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The Complete Thermal Lifecycle Partner
Built around safety, quality, schedule, and value.
Our story, values, safety, quality, ESG, certifications, and facilities.
Thermal expertise, manufacturing excellence, field execution, and lifecycle support.
Experienced leaders devoted to customer success.
Positioned to serve customers across North America.
Heat Transfer Equipment Built for Critical Infrastructure
Air cooled heat exchangers, shell-and-tube heat exchangers, process equipment, and specialty fabrication designed for reliability, performance, and lifecycle value.
Solving Thermal Challenges Across Critical Infrastructure
Cust-O-Fab supports the industries that power modern life through engineered heat-transfer equipment, specialty fabrication, and field execution.
Supporting continuous operation where reliability matters most.
Cooling the servers enabling the AI revolution.
Equipment for renewable fuels and energy projects.
Heat recovery and process cooling equipment.
Reliable equipment for gas processing, transport, and export infrastructure.
Engineered heat transfer for complex process environments.
Ammonia condensers and fertilizer process equipment.
Specialty fabrication for launch and test infrastructure.
Thermal performance for dependable power production.
Heat exchangers and vessels for gas separation and liquefaction.
Process equipment and field services for mining operations.
Field Execution That Extends Beyond Manufacturing
Engineering, installation, repairs, and lifecycle support delivered by experienced field teams.
Innovation
Insights, tools, and guidance for getting more performance and uptime from your heat transfer equipment.
Getting more duty, efficiency, and service life from existing heat-transfer equipment.
Literature, data sheets, guides, and specifications.
The digital design, modeling, and simulation tools behind our engineering.
Updates, project stories, and visual explainers.
How people, automation, and data work together in our shops and in the field.
An interactive 3D look at what we build.
Build More Than a Career
Skilled trades, engineering, and field careers with a team that puts safety first.
Power Generation Services
CUST-O-FAB’s Specialty Services dedicated power group is fully equipped to provide turnkey services for engineering, design, fabrication, retrofit, repair, and installation projects.
With decades of experience, our engineers, schedulers, craftspeople, and supervisors have earned a reputation across the power generation industry for executing projects and shutdowns safely, on time, and within budget, with quality craftsmanship on every job.
Our Services
High Energy Piping & Module Repairs
Specialized fabrication, repair, and replacement of HRSG and OTSG modules and high-energy piping systems.
Module tube repair and mirror welding
Main steam control and high pressure steam valves
Hot and cold re-heat piping, flow nozzles, thermowells, and wye blocks
SA/A335 (P5, P9, P11, P22, P91) and SA/A691 (1¼, 2¼, 5, and 9 chrome)
Filter Houses & Inlet Systems
Filter houses and inlet cooling systems that protect your gas turbine and improve performance, with turnkey engineering, fabrication, installation, and aftermarket repair.
Filter house design improvements for better metallurgy and improved flow
Expansion joint design, fabrication and replacement
Silencer panel and ducting fabrication, demo, and installation
Inlet Bleed Heat (IBH) piping systems
Exhaust Systems
Engineered exhaust system solutions, including silencers, ducting, plenums, stacks and liners, that improve reliability, thermal performance, and longevity.
Engineered turbine exhaust plenum fabrication, demolition, and installation
Double-sealed wing door
Internally insulated, full-floating internal liner with a drainable, shingled liner floor
Expansion joint with a cold flange design
Cranes lifting a structural steel frame at a power plant site
Structural Support
Structural steel fabricated around your project requirements, including hard-to-source materials others can’t procure.
Engineered module support and lift systems
Skids, pipe rack modules, columns, and trusses
Shapes - 8-axis robotic thermal cutting up to 50 in. wide
Plate - Combined capability CNC machine used to thermal cut, bevel, drill, tap, and mill
HRSG and OTSG Aftermarket and Retrofit Solutions
CUST-O-FAB’s engineering and scheduling teams take a custom approach to each project to meet or exceed specifications. Our knowledgeable and experienced team is proficient in state-of-the-art processes that improve efficiency and reduce turnaround time.
Our innovative approach means you can count on CUST-O-FAB to solve challenging problems involving complex subsystem integration.
Harp and module replacement
Exhaust ductwork replacement, improved design
Exhaust liner replacement, improved design
Duct burner and flow grid replacement
Main steam control valve (MSCV) replacements
Harp and coil repairs (ASME Code stamps)
Expansion joint replacement
Piping fabrication and installation
High energy steam piping
Specialty welding
Heavy rigging specialist
Emergency services
Turbine enclosures
Structural steel
Heat exchangers
Innovative Upgrades
Our engineering teams have improved the designs of common failure points on FS-7F and larger units, identifying key stress points for legacy systems.
FS-7F A042 Duct Liner System Upgrade
New liner system completely lapped for gas flow
Eliminates original field joint liners lapped against flow
Redesigned trough liner adds support and thermal expansion allowance
Improved insulation materials that resist loss of fill
FS-7F Expansion Joint Flex Seal Upgrade
Extended outlet flange on the 0706 duct for thermal protection
Heat-treated hi-alloy flex seals in three layers that reduce leakage points
Wrapped insulation pillows