A few simple questions to estimate the work, check access and suggest a suitable time slot.
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Installation
How many solar panels do you have?
Start with the number of panels and your Belgian postcode.
BILLING
You are:
Selection:
You must choose “Private customer” or “Business” before continuing.
💧 Up to 40 panels, Stef Cleaning provides its own water supply.
Above 40 panels, an on-site water point or logistical approval will be required.
Condition
What do your panels look like?
Three simple cases. Additional examples are available to help distinguish R, NR and NRC.
LIGHTLY SOILED
Regular maintenance
These photos show a light film, sand or surface dust. Cleaning is generally carried out with pure water.
SOILED
Non-regular cleaning
These photos show visible deposits, accumulated marks or dirt requiring more thorough cleaning than a simple water rinse.
HEAVILY SOILED
Deep cleaning
These photos show heavy or ingrained dirt. A suitable product may be required depending on the contamination.
Provisional estimate: the price is calculated on the basis of an NR — non-regular cleaning.
Before starting the work, Stef Cleaning will check the actual condition of the panels on site.
The final price may be adjusted downwards or upwards depending on the condition found.
Required choice: select the condition of your panels or “I don’t know” before continuing.
Contamination
Have there been works nearby?
Paint, roof treatment, cement, chemicals or other splashes may require a different treatment.
Access
What is the access like?
This choice directly affects the calculation shown at the next step.
Very easy access receives a strong reduction, a flat roof a clear reduction, standard is the reference and difficult access is increased / subject to approval.
Contact details
Your contact details for the service.
These details will be included in the booking request and in the summary before payment.
Phone: Stef Cleaning will use it to contact you in case of questions, date changes,
bad weather or special service conditions.
BUSINESS ADDRESS
ALREADY ENTERED
Your estimate
Here is the estimated amount for your installation.
The calculation takes into account the number of panels, their condition and access. The detailed formula remains internal to Stef Cleaning.
ESTIMATED CLEANING PRICE
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Estimate based on the information provided. A significant difference found on site may lead to a price adjustment before the service.
Why regular maintenance is worthwhile
REGULAR MAINTENANCE
Keeping panels in R = better price
Regular cleaning limits build-up and helps prevent a move to NR or NRC.
The discount applies to cleaning; travel remains calculated according to the municipality.
No contract selected.
BOOKING
Booking deposit: 65 €
Selected distance band: 0–20 km
The deposit is determined according to the distance from Stef Cleaning’s reference area. It can never exceed the estimated intervention amount and is deducted in full from the final amount.
The price displayed when booking is an estimate based on the information supplied by the customer.
Prior approval required. Your installation includes an element that must be checked before the amount can be confirmed.
Time slot
Choose a day.
Available times adapt to the season and the condition of the panels.
Available Unavailable Your selection
MonTueWedThuFri
Choose a Monday-to-Friday date within the next 6 months.
Date subject to approval
The selected date is a preferred appointment date and must be confirmed by Stef Cleaning.
Paying the deposit does not definitively guarantee this time slot.
The date may be adjusted depending on weather, safety or service conditions.
If a change is needed, a new date will be agreed with you.
Adapted hours In summer, R remains possible over a wider time range. For NR, morning slots are preferred because products dry faster on hot panels. NRC is not offered during peak summer / high heat. Outside summer, services can be planned between 08:00 and 16:00.
Booking
Summary before payment.
Check your selections before paying the deposit.
YOUR CONFIGURATION
Maintenance contract: the option displayed above is the one actually saved.
If you changed anything that affects the price, the plan automatically returned to “No contract” so that a discount cannot remain selected unnoticed.
Booking processing: this request will be saved in the Stef Cleaning system. Until payment is confirmed by Mollie, no time slot is blocked. After payment, the time slot is held pending confirmation by Stef Cleaning.
Required only when the requested appointment falls within 14 days of booking.
After your appointment is confirmed by Stef Cleaning
Any later change of date or time must be arranged directly by phone with Stef Cleaning.