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TC Polished Windows

Solar panel cleaning in the Tri‑Cities, WA area.

Dust, pollen, and bird droppings cut your panel output. We climb the ladder so you don't have to — water-fed pole, RODI water rinse, no panel-walking, no scratches.

You've probably noticed…

Why people end up here.

  • The energy bills creeping up despite the panels being there.

  • The dust line on the array you can see from the ground after a windy week.

  • The bird droppings on the south-facing panels — those don't rinse off in the rain.

  • Knowing you should probably have them cleaned but not knowing who does it.

  • Not climbing on the roof yourself — and not wanting whoever does to be walking across your panels.

What's included

Everything in the price.

  • Roof-safe access — water-fed pole from a ladder, no foot traffic on the panels
  • RODI water rinse (reverse osmosis + deionized) — no mineral spotting on the cells
  • Bird droppings and pollen lifted, not just rinsed past
  • Soft-bristle brush head appropriate for tempered solar glass
  • Visible mounting / wiring concerns flagged with a photo and a description

How we work

Start to finish.

  1. Tell us about the system

    Array size, roof pitch, and what the panels are mounted to. Photos help — especially of the panels themselves and the roof access path.

  2. We schedule and arrive on time

    Pick a window that works for you. We show up when we said we'd show up.

  3. We clean from the ladder, not the panels

    Water-fed pole and a soft-bristle head do the work. RODI water rinses spot-free. We never walk on the array.

  4. The come-back guarantee

    If you spot anything we missed within 7 days, we come back at no charge.

FAQ

Common questions.

  • How often should solar panels be cleaned?

    Most Tri-Cities homes do well on an annual schedule, with a second pass after wildfire season if it was a bad year for smoke. Heavier tree cover or nearby agriculture (dust, pollen, bird traffic) can push you to twice a year.

  • Will cleaning actually improve my output?

    Yes, but how much depends on how dirty the panels were and how shaded your roof is. Heavy soiling can cut output 10-25%. Light dust is closer to 3-5%. We'll give you a realistic read after we see the array.

  • Do you walk on the panels?

    No. We use a water-fed pole from a ladder. Walking on panels can crack cells under the glass — the damage doesn't always show up until output drops months later.

  • Can pressure washing damage the panels?

    Yes. So can the wrong soap or scrubbing tool. Solar panels need low pressure, a soft brush, and mineral-free water.

A recent job

Before. After.

Real jobs from real Tri-Cities homes.

  • Rooftop solar array before and after cleaning, dust layer removed (before) Before
    Rooftop solar array before and after cleaning, dust layer removed (after) After

    Solar panel cleaning — Richland home

    Layer of dust and pollen lifted off the array. Water-fed pole rinse from a ladder — no panel-walking.

Ready for solar panel cleaning?

We reply the same business day.