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

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

Professional commercial solar installation services in Brea, CA. Licensed & insured. Same-day and after-hours emergency service available.

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Every visit starts with

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

Your own solar system for as low as $79/month*on approved credit; ask for current terms
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

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Fast, Reliable Commercial Solar Installation Across Brea

Commercial solar installation in Brea typically runs $85,000 to $240,000 for warehouse and industrial rooftop systems, with most projects reaching operation within 6 to 12 weeks of permit approval. We serve every Brea ZIP code (92821, 92822, 92823) with our own background-checked crew, not subcontractors. If you’re looking at rising SCE demand charges on a warehouse off Lambert Road or a strip mall near Brea Boulevard, call (877) 550-6892 and bring us a bill. Gus will give you the year-25 math off your actual usage, not a brochure number.

Call (877) 550-6892

Why Gus’s Solar Is Brea’s Preferred Commercial Solar Installation Company

Gus Petrakis founded this company in 2011 and puts his own name on every truck, every quote, and every warranty. When a Brea business owner calls, a live person answers. Not a voicemail, not a call center. That matters when your inverter throws a fault code on a Saturday morning and you need someone who actually knows where your building is.

Our Commercial Solar Installation team has walked more Brea rooftops than we can count. We know which 92821 warehouses still sit on original 1960s roof membranes, and we know which Carbon Canyon hillside lots get hammered by December shading from the Puente Hills ridgeline. That’s local knowledge no satellite-based sales pitch can fake.

Brea business owners tell us the same thing: a national outfit quoted one number over the phone, then changed it after the site visit. We don’t run that play. The price Gus quotes is the price charged, and it’s built off your real utility bill and a real site walk. Take two weeks. Think about it. The price will be the same.

Every commercial job carries our 90-Day Done Right Promise in writing. If something isn’t right, one call brings Gus back. That’s the standard, and it’s been the standard for over a decade.

Our Commercial Solar Installation Services in Brea

Warehouse & Industrial Solar

Brea’s flatland warehouse district along Lambert Road and Imperial Highway is dense with 1960s to 1980s tilt-up buildings. Most have flat roofs with aging membrane systems, which changes how a solar rack gets installed. We inspect roof cores before any ballasted racking goes down. A poorly flashed penetration leaks first after a heat wave, and Brea gets heat waves. A typical warehouse rooftop system in Brea runs $110,000 to $240,000 depending on roof square footage and panel count.

Warehouse & Industrial Solar

Solar Carport Installation

Solar carports solve two Brea problems at once: shaded parking for employees and customers, plus clean generation without touching an aging roof. On Carbon Canyon Road-area properties (92823), carport placement is decisive. A carport set on the south edge of a lot can cut annual production by 30% if the design ignores December azimuth and the Puente Hills ridgeline shadow. We model winter light before we quote. Carport systems in Brea typically run $75,000 to $180,000. Call (877) 550-6892 for a site-specific number.

Solar Carport Installation

Commercial Battery Storage

Brea commercial customers on Southern California Edison time-of-use rates save the most when battery storage shifts solar production into the 4 p.m. to 9 p.m. peak window. We install FranklinWH, Enphase, and Tesla Powerpack configurations sized to your building’s actual load profile. A commercial battery system in Brea typically adds $40,000 to $90,000 to a solar project, and it’s often the difference between a utility-approved interconnection and a rejection. If you run refrigeration or manufacturing, battery backup keeps you running through a PSPS event or a grid fault. We ask for 12 months of interval data from your smart meter, then show you the year-25 payback with and without storage.

Commercial Battery Storage

Agricultural & Ground-Mount Solar

Brea isn’t orchard country anymore, but a handful of ranch properties and equestrian parcels remain along Carbon Canyon and the eastern edge of the city. Ground-mount systems on open land avoid roof constraints entirely, and we can angle panels to maximize winter production on shaded hillsides. Ground-mount arrays in Brea generally run $70,000 to $150,000 depending on terrain and trenching distance to the meter.

Agricultural & Ground-Mount Solar
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 Brea

We work with Qcells, REC, and Panasonic panels, paired with Enphase microinverters and SolarEdge optimizers where the site calls for them. Why these brands? Because Qcells and REC panels hold their output better than budget alternatives, and we quote the year-25 output, not the day-one brochure number. We also stock common replacement parts locally so a Brea business isn’t waiting on a shipment from Texas when an inverter needs attention. That’s the difference between a shop with a published address and a sales crew that vanishes after the paperwork clears.

Common Commercial Solar Installation Problems We See in Brea

  • Aging roof membranes under ballasted racking. Brea’s 1960s to 1980s warehouses often still sit on their original roofing. A rack system adds weight and penetrations. If the membrane is past its service life, we recommend re-roofing or a carport alternative before panels go up.
  • December ridgeline shading in 92823. Hillside warehouses off Carbon Canyon Road lose 25 to 40 percent of winter production when the Puente Hills block low southern sun. Satellite-only modeling misses this entirely. We walk the roof in December light before quoting.
  • 100-amp commercial panels failing interconnection review. Older Brea strip malls and small commercial buildings often still run 100-amp services. Add EV charging load and the utility rejects the application until a service upgrade or battery storage is part of the plan. We catch this before you pay permit fees.
  • String inverter systems degrading below 20 percent output. On a warehouse off Lambert Road, we replaced a 2008 string-inverter system whose panels had degraded past 20 percent of rated output. The owner’s true-up statements showed three straight years of rising kWh shortfalls that never matched the original production estimate. We mapped the flat roof for a Qcells and Enphase microinverter layout and up-sized the panel count to hit a 98 percent offset.

Pricing for Commercial Solar Installation in Brea, CA

Here’s the straight answer. A warehouse rooftop system in Brea runs $110,000 to $240,000. A solar carport ranges $75,000 to $180,000. Commercial battery storage adds $40,000 to $90,000. A small retail or office rooftop system for a strip mall unit typically lands between $45,000 and $85,000. What moves the number: roof condition and membrane age, panel count, inverter architecture, whether you need a service upgrade, and how much December shading affects your site. We don’t quote off a satellite image. We send Gus’s crew to walk your roof, check your panel, and read your meter. Then you get a written price that holds. Estimates are free. Call (877) 550-6892 and bring us a bill. The math takes about 20 minutes.

We Also Serve Cities Near Brea

Beyond Brea, our Commercial Solar Installation in Brea team regularly serves Placentia, Rowland Heights, Fullerton, and Yorba Linda. Same crew, same 24/7 live phone answer, same 90-Day Done Right Promise. If your business sits just over the city line, the process is identical. Call (877) 550-6892 and we’ll be there.

Serving Brea, CA - Our Local Coverage Area

We’re based in the Brea 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 - Commercial Solar Installation in Brea

Why Brea Chooses Gus's Solar

We set the standard for commercial solar installation in Brea.

30-60 Min Response

Fast dispatch across Brea. 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 Brea

Getting your commercial solar installation handled is simple and fast.

1

Call or Request a Free Estimate

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

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Brea - 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 commercial solar installation 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 Brea Customers Say

Trusted by homeowners across Brea and surrounding areas.

★★★★★

"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
★★★★★

"My previous solar company went out of business and left me with an array nobody would touch. Gus took the system over, replaced two dead microinverters, and it has run properly since."

Ferdinand Kaltenbrunner · Verified customer

Current Offers

Bring these savings to your next appointment.

10%

10% Off Your First Service Visit

Valid on your first completed service visit with us.

Expires Dec 31, 2026
$40

$40 Off Any Repair Over $200

Expires Dec 31, 2026
Free

Free Second Opinion on Any Written Estimate

Expires Dec 31, 2026
Free

No Trip Charge Inside Our Own County

Expires Dec 31, 2026
10%

Senior & Veteran 10% - Always

Expires Dec 31, 2026

Ready for Commercial Solar Installation in Brea?

Call now for a free estimate - or request one below. Licensed, insured, and here with fast after-hours help in Brea.

(877) 550-6892

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