• Your independent energy expert for energy analysis | Energy consulting Surveyor of Excavation | certification Construction site supervision energy coaching
    • A4_convex_icon_analyse
      Energy analysis
    • A4_convex_icon_claims
      Surveys - Experts
    • A4_convex_icon_beratung
      Energy consulting
    • A4_convex_icon_schulung
      energy coaching
    • A4_convex_icon_building
      Construction site management & construction site management
    • A4_convex_icon_certificate
      certification
  • Our measuring instruments

    • Wöhler BC21 - BlowerDoor meter for construction volume <2.000 m3 ( www.woehler.de )
    • Retrotec QMG Triple Fan Blower Door - BlowerDoor meter for construction volume 2,000 m3 <40,000 m3 ( www.retrotec.com )
    • FLIR ThermaCAM B-335 - thermographic camera 76,800 pixels - Accuracy 0.05 ° C / pixel ( www.flir.com )
    • Wöhler CDL 210 data logger - Problem Analysis (discomfort, moisture / mold / concentration problems) ( www.woehler.de )
    • Wöhler HBF 420 wood and building moisture meter ( www.woehler.de )
    • testo 435-4 - Multifunction Meter - U-value measurement - anemometer - CO sensor - Humidity sensor - surface temperature - Lux probe ( www.testo.de )
    • Infrared Video Thermometer PCE-IVT 1 - Dew Point ( www.warensortiment.de )

      • Experience in construction since 1998
      • Energy experts since 2007
      • Judicially sworn in construction engineer since 2009
    • To person

      SERGEFABER (Managing Director)
      Has been active in the construction industry since 1998, as well as vice president of the Association of Energy Consultants and Certifi- cates. He is also recognized as a civil engineer.
    • Certificates

      • Energy fier d'the future
      • Member of the judicially recognized surveyors for the elaboration of energy consultations and passports
      • Member of the "Jonk Handwierker"
      • Board of the Fédération des Conseillers et Certificateurs Energétiques
  • Successful renovation in 4 steps

    • They have an idea and need a first orientation aid

      � Free basic counseling
      Within the framework of a basic advisory, you will receive technical, professional and sponsor-specific information on the following topics: energy, building materials, sustainable building, respect for the architectural heritage, state and municipal subsidies for energy measures, subsidies from the services of sites and monuments nationaux.
    • You need competent partners for planning

      � Energy consulting
      In order to obtain a right to the state subsidies for measures in the energy sector, energy advice is mandatory before the work is carried out. Energy consultation includes an on-site visit and a consultation report.

      � Conception
      When compiling the renovation concept, the energy consultant, the architect and the craftsman should work hand in hand at best. If the building is under monumental protection or a subsidy from the "service of sites and monuments nationaux" is desired, this must be included. Look for sustainable building materials and a holistic concept. Depending on the measure, the client can consult an architect or go directly to a craftsman. If a building permit is required, an architect must be commissioned depending on the measure.

      � Financing
      The energy consultant, the craftsman and / or architect will draw up a global cost estimate and take account of the possible subsidies due to the planned measures.

      � Detailed planning
      Depending on the measure, an execution plan is drawn up by the architect and / or the craftsman. In the case of major reconstruction measures and if no craftsman has been commissioned, a description of the services and a careful determination of the chronological sequence by an architect is recommended. Think of the insurance companies and estimate your potential self-service right!
    • They need craftsmen to carry out the planned measures

      � Selection of craftsman and order
      If no artisan has been designed for the conceptual design, offers will be obtained from various companies. The architect, the energy consultant and / or myenergy can help with the selection of the most interesting offers and the control of the eligibility. Remember to submit your application for support to the "Service des sites et monuments nationaux" before starting the work!

      � Construction supervision
      Depending on the scope of the measures, the construction management can be undertaken by the architect, the craftsman or the owner himself. At this stage, special care must be taken to ensure a proper execution, the correctness of the materials used and the coordination of the timetable.
    • They would like to apply for state subsidies

      � The application forms for energy promotion are completed by the energy consultant, the architect and the craftsman. Remember to fill in the certificates of conformity with the tradesmen. The client submits the application to environmental management.

      � Think of the municipal subsidies and the housing subsidies of the housing construction authority!
  • Contact us

    • We will be happy to provide you with a tailor-made & free offer!


      Convex s.à rl

      Managing Director Serge Faber
      5, rue d'Eschweiler
      L-6951 Olingen
      Luxembourg

      Tel: 26 78 73 27
      Fax: 26 78 73 28
      GSM: 661 367 384
      Email: mail [at] convex [dot] lu