Unsound floor layer removed
The deteriorated floor layer and old filler are removed back to sound concrete, opening the slab-to-façade junction for repair.
Complete balcony renovation
We restore balconies. We protect the building structure.
Complete renovation for apartment associations: we repair concrete and reinforcement, seal joints, and create multi-layer protection against moisture and corrosion.
COMPLETE RENOVATION. A CLEAR PLAN. CONSIDERED PROTECTION.
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Six layers. One complete system.
Each element has a specific role: the substrate carries the load, the bonding layer connects, the fall directs water and the elastic finish protects the surface.
- Existing concrete slab
The load-bearing structure is opened, cleaned and assessed before new layers are installed.
- Epoxy bonding adhesive
A two-component epoxy adhesive connects the existing concrete with the new repair and drainage-fall layer.
- Repair and drainage-fall layer
A cement-based layer reinstates the substrate and creates the required fall toward drainage.
- Epoxy primer
A two-component epoxy primer prepares the cured mineral substrate for the elastic coating.
- Elastic polyurethane coating
A continuous, seamless elastic layer forms the balcony floor's protective surface.
- Decorative surface broadcast
System-compatible decorative flakes are broadcast into the fresh coating to create the surface texture and final appearance.
Exact materials and thicknesses are selected according to substrate condition, moisture, service load and the approved project specification.
- Work stage 02: Water finds the weak point
Worn coatings, cracks and open junctions allow moisture into the structure.
- Work stage 03: We remove the damaged layers
The deteriorated floor layer is removed and the slab-to-façade junction is cleaned back to load-bearing concrete. Exposed rusty reinforcement reveals how water can reach the building structure.
- Work stage 04: We clean and prepare the surface
Rust, unsound material and dust are removed, exposed reinforcement is cleaned and assessed, and visibly decayed supplementary timber is dismantled.
- Work stage 05: We seal cracks and junctions
The slab-to-façade junction, cracks and gaps are filled with an exterior-grade elastic hybrid sealant that accommodates moisture and temperature-related movement.
- Work stage 06: Corrosion protection for reinforcement
Cleaned reinforcement receives a blue one-component cement-polymer passivating anticorrosion coating compliant with EN 1504-7 and promoting repair-mortar adhesion. Railing fixings receive a separately specified protection system based on the metal condition.
- Work stage 07: A bonding bridge and renewed substrate
An epoxy bonding bridge connects the existing concrete to an exterior-grade EN 1504-3 class R4 repair and casting mortar used to restore the surface and form the drainage fall.
- Work stage 08: One seamless coating system
Mineral quartz broadcast, an elastic UV-stable polyurethane coating, decorative polymer flakes and a transparent protective topcoat form one seamless system.
- Work stage 09: Six layers. One working system.
The concrete substrate, epoxy bonding bridge, R4 repair layer, epoxy primer with quartz broadcast, elastic polyurethane coating and a decorative finish sealed by a transparent topcoat work as one complete system.
- Work stage 10: We finish with cleaning and inspection
We clean the work area, complete the slab-junction seals with an elastic hybrid sealant, inspect the finished surface and provide care guidance. The final solution is confirmed against the building's actual condition.
Our working standard
We close the paths water uses to enter, helping keep damp, cold and mould from returning.
- 7working days
- A complete renovation of one balcony typically takes 7 working days.
- 10years service life
- The system is designed for a 10-year service life with long-term moisture protection.
Watch a balcony renovation on a real project
The video shows an actual balcony-renovation process from start to finish. The initial condition and required repair solution differ for every building.
How we renovate a balcony
Balcony renovation starts with the cause of the damage.
Water can enter the structure through open joints and damaged junctions. Moisture may then build up in the structure and contribute to damp, mould and cold areas inside apartments. We address the cause rather than hide the symptoms: opening damaged areas, repairing concrete and reinforcement, sealing the junctions and protecting the balcony with a multi-layer system.
Passivating protection for reinforcement
The blue cement-polymer passivating layer restores the reinforcement's alkaline protective environment and reduces the risk of further corrosion before the concrete is reinstated.
Elastic polyurethane coating and final finish
A continuous elastic polyurethane coating is applied over the mineral-broadcast substrate; the compatible finish forms the seamless protective surface and its final texture.
The work process: from substrate to finish
This typical sequence covers the balcony floor, slab edge and damaged concrete-façade details. Each chapter links to a representative frame in the scroll-controlled video; not every listed operation is shown separately. The exact scope, materials and control points are confirmed after a site inspection.
Opening up and removing damaged material
Renovation begins by opening the damaged layers and completely removing unsound material.
Removal of the damaged floor layer
Weak and deteriorated cementitious material is mechanically removed until a sound load-bearing substrate is reached.
Opening and cleaning the façade junction
Old filler, contamination and unsound material are removed from the junction between the balcony slab and façade.
Cleaning the railing-post bases
Loose rust and contamination are mechanically removed before the metal condition is assessed.
Reinforcement condition assessment and protection
The exposed reinforcement and local details are assessed before reinstatement; unsound material, dust and visibly decayed supplementary timber are removed.
Assessing exposed reinforcement
The reinforcement condition and remaining section are assessed. Any need for strengthening, replacement or welding repair is determined by a competent specialist after examining the structure.
Local preparation and de-dusting
The threshold, fixings and damaged metal or concrete details are cleaned and ground, loose particles are vacuumed away, and decayed supplementary timber is dismantled where present.
Passivating anticorrosion protection for reinforcement
A cement-polymer passivating anticorrosion mortar compatible with the repair system restores the reinforcement's alkaline protective environment and reduces the risk of further moisture-driven corrosion. Railing fixings receive a separately specified solution according to metal type and condition.
Elastic exterior joint sealing
Cracks, gaps and slab-to-façade junctions are prepared and sealed with an exterior elastic solution that accommodates normal structural movement.
Preparing the junctions
Old filler, contamination and loose residue are removed so the sealant can adhere to sound, clean joint faces.
Sealing with an elastic exterior joint sealant
The prepared joint is filled with an elastic exterior sealant suitable for façade and floor junctions and resistant to cold, moisture and normal temperature-related movement.
Epoxy bonding adhesive and drainage fall
An epoxy bonding adhesive connects the existing concrete to a system-compatible cement-based repair and drainage-fall layer that reinstates the substrate and directs water toward the outlet.
Applying the epoxy bonding adhesive
A two-component epoxy bonding adhesive is applied to clean, dust-free concrete to connect the existing structure with the fresh cement-based repair mortar.
Preparing the repair and drainage-fall mortar
A cement-based repair and drainage-fall mortar compatible with the selected system and suitable for exterior moisture and temperature changes is mixed according to its technical data sheet.
Forming the drainage fall
The mortar is placed and levelled toward the outer edge or drain to reduce standing water.
Epoxy primer and mineral quartz broadcast
The cured repair and drainage-fall layer is primed, and a system-compatible mineral aggregate is broadcast into the fresh primer to create a bonding surface for the next layer.
Applying the epoxy primer
Once the repair layer has cured and been prepared as specified, a two-component epoxy primer is applied.
Applying the mineral broadcast
A dry system-compatible mineral aggregate is broadcast into the fresh primer to create an even mechanical key for the elastic coating.
Elastic polyurethane coating and decorative finish
The epoxy primer, mineral broadcast, elastic polyurethane coating and decorative finish form one integrated coating system.
Applying the elastic polyurethane coating
A continuous, seamless, elastic pigmented polyurethane coating is applied at the system-specified thickness over the prepared substrate.
Applying the decorative finish
A system-compatible decorative material is broadcast into the fresh polyurethane coating to create the balcony floor's texture and final appearance.
What housing associations ask
Frequently asked questions
Clear answers before the inspection, proposal and work planning.
Is the site visit and initial inspection free?
Yes. The specialist’s site visit and initial inspection are free of charge.
How long does one balcony take?
A complete renovation of one balcony typically takes seven working days. The overall schedule depends on the number of balconies, extent of damage, required curing intervals and weather.
What should residents do before work begins?
Before work starts, we agree access arrangements and give the housing association clear instructions for emptying balconies and keeping the work zone safe.
Can weather affect the schedule?
Yes. Temperature, rain and required curing times affect the sequence of exterior work. We plan each stage so every layer is installed under the conditions specified for the system.
What is the service life of the installed system?
The correctly installed coating system has a designed service life of 10 years, providing long-term protection against moisture.
Do you renovate only the balcony floor?
Where required, we also repair the slab edge, reinforcement, façade junctions and damaged concrete-façade details. The final scope is defined during the site inspection.
Let us discuss the project
Request a proposal for your building.
Describe the building and visible damage. To prepare a proposal, we will clarify the scope and arrange a site inspection if required. The schedule depends on the extent of damage, technical curing intervals and weather.
A specialist’s site visit and initial inspection are free of charge.