Solar panel maintenance

How to choose a solar panel cleaning company in Cyprus

What can actually be checked about a solar panel cleaning company in Cyprus, what to ask before booking, and what belongs in a written cleaning quote.

8 min read

ByMaria Constantinou· Editor, solar and energy

Maria runs the data collection behind our solar pages. She checks installer registrations against the electrical contractor register, records quoted system prices, and tracks changes to the grant schemes as they are published.

Published

Panel cleaning is the easiest solar service to sell and the easiest to do badly, because the customer cannot see the difference between a good job and a fast one from the ground. So choose on what can be checked rather than on what is claimed: that the company legally exists, that it carries cover, that it will tell you in writing how it gets onto your roof and what it puts on your glass, and that it hands you a before-and-after generation figure rather than a photograph of clean panels.

What can actually be verified

Three things about any cleaning company in Cyprus can be confirmed by you, from public records, before you speak to them again.

That the business is registered. The Registrar of Companies is public. You get the legal name, the registration number, the incorporation date and whether the company is in good standing. This does not tell you the cleaning will be good. It tells you there is a real entity behind the invoice if your glass is scratched.

That public liability cover is in force. Ask for the certificate, not a statement, and read the dates on it. A policy that expired on 31/03/2026 is not cover in July. Cleaning is roof work above someone's living room, and the cover that matters is the one valid on the day they are standing up there.

That they work on solar rather than on windows. A window round that has added panels is a different proposition from a company whose equipment, water treatment and insurance were bought for solar. Ask what share of their work is panels.

Registrations that matter

Cleaning itself is not a licensed activity in Cyprus. Nobody needs a permit to wash glass, and any company implying otherwise is describing something that does not exist. What matters is the line between cleaning and everything adjacent to it.

The moment a visit involves anything electrical — reseating a connector, investigating why a string has dropped out, touching an isolator or opening the inverter — it stops being cleaning. That work belongs to a registered electrical contractor, and the reason is not bureaucratic: the DC side of an array remains live whenever the sun is on it, and it does not switch off because the inverter is off. A cleaner who offers to "have a quick look at the wiring" is offering you something they should not.

Companies that also carry out maintenance should be able to name the registered electrician who signs off their electrical work and give you the registration details. ETEK holds the register for engineers, and the electricity authority is the body a grid-connected system answers to for anything touching the connection. Neither register lists cleaners, and that is the point: the registration you are checking belongs to whoever deals with faults, not to the person with the brush.

Check what your installation warranty says about cleaning before you book anyone. Some make approved-method cleaning a condition, and an unrecorded visit by an unrecorded contractor is an argument you do not want in year six.

Questions to ask

  1. How do you get onto the roof, and who provides the access?

    Ladder, tower, or a telescopic pole from ground level. Pole systems are common in Cyprus and are often the right answer, particularly on the hillside plots around Peyia where steep access roads limit what vehicle can reach the property at all. What you need is the method named in advance, not discovered on the day.

  2. What water and what brush?

    Deionised or softened water with a soft brush. Hard tap water dries and leaves the mineral deposit you were paying to remove. Abrasive pads scratch the anti-reflective coating, and that damage is permanent. Detergent left on the glass attracts dust faster than no cleaning at all.

  3. Do you use high pressure?

    Not at the frame seals and not at the junction box. Pressure that is fine on a driveway drives water past seals that were designed for rain, and the failure appears months later as moisture inside a panel.

  4. What do you do about hot glass?

    Cold water on glass at midday in a Cypriot July is a thermal shock risk. Early morning is the standard answer. A company that will happily clean at two in the afternoon in August is telling you something.

  5. What do you record?

    A generation reading before and after, panel count, method used, date, and anything noticed on the roof — a lifted clamp, a chafed cable, a shading branch that has grown. That record is the actual product.

  6. How often do you recommend coming back, and why?

    The right answer is a range with a reason attached — coastal exposure, nearby construction, tree cover, the dust seasons. A flat "every three months" for every property on the island is a subscription, not an assessment.

What a good quote looks like

Those figures are read at page load rather than typed here, so they do not go stale. What you are checking in a written quote is the shape of it, not the total.

Cleaning is usually priced per panel or per visit, with a minimum charge. Both are reasonable; what is not reasonable is a per-panel price without a stated minimum, because the minimum is what you will actually pay on a small installation. Make sure the quote states the panel count it is based on, since a quote given over the phone for "a typical house" is a guess.

A quote you can compare should also carry the access method and who supplies the equipment, the water treatment used, whether a generation reading before and after is included, what happens if a fault is found — inspect and report, not repair, unless a registered electrician is attending — travel to the property where distance is a factor, and VAT stated rather than implied.

Bundling matters too: combining cleaning with an annual inspection costs less than two attendances and puts eyes on the mounting hardware at the same time. Our price index pages carry the maintenance ranges by district, and the area pages show which companies cover each one.

Warning signs

A door-knock offer. Companies that appear on the street after a dusty week and quote for immediate work are selling urgency. Take the details and check the registration before agreeing to anything.

"Your output has dropped, we can tell from here." Nobody can see your generation figures from the road. Soiling losses accumulate gradually between rain events, which is precisely why they need a meter reading to demonstrate rather than an eye.

A promised percentage gain. Any specific improvement quoted before the panels have been looked at is invented. What the clean recovers depends on how dirty the array is now, which is measurable only by reading the meter either side.

Pressure washing as a selling point. It is faster, it is cheaper for them, and it is the main cause of seal damage on panels in this climate.

No written method. If a company will not put the water, the brush and the access method in writing, there is a reason.

Cash only, no invoice. No paper trail if something is damaged, and both your insurer and your installation warranty work on paper.

Electrical work offered in the same breath. Cleaning and electrical repair are separate trades with separate liabilities.

Common questions

How often should panels be cleaned in Cyprus?

It depends on exposure rather than on a national rule. Directly coastal properties and anywhere near active construction need it more often than an inland roof in a quiet street. The way to settle it is to take a generation reading before and after a clean and see how much the clean actually recovered.

Does rain not clean them?

It rinses loose dust and it does very little to salt film or cement dust. In the long dry stretch of a Cypriot summer there is nothing to rely on at all, which is why soiling here behaves differently from soiling in northern Europe.

Can I clean the panels myself?

On a single-storey flat roof with safe access, yes — soft brush, softened water, early morning, no pressure washer, no abrasive, nothing standing on the panels. On a pitched roof or a communal roof, there is a fall risk underneath the saving.

Is the cheapest quote a problem?

Not by itself. Compare what the quotes include before comparing totals — access method, water treatment, whether a reading is taken either side.

Do you have reviews or ratings of cleaning companies?

No. This site records verified registrations and the date each was checked, and publishes price ranges from its own records. It does not publish ratings, testimonials or reviews of any company.

What should I get after the visit?

An invoice, the panel count cleaned, the method used, the date, generation readings either side, and a note of anything seen on the roof. Keep them with the installation paperwork.

Solar maintenance companies by district

8 companies covering this area.

  • Limassol Electrician 24/7

    Potamos Germasogeias, Limassol

    Limassol Electrician 24/7 is an electrical contractor in Potamos Germasogeias, in the Limassol district. Recorded services include fault finding, consumer units, rewiring.

    • Fault finding
    • Consumer units
    • Rewiring
    • Certification
  • Vascon Solar Experts LTD

    Pera Chorio, Nicosia

    Vascon Solar Experts LTD is an energy supplier in Pera Chorio, in the Nicosia district.

  • Kyriakos Louka & Yioi LTD (Office) is an electrical contractor in the Nicosia district. Recorded services include fault finding, consumer units, rewiring.

    • Fault finding
    • Consumer units
    • Rewiring
    • Certification
  • Bioenergy

    Polis, Paphos

    1

    Bioenergy is a company in Polis, in the Paphos district.

  • ΦΑΝΟΣ ΚΑΡΑΝΤΩΝΗΣ is listed on the Cyprus Energy Service register of certified solar PV installers under registration Γ01/2017, valid to 24/5/2029. The entry covers ΠΑΛΑΙΟΜΕΤΟΧΟ, the nicosia district. Details come from the public register and have not been verified with the business.

  • ΧΑΡΑΛΑΜΠΟΣ ΠΑΝΑΡΗΣ is listed on the Cyprus Energy Service register of certified solar PV installers under registration Γ03/2017, valid to 5/8/2029. The entry covers ΑΓΙΟΣ ΔΟΜΕΤΙΟΣ, the nicosia district. Details come from the public register and have not been verified with the business.

  • ΝΕΟΦΥΤΟΣ ΤΣΙΓΑΡΙΔΗΣ is listed on the Cyprus Energy Service register of certified solar PV installers under registration Γ05/2017, valid to 5/8/2029. The entry covers ΕΡΓΑΤΕΣ, the nicosia district. Details come from the public register and have not been verified with the business.

  • ΣΤΕΦΑΝΟΣ ΧΡΙΣΤΟΔΟΥΛΟΥ is listed on the Cyprus Energy Service register of certified solar PV installers under registration Γ06/2017, valid to 1/12/2029. The entry covers ΛΥΘΡΟΔΟΝΤΑΣ, the nicosia district. Details come from the public register and have not been verified with the business.

Sources

  1. Department of Registrar of Companies and Intellectual Property — retrieved 2026-07-24
  2. Electricity Authority of Cyprus — connection and metering — retrieved 2026-07-24
  3. ETEK — Cyprus Scientific and Technical Chamber — retrieved 2026-07-24

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