You are on the Global website.
Select country below for country specific services.
Your Partner in Solar Performance and Care
Alata
Alice
Open Sans
Noto Sans
Bebas Neue
Great Vibes
Rock Salt
Exo
Belgrano
Overlock
Cinzel
Indie Flower
Staatliches
Roboto Slab
Lato
Noto Serif
Open Sans
Montserrat
Ubuntu
Rubik
Delius
Amiri
Montserrat
Learn more about what we offer.
Care-free
Full or partial Maintenance of your PV plant, tailor-made.
Know your plant
Low Voltage commissioning or inspection measurements.
Don't miss a detail
Visual, Infrared and Electroluminescence inspections.
More than you expect
Upgrades, retrofits, repairs and much more!
Complete package
Vegetation control, Module cleaning
Check out our Blog for the latest news
Heliostoik, a specialist in solar operations and maintenance (O&M), is proud to announce its official entry into the Romanian market. As the region experiences rapid growth in renewable energy investments, Heliostoik brings a new level of quality, responsiveness, and field-proven expertise to the table. Why Romania? Romania stands at a pivotal point in its renewable energy journey. With ambitious EU climate targets and a surge in solar project development, asset owners need dependable O&M partners who can deliver long-term performance and value. Heliostoik is here to meet that demand. Powered by Local Expertise Our expansion is built on the strength of our dedicated local team —professionals with deep experience in solar asset management, maintenance, troubleshooting, and field service operations across Romania. Combining international best practices with regional know-how, Heliostoik is uniquely positioned to serve both utility-scale and C&I (Commercial & Industrial) projects. What We Offer Preventive & Corrective Maintenance Performance Optimization Technical Inspections & Reporting Troubleshooting & Emergency Response Vegetation Management (including grass cutting) Whether you operate 500 kW or 50 MW, we tailor our services to fit your needs. Let’s Talk Are you a solar asset owner, EPC, or investor in Romania? Reach out to our team to see how Heliostoik can help maximize the performance and longevity of your PV portfolio. 📩 Contact us!

Preventive Maintenance isn’t just a box to tick—it’s a strategy that saves real kWh and prevents costly surprises . Every time we carry out preventive maintenance, we always find something that could have become a problem: ✅ Modules with cracked glass —they might seem harmless now, but over time they lead to Riso faults and energy losses. ✅ Rodent activity —small spaces that look innocent today can be entry points tomorrow, damaging cables and components. ✅ Worn-out sealings —humidity finds its way in, leading to corrosion, insulation faults, and long-term damage. These issues don’t appear on your monitoring dashboard— until it’s too late . With a solid Preventive Maintenance program, we find and fix these early. That means higher uptime , fewer faults , and more energy generated —consistently. 🛠️ Preventive Maintenance Prevents Losses. And that’s not just a saying—it’s proven in every field visit we make. #solarpower #preventivemaintenance #solarO&M #yieldoptimization #energyefficiency #solarinvestment#solarmaintenance