WefaTec S.à r.l. is a young, dynamic Luxembourgish company based in Colmar-Berg, led by two complementary managers: Henning GEIMER (technical manager) and Tony SANTOS (administrative manager), who together have over 17 years of experience in plumbing, heating, and sanitary installations. Specializing in heating systems, plumbing, ventilation, air conditioning, and renewable energies, the company serves private individuals and professionals throughout the Grand Duchy. WefaTec adopts an ecological philosophy centered on the 4 elements (FIRE / WATER / EARTH / AIR) which structure its entire offering. Its slogan emphasizes well-being at home, optimal thermal comfort, and the reduction of ecological impact.
It is a craft company specializing in building techniques (heating engineer, plumber, air conditioning technician, renewable energy installer). Its areas of activity are structured around the 4 natural elements:
🔥 1. FIRE – HEATING:
New central heating installations
Underfloor heating (radiant surface heating)
Replacement of existing installations
Modernization of building technology
Heat exchangers
Boilers (gas, oil)
Maintenance and repair of central heating
Solutions for individual homes, multi-unit buildings, and industrial buildings
💧 2. WATER – PLUMBING:
New installations
Turnkey bathrooms
Water treatment (softeners)
Filtration systems
Rainwater harvesting systems (Jung, KSB)
Water pressure boosting (DAB)
Wastewater pumps
Anti-limescale softeners (Grünbeck)
🌍 3. EARTH – RENEWABLE ENERGIES:
Heat pumps (air/air, air/water, geothermal – Stiebel Eltron)
Solar thermal installations (Viessmann)
Water-fed stoves / wood-burning stoves
Log boilers (Fröling)
Pellet boilers
Geothermal energy
Solar panels
💨 4. AIR – VENTILATION:
Centralized and decentralized ventilation installations
CMV (Controlled Mechanical Ventilation)
Double-flow ventilation (Zehnder ComfoAir)
Air conditioning
Air conditioning for server rooms
Building technology modernization
Prevention of humidity problems
