NIS Roof Services – Our comprehensive customer service for everything related to your flat roof.

Our individual service concepts offer a wide range of services relating to the inventory, maintenance and monitoring of industrial and commercial flat roofs. So you have a reliable basis for investment decisions and greater sustainability.

You have everything available at a glance - inventory and cataloguing

With our interactive roof surface cataloguing and inventory using drones, we create 3D documentation of inaccessible objects with true-to-scale, digital image representation.

Have all your roof areas available to look at at your desk in detail and manage every square metre of your flat roof conveniently. Always have the current status quo at your fingertips.

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Regular roof checking - with us you’re in the best hands

Even the smallest damage is detected and repaired before it becomes a major problem thanks to expert and professional roof maintenance by the NIS flat roof experts.

Our digital and comprehensive maintenance log provides you with the basis for deciding on necessary maintenance measures.

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Flat roof safety with NIS Safety

Safety is a top priority when working on the roof. We offer a comprehensive range of preventive occupational health and safety services when working at heights so you can comply with your operator responsibility.

Benefit from our safety expertise. And you will climb to the greatest heights.

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NIS Kundendienstmitarbeiter im Gespräch über eine Dichtigkeitsprüfung

Maintenance concept designed by the experts - NIS Roof Protection Plan

With the Roof Protection Plan, NIS offers you a modular and certified roof maintenance concept. In addition to the basic services of quality roof maintenance, the RPP includes the following modules

  • Surveys using the latest technology
  • Leak tests on the flat roof
  • Safety checks of the roof surfaces
  • Innovative flat roof monitoring
  • Inventories & cataloguing
  • 24/7 roof SOS hotline

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NIS Roof Services | NIS Roof Management | Prüfung und Erfassung notweniger Reperaturen

Repairs, maintenance

In case of leaks in the flat roof, quick action is required. We are available to our customers nationwide with a 24/7 roof SOS hotline for emergency waterproofing and minor repairs.

Machen Sie den PV-READY CHECK von NIS

PV-Ready-Check

With the PV READY CHECK, you can determine whether your flat roof is suitable for installing a PV system.

Flachdach mit PV-Anlage und Begrünung

PV Maintenance

Maintenance services include all work on a photovoltaic system that is preventative and necessary to ensure maximum availability and structural integrity.
 

NIS Winter-Check Reinigung PV-Anlagen

Cleaning of PV systems

Maximum performance thanks to clean modules: Dirt, dust, leaves, and bird droppings reduce the energy yield of your photovoltaic system by up to 20%. With our professional PV cleaning service, you get full performance while protecting the surface of your modules. We clean in an environmentally friendly way, using demineralized water and special soft brush systems, ideal for industrial buildings, flat roofs, and open spaces. We ensure that your solar modules perform at their best.

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NIS Winter-Check Reinigung Werbeschilder

Cleaning of advertising signs

Your outdoor advertising on roofs and at height must be visible, clean, and prominent, especially in the cold season when snow, ice, or salt leave behind residue. With professional cleaning of advertising signs, illuminated signs, and facade lettering, we ensure that your message is noticed.

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NIS Roof Services | NIS Roof Management | Gründachpflege | Fachgerecht und kostengünstig

Green roof maintenance - professional, cost-effective

The green roof can only fulfil its intended function in the long term if it is regularly maintained. We ensure that your green flat roof is professionally cared for and maintained.

NIS Winter-Check 2025

Winter check for safety and efficiency

Winter is approaching, and with it the time when minor defects can quickly turn into major problems. With our winter check, you can ensure that your roofs, PV and advertising systems, and shelves are well prepared.
 

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Flachdach Schneemanagement mittels Sensoren

Snow management & snow removal

The weather conditions associated with climate change are increasingly leading to heavy snowfall and stress on your flat roofs. With NIS Snow Management, you can ensure sustainable safety.

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NIS Winter-Check Prüfung Schwerlastregale

Inspection of heavy-duty racking

Safety regulations regularly apply in warehouses and production areas, especially for heavy-duty racking. All commercially used racking systems should be tested in accordance with DIN EN 15635 and DGUV 208-043. With our expert inspection, we identify damage, check the load-bearing capacity, and document everything professionally so that you have your operational safety and liability under control. Make an appointment for a racking inspection now.

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"NIS is a reliable partner for me and allows me to round off the services I offer my customers."

Benjamin Bock, Bock Industriebedachungen GmbH

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