Choosing the right installer changes everything over 25 years of production. In Namur (5000) and across the wider area, Wendows works as a RESCert-certified installer, with its own in-house technicians — no chain of subcontracting. Free solar assessment within 48h, written guarantees and after-sales support reachable throughout the Meuse valley.
In Namur, there’s no shortage of solar offers : national brands, door-to-door sellers, self-install kits. The real question isn’t today’s price, but who fits it, who certifies it and who will still be there in five years. Wendows is a local installer : our technicians are in-house, trained and insured, and the same team follows you from the assessment to the commissioning.
Our RESCert certification (the benchmark qualification for solar in Belgium) conditions the validity of your installation and your guarantees. We work with equipment under long-term warranty, declare your installation by the book to the grid operator and stay reachable : a Namur installer, not a distant call centre.
Choosing your installer: our criteriaComparing our local pages too ? See our solar panels in Namur offer for the technical detail of the installation, or our solar panel installer in Liège page if your project is in the Liège region. The same demand for a certified installer everywhere in Wallonia.
In Wallonia, certain subsidies and the validity of your installation depend on using a certified installer. Here’s what our RESCert status and our written guarantees change in practice for you.
Our certification guarantees an installation to standard and a proper declaration to the grid operator : the condition for your installation to be valid and connected with peace of mind.
Ten-year structural guarantee on the installation, manufacturer warranties on the panels and the inverter, liability insurance : everything is handed over in writing, where self-installation leaves you alone facing the slightest fault.
For a home over 10 years old, a professional installer applies VAT at 6% on supply and installation — an advantage that buying the equipment alone does not allow.
The detail of the costs, the guarantees and the profitability of an installation fitted by a professional is on our solar panel price & profitability page. We cost everything, guarantees included, before any signature.
A few Namur installations carried out by our own certified technicians, from the assessment to after-sales. None was subcontracted : the same team fitted, connected and commissioned them.
Installation fitted and declared by our RESCert team, equipment and ten-year guarantees handed over in writing. The client reassured by a single point of contact from the assessment to the commissioning.
Voir le chantier →The previous fitter had vanished with no after-sales support. We audited, secured the installation and took over the maintenance with written guarantees. A textbook case of the low-cost risk.
Voir le chantier →A major project on a farm building handled without subcontracting, micro-inverters for the shading. Production monitoring and local after-sales support provided by our Namur technicians.
Voir le chantier →5.0/5 · 1verified reviews
« Devis clair, sans surprise, primes comprises. Un seul interlocuteur du début à la fin. Je recommande sans hésiter pour le photovoltaïque. »
Beyond the equipment, it’s the certified installation and the after-sales support that make the difference over time. Here are the ranges we install and guarantee in Namur :
High-efficiency modules fitted by our certified technicians, with manufacturer warranties and a ten-year installation guarantee. The equipment is selected to suit your roof, not a margin.
Discover the panels →String inverters or micro-inverters sized and connected by the book. A key part of after-sales : we handle the monitoring and the replacement under warranty.
See the inverters →Batteries installed and commissioned by the same team, with written guarantees. Pairing mastered by a certified installer, not an improvised set-up.
Explore the batteries →Check three things before you sign : the RESCert certification (compulsory for solar in Belgium), who will actually do the installation (in-house team or subcontractors), and the written guarantees — equipment, inverter, ten-year installation guarantee and liability insurance. Be wary of very low quotes with no detail on life after the install. Wendows gives you its certification and all its guarantees as soon as you get the quote.
RESCert is the benchmark qualification for installers of solar systems in Belgium. It attests that the installer is trained and authorised to fit by the book. Without valid RESCert, the compliance of your installation and certain guarantees can be called into question. We are a RESCert-certified installer and the number appears on our documents.
Beyond the manufacturer warranties on the panels and the inverter, a professional installer covers the installation with a ten-year structural guarantee and holds liability insurance. Everything is handed over in writing. That’s exactly what’s missing with self-installation or a low-cost salesperson who can disappear once the job is done.
No. Our panels are fitted by our own in-house technicians, trained and insured. The same Namur team carries out the assessment, the installation, the connection, the commissioning and the after-sales support. You keep a single point of contact from start to finish, with no cascade of subcontractors.
Our after-sales support is local : we’re based in the Namur region and stay reachable after the install. Production monitoring, checks, replacement of an inverter under guarantee or maintenance — it’s the same team that intervenes. We even take over installations fitted by a failed installer, with an audit and written guarantees to back it up.
Tell us your address and your project : our Namur team calls you back, schedules the free assessment and gives you a detailed quote with certification and written guarantees.