Excellence in Engineering.
Proven to Serve.
Reliable solutions, precision execution, and service you can trust — at every stage of your project.
About us
ALENOVA – Engenharia e Prestação de Serviços, LDA is a trusted name in the industry, recognized across Angola and beyond for delivering high-quality diesel and gas engine maintenance, fabrication, and machinery services.
Headquartered in Luanda, Angola, ALENOVA has earned a loyal customer base by consistently providing dependable, cost-effective solutions tailored to demanding industries. Our reputation as a leading service provider stems from our ability to support high-performance operations while keeping running costs low. With globally certified service professionals, ALENOVA offers world-class services adhering to the highest international standards in quality, health & safety, and environmental protection.
We support a broad spectrum of leading engine manufacturers, including:
CATERPILLAR, CUMMINS, MAN, MITSUBISHI, MAK, DEUTZ, PERKINS, YANMAR, DAIHATSU, ROLLS ROYCE-BERGEN, DETROIT, MTU, NIIGATA and more.
We specialize in maintenance and overhauling services for both high-speed and medium-speed 4-stroke engines, ensuring optimal engine reliability for users who expect the highest levels of performance and service.
Our certified technicians have deep expertise in:
2-stroke and 4-stroke engine overhauls
Medium and high-speed engine servicing
Turbocharger maintenance
Custom fabrication and machinery repairs
With a proven track record and a global service reach, ALENOVA supports clients in the Marine, Oilfield, and Power Plant sectors—working on engines of all makes and models.
To provide a level of service that will exceed our client’s expectations, maintain the highest level of quality to instil confidence in all parties by professionally managing all aspects of every project, large or small.
OUR MISSION :
Engine Overhaul Services
We offer complete mechanical overhauls for diesel and gas engines both on-site and in our workshops. Our team responds swiftly and works with precision to minimize downtime and maximize reliability.
Our engine overhaul services cover:
Disassembly and reassembly of engine components
Cylinder head servicing and valve inspections
Piston and connecting rod repairs
Cylinder liner removal and honing
Inspection of crankshaft, main, and thrust bearings
Fuel pump and injector overhauls
Camshaft and bushing maintenance
Charge air and oil cooler servicing
Pump overhauls (LO/FW systems)
Crankshaft alignment and deflection measurements
Full engine load testing and performance checks
Onsite & Afloat Maintenance
We offer complete field-based maintenance support—whether on vessels, remote power plants, or mining/construction sites. ALENOVA brings the workshop to you, equipped and ready.
Services include:
Major and minor engine overhauls (main & auxiliary)
Valve grinding and seat cutting
Liner honing and reconditioning
Crankshaft grinding and polishing
Common and specialty pump repairs
Electrical fault diagnosis & motor rewinding
Turbocharger balancing and repair
In-situ boring and alignment
ET-based diagnostics for performance issues
Workshop Capabilities
Our advanced workshop is fully outfitted for heavy-duty repairs and reconditioning of engine and electrical components.
Key equipment and capabilities:
Lathe, radial drilling, and honing machines
Valve seat refacing and grinding tools
Injector calibration and pressure testing stations
Turbocharger disassembly and balancing setups
Hydraulic press (heavy-duty)
NDT inspection tools (for crack detection)
Overhead crane for large component handling
Cooler chemical and HP cleaning system
AC systems flushing and gas charging
Liquid nitrogen seating for precision fit parts
Component Reconditioning
We extend the life of critical engine components through OEM-standard reconditioning processes—helping reduce costs while maintaining reliability.
We recondition:
Exhaust valves (spindles and seats)
Pistons and crowns
Cylinder heads
Turbochargers (including crack repair)
Motors and electrical units
All work begins with a detailed failure analysis to ensure root causes are addressed before repairs are made.
Exchange Component
We offer multi-component parts on an exchange basis, in accordance with our favourable exchange conditions.
The multi-component parts in our exchange stock undergo a complete overhaul at our workshop according to the engine manufacturer standards. Each part is completely dismantled and carefully inspected and replaced as per the required .standards.
EXPERIENCE
ALENOVA has successfully executed high-complexity mechanical projects across Africa, Asia, and beyond. Our reputation is built on technical expertise, speed, and safety.
Representative Projects:
Overhaul of Caterpillar 3400, 3500, and 3600 engine series
Complete servicing of 3516B & C32 engines aboard KOTUG vessels
Cummins KTA 19D genset overhaul – Vessel: Lewek Altair
Caterpillar C32 genset overhaul – POSH Teal, Namibia
Wartsila W26 engine overhaul – Halul 23
CAT 3516B engine service – MV POORNA
C18 engine overhauls on multiple offshore vessels across India & Dubai
Wartsila W34SG (5 units) – Power Plant, Dakar
CAT 3412 & 3406 overhauls – Ivory Coast & Ghana
Common rail and mechanical fuel injection system servicing
Laser alignment, line boring, and crankshaft machining
Mobilized teams for Wartsila servicing in Singapore
Multiple turbocharger rebuilds and balancing
Successful troubleshooting of complex electrical faults
Use of advanced precision tools for calibration and diagnostics
Contact Us
Whether you're facing an urgent repair or planning routine maintenance, ALENOVA is equipped to deliver fast, reliable, and expert service—on-site or at our fully equipped facility.
tech1@alenova-intl.com