About us

Long-lasting moisture protection in concrete, developed, made and tested in Norway’s coastal climate.

We have partnered with Mango Logistics Group to ensure faster, hassle-free deliveries across the UK, with all orders shipped locally—saving you from additional tax and toll charges.

Innerseal.co.uk / Betongtett AS is a family-owned company located in Askøy, Norway, approximately 20 kilometers outside Bergen.

We develop, produce, and supply our own impregnation solutions to combat moisture issues in masonry and concrete. All our products are based on extensive practical experience in both fieldwork and product development. We own the trademarks Betongtett (N), Roofseal (N), Controll (N/EU), Innerseal (EU), Condeck (N/EU), and Topseal (EU).

Our product development emphasizes environmental considerations, product effectiveness, and performance. Therefore, all our products meet applicable requirements and standards, both nationally and internationally. This has resulted in excellent references and feedback from both domestic and international clients.

The team at Betongtett AS possesses significant knowledge and experience in dealing with moisture issues in masonry and concrete. As a result, we are always able to provide our customers with qualified advice and practical guidance.

Additionally, our production is quality-assured and certified according to European standards, specifically NS-EN 1504-8 system 2+. We are also environmentally certified in accordance with ISO 14001:2015

SPECIALISTS IN MOISTURE PROTECTION FOR MASONRY AND CONCRETE.

Concrete is a durable, strong, and long-lasting material in many ways, and some even believe it lasts forever. However, due to its porosity, concrete is vulnerable to water and moisture, which can carry substances such as salt and CO₂ into the structure. These substances, in turn, attack the concrete’s binding agents as well as its core and backbone—the reinforcement. Therefore, it is important to understand that all concrete requires impregnation for protection in order to maintain its strength and longevity.

We specialize in sealing, preventing, and solving moisture issues in all types of concrete structures. This is what we do best.

OUR PRODUCTS ARE VERSATILE AND DESIGNED TO PROVIDE LONG-LASTING PROTECTION ACROSS VARIOUS APPLICATIONS

We have partners in Europe, Africa, South America, the Middle East, and Asia. With authorized contractors within reach worldwide, our products and solutions are available for both small and large projects. Our operational and mobile teams have developed unique expertise and extensive experience in both preventive protection and moisture-related issues across various fields. Our concrete impregnation protects surfaces in extremely harsh environments such as heavy industry, biogas plants, automotive workshops, agriculture, logistics, treatment plants, and power plants.

THE FUTURE OF SURFACE PROTECTION IS INTEGRATED INTO THE CONCRETE

The environmentally friendly technology we work with was originally specially developed in the 1970s and 1980s during the construction of the Norwegian Condeep platforms (concrete substructures) in the North Sea. Despite the harsh climate, these platforms are still in operation today.

Since the mid-1990s, we have further advanced the water glass technology through several generations, and today our products are used in parking garages, biogas silos, port facilities, and power plants around the world.