Repairs

A malfunction? Then you basically want one thing: to get back up and running quickly. We repair the necessary components, but not before first investigating the cause of the defect. That way, we address the problem in a targeted way.

Callens Group performs mechanical, electrical, and specialized repairs on industrial thermal, air, and emission-reduction installations. With experienced technicians, in-house specialists, and extensive technical know-how, we repair your installation quickly and sustainably, so your production is maximally available again.

Discuss your repair

What does the repair service by Callens Group involve?

When an installation becomes defective, fast intervention matters. It is just as important to correctly identify the cause of the problem. That is why Callens Group analyzes the malfunction, investigates the underlying cause, and performs the necessary repairs.

Our technicians have the expertise to perform both mechanical and electrical repairs on industrial thermal, air, and emission-reduction installations. You can also rely on specialized work such as welding repairs, overhauls, repairs to refractory brickwork, and other technical interventions that contribute to safe and reliable operation.

What can you expect in practice?

Every repair starts with a technical analysis of the installation and the cause of the problem. Depending on the situation, our service technicians perform tasks such as:

Diagnosis of the malfunction and analysis of the cause.
Mechanical and electrical repairs.
Replacement of defective or worn parts.
Certified welding repairs.
Overhaul of technical components.
Repairs to refractory lining and combustion installations.
Rapid availability of common spare parts and replacement components to minimize repair time.
Functional tests and inspection of the installation after repair.
Advice to prevent similar defects in the future.

After each repair, you receive a clear overview of the work performed, our findings, and our recommendations.

Not sure whether a part can still be repaired or should be replaced? Our specialists will be happy to identify the most sustainable solution.

Specialized repairs managed in-house

Some industrial repairs require very specific knowledge and experience. At Callens Group, we have our own specialists for work that is often outsourced, allowing us to intervene faster and fully monitor quality ourselves.

Concrete repairs on thermal oxidizers and thermal-oil installations

The refractory lining of thermal oxidizers and certain thermal-oil boilers is constantly exposed to high temperatures and thermal stress. Cracks or wear require specialized concrete repairs only a limited number of companies can perform. Our technicians have the expertise to carry out this work entirely in-house.

Certified welding repairs.

For welding repairs on industrial thermal installations, you do not need to rely on external contractors. Our certified welders perform repairs according to the applicable standards to get your installation operational again.

One specialized service team

All repairs are performed by dedicated service technicians who are thoroughly familiar with Callens Group installations. This allows us to move quickly when unexpected defects are found during maintenance and keeps the quality and safety of every intervention fully protected.

USPs

Why choose the repair service from Callens Group?

A defect calls for a durable solution. With specialized technicians and an extensive stock of spare parts, Callens Group performs repairs that go beyond conventional troubleshooting.

Quickly operational again

Repaired for the long term

The right expertise and spare parts immediately available

Looking for a partner for repairs to industrial thermal, air, and emission-reduction systems?

A defect does not have to turn into prolonged production downtime. Our specialists analyze the cause of the problem and develop a durable solution.

“In industrial installations, what matters is not only how quickly a defect is solved, but especially how confident you are that it will not return.”

FAQ

Questions? We have the answers.

Callens Group performs mechanical, electrical, and specialized repairs on industrial thermal, air, and emission-reduction installations. This includes welding repairs, overhauls, repairs to refractory lining, component replacement, and technical interventions on process installations.

That depends on the technical condition of the installation, the nature of the defect, and the remaining service life of the component. Our specialists analyze each situation individually and recommend the solution that is most appropriate from both a technical and economic perspective.

Yes. In the event of unexpected defects, you can rely on our 24/7 service department. Depending on the nature of the problem, we support you by phone, through remote support, or with an on-site intervention to get your installation operational again as quickly as possible. View our maintenance and service contracts for a suitable formula with services that make the difference for you.

Yes. Callens Group has specialized technicians who perform certified welding repairs on industrial installations. This means many components can be repaired safely and sustainably without requiring full replacement.

Every repair starts with an analysis of the underlying cause of the defect. Based on that analysis, our specialists recommend additional maintenance work, technical optimization, or installation adjustments where needed. This reduces the likelihood of a similar problem in the future.

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