Merrett Survey Limited, is a leading independent professional topographical survey practice that was formed in 1982 by Peter Merrett, a mining engineer and surveyor, and Michael Fraser, a Chartered Land Surveyor and photogrammetrist.
The company started out as Merrett Survey Partnership but in 2007 converted to Limited Company status. Our profession has gone through some name changes that better reflect the data management aspects of our work, with the term Geomatics now changing to renamed ‘Geospatial’ – which is the science of collecting, analysing and implementing data relating to the earth’s surface.
To date, the company has worked in more than 60 different countries and on every continent except Antarctica, and in a wide variety of environments. From above the Arctic Circle in Greenland, deserts in Algeria, Libya and Sudan, urban sites in London, the Philippines and Australia, through to the forests of Cameroon and Equatorial Guinea.
In 2016, Merrett Survey opened a subsidiary office in Cameroon to better serve our clients in West and Central Africa regions. This operates as Africa Precision SARL.
The aim of the firm is to provide clients with a professional and comprehensive data management, land survey and topographical mapping service; giving value for money whilst maintaining quality, accuracy and a promptness. The company also provides water based surveys for bathymetric and hydrographic surveys, plus aerial surveys with airborne Lidar and photogrammetric methods. We go below the ground with our mining survey skills.
In recent years, the application of new geomatic technologies to the survey profession has radically changed field survey and topographic survey equipment, as well as the data handling procedures. Merrett Survey invests in the latest technologies, including terrestrial laser scanners, high accuracy GNSS, aerial Lidar, UAV surveys and ‘robotic’ non-contact total stations. We also provide 3D modelling for BIM inputs.
Terrestrial Laser Scanning (HDS – High Definition Surveying) provides an ideal method for rapid surveys of structures and buildings that are then modelled in 3D for use in BIM software. HDS has many applications such as surveying engineering structures, cliff monitoring and highway surveys.
The scanners record data points at up to 1 million points per second and match the accuracy of conventional survey equipment. As a non-contact instrument, it can be very useful in hazardous areas where it would be unsafe to survey using a conventional instrument.
Merrett Survey is able to offer a professional land survey and topographic mapping service for the production of traditional graphical line maps and plans, as well as GIS projects and coordinated Lidar point clouds. Through the use of both proprietary and in-house software, data can be supplied in various digital formats, including
Merrett Survey Limited – with expertise gained over 20 years in the practical application of GPS – our company has become one of the most experienced providers of GPS (GNSS) positioning services. Services include; control networks, ground truthing and quality confirmation work for projects such as airborne laser scanning and photogrammetric control. In addition GPS ground control has been provided to a variety of mapping companies and organisations including the Ordnance Survey – the UK’s National Mapping Agency.
Merrett Survey actively seeks overseas work and has considerable international experience, including:
To learn more about Merrett Survey and what the Merrett Mining Survey team can do to enhance the efficiency and timescale of your new or existing project, contact our team.
