Concrete repairs

We take things very seriously here: concrete repairs of the highest standard

Concrete is an outstanding building material. But it is also susceptible to the ravages of time and reinforced concrete structures will – depending on environmental influence – need to be repaired after the first life phase. Working with great care is essential as concrete repairs always require intervention in the structure's statics. Furthermore, the aesthetic appeal of fairfaced concrete on façades also needs to be reinstated once repairs have been carried out. Demands here can be very high, especially in connection with protected façades.

Our long-standing experience enables us to meet even the highest requirements and to demonstrate our high level of skill as master craftsmen time and again.  

Main contact

Weiss+Appetito AG
Reconstructions of buildings
Giacomettistrasse 1
3006 Berne

T +41 31 985 23 23
F +41 31 985 23 20 Sites Building reconstruction Write to us


Learn more about concrete repairs


Thorough to the core: sound concrete repairs

We carry out concrete repairs to continuously maintain the value of buildings and civil engineering works. In contrast to a purely cosmetic renovation, concrete repairs also eliminate the cause of the damage and thoroughly restore the basic fabric of the structure. When reconstruction is complete, we then take care of surface protection and will be pleased to take your requirements concerning the appearance into consideration.

Correct joints: decisive

Concrete members are often separated by joints. Their purpose is to absorb the movements of a building and they need to be both elastic and watertight. This is why these elements require routine maintenance.

What the concrete repair division can do for you

Realkalisation and desalination

We use the methods of re-alkalisation and desalination to sustainably restore reinforced concrete.  This complex electrochemical process puts a sustainable, full-surface stop to corrosion. The protective layer around the reinforcing steel is restored and the environment around the steel significantly improved; either by adding alkalis or removing salts.

Further benefits
  • Sustainable corrosion stop
  • No concrete abrasion (statics)
  • Maintenance of the concrete's appearance
  • Low noise emissions
  • Outstanding ecological balance sheet
Our areas of application
  • Exposed concrete façades
  • School complexes
  • Industrial buildings, power plants and clarification plants
  • Bridges, underpassages an tunnels
  • Balconies and terraces
  • Basements and surfaces structures


  • Reconstruction of buildings
    MFR balcony reconstruction - Biel Mühlfeldallee 4

    Project description

    • High-pressure cleaning of the façade
    • Repair balcony coverings
    • Sealing work on the façade
    • Waterproofing
    • Coating on balcony floors


    Year of execution 2014Z

    Total construction sum  ...

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  • Reconstruction of buildings
    MFR balconies - Locarno Via ai Monti 110

    Project description

    • Restructuring work on 24 balconies (190m2)
    • Demolition of old incline coating
    • Install new coating on balconies
    • Liquid film waterproofing
    • Concrete repairs on balustrades
    • Application of a...
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  • Reconstruction of buildings
    ARA - Jungholz Uster


    • Korrodierte Armierungseisen freilegen
      und mit Korrosionsschutz behandeln
    • maschinelles Reprofilieren der Deckenuntersicht

    Gesamtsumme:  CHF 35'000.00
    Ausführung:       2016 

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  • Reconstruction of buildings
    ARA Limmattal - Reppischbrücke und Klärbecken


    • Brüstungen der Brücke spachteln
    • Betoninstandsetzung+ Kittfugen erstellen
    • Dilatationsfugen neu mit Combiflex abdichten
    • Injektionen

    Ausführung:             2016
    Gesamtsumme:       CHF...

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  • Reconstruction of buildings
    Loveresse sewage treatment plant

    Weiss+Appetito AG keeps the Loveresse sewage treatment plant in good working order. The Loveresse sewage treatment plant has been operating since the 1980s. In recent years, the fabric of the building...

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  • Reconstruction of buildings
    External stairs – Hasenberg Kerzers

    Project description

    • Incline correction
    • Coating
    • Sealing

    Implementation               2014
    Total construction sum    CHF 27,000

    Read more
  • Reconstruction of buildings
    Swimming pool renovation in Grenchen

    Project description

    • The grandstand at Grenchen swimming pool was built nearly 60 years ago.
    • It consists of cantilevered supports made of site concrete and prefab concrete elements laid on top.
    • The...
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  • Reconstruction of buildings
    Biel Sahligut – school renovation – assembly hall

    Project description

    • Façade cleaning
    • Concrete renovation
    • Renovation of exposed aggregate concrete
    • Filling
    • Surface protection with OS 4 mineral products
    • Water-repellent treatment

    Implementation:           ...

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  • Reconstruction of buildings
    Underground garage, Coop Bern Kasparstrasse 7

    Project description

    • Demolition work and dismantling
    • Concrete removal via high-pressure water jetting
    • Shear and puncture reinforcements
    • Reinforcement with prestressed CFRP strips
    • Concrete repairs
    • Applicati...
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  • Reconstruction of buildings
    Adliswil Ruetistrasse 60 – underground garage renovation

    Project description

    • Concrete renovation
    • Core drilling
    • Puncture reinforcement
    • Master building work

    Implementation                2016
    Total construction sum    CHF 76,000

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  • Reconstruction of buildings
    Riedtwil Bridge SBB

    Project description 

    • Demolition work
    • Ultra-high-pressure water jetting                       
    • Conventional renovation work     
    • Shuttering, reinforcing, concreting
    • Surface protection
    • Civil engineering...
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  • Reconstruction of buildings
    Lengnau Reservoir – internal water chamber coating

    Project description

    • Concrete removal with a high-pressure water lance
    • Concrete renovation
    • Spray application of a mineral coating

    Implementation 2013/2014
    Total construction sum CHF 202,000

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  • Reconstruction of buildings
    Tall chimney renovation – Cornaux – Juracime SA

    Project description

    • Cleaning
    • Substrate preparation by means of ultra-high-pressure water jet
    • Demolition/reconstruction of 5 m of fireclay brickwork
    • Stainless steel cover
    • Filling work
    • Surface protection


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