Free bill analysis - bring a power bill, get the production math for your actual roof, panel brands like Qcells and REC compared side by side
If the pitch starts at your door and ends with "sign tonight for the special," sleep on it. The sun will still be there tomorrow; so will we.
Fast, Reliable Solar Panel Cleaning Across Fontana
Solar panel cleaning in Fontana typically runs $150-$325 for a standard residential array, and we can usually be there within 24 to 48 hours of your call. That’s not a brochure number. It’s what we charge for the homes we clean between Summit Avenue, the 10, and the mountain front. Gus Petrakis has been running crews in Fontana since 2011, and he still answers his own phone at (877) 550-6892. If your panels have been sitting under Fontana’s mountain-trapped dust for a season or two, you’re likely losing real production, not just curb appeal. We fix that.
Why Gus’s Solar Is Fontana’s Preferred Solar Panel Cleaning Company
We’re a local shop, not a franchise. Gus’s Solar operates out of the Inland Empire, and Fontana is one of the cities our own crews cover directly. When you call, a live person picks up, 24/7. Not a call center. Not a ticket queue. The same goes for the people on your roof: background-checked, uniformed, and employed by Gus, not subcontracted out to whoever’s available.
Fontana homeowners deal with a particular kind of soiling that most companies in Ontario or Rancho Cucamonga don’t understand. The San Gabriel wall behind the city traps airborne particulates. It’s not a theory. We’ve metered arrays in 92336 that were down 12% from dust alone. When we quote a cleaning in Fontana, we quote it for Fontana conditions, not some coastal template. That’s the difference between a real number and a guess.
Every job comes with the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Gus back. No arguing, no fine print. And if another company has given you a written estimate, bring it in. We’ll give you a free second opinion.
Our Solar Panel Cleaning Services in Fontana
Residential Panel Cleaning
Most Fontana homes need a full hand-cleaning, not a quick rinse. The dust here doesn’t sheet off with rain. It packs into tile skirts, standoff flashings, and around microinverter heat fins. We use low-pressure rinses and soft brushes built for glass and aluminum, and we clean the full array, not just the visible face. A standard 2,000-3,000 sq ft home in North Fontana usually takes our crew two to three hours.

Scheduled Cleaning Plans
Fontana’s mountain-front position means panels here accumulate soiling at roughly twice the rate of homes ten miles west. Our quarterly and semi-annual plans lock in a price and a schedule, so you’re not waiting until your true-up statement shows the damage. If net metering credits matter to you, a scheduled plan is the cheapest production insurance you can buy. We’ll watch your array on our own monitoring and call you when the numbers dip.

Bird & Critter Guard Installation
Pigeons love S-tile roofs in 92336. They nest under the tile caps and along parapets, and their droppings don’t just look bad. They etch glass and corrode aluminum rails. We install galvanized mesh guard along the tile transitions and parapet edges, sized for the gaps birds actually use. It’s not a generic kit. We cut and fit it to your roof.

Debris & Soiling Removal
After a Santa Ana event, the mountain front gets a layer of Mojave dust that settles into every flat surface. We remove caked dust, leaf litter from eucalyptus and palm, and the fine grit that brushes don’t lift. On flat concrete-tile roofs in older Fontana tracts, we also clear the drain paths so nothing dams up and holds moisture against the roof deck.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Fontana
We work on arrays built with Qcells, REC, SunPower, and Panasonic panels, among others. The cleaning method doesn’t change much from brand to brand, but the roof interface does, and that’s where our Solar Panel Cleaning team earns its keep. We know how to walk an S-tile roof without cracking tiles and how to clean around Enphase microinverters without fouling the connections. If you’re in Fontana and have a system we installed, we already have your roof details on file. If we didn’t install it, we’ll inspect it before we touch it.
Common Solar Panel Cleaning Problems We See in Fontana Homes
- Caked dust on S-tile skirts and standoff flashing: North Fontana’s S-tile roofs collect dust in the tile pockets, and that dust traps heat against the panel frame. We see afternoon cell temperatures run 15-20°F hotter than clean arrays in the same neighborhood, which shaves output during the exact hours your system should be producing hardest.
- Mojave dust loading after Santa Ana winds: Fontana sits against the mountain wall, and when the wind blows out of the Mojave, it drops a fine, alkaline dust that rain doesn’t wash off. Left for a full season, we’ve measured 8-15% soiling losses on arrays in 92335 and 92336.
- Pigeon nesting under S-tile caps: The gaps under Spanish tile on North Fontana homes are ideal nesting spots. Droppings etch glass and corrode rails, and feathers clog the airflow behind panels, cooking the electronics. We install guard at the first sign of nesting, not after the damage is done.
- Undersized electrical service in older flatland homes: Homes in 92334 and 92335 built in the 1950s and 60s often still have 100-amp panels. If you’re adding bird guard or any component that touches the electrical side of the system, Fontana Building & Safety may flag a panel upgrade first. We’ll tell you before the permit is pulled, not after.
Pricing for Solar Panel Cleaning in Fontana, CA
A standard residential panel cleaning in Fontana runs $150-$325 for an array up to 20 panels. Larger arrays or steep S-tile roofs in 92336 can push toward $400-$550, especially if there’s bird work involved. Critter guard installation typically adds $8-$12 per linear foot, depending on roofline and tile type. Scheduled quarterly cleaning plans are priced per visit, with the per-cleaning rate dropping when you commit to a plan. We don’t charge a trip fee inside our own county, and every quote is free. Call (877) 550-6892 and we’ll give you a number before we schedule anything. No signature tonight, no pressure. Gus’s rule: take two weeks, think about it, the price will be the same.
We Also Serve Cities Near Fontana
Our crews cover the surrounding Inland Empire, too. If you’re in Bloomington, Rialto, Glen Avon, or Pedley, we come to you with the same local pricing and the same 90-Day Done Right Promise. Solar Panel Cleaning in Fontana is our home base, but we cross the city line daily for scheduled plans and one-off cleanings.
Serving Fontana, CA - Our Local Coverage Area
We’re based in the Fontana area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Solar Panel Cleaning in Fontana
Fontana’s position directly against the San Gabriel and San Bernardino mountain front traps smog and Mojave dust that Rancho Cucamonga simply doesn’t hold onto the same way. We’ve measured soiling losses of 8-15% on unmaintained arrays in 92336, driven by fine particulates that settle into tile pockets and standoff flashings and stay there. Homes in Ranch Cucamonga, even a few miles west, don’t see the same accumulation rate. In Fontana, quarterly cleaning is a production decision, not a cosmetic one. Call (877) 550-6892 if you want us to meter your array and show you the loss.
Fontana’s inland thermal trough regularly hits 105-112°F in July and August, which pushes panel surface temperatures well past the STC test rating of 77°F. A dirty panel runs even hotter, and every degree above STC costs you production. Cleaning in spring, before the worst heat arrives, keeps panels running cooler and buying back peak afternoon losses. We schedule most Fontana cleanings in March through May for exactly that reason.
If the bird guard project touches the electrical system at all, Fontana Building & Safety may require a panel upgrade on older 100-amp services in 92334 and 92335 before they’ll sign off. A panel upgrade here typically adds $2,500-$4,000. If the cleaning and guard work is purely mechanical, no upgrade is needed. We’ll tell you which bucket your job falls into before you spend a dollar.
The same mountain wall that traps smog also traps dust that blows off the Mojave during Santa Ana events. That dust settles into the curving channels of Spanish S-tile, and because the tile holds it against the panel frame, it acts like an insulator, trapping heat. In the 92336 ZIP north of Summit Avenue, we regularly pull enough dust off a single array to fill a five-gallon bucket. It’s not a rain problem. It’s a geography problem.
Every kilowatt-hour your panels don’t produce because of soiling is a kilowatt-hour you either buy from SCE or lose in net metering credits. On a 6 kW system losing 12% to dust, that’s roughly 800-1,100 kWh a year in Fontana’s climate. At current SCE rates, a $200 cleaning that recovers most of that loss pays for itself in the first billing cycle. If you’re on a true-up plan, the math is even starker. Bring us a bill and we’ll show you the number.
Call Gus’s Solar for Panel Cleaning in Fontana
If your panels are dirty, call (877) 550-6892. A live person answers. We’ll ask about your roof type, your array size, and what you’re seeing on your production monitor. Then we’ll give you a number. Free estimate, no trip charge inside the county, and no pressure to sign tonight. Gus has been doing this since 2011, and his name is on the truck. The 90-Day Done Right Promise is on every job, in writing. If it’s not right, we make it right. That’s the whole deal.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Fontana and the Inland Empire since 2011.






Before
After
Before
After
Before
After