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 Solar Panel Installation Across Lewisville
A rooftop solar system on a Lewisville home typically costs between $18,500 and $31,000 before the federal tax credit, with most 75057 homes landing closer to the high end because of electrical panel work installers in newer suburbs never have to mention. Gus’s Solar handles the whole job, from the first bill-based quote to the day Oncor approves your interconnection, and we finish most Lewisville installs within 6 to 9 weeks of permit submission. Call (877) 550-6892 and you’ll get Gus or a member of his crew, not a call center. We know exactly what 1970s-era wiring, aged roof decking, and North Texas hail do to a solar project, because we’ve been untangling those problems in Lewisville longer than most of the door-knockers have been in business. Our Solar Panel Installation team works from your actual utility bill, not a brochure, and we’ll tell you the real 25-year numbers before you sign anything.
Why Gus’s Solar Is Lewisville’s Preferred Solar Panel Installation Company
Founded in 2011 by Gus Petrakis, this is an owner-operated shop with a published address, a license number, and a name on the truck that matches the name on the phone. When a Lewisville homeowner calls about a quote, Gus sometimes answers the phone himself. That’s the difference between us and the out-of-state outfits that run a booth at the Lewisville Western Days festival and vanish by the following spring. Our 90-Day Done Right Promise is in writing on every job: if it isn’t done right, Gus makes it right. No arbitration clause. No third-party warranty company. Just one call.
We work throughout the Lewisville area, and our crews know the difference between a 1978 ranch in 75057 and a 2005 two-story in 75077 before we ever climb onto the roof. That local knowledge changes how we size a system, what inverter we recommend, and whether we flag a panel replacement before it stalls your permit. Our crew did a rooftop install in the Old Town neighborhood near downtown Lewisville not long ago, on a 1981 ranch-style home. We replaced an original Zinsco panel before Oncor would even look at the interconnection request, then switched from microinverters to a SolarEdge inverter with rapid shutdown once we saw how much heat the low-slope roof was holding. The homeowner’s 25-year payback math only worked after we walked them through true-up statement timing with a buyback-friendly retail electric provider. That’s the kind of thing a national quote sheet misses. We don’t.
Background-checked, uniformed technicians do the actual install. We flash every roof penetration properly, which matters on Lewisville’s older composition shingles. And if your system throws a fault code at 10 p.m. on a Tuesday, a live person answers the phone. At Gus’s Solar, the L.O.C.A.L. values aren’t a wall poster. Local roots, On time, Community first, Accountable, Loyal. Gus put his name on the building. He stands behind the work.
Our Solar Panel Installation Services in Lewisville
Solar Interconnection & Utility Approval
This is where Lewisville jobs get complicated fast. In the 75057 ZIP code, homes built in the 1970s and early 80s often still have original Federal Pacific Stab-Lok or Zinsco electrical panels, the brands flagged for fire risk and the brands Oncor interconnection inspections are most likely to reject. Our team identifies these panels during the initial site visit, before you’ve committed to anything, and we quote the $2,000 to $3,500 replacement cost upfront instead of surprising you mid-permit. Then we handle the Oncor paperwork, the meter swap, and the final sign-off.

Rooftop Solar Installation
Most Lewisville solar arrays go on composition shingle roofs with moderate to low slopes, especially in the older neighborhoods around Main Street and Mill Street. We size the system off your last 12 months of actual kWh usage, not a generic “average home” assumption. Because Lewisville sits in the North Texas hail corridor, we also spec panels with Class 4 impact ratings and walk you through what that means for your homeowners insurance.

Roof-Mount & Tile Roof Solar
Tile roofs are less common in Lewisville than they are further south, but a few streets in the Castle Hills and The Lakes neighborhoods have them. Tile work requires specific mounting hardware and a crew that won’t crack tiles walking the ridge. Our team has done enough tile roof installs in Lewisville to know which flashings hold and which ones leak after the first hailstorm. If your roof is original to a 1970s home, we’ll also check the decking before we commit to a mount design.

Solar Panel Removal & Reinstall
Hail damage means re-roofs. A lot of them. In Lewisville, the smartest time to install solar is often right after your insurance adjuster approves a new roof, because the panels need to come down before the shingles do. We remove the array, store it safely, and reinstall it once the roofer is done. If you already have panels and a storm cracked a few, we replace and remount those too. Scheduling removal and reinstall around a roof crew is standard work for us here.

Solar Panel Replacement
Panels don’t last forever, and North Texas heat shortens their productive life faster than the datasheet might suggest. If your Lewisville system is 10 to 15 years old and output has dropped noticeably, we’ll test each panel, identify the underperformers, and replace them without forcing you into a full system swap. For Lewisville homeowners on 200-amp panels with good roof decking, a targeted replacement often makes more financial sense than a full redo.

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 Lewisville
We install and service equipment from Enphase, Tesla, SolarEdge, and FranklinWH, among others. We’re not tied to one manufacturer, which means we can match the inverter and battery to your roof, your panel, and your actual usage pattern instead of pushing whatever’s on the truck. We also keep common parts in the metro area, so a failed microinverter on a Lewisville home doesn’t mean waiting three weeks for a part to ship from California. If you’re adding battery storage to an existing system, our techs can integrate FranklinWH or Tesla Powerwall with your current inverter setup.
Common Solar Panel Installation Problems We See in Lewisville Homes
- Original Zinsco or Federal Pacific panels failing interconnection inspection. Oncor will not approve a solar interconnection on a panel it deems unsafe. In the 75057 ZIP, this is the single most common delay we see, and it adds $2,000 to $3,500 to the job if it isn’t caught early. We catch it on the first visit.
- Thermal derating on hot, low-slope roofs. Lewisville’s July highs routinely hit 100°F, and dark composition shingles from the 1970s and 80s hold that heat. Panels lose output as they get hotter, so we adjust the production estimate for real roof temperatures instead of the lab-tested numbers on the datasheet.
- Hail damage to existing arrays or roof penetrations. Spring storms bring golf-ball hail, and even Class 4 panels can lose a fight with an especially violent cell. We inspect for microcracks and loose flashings after big storms, and we’ll document the damage for your insurance claim.
- Poor buyback rates from unqualified retail electric providers. Lewisville is in Oncor’s deregulated market, so the provider you choose for solar buyback credits matters enormously. We walk every customer through which retail electric providers actually credit solar generation at a fair rate. Skip that step and your true-up statement will disappoint you, even if your system is producing exactly as designed.
Pricing for Solar Panel Installation in Lewisville, TX
| Item | Typical Range in Lewisville |
|---|---|
| Full rooftop solar system (6-10 kW) | $18,500 - $31,000 installed |
| Electrical panel upgrade (if required by Oncor) | $2,000 - $3,500 |
| Solar panel removal & reinstall (for re-roof) | $1,800 - $3,200 depending on array size |
| Solar panel replacement (per panel) | $350 - $550 installed |
| Inverter replacement (SolarEdge or Enphase) | $1,800 - $3,400 |
Those are honest Lewisville ranges, and they account for the older housing stock we actually work on here. If you live in a 1970s ranch in 75057, the panel upgrade is a real cost, and we’ll tell you that on the first phone call, not the week before your permit gets denied. For a line-item quote based on your actual utility bill and roof, call (877) 550-6892. Estimates are free. Bring me a bill, I’ll bring you the math. And take two weeks to think about it. The price will be the same.
We Also Serve Cities Near Lewisville
We work regularly in Highland Village, Lake Dallas, Flower Mound, and Coppell, along with the neighborhoods throughout Lewisville. If you’re in one of these neighboring communities or anywhere in the 75029, 75057, 75067, or 75077 ZIP codes, the same crew and the same 90-Day Done Right Promise apply.
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 - Solar Panel Installation in Lewisville
Yes, in most cases, Oncor will not approve interconnection on a home with an original Zinsco or Federal Pacific panel. You should plan for a $2,000 to $3,500 panel upgrade to 200-amp service before your solar system can go live. Our team identifies these panels during the first site visit, so you know the full number before any paperwork starts. Call (877) 550-6892 and we’ll check your panel’s brand and condition at no charge.
Yes, coordinating your solar install with an insurance-covered re-roof is the smartest timing in Lewisville, because it avoids paying for a panel removal and reinstall twice. If your roof needs new decking or shingles after hail, the solar mounts and flashings can be integrated while the roof is open. We work directly with your roofer to sequence the work.
The best buyback plans in Lewisville change frequently, but as of now, providers like Green Mountain Energy, Rhythm, and a few smaller REPs offer competitive solar buyback rates in Oncor territory. We review current plan terms with every Lewisville customer before they sign with a provider, because a bad buyback rate can erase half your savings. Call (877) 550-6892 and we’ll tell you which plans actually credit solar generation fairly, with no fee for the advice.
On a hot, low-slope composition shingle roof in Lewisville, expect real-world output around 8% to 12% below the manufacturer’s rated production, because thermal derating is significant at 100°F+ rooftop temperatures. I quote the year-25 output, not the day-one brochure number. A well-designed system on a Lewisville home should still offset 85% to 95% of your annual usage, but the sizing has to reflect local heat, not a lab number.
It can. If your roof is being fully stripped and redecked, that’s the best time to run conduit and install roof penetrations, and it may make a string inverter setup with rapid shutdown more cost-effective than microinverters. For 1970s and 80s homes in the 75057 ZIP, a SolarEdge inverter with power optimizers often makes the most sense, because it handles partial shading and high heat better on those older rooflines. We’ll evaluate your specific roof once the decking is exposed and give you a straight recommendation.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Lewisville since the company was founded in 2011.






Before
After
Before
After
Before
After