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 Commercial Solar Installation Across Laguna
Commercial solar in Laguna runs on SMUD’s rules, not PG&E’s. That single fact changes your payback math, your permit timeline, and how your system should be sized. Most out-of-area sales reps quote you numbers built on PG&E’s rate structure, and those numbers don’t hold up in 95758. Gus’s Solar has been installing under SMUD’s avoided-cost net metering long enough to know the real numbers. If you’re looking at Commercial Solar Installation for a warehouse, retail building, or office in Laguna, call (877) 550-6892 and we’ll walk you through what actually applies here.
Why Gus’s Solar Is Laguna’s Preferred Commercial Solar Installation Company
Gus Petrakis started this company in 2011 and has kept it owner-operated ever since. That means the name on the truck is the name on the license, and the person you talk to about your Laguna project is the same person who makes the decisions. We don’t hand commercial work off to subcontractors. Gus’s own crew shows up, background-checked and uniformed, and they stay until the system is producing. That matters when you’re dealing with a 120 kW rooftop array or a warehouse with a tile roof that needs specialized flashing.
Laguna sits in SMUD territory, and we have been navigating SMUD’s interconnection queue for over a decade. Out-of-area installers routinely quote PG&E-based permit-to-PTO timelines because that’s what their software defaults to. Then the customer waits weeks longer than promised while the system sits idle. We build SMUD’s actual inspection scheduling into every Laguna quote. The 90-Day Done Right Promise is in writing on every job. If something is not right, Gus comes back and makes it right. That’s the whole promise.
We answer our phones 24/7 with a live person. Not a voicemail tree. Not a ticket portal. If you call at 9 p.m. with a question about your commercial array in Laguna, a person picks up. That’s how we have always run it, and that’s how we will run it when you call (877) 550-6892.
Our Commercial Solar Installation Services in Laguna
Commercial Rooftop Solar
Most Laguna commercial roofs are concrete or clay tile over low-to-moderate-pitch framing, built during the master-planned tract boom between the late 1980s and early 2000s. Tile roofs need tile-specific racking and flashing. You cannot use composition-shingle flashing details on 30-year-old concrete tile and expect it to hold. Our crew carries tile-specific hardware on every Laguna job, and we flash every penetration properly before the panels go up. A typical commercial rooftop system in Laguna ranges from 50 kW to 250 kW depending on your building footprint and SMUD bill.

Warehouse & Industrial Solar
Warehouse solar in Laguna is a different animal from residential. The roof is bigger, the electrical service is older, and the utility math is different. We regularly find panels and service equipment that predate current NEC rapid shutdown requirements, which means a straight panel swap is not code-compliant. We size the inverter and shutdown hardware to your actual electrical service, not a brochure template. If you run a distribution warehouse or light industrial shop along the Laguna Creek corridor, call us and we will come look at what you actually have.

Solar Carport Installation
Carport solar makes sense in Laguna when your building’s roof is too small, too shaded, or structurally limited for the array size your SMUD bill justifies. The flat Central Valley terrain means minimal topographic shading, but your own building and neighboring structures can still block afternoon sun. We design carports to maximize exposure during SMUD’s peak time-of-use window, which here runs late afternoon when west-facing surfaces are gold. Carport systems in Laguna typically run $3.10 to $3.80 per watt before tax credits.

Commercial Battery Storage
SMUD’s avoided-cost net metering pays you far less for exported energy than PG&E’s legacy NEM programs. That means storing your own generation and using it during peak TOU pricing is often the difference between a good project and a great one. We install commercial battery storage from FranklinWH and others, sized to your building’s actual load profile. For a Laguna warehouse running heavy afternoon cooling loads, a battery that covers the 4 p.m. to 9 p.m. window can shift your payback by years. Ask us for the actual numbers off your bill.

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 Laguna
We install and maintain equipment from Qcells, REC, and SunPower, among others. We keep common parts stocked for Laguna customers so a failed optimizer doesn’t mean waiting a week for a truck from a distribution hub in another state. Warehouse HVAC and refrigeration loads run hard in 100°F-plus Sacramento Valley summers, which puts real strain on inverters and connections. When something fails, you want a local crew that can be here fast, not a national outfit routing a dispatch from three states away.
Common Commercial Solar Installation Problems We See in Laguna Homes
- Tile-roof racking failures. Installers use comp-shingle flashing on concrete tile and call it good. Three summers of 105°F thermal cycling later, the flashing cracks, water gets in, and the manufacturer denies the warranty because the install detail was wrong from day one. We cut tile when needed and use tile-specific flashing every time.
- Older panels that don’t meet current rapid shutdown code. A lot of Laguna’s older commercial buildings have panels and service equipment from before rapid shutdown was required. You can’t just drop new panels on old wiring. We bring the system up to current NEC before we sign off.
- SMUD interconnection scheduled after install, not before. Out-of-area installers finish the physical work, then discover SMUD’s inspection queue is backed up. Now you have a finished array producing nothing for weeks. We schedule SMUD’s inspection early in the project so PTO happens right after the final torque check, not a month later.
- Undersized inverters on west-facing warehouse roofs. Here’s a specific Laguna fact: under SMUD’s TOU schedule, west-facing roof planes can outperform south-facing ones because peak pricing lands late afternoon. An installer who sizes your inverter for a generic south-facing profile leaves money on the table. We size against your actual bill and SMUD’s actual rate windows.
Pricing for Commercial Solar Installation in Laguna, CA
Commercial rooftop solar in Laguna typically runs $2.80 to $3.50 per watt before the federal tax credit and any SMUD incentives. So a 100 kW system lands between $280,000 and $350,000. Carport installations run higher, $3.10 to $3.80 per watt, because of the steel structure. Commercial battery storage adds $700 to $1,000 per kWh of capacity depending on brand and chemistry. Those are real ranges we quote from actual Laguna jobs, not national averages. What moves your number: roof condition, tile vs. comp, electrical service age, and whether you want storage. Bring us your SMUD bill. We’ll give you the year-25 output number, not the day-one brochure figure. The price quoted is the price charged. Call (877) 550-6892 for a free estimate.
We Also Serve Cities Near Laguna
Gus’s Solar serves Laguna and the surrounding communities including Elk Grove, Parkway, Florin, and Vineyard. If your commercial property sits near the Laguna Creek corridor or anywhere in the 95758 ZIP, we are close by. For the full picture on our commercial work, see our Commercial Solar Installation hub page or learn more about working with us in Laguna.
Serving Laguna, CA - Our Local Coverage Area
We’re based in the Laguna 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 Laguna
SMUD’s avoided-cost net metering pays less for exported solar than PG&E’s legacy NEM programs, which means your Laguna system should be sized to cover your own daytime load plus storage for the evening peak, not oversized to export a surplus. A commercial system in Laguna that leans heavily on self-consumption with battery storage typically sees payback in 6 to 9 years. A PG&E-sized system that assumes generous export credits would take significantly longer here. Call (877) 550-6892 and bring us a bill. We’ll show you the Laguna math, not the brochure math.
Yes, in most cases. We install on concrete and clay tile regularly, including 1990s-era Laguna tract buildings, using tile-specific hooks and flashing rather than comp-shingle details. We replace broken tiles as needed and flash every penetration. But the roof structure itself has to be sound. If your building has 30-year-old underlayment that is failing, we will tell you that before we put panels on it. A roof that needs replacement should be dealt with first, not after we mount 100 kW of equipment on it.
SMUD’s interconnection queue runs on a different clock than PG&E’s. For a typical commercial project in Laguna, you should plan for 4 to 8 weeks from application to permission to operate, depending on system size and whether your project requires distribution upgrades. The mistake we see constantly is installers scheduling the physical work first and SMUD’s inspection after, which creates idle weeks at the end. We schedule SMUD early. That is how one Laguna project we did hit PTO three weeks ahead of the out-of-area quote the owner had been given.
Not in total annual production, but often in total annual value. SMUD’s peak time-of-use window runs late afternoon into evening, which lines up with west-facing production. South-facing panels make more total energy, but a lot of it lands in midday when SMUD’s rates and avoided-cost credits are lower. For a commercial building with a big afternoon cooling load in the Sacramento Valley heat, west-facing panels frequently beat south-facing on bill savings. We model both against your actual SMUD bill before we recommend an orientation.
For warehouse and industrial buildings in Laguna, we typically install SolarEdge or Enphase systems because their module-level power electronics satisfy rapid shutdown naturally and give per-panel monitoring. That matters on a big flat commercial roof where a single failed panel can go unnoticed for months. Older string-inverter systems can still work, but they need additional rapid shutdown hardware to meet current NEC, and they don’t give you the granular monitoring. Your roof, your bill, and your building’s electrical service determine the right call. Call (877) 550-6892 and we’ll look at all three.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Laguna and surrounding communities since 2011.






Before
After
Before
After
Before
After