Commercial Solar Installation in Corte Madera, CA | Gus’s Solar - Gus's Solar

Commercial Solar Installation in Corte Madera - Same-Day Service, Done Right the First Time

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Worth knowing

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.

Styles & brands we work with

Rooftop solar
Rooftop solar
Battery storage
Battery storage
EV charging
EV charging
Qcells
Qcells
REC
REC
Enphase inverters
Enphase inverters

Before & after – our own jobs

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Recent Project
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Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Fast, Reliable Commercial Solar Installation Across Corte Madera

Commercial solar in Corte Madera is a different animal than what the generic brochure guys sell. Most businesses here use Marin Clean Energy, not standard PG&E net metering, which changes your payback math. And a flatland building off the 101 corridor can produce 15 to 20 percent less than a hillside building a mile away, even with identical panels. If you want an estimate built on your actual usage, your actual roof, and your actual export rate, call us at (877) 550-6892. Gus Petrakis answers his own phone.

Why Gus’s Solar Is Corte Madera’s Preferred Commercial Solar Installation Company

We have been installing commercial arrays in Corte Madera long enough to know that a quote built on “Marin County average sun hours” is about as useful as a weather report from Fresno. The town’s split between fog-blanketed flatlands along Highway 101 and the sun-exposed lower slopes toward Mount Tamalpais means two rooftops a mile apart can have sharply different production profiles. We quote the year-25 output, not the day-one brochure number. That is not a slogan. It is how Gus does the math.

Our Commercial Solar Installation team handles everything from small retail storefronts to warehouse rooftops and carports, and we have worked with Corte Madera building officials enough to know what gets flagged and what sails through. The 90-Day Done Right Promise applies to every commercial job, in writing. If something is not right, one call brings Gus back. That is the whole point of working with a local shop that publishes its address and license number, not a sales crew three time zones away.

Customers in Corte Madera call us because a live person answers, 24/7. Not a ticketing portal. Not a voicemail that gets returned on Tuesday. When a commercial inverter throws a fault at 6 AM, you talk to someone who knows what an inverter fault means.

Our Commercial Solar Installation Services in Corte Madera

Commercial Rooftop Solar

Rooftop solar on Corte Madera’s older commercial buildings usually means low-pitched or flat roofs, membrane systems, and structural questions that national installers gloss over. We review the roof structure before we ever specify racking. On a 1970s split-level commercial building off Tamalpais Drive, our crew found the south-facing low-pitched roof partially shaded by a mature Coast Redwood planted as a windbreak decades ago. Before quoting, we ran a full shade analysis with Solargraf, then specified REC panels with Enphase microinverters to isolate the shaded roof planes from the sunny ones. The customer’s original bid from an out-of-area installer had ignored the tree entirely and overstated first-year production by nearly 18 percent. Commercial rooftop systems in Corte Madera typically run $2.90 to $3.80 per watt installed, depending on roof condition and array size, so a 50 kW system generally lands between $145,000 and $190,000 before incentives.

Commercial Battery Storage

MCE’s export compensation rates mean that banking credits during peak sun and pulling them back at night does not work the way it used to. Commercial battery storage changes that equation. A properly sized battery lets a Corte Madera business store midday production and discharge it during expensive evening hours, or keep the doors open through a public safety power shutoff. We install FranklinWH and Tesla Powerpack-scale systems, and we size them against your actual interval data, not a guess. A commercial battery system in Corte Madera typically adds $25,000 to $90,000 depending on capacity and integration complexity.

Solar Carport Installation

Carports solve two problems at once: they generate power and they turn wasted parking area into covered, shaded space. For Corte Madera strip centers and office parks along Tamal Vista Boulevard or Paradise Drive, carport solar puts panels up where roof space is limited or structurally challenged. Carport systems run higher per watt than rooftop, typically $3.50 to $4.60 per watt installed, because of the structural steel involved. But the production is often better, and the shade is a real amenity for customers and employees.

Commercial Solar Maintenance

Salt air and persistent morning fog do not treat solar equipment kindly. Connections corrode, microinverters fail, and production drifts downward quietly until someone looks at the monitoring data. We monitor every commercial system we install, and we service systems we did not install too. If your production has slipped and your original installer is not returning calls, we will come out, diagnose it, and tell you straight what it needs. A maintenance visit in Corte Madera runs $180 to $450 depending on scope, and a monitoring checkup catches most problems before they cost real money.

Need help today?Fast, friendly service and a no-obligation free estimate.

Call (877) 550-6892

What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Trusted Brands We Service in Corte Madera

We install and service equipment from Tesla, Enphase, SolarEdge, and FranklinWH, and we choose equipment based on the specific roof and shading reality of each Corte Madera building. For shaded or mixed-orientation commercial rooftops, Enphase microinverters are usually the right call because they let every panel operate independently. For clean, unshaded south-facing arrays, SolarEdge or Tesla string systems can make more sense on cost. We keep common replacement parts in stock for Corte Madera customers, which means we are not waiting on a shipment from Texas when your system is down.

Common Commercial Solar Installation Problems We See in Corte Madera Homes

  • Marine layer production loss. Flatland commercial buildings near the 101 corridor sit under a fog blanket that Richardson Bay holds in place until midday. That cuts peak-morning generation and pushes the payback period out by years if the estimate was built on inland California solar data.
  • Mature tree shading. Eucalyptus and Coast Redwood trees planted in the 1950s and 60s now tower over south-facing roof sections on older Corte Madera lots. Installers who skip a shade-analysis report end up with arrays where shaded strings drag down inverter output across the whole system.
  • Wrong tariff assumptions. Interconnection applications filed under standard PG&E net metering assumptions get rejected or delayed because Corte Madera is served by Marin Clean Energy. MCE’s export compensation rates differ, and out-of-area salespeople frequently quote the wrong tariff, which invalidates the true-up statement projections.
  • Structural surprises on older roofs. The shallow hip and low-pitched gable roofs common on Corte Madera’s 1950s to 1970s commercial buildings were not engineered for the added load of racking and panels. We pull structural review when the roof needs it, before installation, not after the permit gets kicked back.

Pricing for Commercial Solar Installation in Corte Madera, CA

Commercial rooftop solar in Corte Madera typically runs $2.90 to $3.80 per watt installed, so a 25 kW system on a small retail building lands around $72,000 to $95,000, while a 100 kW warehouse array runs $290,000 to $380,000. Carport systems run higher, $3.50 to $4.60 per watt, because of the structural steel. Commercial battery storage typically adds $25,000 to $90,000. Your MCE export rate, your actual usage pattern, and your roof’s shading profile all affect the final number. Bring us a bill, Gus will bring you the math. The quote is free, and the price you see is the price you pay. Call (877) 550-6892 for a no-pressure estimate. Take two weeks to think about it. The price will be the same.

Serving Corte Madera, CA - Our Local Coverage Area

We’re based in the Corte Madera area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

We Also Serve Cities Near Corte Madera

Our crews work throughout central Marin, so the same local knowledge that applies to Cort

Why San Jose Chooses Gus's Solar

We set the standard for solar in San Jose.

30-60 Min Response

Fast dispatch across San Jose. Same-day and after-hours emergency service available.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in San Jose

Getting your solar handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your solar needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in San Jose - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local solar pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    A background-checked tech heads outLicensed & insured, typically within 1-hour.
  4. 4
    You approve before work beginsNothing starts until you say go.

What San Jose Customers Say

Trusted by homeowners across San Jose and surrounding areas.

★★★★★

"Gus's own crew did the install. Not a subcontractor who had never met him, which is what the big outfit quoted me and could not tell me who would actually be on my roof."

Aurelia Santibanez · Verified customer
★★★★★

"He modelled it on my actual bill and the current export rates rather than the old ones, and told me plainly that the payback was longer than the door knockers had claimed. Then it came in about where he said it would."

Octavius Redmond · Verified customer
★★★★★

"Production dropped one spring and I did not even notice. Gus rang me, because he watches the monitoring, and had it sorted the same week."

Sunita Balakrishnan · Verified customer

Current Offers

Bring these savings to your next appointment.

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10% Off Your First Service Visit

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Expires Dec 31, 2026
$40

$40 Off Any Repair Over $200

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Free Second Opinion on Any Written Estimate

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No Trip Charge Inside Our Own County

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Senior & Veteran 10% - Always

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