Solar Panel Cleaning in Addison

What Cleaning Fixes and What It Doesn't

A solar cell only produces what light reaches it. When grime builds up on the glass, especially along the bottom edge where rain pushes it and leaves it to dry, output drops across the whole panel. Because panels are wired in strings, one heavily shaded or soiled module can pull down the ones beside it.

Plenty of homeowners call us thinking a panel has failed when the real cause is a crusted layer of dust or a cluster of droppings. We clean first and compare the numbers afterward, because a wash costs far less than a replacement module. If output stays low on a clean array, we tell you plainly and point you to our solar repair service instead of guessing.

Spring pollen and summer dust storms in North Texas can leave a visible coat within weeks, so timing a cleaning after the heavy pollen season usually gets you the most out of it.

What Comes With Every Cleaning

Rinse with purified water

We clean with deionized water, stripped of dissolved minerals. Regular tap water leaves white calcium marks behind that shade the cells just like dirt.

Gentle brush work

Soft, water-fed brushes loosen grime without marring the glass's anti-reflective coating. We skip pressure washers, since they can drive water past frame seals and into junction boxes.

Chemical-free cleaning

Solvents and gritty cleaners can eat into coatings and wear down the rubber seals around each module. Tough droppings get extra soaking with pure water and steady effort instead of a scrub pad.

A look over the array

With the glass clear, we check for cracks, hot-spot discoloring, loose or rubbed wiring beneath the panels, and birds nesting under the array. Anything worth knowing about, we photograph for you.

Output check before and after

If your system has a monitoring app, we compare production before and after the wash, so you see a measured gain rather than just cleaner-looking glass from the driveway.

Signs Your Panels Are Due for Cleaning

• Production slipping on clear days

  Your monitoring shows lower output on sunny days than it did at the same time last year. Dirt is the first and cheapest thing to rule out.

• A visible film or dirt line

  You can see a hazy coat, or a band of grime along the lower frame where runoff collects and dries.

• Bird droppings on the glass

  Droppings are opaque and don't rinse off in a light rain. A single spot over one cell can trigger the bypass diode and cut that section's output.

• Pollen or leaf buildup

  Yellow pollen dust in spring or leaves caught against the frames from nearby trees both block light and hold moisture against the glass.

• No cleaning in over a year

  Rain alone rarely gets panels fully clean, especially on low-pitch roofs where water sheets slowly and leaves residue behind.

What Happens on Cleaning Day

1. 1

   Start with a phone call

   Let us know your panel count, how tall the roof is and what your production numbers have been doing. We book a time, typically early in the morning while the glass is still cool.

2. 2

   Power down and rig for safety

   We turn the system off using the inverter's shutdown steps and put fall protection in place before anyone gets near the panels. Starting on cool glass matters, since cold water hitting sun-baked glass can stress it.

3. 3

   Brush and rinse

   We work row by row with purified water and a brush, then rinse so the glass dries without spots. Thick droppings or lichen get a longer soak, not harder scrubbing.

4. 4

   Check and walk you through it

   Once the glass is clean, we look over the modules, frames, racking and exposed wiring. Then we turn the system back on, make sure it's producing, and go over the photos and anything that deserves a second look.

What Sets the Price of a Cleaning

The price comes down mainly to how much glass needs washing and how safely we can get to it. Once we understand your setup, we quote by phone, and we let you know ahead of time if thick buildup will add time.

Panel count

Each extra module adds glass to clean and minutes on the roof.

How high and steep the roof is

Two-story or steep roofs take more safety rigging and slower footwork than a single-story roof with a gentle slope.

Amount of grime

Light dust comes off fast. Hardened droppings, lichen or a full year of pollen need longer soaking and more brushing.

How the array is laid out

Panels spread over several roof faces or squeezed beside vents and chimneys take more time to reach than a single unbroken row.