We are

CONSERVATOR.

Conservator is an independent family business

with a long history

Conservator has been around since 1941 and for three generations we have been providing a wide range of cleaning services. For over 40 years we have been the experts in cleaning industrial installations.

Our guiding principles are to deliver the high quality, continuously improve processes, lead in safety and care for our employees and customers.

Conservator has been in business since 1941 and has grown over the years to become a trusted partner in cleaning and blasting techniques. What started as a small Rotterdam-based company has grown over the years into a specialist offering a wide range of services. For more than 40 years, we have been known for our expertise in cleaning industrial installations.

Our strength lies in the people who work here: committed professionals who ensure quality, safety, and continuity every day. We do it together—for our customers and with each other.

History

Conservator is a family-owned company with a rich history spanning nearly 85 years. Founded in 1941, the company started with preservation work in Rotterdam. The founders, two brothers named Mulder, laid the foundation for the enterprise. When the brothers had no successors, J.F.G. Holtappel, who was working for a competitor at the time, was invited to join Conservator with a view to a takeover. In 1958, he began his career at the company.
Conservator's history began in 1941, when the Mulder brothers laid the foundations with conservation work in Rotterdam. In 1958, J.F.G. Holtappel joined the company and continued to build Conservator's future. Thanks to these strong foundations and the dedication of several generations of employees, we have built up an excellent reputation over almost 85 years. Since August 2025, Conservator has been part of the KanalService Group. This allows us to continue our tradition, but now with the strength and network of an international organization. Our history and values remain at the heart of who we are, while we embrace new opportunities together.

Mission

Conservator is a family-owned company with a rich history of nearly 85 years, specializing in innovative industrial cleaning and blasting techniques. Since our founding in 1941, we have evolved from pioneers in preservation work to a leading partner for safe, efficient, and sustainable cleaning solutions across various industries. With dedicated professionals, advanced equipment, and a customer-focused approach, we strive to relieve our clients of their concerns, help them achieve their goals, and contribute to a better and more sustainable future.

At Conservator, everything revolves around reliability, craftsmanship, and progress. We want to take care of our customers with safe, efficient, and sustainable solutions for industrial cleaning and blasting techniques. With modern resources and a close-knit team of professionals, we strive to provide the best service while contributing to a cleaner, more sustainable future. As part of the KanalService Group, we remain true to this mission—and we have the opportunity to support our customers even better with the knowledge and experience of a strong international partner.
Als onderdeel van de KanalService Gruppe blijven wij trouw aan deze missie – én krijgen we de mogelijkheid om onze klanten nog beter te ondersteunen met de kennis en ervaring van een sterke internationale partner.

Vision

Conservator aims to be an equal partner in industrial cleaning for its clients. We focus on building long-term relationships and delivering customized solutions that meet our clients' specific needs. With our expertise, innovative techniques, and dedicated professionals, we strive to grow alongside our clients, optimize processes, and support them in achieving their goals in a safe, efficient, and sustainable manner.

Staff

We believe it is important that new employees receive proper training and that everyone within the company can take responsibility for results in their respective roles. Training and education, both external and hands-on, enhance our employees' engagement, motivation, and knowledge, enabling them to continuously improve their performance.

Innovation

At Conservator, innovation is a fundamental part of our strategy to optimize industrial cleaning in a sustainable and well-considered way. With our continuous focus on quality and safety, we continuously invest in new solutions aimed at increasing the efficiency and reliability of our services. In close cooperation with our customers and partners, we develop and implement technologies and methods that not only meet current industry standards, but also anticipate future developments in the sector.

Sustainable Entrepreneurship

Conservator takes its responsibility seriously by implementing a socially and environmentally responsible policy, actively contributing to a better environment. This is reflected in the products we use and our commitment to a sustainable procurement policy. We insist from our suppliers to adhere to these same standards. Additionally, we are actively involved in local social projects that support vulnerable groups. At Conservator, we believe in making a positive impact—not just through our work but also within society. That’s why we support charitable initiatives, sending a clear message that social responsibility is an essential part of our organization. Together, we are building a better future.

Customer Testimonials

Our customers are our ambassadors. We focus on building long-term relationships, using our expertise to jointly strive for excellent results. We consider optimizing our service as a matter of course.

Customers appreciate our commitment and our focus on safety and quality.

Rene Vooijs

HVC Dordrecht

Luc Westdorp

BMC Moerdijk

Testimonial

Reference by a company specialising in purification systems

Testimonial

Reference by a company specialized in beverage storage

John Veenboer

HVC

Mark Reiff

CMF

Arno Versteeg

Saint-Gobain Isover

Willem Hoffer

Onyx

Jack Konings

Syensqo

Hans Lok

VARO

VACANCIES

Step into the world

of the industry

Are you looking for a challenging and versatile job with good future prospects and excellent conditions. Then take a quick look at our vacancies and be welcome to join our team.