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 Cerritos
Solar panel cleaning in Cerritos typically costs $150-$320 for a standard residential array, and most jobs are completed within 90 minutes. We schedule cleanings across 90703 six days a week, and we can usually have a truck at your door within 48 hours of your call. If you live near Cerritos High, Whitney High, or over in the tract behind Cerritos Mall, you’ve likely seen our truck: white, clearly marked, with a real person driving it. Call (877) 550-6892 and Gus’s crew will tell you straight what your panels need and what they don’t. Nobody here works on commission, and nobody here needs a signature tonight.
Why Gus’s Solar Is Cerritos’s Preferred Solar Panel Cleaning Company
Where the 91 freeway bends past Cerritos, it leaves a film on everything: car-brake dust, tire particulates, trace exhaust soot. It settles on your roof, and on your panels. This is where we work, and this is what we remove. We know the production-smothering combination that builds up on Cerritos rooftops specifically, and we bring the right rinse to cut it.
Gus Petrakis has put his name on this work since 2011, and he lives with the results like you do. The crew that shows up is background-checked and uniformed. They are Gus’s own people, not a sub crew a national company rolls through once and never again. We publish our address and our license number. We answer the phone like a neighbor, not a call center.
Every cleaning carries the 90-Day Done Right Promise in writing. If something wasn’t done right, Gus makes it right. That’s the whole guarantee. One call brings him back.
The reviews Cerritos homeowners leave us mention the same things: on time, no upsell, no pressure. People like that we tell them when a cleaning is not worth the money yet. We’ll tell you if you can wait another four months. That costs us a job sometimes, and we’re fine with it.
Our Solar Panel Cleaning Services in Cerritos
Residential Panel Cleaning
Most Cerritos arrays are 16 to 28 panels on low-slope or moderate-pitch roofs. We clean them with deionized water and soft brushes, no harsh chemicals, and no pressure washing that voids your panel warranty. A typical single-story ranch near Cerritos Regional Park takes about an hour. A two-story tract home near Gonsalves or Carmenita takes a bit longer, mostly for ladder setup and roof access. We inspect panels as we clean and flag early signs of microcrack corrosion or hot spots before they turn into repair bills.

Commercial Array Cleaning
Cerritos has a good number of flat-roof commercial buildings, especially along 183rd Street, South Street, and the office parks around the Cerritos Auto Square. These arrays collect standing dust and bird droppings in patches, because flat roofs don’t get rain runoff the way pitched ones do. We clean commercial arrays with the same deionized rinse, but the job moves faster per panel. We also flag any ballast shifts or racking stress we see while we’re up there. If you run a business in Cerritos, call (877) 550-6892 and we’ll give you a per-panel number before we touch the roof.

Bird & Critter Guard Installation
Pigeons are the biggest pest problem for Cerritos rooftops, and they particularly like the gap between the panel frame and the roof deck on low-slope ranch homes. They nest there. They leave droppings that shade cells and eat into anti-reflective coatings over time. We install powder-coated, weatherproof critter guard around the panel perimeter, before we clean. If you already have nesting, we remove it during the same visit and then install the guard. This work matters more in Cerritos than on the coast: the 91 freeway corridor hosts big bird populations, and the master-planned housing stock gives them a lot of identical roof angles to colonize.

Debris & Soiling Removal
Cerritos’s older neighborhoods, especially the 1960s ranch streets west of Pioneer Boulevard, carry mature trees that shed pine needles, eucalyptus strings, and leaf litter onto the roof. That debris collects at the bottom of each panel skirt, traps moisture against the aluminum frame, and accelerates microcrack corrosion. We bag and remove debris by hand, not by blowing it around, and we clear your roof drains while we’re up there. The panels get a full rinse after the debris is gone.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Cerritos
We clean and inspect almost every panel currently on Cerritos rooftops, but we see a lot of Panasonic, Canadian Solar, JinkoSolar, and REC modules, often paired with Tesla Powerwall batteries or Enphase microinverters. We keep compatible replacement parts in our truck for the common local installs, which means a follow-up repair usually doesn’t require a second trip. That matters when fast turnaround is the point of the call. If your panels are under warranty, we know the manufacturer’s cleaning specs and we work inside them.
Common Solar Panel Cleaning Problems We See in Cerritos Homes
- Biofilm from marine-layer moisture plus 91 freeway dust. Cerritos sits about 12 miles inland, just far enough that the coastal marine layer sometimes reaches it and sometimes doesn’t. When a light morning moisture settles on panels already coated with freeway particulate, it forms a grimy film that homeowners mistake for normal dullness. Production slides 5-9% before anyone calls us.
- Debris accumulation along panel skirts on ranch roofs. Low-slope roofs from Cerritos’s 1960s-1980s building boom don’t shed pine needles, eucalyptus bark, or leaf litter the way steeper roofs do. Debris piles up against the frame, holds moisture, and quietly damages the panel edge seals.
- Bird droppings on a few shaded cells tripping whole-string shutdowns. Cerritos installs under NEM 3.0 often put panels in partially shaded spots to fit battery storage gear. On microinverter systems, a single well-placed bird dropping on a shaded cell can drop an entire panel’s output enough to trigger a string-level shutdown. One bird can reduce a whole section of your array by half.
- Ash from seasonal Santa Ana conditions. When fall winds kick up, fine ash from inland fires and local particulate drifts over Cerritos and leaves a residue that rain doesn’t fully remove. Homeowners near the 91/605 interchange see this worst. Twice-yearly cleaning catches it before it bakes into the glass.
How Cerritos’s Multi-Generational Households Change the Math on Panel Cleaning
Cerritos has one of the highest concentrations of multi-generational Asian-American households in southeast Los Angeles County. That fact changes solar economics here, because electricity consumption in these homes is not one family’s load, it’s two or three generations under one roof. These households routinely push their SCE billing into the upper rate tiers, where every kilowatt-hour costs materially more than the baseline rate. When panel soiling shaves 4-6% off production, the loss lands on the most expensive tier of the bill. The true-up statement at the end of the year is where that money shows up, and it stings.
A cleaning here is not a cosmetic choice. It directly protects the payback period on a solar purchase, because production lost to soiling on a high-consumption household is production you buy back from SCE at the worst possible rate. The same 5% loss on a Long Beach home with modest consumption barely registers. In Cerritos, it moves the needle.
We cleaned a 24-panel Qcells array on a two-story tract home near Cerritos High where three generations share one roof. The panels hadn’t been washed since install, and a stubborn layer of ash and car-brake dust from the nearby 91 freeway had cut the homeowner’s production estimate by nearly 9%. Our truck-mounted deionized water rinse restored output to within a half-percent of the inverter’s original azimuth rating, and we scheduled a twice-yearly cleaning plan to preempt the same soiling pattern. That’s what we mean when we say we protect the payback period.
Pricing for Solar Panel Cleaning in Cerritos, CA
A standard residential cleaning in Cerritos runs $150-$320 depending on array size, roof pitch, and how much debris we’re hauling off. Two-story homes add a bit for ladder work. A 16-panel single-story job is usually at the low end; a 28-panel two-story with critter waste is at the high end. We quote a flat number before we touch the ladder, and that number is the number you pay.
- Residential panel cleaning (16-28 panels): $150-$320 flat rate
- Commercial array cleaning: $12-$20 per panel, minimum $300
- Bird & critter guard installation: $9-$14 per linear foot, installed
- Debris & soiling removal with full rinse: included with residential cleaning
- Scheduled cleaning plan (twice yearly): $130-$260 per visit, locked rate
Senior and veteran homeowners get 10% off, no expiration. If you have a written estimate from another company, bring it and we’ll give you a free second opinion. Call (877) 550-6892 and we’ll reach a number in about five minutes. Estimates are free, and we won’t push you to decide this week.
We Also Serve Cities Near Cerritos
Our trucks run regular routes from Cerritos into Artesia, La Palma, Norwalk, and Hawaiian Gardens, so scheduling a cleaning in any of those cities usually happens within the same week. If you’re just outside the 90703 ZIP and wondering whether we’ll come, call and ask. We’ll tell you straight. You can see the full scope of our cleaning work on our Solar Panel Cleaning page, and if you’re in Cerritos proper, you’re already in our home territory.
Serving Cerritos, CA - Our Local Coverage Area
We’re based in the Cerritos 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 Cerritos
Twice a year is the right schedule for most Cerritos homes: once in late spring to clear the freeway particulate and marine-layer film, and once in late fall after the Santa Ana ash settles. Homes within a quarter mile of the 91, especially near the 605 interchange, may want a third cleaning in dry years. The only way to know for sure is to check your production history against the inverter’s rating. Call (877) 550-6892 and we’ll read your numbers and tell you if a cleaning pays for itself right now.
Yes, more in Cerritos than in most nearby cities. Under NEM 3.0, export credits are low, which means the economics of solar in Cerritos now lean heavily on self-consuming your own production during daylight hours. Soiled panels produce less during exactly the hours you want to consume. On a multi-generational household running AC, cooking, and electronics through the daytime, a 5-9% cleaning-related production loss flows almost dollar-for-dollar onto the SCE bill. Cleaning recovers that production. It is the cheapest kilowatt-hour you will ever buy. Call (877) 550-6892 and we’ll show you the simple math on your own bill.
Yes, and here’s the direct reason. A Powerwall charges from whatever your panels produce that you are not using in real time. If panels are producing 8% less because of soiling, the battery charges 8% less, and you end up buying more from SCE in the evening. Cleaning restores the full charge window. It also reduces the number of days your battery finishes the day below capacity going into a hot evening, which is exactly when Cerritos homes need stored power most. We service homes with Tesla, Enphase, and FranklinWH storage systems daily.
Not harder, but slower and more debris-prone. Low-slope ranch roofs from the 1960s and 1970s hold pine needles, eucalyptus strings, and leaf litter against the panel frames, and that debris does not leave on its own. We spend extra time on hand removal and frame inspection on those roofs, which is why a ranch home cleaning sometimes takes 15-20 minutes longer than a two-story tile roof with better drainage. We quote the same flat rate regardless, so you know the number before we start.
Yes, and it can be severe. A pigeon nest shades a cluster of cells and the droppings etch the glass and anti-reflective coating over time. On microinverter systems, which are common on Cerritos’s newer NEM 3.0 installs, a heavily shaded panel can drop an entire string’s output. We remove nesting, clean the affected panels, and install powder-coated critter guard to keep the pigeons out. Call (877) 550-6892 if you see birds coming and going under your array; the fix costs a fraction of the lost production.
Call Gus’s Solar for Panel Cleaning in Cerritos
If your panels are dirty, you can see it in your numbers. Bring Gus a utility bill and an inverter screenshot, and he’ll bring you the math without a sales pitch. The price we quote is the price you pay, the schedule we set is the schedule we keep, and the guarantee is in writing. Take two weeks to think about it if you want. The price will be the same. Call (877) 550-6892 today and talk to a live person who knows Cerritos roofs, Cerritos dust, and exactly what your panels need.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Cerritos and nearby cities with honest, local, done-right solar work since 2011.






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