Premiummulti-brand installer

Every HVAC and sanitary service under one roof

From heat pumps to boiler-room renovation, from ventilation to leak detection — we deliver tailored, high-quality installations from analysis to maintenance. One contractor, one warranty, more than 30 years of experience.

Free on-site visit +32 15 62 70 80

Our services

Pick the domain that fits your project — each one has its own page with technical details, subsidies and examples.

Heat pumps

Air-to-water, water-to-water or hybrid — we size and install the right heat pump for your home, with subsidy guidance.

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Boilers

Gas, oil and hybrid boilers from Buderus, Bosch and Vaillant. Replacement in a single day.

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Ventilation

System C or System D with heat recovery — healthy indoor air and energy savings at the same time.

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Boiler-room renovation

Collective boiler-room for co-ownerships or apartment buildings — phased execution, proposal ready for the general assembly.

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Leak detection

Water, heating, flat roofs, sewage, gas, swimming pools — pinpointed without breaking walls.

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Maintenance

Legally required check, premium OGP contract with priority response — all brands welcome.

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Water analysis (Solucalc)

Analysis of water in your heating circuit — prevent corrosion, scale build-up and efficiency loss.

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Subsidy calculator

Calculate your subsidies for heat pumps, insulation, ventilation and more in 2 minutes — updated for 2025-2026.

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Why Ecowatt NV

More than 30 years of HVAC and sanitary experience — for homeowners and co-ownerships in Brussels, Mechelen and Leuven.

One contractor

From analysis through installation to maintenance and repair — you have one contact point for every discipline.

Premium brands

Heat pump: Buderus, Bosch, Vaillant, Thermia, Atlantic, Panasonic. Boiler: Buderus, Bosch, Vaillant. Water softener: Solucalc, Vercalo.

Subsidies included

We prepare your subsidy applications — from Mijn VerbouwPremie to Brussels and Walloon regional grants.

Ready to start your project?

Free on-site visit within 7 days. No obligation.

Book free visit +32 15 62 70 80