« Devis clair, sans surprise, primes comprises. Un seul interlocuteur du début à la fin. Je recommande sans hésiter pour le photovoltaïque. »
Pierre M.Tournai
Service · contract
Maintenance contract for solar panels
Your panels produce silently — and a fault is just as silent. A maintenance contract combines an annual visit with remote monitoring: we watch your production continuously, alert you at the slightest drop and step in as a priority. Your output stays protected, year after year.
from €12/month Essential plan
Monitoring tracked production watched remotely
Priority repairs priority call-out in case of a fault
Production watchedalert in case of a drop
Output guaranteedtracked and recorded every year
What the contract covers
Everything your maintenance contract includes
A contract is more than just a visit: it is continuous monitoring of your production, backed by an annual on-site check and priority access to repairs.
Annual on-site visit
Full inspection once a year: panels, fixings, wiring, inverter and protection box. The report records the state of the installation and preserves your warranties.
Remote production tracking
Your production is read and analysed remotely via the monitoring portal. We compare actual against expected, month after month, with no call-out.
Alert in case of underproduction
As soon as a string or an inverter drops, the system detects it and triggers an alert. You no longer lose weeks of production without knowing.
Periodic cleaning
Cleaning of the modules with demineralised water depending on soiling (dust, pollen, droppings, moss). Clean panels mean up to several percent of output recovered.
Priority call-out
In case of a fault, customers under contract move to the front of the queue. We schedule the repair as a priority to limit the days of production lost.
Preferential rate on parts
Inverter, optimisers, connectors or protections: parts and labour are billed at a preferential rate for subscribers.
How it works
From subscription to the production review
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Subscription
You choose your plan; we note the brand of your panels and your inverter, then activate the tracking.
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Monitoring setup
Your production is connected to the monitoring portal. We watch it continuously and alert you at the slightest deviation.
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Annual visit
Once a year, a technician inspects and cleans the installation on site, checks the connections and the protections.
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Production review
Each year, a review compares your actual production against the target and lists the points to watch for the following year.
from €12 per month, Essential plan
24/7 production monitoring
−20% of output possible without monitoring
100% technicians based in Belgium
With or without a contract?
A PV fault often goes unnoticed
Without monitoring, a drop in production is invisible: no noise, no alarm, just an electricity bill creeping back up. An inverter dropping out can last months before it is noticed — that is a lot of kilowatt-hours lost. The contract closes that blind spot.
- With a contract: underproduction detected in a few days, not a few months
- With a contract: annual visit, priority repairs and a preferential rate on parts
- Without a contract: a fault often spotted too late, on the year-end settlement bill
Photo — production curve on the monitoring portal, with a drop flagged
Not sure your panels are producing at full capacity?
The contract adds continuous monitoring to your installation. We detect drops before they weigh on your bill.
Frequently asked questions
Photovoltaic maintenance contract
What is the commitment and how do I cancel?
The contract is annual and renewable. You can cancel it at the end of the term with a short notice period, with no hidden fees. No penalty is due beyond the current year: we keep our customers through service, not through obligation.
Does the monitoring really detect faults?
Yes. The tracking constantly compares your actual production against the production expected given the sunshine and your installation. An inverter at a standstill, a disconnected string or a degraded panel translates into a deviation that triggers an alert — often before you even notice anything.
My installation was not fitted by you: am I eligible?
Yes. The contract covers all panel and inverter brands, whatever the original installer. A first visit establishes a state of play, then the tracking starts as normal.
What exactly does the contract cover?
The annual on-site visit, remote production tracking with alerts, periodic cleaning of the modules, priority call-out in case of a fault and a preferential rate on parts and labour. Any replacement parts remain billed, but at the subscriber rate.
Our plans
Three maintenance contract plans
2026 pricing — per month, no hidden fees, annual or monthly debit as you prefer
| Service | Range | Typical lead time |
|---|---|---|
| Essential — monitoring & alerts | from €12/month | 1-year commitment |
| Comfort — monitoring + annual visit | from €18/month | 1-year commitment |
| Serenity — all inclusive + priority repairs | from €26/month | 1-year commitment |
On renovation (home over 10 years old), 6% VAT applies to the labour related to maintenance and repairs.
Go further
Solar panels — go further
Customer reviews
They chose wendows
5.0/5 · 1verified reviews
Ready to protect your production?
Tell us the brand of your panels and your inverter: we offer you the right plan and its price, with no quote commitment.
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