Infra

Infrastructure is also an important market segment for us. Whether it's work in residential and road construction, parking garages, or large projects such as the maintenance of concrete and steel structures on iconic infrastructural works like the pivot lock complex in the Afsluitdijk, nothing is too challenging for us.

The Power of SealteQ

We are the ideal partner for our clients for several reasons. We are creative in our solutions, communicate effectively with the right people, honor our agreements, and deliver high-quality work. Whether it concerns concrete, steel, masonry, or asphalt; our approach is multidisciplinary. Clients are increasingly opting to contract a single party for the realization of a project, known as integrated contracting. SealteQ not only creates the design but also executes the work itself. In some cases, the scope of work also includes the realization of multi-year maintenance for the completed project after its delivery. “Design & build”, “design & construct”, “turnkey”, and “maintenance” are just a few of the terms frequently used in this context, which are covered by “integrated contract forms (UAVGC).”

Decisive, Flexible, and Reliable

Planning is crucial within this market segment. Penalty clauses are also a factor. This means not only honoring agreements but also maintaining a flexible approach to prevent emergencies. As our client, you can expect this from us. And we aim to maintain that reputation. Are you therefore looking for a reliable, proactive partner? Then we would be pleased to collaborate with you to successfully complete projects.

Fire resistant coating

Earthquake Damage Repair

Undergrout

Wear layers

Spray concrete

Steel preservation cabin

Steel Preservation

Concrete leveling

New Wearing Course Boskampsbrug in Havelte

Concrete repair on the A1 viaduct in Ugchelen

Injection Tests for a Leak-Free Aqueduct in Friesland

Repair groundwater leakage road surface Vlaketunnel (A58)

Successful Sealing of Expansion Joint in Aqueduct N302 Harderwijk

Leaks in Boxemtunnel (N331) Zwolle successfully repaired

Conservation of duckweed gates and sluice gates Afsluitdijk

SealteQ recently provided the Boskampsbrug in Havelte with a new, durable wearing course. The work was carried out to make the bridge future-proof and keep it safe for intensive use. This renewal ensures that the bridge deck meets the highest standards in terms of durability, wear resistance and safety, so that road users can continue to count on a reliable and safe passage in the years to come.

SealteQ carried out concrete repairs on the viaduct under the A1 motorway in Ugchelen to restore its structural quality and service life. Wear and tear, weather influences, and minor damage had affected the concrete in some places, making maintenance necessary.

Together with Rijkswaterstaat, we are working on a solution for the leaking aqueduct near Akkrum. Four holes in the water-retaining foil of the Leppa aqueduct's trough structure cause approximately 3,300 litres of groundwater to leak daily into the submerged section. Two of these holes are located up to 10 metres below ground level. As this depth is difficult to access, special test setups and targeted injections are being used to investigate how the aqueduct can be made fully watertight and safe again.

At the end of June, it was discovered that groundwater was seeping up through the road surface of the Vlaketunnel (A58). This leakage in the road surface caused puddles to form on the asphalt, resulting in splashing water and creating a hazardous and unsafe situation for traffic. Therefore, a swift and professional solution was necessary.

On Saturday, May 17, 2025, SealteQ's specialists carried out specialized sealing work on the aqueduct in the N302 near Harderwijk, commissioned by Heijmans and the province of Gelderland. During these operations, a water-bearing expansion joint was successfully injected, resolving a leak of approximately 3.6 m³ of water per hour.

Leaks were detected in the expansion joint of the open section of the Boxemtunnel aqueduct on the N331. At low temperatures, freezing caused a risk of slipping for road users, which is why it was important to stop the leaks.

The specialists from the blasting cabin in Bergum, commissioned by Solidd Steel Structures, have provided the conservation of weed racks and sluice gates for the Afsluitdijk. SealteQ is proud to contribute to the impressive and large-scale project at the Afsluitdijk.

The specialists from SealteQ are currently involved in the renovation of the IJ viaduct at Amsterdam Central Station, a crucial infrastructure hub used daily by thousands of travelers. The IJ viaduct is the old steel structure beneath the tracks and platforms on the IJ side of the station.