Free for Marblanc Solar Clients
One professional panel clean per year is included free for the first three years as part of our aftersales care package. Carried out by our own trained in-house staff — not subcontractors — and booked instantly through your direct WhatsApp channel.
Specialist Materials & Methods
Tap water leaves mineral deposits. Standard cleaning products damage the anti-reflective coating on panel surfaces. Our technicians arrive with professional-grade solutions that soften water before application — no residue, no surface damage, no shortcuts.
Rapid Panel Cleaning
Saharan dust, pine pollen and mud-rain cut solar production by 30% or more. We carry out professional cleans across the Costa del Sol and Costa Blanca, typically within 1-3 working days of booking.
Noticed a drop in your solar production?
Spain is one of the best places in the world for solar energy – but it’s also one of the hardest on solar panels. The Calima arrives several times a year, sweeping in from the Sahara and coating everything in a thick layer of red dust and mud. Then comes spring, when pine trees release pollen in quantities that settle across every outdoor surface. Add the fine dust that accumulates on dry days, and the occasional contribution from local birdlife, and your panels are working against a significant amount of dirt for much of the year.
By itself, that’s frustrating enough. But it’s made worse by the practical reality of cleaning solar panels on a Spanish roof. Many panels are hard to reach safely without the right equipment. And even if you can get to them, you need specialist cleaning materials that won’t damage the panel surface – along with distilled water, which won’t leave mineral residue behind. Regular window cleaning products and tap water can do more harm than good.
Thankfully, Marblanc Solar’s solar panel cleaning service is here to help – covering homes across the Costa del Sol and Costa Blanca, and free for new clients as part of our aftersales care package.
Why most solar installers leave you to figure this out yourself
Most solar installers will set up your system, hand over the paperwork, and leave you to manage it from there. Many homeowners aren’t even made aware that solar production can drop by 30% or more as a result of mud-rain, dust, and pollen buildup on their panels. It’s one of the most common reasons a system underperforms – and one of the easiest to fix.
Fewer still explain how panels should actually be cleaned. Regular window cleaning products can damage the anti-reflective coating on panel surfaces, reducing their efficiency over time. Tap water in many parts of Spain is hard, and when it dries it leaves a mineral residue that compounds the problem rather than solving it.
After hearing from clients about the difficulty – and in some cases the danger – of trying to clean their own panels, Marblanc Solar introduced a professional solar panel cleaning service for homeowners on the Costa del Sol and Costa Blanca. Every clean includes:
- Specialist materials – We use professional-grade chemicals to soften water before application, preventing mineral deposits and protecting panel surfaces
- Our own trained staff – Every clean is carried out by in-house Marblanc Solar technicians, not subcontractors
- Thorough, unhurried work – A proper professional clean can take up to two hours, especially for larger properties. We don’t cut corners.
This service is free for three years for every new Marblanc Solar client, included as part of our aftersales care package.
What Clients Say About Our Aftersales Care Services
Marblanc Solar is committed to delivering on its promises through our aftersales care. But don't just take our word for it.
Our Story
When Adam Millington founded Marblanc Solar out of our Marbella office in 2022, he'd already spent years working as a qualified electrician on the Costa del Sol. He'd seen first-hand what happened when solar systems were sold by people who didn't understand electricity. Undersized arrays. Incorrect inverter configurations. Customers who'd been promised 70% savings and were still opening €200 electricity bills.
The problem wasn't the technology. Solar works. The problem was the process – and the people delivering it.
Our mission
Adam realised the need to build a company where qualified professionals handle every stage. Not salespeople. Not local handymen. Not subcontractors brought in from wherever was cheapest that week. Qualified electricians and certified survey engineers – in-house, on every job.
In 2024, certified survey engineer Roman Mitchell joined as co-owner. He brought with him a rigorous approach to system design and a commitment to solar proposals that can deliver on their promises. Together, they developed the Free Solar Survey: a process that uses precision drone scans, local solar radiation data, and the world's leading solar design software to produce a system design specific to your property.
Marblanc Solar Today
By early 2025, Marblanc Solar had become the top-rated Marbella-based solar installer – over 100 Google Reviews, a 4.9/5.0 rating on Facebook, and a growing reputation across the region.
Our team’s core members include:
- Adam Millington (Co-owner) – Qualified electrician, Masters in Sustainable Electrical Energy Systems
- Roman Mitchell (Co-owner) – Certified survey engineer
- Alan Manning – Qualified electrician and survey engineer
- Miguel Angel Ruiz Zapardiel – Qualified electrician and survey engineer
- John Bradley (Site Manager) – Qualified electrician
In 2026, we expanded to the Costa Blanca with a new office in Javea, Alicante. All electrical work and system commissioning is carried out by a qualified electrician – no exceptions.
Meet Emilio Gamaza
Emilio Gamaza is an experienced solar installer with four years’ experience fitting solar panels, mounts, and solar energy systems. Emilio has been specifically trained in professional panel cleaning and carries out this service for Marblanc Solar clients across the Costa del Sol and Costa Blanca.
Specialist materials that protect your panels
Few homeowners realise that cleaning solar panels with regular tap water can cause long-term problems. Hard water leaves mineral deposits on panel surfaces as it dries, building up over time and reducing the amount of sunlight reaching the cells. Distilled water eliminates this – but sourcing and transporting it adds complexity to the job.
As part of our cleaning service, Emilio brings professional solutions that soften your water on the spot before application. No residue. No mineral buildup. A quick, efficient clean that leaves your panels performing as they should.
Aftersales Care Services
Everything to know about our solar panel cleaning services
See answers to the most common questions about our solar panel cleaning services. If you have a question that isn’t answered here, please contact us.
Will dirty panels really make a noticeable difference to my electricity bill?
Yes – significantly more than most homeowners expect. Solar panel production can drop by 30% or more due to accumulated mud-rain, dust, and pollen. On a well-sized system, that’s a substantial amount of energy – and a direct hit to the savings your installation was designed to deliver. A professional clean is one of the simplest and most cost-effective ways to make sure your system keeps performing at its best year-round.
Can’t I just clean my solar panels myself?
You can – but there are a few things to get right first. Regular window cleaning products can damage the anti-reflective coating on panel surfaces, reducing their efficiency over time. Tap water in many parts of Spain is hard and will leave mineral deposits as it dries, which compounds the dirt problem rather than solving it. You’ll also need to consider safe access to your roof and the time involved – a thorough clean on a larger property can take up to two hours. Our in-house technicians arrive with the right materials, the right equipment, and the experience to do the job properly without risking damage to your system.
How often should I have my solar panels cleaned in Spain?
In Spain, we recommend at least one professional clean per year – timed after the worst of the Calima season or spring pollen, when buildup tends to be at its heaviest. In areas particularly prone to dust, bird activity, or pine tree pollen, a second clean may be worth considering. For all Marblanc Solar clients, one free panel clean per year is included for the first three years as part of our aftersales care package. To book yours, simply message us through your direct WhatsApp channel and we’ll arrange a time.
What to expect when you get a free solar survey from Marblanc Solar
Marblanc Solar offers all interested clients a Free Solar Survey.
Once we receive your details, a qualified survey engineer from our team will arrange a home visit at a convenient time. We then follow a series of steps to design a high-quality system that delivers on its promises.
1
Book Your Free Solar Survey
A qualified electrician or survey engineer visits your property, conducts a precision drone scan of your roof, checks your intake and analyses your actual electricity usage. There's also a thorough Q&A process.
2
We Build Your Proposals
Your survey engineer models your roof geometry, shading, orientation and seasonal solar variation using the world's leading solar design software. We size the system to hit your savings targets, determine the optimal panel layout, and produce a fully itemised proposal.
3
Proposal Presentation
Your survey engineer contacts you within 48 hours for a second site visit to present the proposal. You can ask for instant adjustments on the spot – adding or removing panels, switching equipment or modelling a battery. Everything updates in real time.
4
Decide With Confidence
Take as long as you need. No pushy follow-up, no obligation to proceed. Most clients leave their presentation with two clear options and everything they need to make the right decision – you can keep the drone footage too!
Book Your Clean
Ready to restore your panels to full performance? Get in touch with the Marblanc Solar team today.
Hear From Our Clients
Marblanc Solar is the top-rated solar installer focusing on the Costa del Sol and the Costa Blanca in Spain. Hear what our clients say about working with us.
