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Together for the energy transition.
Behind every building that runs smoothly, there are teams mastering what goes unseen.
Key Figures & Partners
There's More to CTSM
2008
Year founded
25
Employees
20+
Projects in 2025
100K – 2M€
Project value
Our expertises
Buildings, from the inside out. From the boiler plant to the terminal unit.
HVAC systems leave no room for approximation. Neither do we. Here, technical excellence isn’t a selling point—it’s the standard.
Complete boiler plants, energy transfer substations, heat pumps, biomass systems, and district heating networks: tailored, innovative, and high-performance solutions designed to meet every energy requirement.
We design and install complete boiler plants (natural gas, heat pumps, biomass, and hybrid systems) with integrated electrical systems and advanced controls. Our high-performance energy transfer substations, optimized heat distribution networks, and terminal units—including radiators, underfloor heating, and radiant ceilings—deliver reliable, efficient, and long-lasting performance. Backed by extensive expertise in district heating networks, our team ensures durable, high-quality installations for every project.
Chilled water systems, split systems, and refrigeration solutions: tailored, high-performance technologies designed for everything from office buildings to cold storage facilities, ensuring optimal comfort and precise temperature control.
We deliver high-performance air conditioning solutions for offices, retail spaces, public buildings, and residential developments. Our expertise covers chilled water production, air and water distribution systems, and terminal units, ensuring reliable, energy-efficient, and high-performing installations for every project.
Air handling units, mechanical ventilation systems, and ductwork: tailored solutions for commercial, public, and residential buildings, delivering superior indoor air quality and optimal energy performance.
We design and install ventilation systems for commercial buildings and public facilities, managing every stage of the project—from the initial assessment to regulatory compliance. Our solutions create healthy, safe, and energy-efficient indoor environments while ensuring reliable, long-term performance.
Hot water, cold water, potable water, natural gas, refrigerants, vacuum, and compressed air: we design and install piping systems for all types of fluids, with pipe sizes ranging from DN15 to DN500. Our in-house certified welders deliver exceptional workmanship, ensuring the highest standards of quality, safety, and reliability.
We provide multi-service piping solutions in HDPE, steel, PEX, PVC, and fire protection piping for heating, potable water, compressed air, vacuum, chilled water, and drainage systems. Every installation benefits from the expertise of our in-house qualified welders, delivering durable, high-performance piping networks built to last.
Our projects
Behind every photo, an installation that stands the test of time
Heating
Watermael-Boitsfort, Brussels
Public
La Sapinière School (Les Mésanges) – Complete energy renovation
CTSM is carrying out the complete energy renovation of La Sapinière School (Les Mésanges) in Watermael-Boitsfort, integr...
Ventilation
Drogenbos
Private & Commercial
Semlex Project – Office Building in Drogenbos
CTSM is delivering a 100% fossil fuel-free HVAC installation for Semlex's new office building in Drogenbos. The project...
Sanitary & Piping
Ventilation
Fleurus
Public
La Ferme de Martinrou – Theatre HVAC Renovation
HVAC renovation of a theatre in Fleurus, including heating, ventilation, air conditioning, and solar panels, to provide...
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HeatingWatermael-Boitsfort, BrusselsPublicLa Sapinière School (Les Mésanges) – Complete energy renovation
CTSM is carrying out the complete energy renovation of La Sapinière School (Les Mésanges) in Watermael-Boitsfort, integr...
-
VentilationDrogenbosPrivate & CommercialSemlex Project – Office Building in Drogenbos
CTSM is delivering a 100% fossil fuel-free HVAC installation for Semlex's new office building in Drogenbos. The project...
-
Sanitary & Piping VentilationFleurusPublicLa Ferme de Martinrou – Theatre HVAC Renovation
HVAC renovation of a theatre in Fleurus, including heating, ventilation, air conditioning, and solar panels, to provide...
About
Together, we build the future of energy renovation.
Founded in 2008 and part of the Bloron Group, CTSM is a Walloon company specializing in building services engineering: heating, ventilation, air conditioning, plumbing, and piping.
Based in Mont-Saint-Guibert, our team of 25 employees delivers public and private sector projects across Walloon Brabant and beyond—from boiler plants and district heating networks to new-build projects and long-term maintenance services.
Since 2024, CTSM has been led by a management team combining extensive technical expertise in HVAC and district heating networks with financial experience in the energy sector. This combination is designed to grow the company while preserving what makes it strong: skilled teams, a commitment to quality execution, and reliable installations built to last.
Trust, solidarity, and excellence. Three values that guide every project, every site, and every partnership.
Member of the Bloron Group
The entire industry, one clear direction.
CTSM is part of the Bloron Group, a winner of the Réseau Entreprendre award. Its ambition is to become a leading player in energy renovation across Wallonia by covering the entire value chain of the sector.
CTSM contributes its expertise in HVAC, plumbing, and piping systems.
A well-designed installation starts here. Let's discuss it.
Design study, quotation, or technical advice: we’ll get back to you quickly.
