Solar Panel Cleaning in Alvalade

Alvalade is greener than most of central Lisbon, and that shows up on the panels. The mature street trees along the avenues and in the courtyard gardens shed leaves into every gutter and roof valley, and in spring they throw out a fine pollen that lands on the glass and turns sticky. Add the grime off the Avenida do Brasil and the Avenida de Roma, plus pigeons on the parapets of the low brick blocks, and the modules end up carrying a mixed layer that neither wind nor a shower will clear. Most systems here sit on the flat or shallow-pitched roofs of the neighbourhood's blocks. Arranja Já comes out to wash them the careful way.

25K+

Interventions

4.8

Average rating

98%

Satisfaction

10+

Years experience

About our service in Alvalade

Leaves are the part people underestimate. They do not just sit on top of the glass, they slide down and jam under the bottom edge of the rows, where they hold moisture against the frame and rot down into a black compost. Clearing that out is as much a part of the visit as washing the glass, and so is checking that the roof outlets have not silted up with the same material. Pollen is the other local speciality: dry it blows about harmlessly, but the first damp morning turns it into a film that grips. The wash is done with demineralised water and a soft brush at controlled pressure, taking the time to soften what has bonded rather than forcing it. We do not own a pressure washer for this trade and we would not use one: high pressure aimed at a frame joint can push water past the seal, and the electrics live directly behind. Nothing abrasive goes near the surface, because the anti-reflective coating on a module is thin, easily dulled and impossible to restore, and nothing acidic or alkaline either. It is also the plainest way to void the manufacturer's warranty on an installation you have paid a great deal for. Demineralised water finishes clean, which matters on dark glass where hard water dries into visible limescale spotting. Heat dictates the appointment. Glass that has been in the sun since morning is genuinely hot, and cold water on it is a thermal shock that risks micro-cracks in the cells, so we take the early slot, the end of the day, or a cloudy one. Afterwards you get a straightforward account of the installation's condition: glass, seals, frame corners, clamps and rails. Where something looks wrong on the electrical side, a discoloured connector, a cable that has chafed against a rail, heat marking, a crack in the glass or a delaminating cell, we photograph it and tell you to call your installer or a certified electrician. We never open the inverter, disturb the DC wiring or take a panel off its mounting. Our part is the cleaning and an honest report.

Here is what we handle on an Alvalade roof:

Services Included

Leaf litter and rotted debris pulled out from under and between the rows
Pollen film, traffic grime and dried droppings washed off the glass
Gentle wash with demineralised water and a soft brush, no chemicals used
Roof outlets and drainage channels cleared of leaf mulch and grit
Frame and mounting condition check, reported with photographs

Areas We Serve

We work throughout Alvalade and the streets nearby: Avenida do Brasil, Avenida de Roma, Bairro das Estacas, Alameda das Linhas de Torres, Areeiro, Campo Grande and São João de Brito.

Bairro de AlvaladeAvenida da IgrejaRomaCampo GrandeSão João de Brito

Work Gallery

Rating

4.7

(4+ reviews)

Response within 2h
Verified professionals
Satisfaction guaranteed

Guarantee

Satisfaction guaranteed or your money back. Anything left short of the mark and we return to put it right.

Hours

Mon-Sat: 9am-8pm

Sunday: Closed

Satisfaction guaranteed or your money back. Anything left short of the mark and we return to put it right.

Frequently Asked Questions

The questions we field most often in Alvalade:

There is a big tree overhanging our roof. Should we clean more often?

Yes, and expect leaves to be the main job rather than dust. Trees mean litter in the valleys and under the rows all autumn, then pollen in spring. If the branches also shade the array, be aware that cleaning cannot fix shading; only pruning or a different layout will.

What time of year is best to book?

The end of the dry season is the clearest marker: months of accumulated dust that has never been properly rinsed, cleared before the high-output summer months. After a heavy leaf fall is the other sensible moment in this neighbourhood.

Do you also clean solar thermal collectors, or only photovoltaic?

Both. Plenty of blocks around here have thermal collectors for hot water rather than electricity, and the glass gets just as dirty. The cleaning method is the same, and the same rule applies to the plumbing side as to the electrics: we do not touch it.