Surveying services in construction

What the service includes

• Volume calculation. Accurate calculation of the volumes of excavation, fill and other construction works.
• Topographic survey. Precise measurement of the terrain to produce accurate survey maps and plans.
• Setting-out of axes and columns. Locating and marking the exact positions of the axes and columns of a building.
• Installing a levelling benchmark. Establishing a levelling benchmark for accurate and reliable levelling on site.
• Setting out the building line. Marking the building line that defines the limits of the construction site in line with the design.
• Establishing a site survey control network. Building a survey control network that serves as the reference for all construction and installation works.
• As-built survey. Documenting how the construction works were actually built. Details on the page as-built survey.

Who we work for

For construction companies, investors and private individuals building a house or a building. We have also worked on large industrial sites, for example setting out anchor groups for a 100-metre steel structure at Devnya Cement and monitoring deformations at the Maritsa East 2 power plant. See our completed projects.

Documents required

• an approved investment project (architecture, structures, surveying part);
• a construction permit;
• for opening the construction site: the documents required by the municipality.

Why the surveyor is on site throughout construction

An error in setting out the axes at the first slab carries through to every floor above. That is why we check positions and levels at every key stage: excavation, foundations, columns, slabs. Checking during construction is far cheaper than fixing things afterwards.

On industrial sites, such as steel structures and machine foundations, the accuracy requirements are higher. There we set out anchor groups and monitor deformations during installation and operation.

Why the surveyor is on site throughout construction

An error in setting out the axes at the first slab carries through to every floor above. That is why we check positions and levels at every key stage: excavation, foundations, columns, slabs. Checking during construction is far cheaper than fixing things afterwards.

On industrial sites, such as steel structures and machine foundations, the accuracy requirements are higher. There we set out anchor groups and monitor deformations during installation and operation.