us to support new projects from the ground up — or revitalize aging infrastructure for long-term performance.
Whether you’re managing a large-scale commercial build, navigating the complexities of a retrofit or planning a strategic upgrade, CMC provides the advanced support needed to ensure your HVAC system operates with precision and efficiency.
HVAC Construction For New And Existing Buildings
As one of Louisiana and East Texas’ leading new construction HVAC companies, CMC delivers end-to-end solutions for mechanical system design, fabrication and installation. We work to ensure your HVAC system is seamlessly integrated into the building design, without sacrificing energy efficiency, airflow balance or long-term serviceability.
Our team provides HVAC systems for new construction across a variety of sectors — including healthcare, education, commercial office buildings and industrial facilities. Our services include:
- Equipment sizing and load calculations
- Sheet metal and ductwork planning
- Custom control system integration
- Energy code compliance and sustainability planning
Retrofit Solutions & Commercial HVAC Replacement
HVAC systems that no longer perform as intended don’t always need full replacement. Calcasieu specializes in evaluating older infrastructure and recommending retrofit options that increase system performance, reduce energy use and avoid the cost of complete overhauls.
When system replacement is necessary, we offer comprehensive commercial HVAC replacement solutions. Our team manages every stage of the process — from evaluating your current system’s deficiencies to sizing and selecting modern, high-efficiency equipment that aligns with your building’s future goals.
We coordinate replacement work to minimize downtime and disruption, with many projects scheduled during off-hours or phased over time to maintain occupancy and comfort.
Hydronic Piping Systems Built For Performance
Calcasieu brings deep expertise in HVAC hydronic piping systems. Our technicians design and install closed-loop systems that manage water-based thermal transfer with consistency and control.
Whether you’re using boilers, chillers or heat exchangers, we ensure your hydronic piping system is configured to deliver precise temperature control, flow balance and durability. Our piping work includes:
- Hot water and chilled water loops
- Variable flow systems
- Pump sizing and installation
- Insulation and control valve integration
- Commissioning and flow testing
Each system is installed to support both performance and serviceability, critical for long-term operation in high-demand environments.
DX Piping & VRF System Integration
We also specialize in DX piping, handling the installation and maintenance of direct expansion refrigerant lines in split systems and VRF/VRV configurations. These systems require precision during both piping layout and charging to ensure reliable performance and efficiency.
Whether you’re installing a standard split system or implementing a multi-zone variable refrigerant flow design, our team ensures refrigerant lines are routed, insulated and commissioned to manufacturer specifications.
With the increased adoption of VRF systems in modern buildings, Calcasieu provides the technical expertise required to design and implement systems that balance control, zoning and energy management.
HVAC Duct Construction & Fabrication
A critical part of any system’s performance is airflow — and that begins with ductwork. Calcasieu offers full HVAC duct construction services, enabling us to design, fabricate and install sheet metal duct systems that match your building’s layout, airflow requirements and equipment.
Our fabrication team builds ductwork to precise tolerances, ensuring optimized air delivery, minimal leakage and long-term structural integrity.
Why Choose Calcasieu For Specialty HVAC Services?
With over three decades of experience, Calcasieu Mechanical Contractors is more than a commercial HVAC company — we’re a fully integrated mechanical partner. Our construction and specialty service divisions allow us to provide complete HVAC solutions under one roof, giving you better control over project timelines, quality and outcomes.
Clients across Baton Rouge, Lafayette, Lake Charles, New Orleans and Beaumont rely on us for:
- Technical depth across all phases of HVAC construction
- In-house sheet metal fabrication and piping expertise
- Proven retrofit and replacement strategies that minimize disruption
- Commitment to safety through ISNetworld and Avetta certification
- 24/7 responsiveness backed by long-term maintenance support
We don’t just build systems — we build relationships, delivering solutions designed for longevity, efficiency and peace of mind.
Schedule A Consultation For Your HVAC Construction Project
Whether you’re planning a new construction HVAC project, looking for specialty piping or ductwork, or considering a commercial HVAC replacement, Calcasieu is ready to support your goals with precision and care.
Contact our experts today to schedule a consultation. We’ll assess your plans, provide value-based recommendations, and ensure your system is designed to perform from day one.
Customer Reviews
Great company to work for !!! And to get your air conditioning needs
Blake Dowden
Delivered commercial AC units to them. Very quick unload and friendly, courteous employees. Only drawback is you have to back in from the road, which is a narrow, busy 2 lane. Other than that, 👍
Hector Olivas
What a great group of people, I been dealing with this group for 5 years, They’re # 1 in my book !!
Tommy Sirman
Great company with knowledgeable staff
Jeremy Tate
