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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.
Solar Services in San Leandro, CA
Solar in San Leandro is a good deal when the system is designed for your actual roof, your actual panel, and the marine layer that rolls through the flatlands most summer mornings. We serve homeowners across 94577, 94578, and 94579 with solar panel installation, battery backup, panel cleaning, maintenance, and repair. A real person answers the phone 24/7, and our crew knows San Leandro’s tract-home roofs and 60-amp panels better than any door-knocker with a laminated brochure. Call (877) 550-6892 and you’ll get Gus or someone on his team, not a call center three states away.
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.
Why San Leandro Homeowners Choose Gus’s Solar
Most of the calls we take from San Leandro start the same way: a homeowner got a quote for Solar Panel Installation - San Leandro from a national outfit, felt rushed, and wants a second set of eyes. We’re the second set of eyes. Gus Petrakis puts his own name on the truck, on the estimate, and on the 90-Day Done Right Promise that comes with every job in writing. If it’s not right, one call brings Gus back. That’s the whole guarantee.
We work in the Washington Manor and Estudillo Estates neighborhoods regularly, along with Bay-O-Vista and Marina Faire. You’ll see our uniformed, background-checked crew on roofs around town, not a revolving cast of subcontractors. The people who show up are Gus’s people. That matters when a 50-year-old composition shingle roof in the flatlands needs penetrations flashed properly, or when a hillside home in 94579 needs an array angled to catch afternoon sun instead of morning fog. Local experience means we already know which neighborhoods face which way and which panels are going to need an upgrade before you ever sign anything.
We don’t ask for a signature tonight. Take two weeks. Think about it. The price will be the same. If a salesman needs an answer tonight, the answer is no.
Solar Services We Offer in San Leandro
Solar Panel Installation
We design and install rooftop solar for San Leandro’s specific mix of flatland fog and hillside sun. Every proposal starts with your actual utility bill and a real irradiance check for your exact address, not a zip code average. Learn more about our Solar Panel Installation in San Leandro.

Solar Battery Storage & Backup
Battery backup makes the most sense in San Leandro for two reasons: the marine layer shortens your peak production window, and PG&E’s public safety power shutoffs hit the East Bay hills harder than the flatlands. We install FranklinWH and Tesla Powerwall systems sized to your actual evening load. Learn more about our Solar Battery Storage & Backup in San Leandro.

Solar Panel Cleaning
Panels in the 94577 flatlands collect a grime of bay mist, dust from the Davis Street corridor, and the occasional seagull deposit. Cleaning twice a year typically pays for itself in recovered production, especially on low-slope roofs where water pools. Learn more about our Solar Panel Cleaning in San Leandro.

EV Charger Installation
EV Charger Installation in San Leandro for a tract home usually means a panel upgrade first. Most of the post-WWII houses here still carry original 60- or 100-amp service, and we quote the full electrical reality up front, not a surprise change order. Chargers from Tesla, Enphase, and others all install cleanly once the panel is sorted.

Solar Panel Maintenance & Monitoring
We monitor systems and notice when production dips before you do. Gus is the one who calls you when something goes wrong, which is a different kind of solar company. We handle inverter firmware, ground faults, and underproduction diagnostics without sending you to a ticket portal.

Solar Panel Repair
Hail, raccoons, aging microinverters, a failed string. We repair systems we didn’t install, and we show up with honest diagnosis before any repair estimate. $40 off any repair over $200, and no trip charge inside our own county.

Commercial Solar Installation
San Leandro’s Davis Street industrial corridor and bay-side warehouse district give this city a commercial flat-roof solar market that neighboring towns simply don’t have. We’ve worked on warehouses, manufacturing buildings, and distribution centers, and we know the local permitting office and fire code requirements for commercial rooftop arrays. If you run a building along Davis or Alvarado, call us directly and we’ll bring the load math.

Neighborhoods We Serve in San Leandro
We work all over San Leandro and can usually be on-site within a day for estimates and same-day for urgent repairs. Here are a few of the areas we’re out in every week:
- Washington Manor
- Estudillo Estates
- Bay-O-Vista
- Marina Faire
- The hillside streets above 580 in 94579
Why San Leandro’s Climate & Housing Affect Solar
San Leandro splits into two solar climates. The bay-adjacent flatlands in 94577 sit directly in the path of the marine layer that funnels through the Oakland Estuary and Bay gaps and can stay socked in until late morning from May through September. The hillside neighborhoods climbing toward the East Bay hills in 94578 and 94579 break clear earlier and log noticeably more peak sun hours annually.
That split changes the math. A solar proposal copied from sunnier Fremont will overpromise production for a Marina Faire bungalow. A proposal borrowed from foggier Daly City will under-size a hillside home in 94579. Every site needs its own irradiance check, and we run one before we quote a single number. Gus likes to say he quotes the year-25 output, not the day-one brochure number, and in San Leandro that difference is the whole ballgame.
Then there’s the housing stock. Most of San Leandro’s residential streets are lined with post-WWII tract homes built between roughly 1945 and 1970: single-story stucco ranches and small bungalows with composition shingle roofs. Many still carry the original 60- or 100-amp electrical panel, which cannot legally or safely support a solar-plus-EV-charger load. That panel upgrade cost gets front-loaded into our proposals so there are no surprises after you’ve signed.
Pricing for Solar in San Leandro
Here’s what we tell homeowners over the phone, because honesty up front beats a glossy brochure.
- A typical 10-panel rooftop system in San Leandro runs between $14,000 and $19,000 before incentives, depending on roof condition, panel choice, and whether a panel upgrade is needed.
- A main panel upgrade from 100-amp to 200-amp, required on many older San Leandro homes, adds roughly $2,500 to $4,000.
- Battery backup, including a FranklinWH or Tesla Powerwall unit, usually lands between $11,000 and $16,000 installed, depending on your load.
- Solar panel cleaning runs $150 to $300 per visit for most San Leandro homes.
- EV charger installation starts around $600 for a straightforward install and rises with panel work.
Bring me a bill, I’ll bring you the math. Every estimate we write is anchored in your real usage and current export rates. Call (877) 550-6892 for an exact quote, free.
Service Area - Cities Near San Leandro
We also serve neighbors in Ashland, San Lorenzo, Cherryland, and Castro Valley. If you’re just over the city line, call us, and we’ll tell you straight whether your address is in our service area.
Serving San Leandro, CA - Our Local Coverage Area
We’re based in the San Leandro 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 About Solar in San Leandro
A typical rooftop solar system in San Leandro costs between $14,000 and $19,000 before incentives, with a panel upgrade adding $2,500 to $4,000 when needed, which is common on the city’s post-WWII tract homes. The biggest variable is your roof and your electrical panel, not the panels themselves. Call (877) 550-6892 for a free estimate, and take two weeks on the decision with no price change.
Yes, but the marine layer in 94577 is a real factor, especially from May through September when morning fog can shave production until late morning. A south-facing array with proper tilt makes a bigger difference in the flatlands than in the hillside neighborhoods in 94578 and 94579, which clear earlier. We run an irradiance check for your exact address before quoting anything.
Many San Leandro homes built between 1945 and 1970 still have original 60- or 100-amp electrical panels, and those typically need an upgrade to 200 amps before a solar-plus-EV-charger system can be permitted. We include that cost in the proposal up front, not as a surprise after you’ve signed. Call (877) 550-6892 and we’ll help you figure out what your panel actually is.
For urgent repair calls, yes. We can often be on-site same-day in San Leandro, and we answer the phone live 24/7 with no after-hours voicemail. For estimates and consultations, we typically schedule within a day or two. Call (877) 550-6892 and a person will pick up, always.
That depends on the age of the system, the inverter, and the condition of the panels, and most San Leandro repairs cost far less than a replacement. We repair systems we didn’t install and will give you an honest answer about what’s worth fixing and what isn’t. A free second opinion on any written estimate means you can bring us a competitor’s quote and we’ll tell you straight whether it’s fair. Call (877) 550-6892 to schedule a look.
If you live in San Leandro and want solar done without the sales pitch, call (877) 550-6892. Gus or someone from his crew will answer, same number every time. Free estimates, no signature wanted tonight, and a one-page written quote with real numbers from your actual bill.
Written by Gus Petrakis, Owner at Gus’s Solar, serving San Leandro and the East Bay.
What happens when you call
- 1A real person answersNo phone trees - talk to a local solar pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What San Leandro Customers Say
"Honest quoting and good workmanship. He is not the cheapest quote I got, by some way, and he told me that himself and explained what the difference bought. I chose him anyway and I am glad."
- Alistair Fennimore"The install itself was excellent and the system performs as modelled. Permitting and the utility interconnection took about four months, most of it out of his hands, though the waiting was still frustrating."
- Marguerite Ostrowski"Told me straight that a battery did not make sense for how we use power and sold me the array without it. He talked himself out of a good deal of money that afternoon."
- Reginald Pontefract






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