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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.
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AfterFast, Reliable Commercial Solar Installation Across Lewisville
A commercial solar array in Lewisville typically costs $85,000 to $400,000 before incentives, depending on system size and building type. Most Lewisville warehouse and retail installations are completed within 8 to 14 weeks from permit to power-on. If you’re weighing commercial solar for a Lewisville property, call Gus’s Solar at (877) 550-6892. We’ll walk your roof, pull your actual utility history, and give you a straight number, not a brochure guess.
We know Lewisville’s commercial buildings because we work on them. The older industrial strips off Mill Street, the warehouses east of I-35E in 75057, the newer flex spaces along SH-121 near Vista Ridge Mall. Each area has its own electrical age, roof pitch, and hail history. That local knowledge matters when a Zinsco panel from 1978 is hiding behind a warehouse office door and the whole job hinges on swapping it before interconnection.
Why Gus’s Solar Is Lewisville’s Preferred Commercial Solar Installation Company
Gus Petrakis started this company in 2011 and still puts his own name on every bid that leaves the office. No regional sales manager. No call center. When you call about a Lewisville commercial project, you talk to someone who knows what a Federal Pacific panel looks like and why it changes your permit path. Our Commercial Solar Installation team has handled rooftop arrays on flat warehouse roofs throughout the 75057, 75067, and 75077 ZIP codes, and we quote the year-25 output number, not the day-one shiny brochure figure.
Lewisville business owners tell us the same thing: they got burned by an out-of-state outfit that quoted one number on the phone and showed up with another. Gus’s crew is background-checked, uniformed, and does the install with our own hands. We don’t hand your roof to a subcontractor. If something isn’t right, the 90-Day Done Right Promise means one call brings Gus back, in writing, on every commercial job.
Response time to Lewisville is same-day for site visits in most cases. A live person answers the phone 24/7. If a hailstorm tears through overnight and you need a damage assessment before you file the insurance claim, someone will pick up at 3 a.m. and schedule it.
Our Commercial Solar Installation Services in Lewisville
Commercial Rooftop Solar
Flat and low-slope commercial roofs dominate Lewisville’s industrial and retail inventory, especially in 75057 and the older stretches near Business SH-121. We install ballasted and mechanically attached rooftop systems using Qcells or Canadian Solar modules paired with Enphase microinverters. Before we quote anything, we check the roof deck’s load capacity. A 1970s warehouse with original 2×6 rafters and 30-year-old composition roofing often needs reinforcement before panels go up, and we’ll tell you that before the contract is signed, not after the permit is filed.
Warehouse & Industrial Solar
Lewisville’s warehouse stock runs from small flex bays off Valley Ridge Boulevard to big distribution buildings near the rail line and I-35E. These buildings are perfect solar candidates because the roof area is huge and the load is predictable. The catch is electrical age. On a recent Lewisville rooftop install near the historic downtown area, our crew found a 100-amp Zinsco panel feeding a 1973 warehouse. We had to upgrade to 200-amp service before mounting a single Qcells panel. We timed it alongside a hail-damage re-roof so the owner only lost one week of dock operations instead of two separate shutdowns.
Solar Carport Installation
Carports make sense for Lewisville commercial lots where roof space is tight or shade from the building next door cuts into production. Structured steel canopies over parking rows double as covered parking and a clean mounting surface without touching the building’s aging roof. We design for Lewisville’s wind and hail loads, which means heavier gauge steel and engineering stamps that the city’s permitting office actually accepts.
Commercial Battery Storage
In Oncor’s deregulated territory, battery storage changes the math on a commercial solar system. If your retail provider’s buyback rate is weak, a FranklinWH or Enphase battery lets you store afternoon production and discharge during the 4 p.m. to 8 p.m. peak, when the commercial demand charge hits. For Lewisville warehouses running refrigeration or server loads, that demand-charge reduction alone can pay for the battery inside four years.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Lewisville
We install and service equipment from Panasonic, Canadian Solar, JinkoSolar, Qcells, and FranklinWH, among others. We stock common replacement parts and monitoring components locally, which means a failed microinverter on a Lewisville rooftop doesn’t wait a week for a truck from California. If your existing system was installed by someone else and it’s underproducing, bring us a year of production data and we’ll diagnose it. We also offer Free Second Opinion on Any Written Estimate, so if another company quoted you a system, we’ll line-item it against what we’d actually install.
Common Commercial Solar Installation Problems We See in Lewisville
- Legacy electrical panels that kill the permit. Lewisville’s 75057 ZIP has a high concentration of commercial buildings from the 1970s and 80s still running original 100-amp panels. Some of those are Federal Pacific Stab-Lok or Zinsco, brands flagged as fire hazards. Interconnection legally triggers a full panel replacement, which adds $2,000 to $3,500 to the job. We flag it during the first walkthrough, not after the permit office rejects the application.
- Non-Class 4 panels in the hail corridor. Lewisville sits in one of the highest hail-frequency zones in the United States. A standard module that survives its first spring storm in good shape can still get microcracked enough to lose 8% of its output over the next two years. We spec Class 4 impact-rated panels and document the rating for your insurance file. If you’re filing a hail claim anyway, we coordinate the solar install with the re-roof so the insurance check covers part of the mounting prep.
- Retail electric provider chosen without solar in mind. Lewisville is in Oncor’s deregulated market, which means your business picks a retail electric provider separately from the poles-and-wires utility. Some REPs offer true buyback for excess solar production. Others credit you at a fraction of a cent. We walk every Lewisville customer through the REP comparison before we size the system, because a 100 kW array earning near-zero credits is just expensive shade.
- Roof decking that was marginal in 1980 and is failing now. Older commercial roofs in 75057 and along Mill Street were built to code in their day, but that code didn’t account for 40 years of thermal cycling plus the wet weight of soaked composition shingles after a bad storm. We do a core-sample check of the decking during the survey and include any reinforcement in the quote so the number on your contract is the number you pay.
Pricing for Commercial Solar Installation in Lewisville, TX
Here are the numbers we see on Lewisville commercial jobs, as of early 2026:
- Small warehouse rooftop, 25-50 kW: $85,000-$165,000 before incentives
- Mid-size industrial or retail, 50-150 kW: $140,000-$295,000 before incentives
- Commercial carport, per covered bay: $8,500-$14,000 depending on steel gauge and footer depth
- Commercial battery storage from FranklinWH, 15-30 kWh: $18,000-$38,000 installed
- Legacy panel upgrade (100-amp to 200-amp), commercial: $2,000-$3,500 when required in 75057
What moves the number is roof condition, electrical age, and the REP you choose. A 1995 warehouse in 75067 with a 200-amp panel and a good roof is the cheap scenario. A 1978 building in 75057 with a Zinsco panel and low-slope decking that needs reinforcement is the realistic one. We quote off your actual utility bill and the building’s actual condition. Bring me a bill, I’ll bring you the math. Take two weeks. Think about it. The price will be the same. Call (877) 550-6892 for a free estimate and we’ll put the full line item in writing.
We Also Serve Cities Near Lewisville
Our crew covers the corridor along I-35E and SH-121, including Highland Village, Lake Dallas, Flower Mound, and Coppell. If your commercial building sits just outside Lewisville city limits, we can usually add a site visit to an existing route without stretching the timeline. Scheduling is coordinated from the Dallas-Fort Worth office, and Lewisville jobs get local dispatch priority.
Serving Lewisville, TX - Our Local Coverage Area
We’re based in the Lewisville 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 Lewisville
Because that ZIP has a high share of commercial buildings from the 1970s and 80s, many still running original 100-amp panels. Some are Federal Pacific Stab-Lok or Zinsco, which are now flagged as fire hazards. Lewisville code and Oncor interconnection rules won’t let a solar system tie in until that panel is replaced with 200-amp service. That’s a $2,000 to $3,500 line item a lot of out-of-town installers don’t catch until the permit gets flagged. We catch it during the walkthrough and put it in the quote up front. Want a second set of eyes on a quote you already got? We offer a Free Second Opinion on Any Written Estimate. Call (877) 550-6892.
Your retail electric provider, not Oncor, sets your solar buyback rate, and those rates range from near-retail to near-nothing depending on which REP you’re under. In Lewisville, that choice swings the payback period on a 50 kW commercial array by as much as five years. We review your current REP contract and compare it against solar-friendly providers before we size the system, so the production estimate matches what your true-up statement will actually show. Call (877) 550-6892 and bring me a bill. I’ll bring you the math.
Class 4 impact resistance is the minimum we spec for any Lewisville commercial roof. The city sits in the North Texas hail corridor, one of the highest hail-frequency zones in the country, and standard modules that look fine after a storm can develop microcracks that quietly eat production over the following years. Class 4 panels carry a documented impact rating that also simplifies your insurance relationship. If you’re already filing a hail claim on the roof, we can time the solar install with the re-roof so you don’t have two separate shutdowns.
Often, yes. Buildings from the 1970s and 80s in 75057 and along Mill Street were framed and decked to codes that didn’t anticipate the added dead load of a rooftop array, and 40 years of heat cycling plus wet storms has not helped. We core-sample the decking during our survey and tell you what needs strengthening before panels are bolted on. If we find a problem, it’s in the quote. If we don’t, there’s no surprise at permit time. Call (877) 550-6892 to schedule a survey.
Yes, and in Oncor territory it often makes more financial sense than solar alone. A FranklinWH battery bank sized to cover your 4 p.m. to 8 p.m. demand window can cut the commercial demand charge, which is often the single biggest line item on a Lewisville warehouse utility bill. We install the solar and the battery as one job, with one permit path and one warranty conversation. Estimates are free, and the number we quote is the number you pay.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Lewisville’s commercial rooftops since 2011.
Ready to find out what your Lewisville roof can actually produce? Call (877) 550-6892 for a free, no-pressure estimate. We’ll walk it, spec it for hail and panel age, and hand you a written number you can sit with for two weeks. If a salesman needs an answer tonight, the answer is no. We don’t work that way.