Why Solar Cleaning in Arizona is a Must

Why Regular Solar Panel Cleaning is a Must in Arizona

By: Sunbros Cleaning | July 29, 2025

If you’re a homeowner in Peoria, Glendale, Surprise, or anywhere in the West Valley, there’s a good chance you’ve invested in solar panels. Great move. But here’s the part many homeowners overlook:

Dirty panels = lost energy + wasted money.

Arizona is one of the sunniest places in the country, which makes it a perfect state for solar energy. If you’ve made the investment in solar panels, you're probably expecting big savings on your electric bill and long-term energy independence. But there’s one critical step most homeowners overlook after installation; regular solar panel cleaning.

While solar panels are designed to be low-maintenance, they’re not maintenance-free. In fact, keeping them clean can dramatically affect how much power they generate and how much money you save.

In this article, we’ll break down why cleaning your panels 2–4 times a year is essential, how Arizona’s climate impacts solar performance, and why partnering with a local, trusted company like Sunbros Cleaning can protect your system and your wallet.

1. Improved Efficiency and Lower Energy Bills

Dirty panels absorb less sunlight, meaning they generate less power. A professional cleaning can:

• Boost energy production by 10–30%

• Help your system hit its promised performance output

• Lower your utility bills and increase solar ROI

Learn more here

2. What about the rain?

There’s a common myth that rain alone is enough to clean solar panels. While this may be partially true in climates with frequent showers, Arizona is not one of them. Here in the West Valley — in cities like Peoria, Glendale, Surprise, and Sun City we deal with dust storms, bird droppings, tree pollen, and long dry spells between rains.

These environmental factors build up quickly on your panels and can reduce your system’s efficiency by up to 30% or more. That’s like paying for solar and only getting two-thirds of the value. The result? Your electric bill stays higher than it should, and your system’s return on investment slows way down.

3. What Happens If You Do Not Clean Your Solar Panels?

Let’s say your panels haven’t been cleaned in six months. On the surface, they might just look dusty. But that layer of dust acts like a filter, blocking sunlight from reaching the photovoltaic cells that generate electricity. Add bird droppings, pollen, and the occasional tree sap, and now you've got uneven energy production, potential hot spots, and long-term surface degradation.

The damage isn't just cosmetic. Many solar panel manufacturers actually require regular cleanings as part of their warranty terms. If a problem arises and the panels show signs of neglect, you may be left footing the repair bill yourself. That’s why keeping a routine cleaning schedule—every 3 to 6 months, is not only smart but often required to protect your investment.

4. What Makes a Professional Solar Cleaning Different?

DIY might sound tempting, but hosing down your roof panels can cause more harm than good—especially if you’re using hard water, harsh soaps, or pressure washers. Not only can you leave behind water spots that reduce efficiency, but you could scratch the anti-reflective coating or worse—damage the seals.

At Sunbros Cleaning, we use:

• Soft-bristle, solar-safe brushes

• Spot-free, purified water rinses

• No soaps, no pressure, and no residue

• Documentation and before/after photos for your records

Our methods are approved by panel manufacturers and safe for all roof types.

5. Why West Valley Homeowners Trust Sunbros Cleaning:

We’re not a jack-of-all-trades — we specialize in solar panel cleaning and bird proofing, and that focus shows in our results. As a family and owned company based right here in Arizona, we take pride in doing honest, thorough work that protects your biggest investments.

With over 250 five-star Reviews and a growing client base in Peoria, Glendale, Sun City, and Surprise, we’ve built a reputation for:

• Showing up on time

• Educating our clients

• Doing the job right the first time

We even offer exterior window cleaning, gutter clearing, and solar bird-proofing packages to give you full protection and peace of mind.Want Worry-Free Panel Care?

We offer discounted quarterly and biannual cleaning plans — never worry about calling us. We show up, clean up, and you stay efficient all year.

Click Here To Get Your Free Estimate!

📲 Call/Text: [602-501-9847]
🌐 Visit sunbroscleaning.com