Key Delivery Team

Active have assembled an exceptional team with a broad range of experience that combines to create a strong strategic and operational unit. Collectively, the team has expertise in civil engineering, demolition, asbestos removal and management, Health & safety, and regulatory compliance. Key personnel are as follows:

Adrian Maelzer – Director – Demolition and Strip Out

Adrian has over 26 years of experience within the demolition and asbestos removal industry having worked with a vast range of clients. He has a wealth of knowledge and capability to oversee the completion of vast projects from start to finish such as UK Supreme Court modernisation and renovation works, Dorchester Hotel Park Lane refurbishment works and the structural alteration of the Great Northern Hotel to name a few.

Tom Walker – Director – Asbestos and Environmental

Tom has established 15 years’ experience within the asbestos removal and environmental management sector, having managed projects across the UK for a variety of sectors such as various district and local councils, health authorities, property portfolios, hospitality, manufacturing, industry, warehousing, transport, and construction.

Dewet Oosthuizen – Senior Contracts Manager

Dewet has worked within the asbestos removal industry since 2005 having completed numerous keystone projects throughout London and the UK. His in-depth knowledge of the asbestos removal/remediation industry has come from working on a wide variety of projects providing remediation solutions for a varied client base having worked on both prestige, multi-million pound contracts as well as smaller scale projects.

Samuel Maelzer – Business Development

Sam established himself within the group supporting with site management roles in both the construction and demolition elements of the business for 10 years. Sam has progressed onto business development where using his knowledge of the industry he is concerned with improving and growing the business, by fostering and developing relationships with customers, suppliers and other partners.  Sam’s drive and knowledge will help improve profitability through careful strategic planning and positioning in the appropriate markets.

Tom Tobin – Demolition Manager – Demolition and Groundworks

Tom has established himself as an important part of the team with his wealth of knowledge in the demolition of different types of structure. With 33 year’s experience in the construction/demolition and groundworks industry Tom has overseen some of our more complex projects such as De Beers, Charterhouse, Street demolition and The Old Gramophone Works cut and carve works.

Key Contacts


Tom Walker, 01582 667 000 |


Adrian Maelzer, 01582 667 000 |


Adrian Maelzer, 01582 667 000 |

All Other Enquiries

01582 667 000 |