Built on Experience. Driven by Results.
OUR TANK AND VESSEL CAPABILITIES:
- Design and engineering services
- Field-erected API 620/ 650 flat bottom storage tanks
- Field-erected AWWA D100 tanks
- Field-erected double bottom tanks with leak detection
- Field-erected cone bottom tanks
- Field-erected cone roof, dome roof, and self-supporting roof tanks
- Field-erected open top tanks
- Field-erected internal and external floating roofs
- Field-erected ASME Section VIII vessels
- Field-erected stacks and clarifiers
- Tank repairs and maintenance
- Customer – directed structural assessment of tanks and vessels
- Custom engineering design specific to the repair
- Welding and metallurgical guidance
- Coatings and corrosion control solutions
- Alterations and upgrades
- A variety of metals, including carbon, stainless, and exotic alloys
OUR AIR COOLED CONDENSER (ACC) AND AIR COOLED EXCHANGER (ACE) CAPABILITIES:
- Field installation of air cooled condensers (ACCs)
- Field installation of air cooled exchangers (ACEs)
- Modularization
- Welding of support structures, fan decks, and framing
- Assembly and erection of turbine exhaust duct and stream distribution manifold
- Fan gear box and motor installation
- Instrumentation and controls (temperature, vibration, flow monitoring systems)
- Piping installation and modifications (steam piping, condensate return, drains)
- Field-erected stacks and clarifiers
- Tank repairs and maintenance
- Blade changeout/ hub exchange
- Heat exchanger replacement
- Upgrades and retrofits
- Emergency outage support
- Preventative maintenance
Our highly skilled team has extensive experience in the erection of wind turbines, the installation of solar piers, tracking systems and PV panel installation.
Our highly skilled craft labor has been installing and maintaining equipment for over four decades and understand the criticality of heavy rigging, mechanical setting, engineered lift plans and precision alignment to 2/1000” to ready the machinery for commissioning. Our experience ranges from ASUs, scrubbers, crystallizers and evaporators to acid converters, distillation columns, steam turbines, gas turbines, air cooled condensers and much more.
We combine our decades of structural steel erection to ensure an accelerated schedule can be met at the highest level of safety standards we are known for. Working hand in hand throughout the duration of the project, communication is maintained and a tight budget is secured.
The importance of piping systems when considering operational efficiency and cost-effectiveness is paramount. Our expertise in modeling and installation of pipe spools ensures properly fabricated spools and our installation crew, alongside our equipment installation crews, provide control of schedule and quality.
Our capabilities span all aspects of tank and vessel construction and repair including design, modularization and erection. We regularly source materials and components from around the world and have highly skilled craft to work with stainless steel, carbon steel, chrome-moly, clad materials, duplex, nickel alloy, copper-nickel, ZeCor & exotic alloys ranging in thickness from 3/16” to 3 ¼”.
We have provided plant maintenance activities for over 44 years across all industries, helping our clients get the most out of their equipment. Utilizing predictive technologies, technical expertise, and a highly skilled union craft labor we help increase quality and safety and reduce downtime.
With 4+ decades of construction expertise, Milco National Constructors brings a depth of technical knowledge and operational versatility to every project. Our experience spans a wide range of sectors – from power generation to chemical processing facilities, demonstrating our capacity to execute across intricate scopes and disciplines. No matter the scale, specifications, or complexity, we’re trusted to deliver high-performance results: safely, on schedule, and within budget. Our approach is rooted in precision planning, disciplined execution, and a commitment to quality that’s been refined over decades in the field.
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We maintain memberships and certifications with national associations and government agencies, including the following:
We are certified by national associations to use the following stamps







