Wendows installs air-to-water and geothermal heat pumps across all five Walloon provinces — Liège, Namur, Hainaut, Walloon Brabant and Luxembourg. In rural areas with no mains gas just as much as in urban centres, the heat pump replaces your ageing oil or gas boiler: free thermal assessment scheduled within 48h, Walloon Prime Habitation grant up to €6 000 handled and deducted, 6 % VAT applied directly on your quote.
We work throughout the whole of Wallonia with teams of certified technicians who know the diversity of Walloon housing stock: from the high-ceilinged townhouses of the Liège and Namur conurbations to the stone farmhouses of the Ardennes and the Gaume, by way of the four-fronted detached houses in the residential estates of Walloon Brabant and Hainaut, where oil heating is still very common in the absence of mains gas.
The thermal assessment is carried out at your home, with no call-out charge, scheduled within 48 hours; the same team then follows the entire project: sizing, removal of the old boiler, installation of the heat pump and commissioning. We put together your Walloon Prime Habitation grant file and deduct it from your bill — you pay nothing up front.
Walloon housing and its heatingWe cover the whole of Wallonia and work in particular in Liège, Marche-en-Famenne, Spa, Verviers and the surrounding municipalities — same team, same lead times in every Walloon province.
Wallonia is one of the most generous regions in Europe for installing a heat pump. Here are the three levers we activate and deduct directly from your bill, with nothing for you to pay up front.
For an air-to-water heat pump replacing an oil or gas boiler, the Walloon Prime Habitation grant can reach €4 000, adjusted according to the household income brackets. A home audit may be required; we check your eligibility and put together the entire file.
For a geothermal heat pump (ground-to-water or water-to-water), the Walloon grant can go up to €6 000. The ideal solution for houses with a large garden or a plot suitable for drilling: very high COP and almost complete independence from outdoor temperatures.
For any home over 10 years old, VAT drops from 21 % to 6 % on the supply and installation of your heat pump. This reduced rate is applied directly on your Wendows quote: nothing for you to arrange.
The full breakdown of amounts, conditions and income brackets is on our heat pump price & grants page. Wendows handles the entire file: you pay nothing up front and fill in no forms.
A few recent installations representative of Walloon housing. Every project is followed by a local team, from the thermal assessment to final commissioning.
High-ceilinged Liège townhouse: removal of the oil boiler and tank, installation of an air-to-water heat pump with low-temperature radiators. Heating bill sharply reduced, Prime Habitation grant deducted from the bill.
Voir le chantier →Four-fronted detached house in a rural Ardennes area, with no mains gas: oil replaced by an air-to-water heat pump paired with the existing underfloor heating. Tank removed, even comfort and Prime Habitation grant activated.
Voir le chantier →Namur villa with a plot suitable for geothermal probes: installation of a ground-to-water heat pump with a very high COP, Walloon geothermal grant up to €6 000 deducted. Almost complete independence from outdoor temperatures.
Voir le chantier →5.0/5 · 3verified reviews
« Châssis, panneaux et pompe à chaleur en une seule fois : on a eu un seul devis, un seul planning et zéro paperasse pour les primes. Le résultat est impeccable et notre facture d'énergie a chuté. On ne pensait pas que ce serait aussi simple. »
« Passage du mazout à une pompe à chaleur air-eau. Chantier propre, anciens radiateurs conservés. La maison est mieux chauffée pour bien moins cher. »
« PAC air-air réversible installée avant l'été. Confort été comme hiver, et le SAV répond vite. Très satisfait du suivi. »
From air-to-water to replace an oil boiler to geothermal for a villa with a garden, we tailor the solution to the building and the budget. Discover each range:
The most common solution in Wallonia for replacing an oil or gas boiler: connection to low-temperature radiators or underfloor heating, domestic hot water production, Prime Habitation grant up to €4 000.
Discover air-to-water →For houses with a garden or a plot suitable for probes or collectors: very high COP, independence from outdoor temperatures and a Walloon Prime Habitation grant up to €6 000.
Explore geothermal →Ideal for flats and homes where the emitters cannot be changed: room-by-room heating and cooling, quick installation with no major works.
See air-to-air →The Walloon Prime Habitation grant can reach €4 000 for an air-to-water heat pump and up to €6 000 for a geothermal installation, depending on income brackets and the type of works. VAT is also reduced to 6 % for any home over ten years old. Wendows handles the entire file and deducts the grant from your bill: you pay nothing up front.
Yes, and it is in fact the most common case in rural Walloon areas. An air-to-water heat pump is a perfect replacement for an oil boiler: it connects to existing underfloor heating or low-temperature radiators, removes the oil tank and sharply reduces the bill. The free at-home thermal assessment checks the compatibility of your emitters and sizes the installation correctly.
Yes. Modern heat pumps stay efficient even at clearly sub-zero temperatures, such as during Ardennes winters. Correct sizing, validated by our thermal assessment, guarantees comfort in all conditions; a built-in electric back-up can cover the rarest cold peaks.
The Prime Habitation grant is a Walloon regional support scheme intended to encourage the energy renovation of homes. For a heat pump, its amount depends on the type of installation (air-to-water or geothermal) and the household income (brackets set by Wallonia). A home audit may be required depending on the file. Wendows checks your eligibility, compiles the full file and deducts the grant from your final bill.
Yes, Wendows covers the five Walloon provinces: Liège, Namur, Hainaut, Walloon Brabant and Luxembourg. We work both in the major conurbations (Liège, Namur, Charleroi, Mons) and in rural areas (Ardennes, Famenne, Gaume). The thermal assessment is scheduled within 48h whatever your municipality.
Yes, completely: the visit to your home, the full thermal assessment (survey of the emitters, heat-loss calculation, sizing of the heat pump) and the priced quote are free of charge and with no obligation, whatever your Walloon province. You pay nothing until you have approved your project.
Tell us your municipality and your project: a local team calls you back, schedules the free thermal assessment and handles your Walloon Prime Habitation grant from A to Z.