24/7 Emergency
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.

Shell & Tube Product Line




Coolers
Condensers
Heaters
Boilers

Heat Recovery
Where It Works
Thermal Transfer
Thermal transfer is the movement of heat from one fluid, gas, or surface to another to either heat, cool, condense, or vaporize a process stream. In industrial applications, thermal transfer is essential for controlling temperatures, improving energy efficiency, and maintaining consistent process conditions.
Example products
Bottoms cooler
CO2 stripper reboiler / condenser
Feed/effluent exchanger
Gas chiller
Gas fractionation condenser
Interstage cooler
Lube oil cooler
Make up gas chiller
Natural gas exchanger
Overhead condenser
Process condensate cooler
Reflux condenser
Refrigerant compressor intercooler
Refrigerant condenser
Rich-lean oil exchanger
Stage chiller
Heat Recovery
Heat recovery is the process of capturing waste heat that would otherwise be lost and reusing it for a beneficial purpose elsewhere in a facility or process. Instead of allowing hot exhaust gases, steam, or process fluids to release their energy into the atmosphere, heat recovery systems transfer that thermal energy to another stream, reducing fuel consumption and improving overall plant efficiency.
Example products
BFW heater
CO2 superheaters
Crude preheat exchanger
Feedwater heater
Gas/gas heat exchanger
Instrument air dryer regen heater
Methanator feed heater
Reboiler
Waste heat boiler
Waste heat exchanger
Complete Thermal and Mechanical Design
Every shell and tube heat exchanger is thermally and mechanically designed to achieve the customer’s duty, site conditions, and code requirements, then fabricated in our shops and shipped with a thermal and mechanical guarantee.
Our capabilities extend through the equipment's entire lifecycle: design, fabrication, installation, repair, retrofit, and replacement. One company supporting your needs through initial purchase and all stages of operations.
Specifications and Capabilities
Construction
Pipe and shell sizes up to 120 in. diameter
Maximum weight of 400,000 lbs
Maximum shell thickness of 8 in.
Fabricated to ASME Code and TEMA standards
Applications
Data center heat rejection
Industrial process cooling
LNG and gas processing
Power plant heat recovery and cooling loop heat rejection
Replacement Solutions
Replacement tube bundles
Full component replacement including channels, heads, shells, and auxilliaries
Upgraded metallurgy for extending service life
24/7 emergency response
Materials We Fabricate
All nickels
300 and 400 series stainless steel
2205 and 2507 duplex stainless steel
Low alloys and low temp
Carbon steel
Weld overlays and mill clads
All chromes




