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 San Carlos
Dirty panels in San Carlos lose somewhere between 5% and 25% of their output, depending on how much dust, pollen, and bird activity your roof sees. That is production you already paid for, and it walks off the array every day it sits under grime. A professional Solar Panel Cleaning for a typical San Carlos home costs $150 to $350 and takes about an hour to ninety minutes. Gus’s crew knows the 94070 rooftops, from the ranch homes east of El Camino to the hillside places west of it, and we can usually be there within a day or two. Call (877) 550-6892 and a live person picks up.
Why Gus’s Solar Is San Carlos’s Preferred Solar Panel Cleaning Company
Gus Petrakis founded this company in 2011 and put his own name on the door, the trucks, and every invoice. The difference shows when something goes sideways. You call, Gus answers. If a bird nested under your array off Brittan Avenue or the eucalyptus dropped a load of debris on your panels near Crestview Drive, you may need San Carlos Solar Panel Repair - and the person who picks up the phone is the person who owns the company. Not a scheduler in a call center three states away.
San Carlos homeowners keep calling us back because the crew is background-checked, uniformed, and has been on the roof before without leaving a mess in the gutters or boot prints on the shingles. We price the job before we start, and the number we quote is the number you pay. There is no upselling, no invented urgency, and no subcontractor handoff. Gus’s own crew does the work.
One more thing worth knowing: every job carries the 90-Day Done Right Promise in writing. If something is not right, one call brings Gus back to make it right. That is how a local shop survives 29 years of word-of-mouth on the Peninsula.
Our Solar Panel Cleaning Services in San Carlos
Residential Panel Cleaning
The flatlands east of El Camino Real are thick with 1950s and 1960s ranch homes, and many of those low-pitched roofs collect dew, dust, and pollen that bake into a film over the course of a dry Peninsula summer. We hand-wash or use soft-brush deionized water systems depending on the array and roof type, as part of our Solar Panel Maintenance & Monitoring - San Carlos service. Most San Carlos residential jobs run $150 to $250.

Commercial Array Cleaning
Warehouses and office parks along Industrial Road and Shoreway Road run big flat arrays that lose production in a way you can see on a monitoring dashboard. We schedule Commercial Solar Installation in San Carlos cleanings around your operational hours and provide before-and-after production notes. Pricing runs from $500 to $1,500 depending on array size and access.

Bird & Critter Guard Installation
Pigeons and starlings love the gap between the panel frame and the roof deck. Once they move in, you get droppings, nesting material, and the smell. We install mesh critter guards that seal the perimeter without voiding panel warranties. A typical San Carlos home runs $400 to $900. This is the single best dollar you can spend right after a cleaning, because it keeps the next cleaning bill lower.

Debris & Soiling Removal
The western hills of San Carlos hold mature eucalyptus and oak trees that shed leaves, bark, and sap onto south-facing roof sections. Wind events push that material under the rail gap where it traps moisture against the shingles. We clear the debris, wash the glass, and eyeball the racking for anything that looks loose. Most debris-only calls run $125 to $200.

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 San Carlos
We clean and maintain SunPower, REC, and Panasonic arrays, among others. The important part is not the brand on the panel, it is knowing what the manufacturer will and will not let you touch. Some panels have special glass coatings that react badly to the wrong cleaning chemistry. We stock the right cleaning supplies for San Carlos jobs in our Bay Area office, so there is no waiting on a distributor order. If you are not sure what panels are on your roof, send a photo or read the label next time you are up there, or just describe the panel look and we will figure it out on site.
Common Solar Panel Cleaning Problems We See in San Carlos Homes
- Fog-belt soiling films. San Carlos sits in a Peninsula microclimate that gets more sun than its neighbors, but it still catches periodic marine layer mornings that leave a fine dust-and-moisture residue on glass. That film bakes in once the sun breaks through and cuts production even when the panels look clean from the ground.
- West-hill tree debris. Homes off Britannia, Crestview, and the steeper streets running uphill from Alameda de las Pulgas face a specific problem: neighboring oak and eucalyptus on uphill lots shed continuously into south-facing arrays. The debris settles under panels, traps moisture, and invites insects and rot.
- Bird nesting under flush-mount rails. The ranch homes east of El Camino have long, low rooflines that birds favor for nesting. Once established, a pigeon colony under the array becomes a monthly cleaning problem, not an annual one. Critter guard solves it permanently.
- Post-storm sediment streaks. After a good winter storm, panels develop streaky mineral deposits where runoff carried dust down the glass and evaporated in the first sunny afternoon. Those streaks shade cells unevenly and do not come off with rain alone.
Pricing for Solar Panel Cleaning in San Carlos, CA
A standard San Carlos residential cleaning runs $150 to $350 depending on array size, roof pitch, and how much debris has built up. Steep hillside roofs with multiple planes push toward the top of that range. Commercial arrays start around $500. Debris-only visits run $125 to $200. Critter guard installation runs $400 to $900 for a typical home.
What moves the number: roof access, array size, and whether we are also clearing tree litter. What does not move it: the quote. The price Gus gives you over the phone is the price on the invoice. No surprise line items. No same-day decision pressure. Take two weeks if you want. The price stays the same. Call (877) 550-6892 for a free estimate.
| Service | Typical San Carlos Price Range |
|---|---|
| Residential panel cleaning | $150 - $350 |
| Debris & soiling removal only | $125 - $200 |
| Bird & critter guard installation | $400 - $900 |
| Commercial array cleaning | $500 - $1,500 |
| Cleaning + critter guard combo | $500 - $1,100 |
We Also Serve Cities Near San Carlos
Gus’s crew works throughout the mid-Peninsula, so if you live just over the line in Belmont, Redwood Shores, Redwood City, or North Fair Oaks, we can usually reach you on the same schedule as a San Carlos call. We also handle EV Charger Installation in San Carlos and Solar Panel Maintenance & Monitoring in San Carlos for homeowners who want more from their system than a one-time wash.
Serving San Carlos, CA - Our Local Coverage Area
We’re based in the San Carlos 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 San Carlos
A standard residential cleaning in San Carlos costs $150 to $350. The price depends on how many panels you have, how steep the roof is, and how much debris has collected around the array. Call (877) 550-6892 for a free estimate. Gus will quote you a number over the phone, and that is the number on the invoice.
Most San Carlos calls can be scheduled within one to two business days. If you have a post-storm mess or a bird situation that needs attention before it worsens, call and ask. A live person answers, and we will tell you straight when a crew can be there.
Yes. We work regularly off Brittan Avenue, Crestview Drive, and the steeper streets running uphill from Alameda de las Pulgas. Those roofs take more planning because of the pitch and tree cover, but our crew is comfortable working on them. The cleanup is the same; getting the ladder set safely just takes a few extra minutes.
Most of the time, yes. San Carlos has a serious pigeon presence, especially along the flatland ranch-home corridors east of El Camino. If birds have already nested once, they will be back within weeks of a cleaning. A critter guard pays for itself by keeping future cleaning visits cheaper and protecting the roof deck under the array.
No, not when it is done with the right materials. We use soft brushes or deionized water systems that meet manufacturer standards for SunPower, REC, Panasonic, and other major brands. Harsh chemicals and pressure washers are the two things that actually damage panel coatings. We do not use either. Our work is also backed by the 90-Day Done Right Promise. If something was not done right, Gus comes back and makes it right.
Written by Gus Petrakis, Owner at Gus’s Solar, serving San Carlos since 2011.






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