Milling and roughening of concrete surfaces

Milling and roughening of concrete surfaces are key operations in preparing substrates for new floor systems and in repairing existing floors. At Calor d.o.o. we perform mechanical concrete milling to remove old coatings, level uneven surfaces and achieve optimal roughness for excellent bonding of new systems.

Depending on the existing floor's condition and project requirements, we adjust milling depth, tool type and final surface texture. This ensures a substrate that is structurally sound, properly roughened and ready for installation of industrial, epoxy, polyurethane or other final flooring solutions.

Service overview and challenges

The most common reasons for milling and roughening concrete are peeling or worn coatings, poor adhesion of existing systems, uneven surfaces, slippery floors or the need to install a new system that requires a specific substrate roughness. Every facility has its own specifics — load types, old layers, concrete grade and substrate condition.

Using professional milling machines and appropriate tools, we remove unwanted layers, open the concrete structure and correct unevenness with maximum control over working depth. We pay special attention to organizing work in active facilities to minimize disruption to daily operations.

Execution phases

Inspection and analysis of the existing floor:We assess the condition of the concrete substrate, the thickness and type of existing layers, the degree of damage and define the target level of roughness and milling depth required for the new system.
Mechanical milling and roughening:We perform mechanical milling of the concrete surface with specialized machines, remove old coatings, level uneven areas and add roughness as needed to ensure good adhesion of the final system.
Cleaning and preparation for the new system:After milling we thoroughly clean and vacuum the substrate and repair cracks and damage with appropriate repair mortars. The prepared surface is ready for installation of a new industrial, epoxy, polyurethane or other floor system.

Frequently asked questions

When is milling or roughening of concrete surfaces required?

Milling and roughening of concrete are required when old coatings, adhesives or damaged layers must be removed, uneven surfaces levelled, or substrates prepared for new systems such as industrial, epoxy, polyurethane or microtopping floors. It is also performed when greater roughness is needed for slip resistance.

What is the difference between grinding and milling concrete?

Grinding is used for finer surface finishing and uniformity, while milling is used for more aggressive material removal, eliminating thicker layers and achieving stronger roughness. Milling is ideal for heavier repairs, removing old coatings and correcting larger irregularities.

Does milling create a lot of dust and how long does it take?

We use machines connected to industrial vacuums, which significantly reduces dust. Duration depends on area, layer thickness being removed and the target roughness, but we organize the work to disrupt the facility as little as possible.