Mechanical services
Comprehensive mechanical support for Alstom gas and steam turbines. Delivering expert maintenance, upgrades, and overhauls to extend equipment life and ensure peak performance.
Comprehensive mechanical solutions for gas & steam turbines
We provide complete mechanical support for Alstom turbines and related power generation assets. From planned outages to emergency response, our expert advisors and skilled craft deliver end-to-end execution backed by OEM experience and a commitment to quality. Powered by HTS, an AP4 companyTurnkey outage execution
Whether you’re preparing for a scheduled C-inspection or facing an emergent outage, our team delivers decades of mechanical expertise across Alstom and ABB equipment, as well as other makes and models. We support all legacy Alstom, ABB, and BBC assets, including but not limited to Alstom GT26, GT24, GT13, and GT11
Full-scope mechanical outage support
Outage preparation, planning, and supervision
Owner’s representative or full turnkey execution
Fleet-wide service capabilities
Turbine and valve overhaul
Gas and steam turbine major overhauls (C-Inspections)
Hydraulic valve rebuilds (Voith, Pruss, and others)
VIGV servo actuator rebuilds (in-shop or onsite)
Balancing and alignment for rotating equipment
Parts refurbishment & replacement
Hot gas path parts refurbishment (in cooperation with TRS)
New part supply and open/close kits for inspections
Fleet-wide rotor life assessments and recommendations
Why AP4?
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OEM-trained engineers and technicians
HTS, an AP4 company, was founded by Alstom and ABB engineers and other specialists
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C-inspection experience
50+ major inspections completed
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Rapid response
Rapid-response mechanical teams available 24/7
Want to accelerate your performance? Let’s chat.
Our experts are on hand to work with you to solve your operational challenges.
