Blade repair

Customized recovery for every damage category

A damaged wind turbine blade directly impacts the turbine's performance and safety. Without timely repairs, the damage can spread, resulting in high costs or dangerous situations. By classifying the damage and addressing it specifically, we extend the lifespan of the blades and minimize downtime.

From minor damage to critical repairs

Wind turbine blades are exposed to a great deal of stress: from extreme weather conditions and high rotational speeds to transport damage and impacts from objects. Damage requires fast and expert repair to ensure safety, efficiency, and longevity.

Blade repairs may be necessary at any time – during transport, installation, or while the turbine is in operation.

That's why Redak carries out blade repairs in a wide variety of situations:

Lightning damage – a strike often causes internal and structural damage to the blade edge or the laminate.
Manufacturer damage – consider production defects such as insufficient bonding of components.
Transport damage – due to collisions with objects during transport, such as traffic lights or lampposts.
Installation damage – damage that occurs during the installation of the blades on the turbine.
Operational blade damage – Wear and tear and impact from external elements such as wind, rain, sand, and dirt.

Our specialists assess on a case-by-case basis whether a turbine can continue to operate or must be (temporarily) shut down to prevent further damage or risks.

Category 1: minor damage

Minor damage to the blade surface, such as erosion on the leading edge or loose components (vortex generators or STE). No immediate risk, so repairs will be carried out within 12 months during regular maintenance.

Category 2: minor structural damage

Small cracks in the laminate or loose adhesive bonds. The turbine can continue to operate, but repairs must be carried out within 12 months.

Category 3: major structural damage

Damage to more than two layers of laminate or exposed leading/trailing edges. Repair within six months is necessary to prevent worsening.

Category 4: severe structural damage

Damage to 3 to 5 layers of laminate flooring, cracks longer than 1 meter, peeling edges, and structural lightning damage. Requires repair within 3 months and monthly monitoring of the turbine. In some cases, interim emergency repairs are recommended.

Category 5: Critical damage

Severe structural damage with risk of blade loss, such as deep cracks, loose laminate, or failing adhesive bonds. The turbine must be shut down or monitored weekly. Repairs are carried out in the air if possible; otherwise, on the ground.

Why choose Redak?

Fast, efficient repairs: from minor interventions to complex repairs

Experienced, certified specialists: repairs according to the highest safety and quality standards

Direct collaboration with manufacturers: we work according to their official work instructions

Complete documentation: clear reports and damage analyses

Need your damage assessed or schedule a repair right away? We're happy to help.

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