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 Repair Across Marble Falls
Solar panel repair in Marble Falls typically runs $180 to $1,400 depending on whether you’re dealing with a loose mount, a failed microinverter, or hail-cracked glass, and our crew can usually be at your door within 24 hours. Marble Falls sits in one of the hail-prone stretches of the Highland Lakes, so we see storm damage, thermal shutdowns, and loose standing-seam mounts more than almost any other repair call. Gus Petrakis founded Gus’s Solar in 2011, and he still answers his own phone. If your system is underproducing or throwing a fault, call (877) 550-6892 and we’ll tell you straight what’s wrong and what it’ll cost to fix.
Why Gus’s Solar Is Marble Falls’s Preferred Solar Panel Repair Company
We’re not a call center. When you call Gus’s Solar, a live person picks up, day or night. That matters in Marble Falls because PEC interconnection rules mean a downed system can’t just be swapped out on a whim, and you need someone who understands co-op paperwork, not just panel wiring.
Our crew works on Marble Falls roofs regularly: downtown limestone-block homes near Main Street, retirement bungalows off FM 2147, lakefront builds in Granite Shoals and around Lake Marble Falls. We know the roof types, the racking, and the failure points. We carry Qcells, REC, and SunPower replacement hardware, plus Enphase and SolarEdge components, so we’re not waiting on a distributor in Austin when your inverter dies in July.
Every repair gets the same 90-Day Done Right Promise we put on full installs. If it’s not right, Gus comes back. No hoops, no ticket queue. One call brings him back.
Our Solar Panel Repair Services in Marble Falls
Inverter Repair & Replacement
In Marble Falls, we replace more west-facing wall-mounted inverters than any other single component. Summer afternoon sun bakes those walls past 120°F surface temp, and the inverter’s thermal limit kicks in repeatedly. Homeowners mistake it for panel failure. It’s usually placement and ventilation. We reconfigure, add shading where possible, or swap the unit and relocate it. Solar Panel Repair on the inverter side typically runs $350 to $1,900 in Marble Falls depending on whether you need a board swap, cooling fix, or full replacement.

Microinverter Replacement
Standing-seam metal roofs are everywhere in Marble Falls now, especially in newer golf-community and lakefront builds. The racking clamps hold, but after a strong wind event, microinverters jostle loose and communication faults start appearing in the monitoring app. A single microinverter replacement runs $280 to $450 in Marble Falls. When multiple units on the same string fail, we check the trunk cable and connectors before throwing parts at it.

Wiring & Connector Repair
Ground-mounted arrays are common here because of the granite and limestone substrate, no good roof face, or both. The problem: post-storm debris piles up behind those arrays, abrading wire insulation and tripping ground-fault errors. We see it in hill-view lots near Granite Mountain every spring. Wiring and connector repair in Marble Falls runs $180 to $650, and we re-route conductors so the same damage doesn’t happen again next season.

Panel Replacement After Damage
Hail in the Marble Falls corridor is a fact of life. IEC 61215 hail-rated panels help, but they’re not indestructible. When three panels crack, output drops unevenly and a string inverter can choke. Replacement of a single damage panel in Marble Falls runs $420 to $950 installed, assuming the racking is intact. We’ll match your remaining array’s spec, or rewire the string with microinverters so one bad panel doesn’t drag down the rest.

Roof Leak Repair Around Mounts
Leaks around roof penetrations are the other big one in Marble Falls. Older composition-shingle homes from the 1990s and 2000s have flashing that’s aged out, and standing-seam clamp mounts occasionally need re-torquing after wind gusts off the lake. If you see water staining inside, call before the next rain. Mount resealing and flashing replacement runs $300 to $900 depending on how many penetrations need work.

Orphaned-System Takeover
Buy a home in Marble Falls with solar already on it, and there’s a solid chance the original installer is out of business or unreachable. We take over those systems: PEC paperwork, monitoring access, repair backlog, the whole thing. You find the dead system, we figure out what it needs. Takeover assessment starts at $190, and we waive that if you proceed with repair.

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 Marble Falls
We work on Qcells, REC, and SunPower panels daily, along with Enphase and SolarEdge electronics. That’s not a brochure list. It’s what’s on the roofs we service around Lake Marble Falls, FM 1431, and the Ridgeline subdivisions. We keep common Enphase IQ-series microinverters and SolarEdge optimizers on the truck so a Marble Falls repair doesn’t wait a week on freight. If you’ve got Panasonic panels or a FranklinWH battery in the mix, we service those too.
Common Solar Panel Repair Problems We See in Marble Falls Homes
- Loose standing-seam mounts after wind events. The clamps are rated, but everything loosens over time with Hill Country gusts off the lake. Loose mounts cause microinverter faults and intermittent production drops that look like panel failure but aren’t.
- West-wall inverters tripping thermal shutdowns. It doesn’t have to be 105° outside for an unshaded west-facing inverter on a limestone or stucco wall to hit its internal limit. Repeated shutdowns wear out power electronics faster. This is Marble Falls-specific because so many roofs face the view, not true south.
- Post-storm debris piled behind ground arrays. Granite ledges don’t shed debris. Leaves, twigs, and hail-broken branches stack up against the back rail and rub wiring bare. Ground-fault errors follow. We re-route and armor the conductors.
- Microcracked panels from hail, underproducing without visible damage. Sometimes the glass doesn’t shatter but the cells behind it crack. Output drops 10-20% and owners don’t notice until a PEC bill spikes or the monitoring app flags a string. We run IV-curve and thermal imaging to find the cracked cells.
Pricing for Solar Panel Repair in Marble Falls, TX
Here’s what we charge in Marble Falls as of this year. A loose mount tightening or reseal starts at $180. Microinverter replacement runs $280 to $450. Wiring and connector repair runs $180 to $650. A single panel replacement after hail runs $420 to $950. Inverter repair runs $350 to $900, and full inverter replacement runs $1,100 to $1,900. Roof leak work runs $300 to $900. We give you the price before we start, and the number on the quote is the number you pay. No trip charge inside our own county, and we’ll come out free for a second opinion on any written estimate another company gave you. Call (877) 550-6892 for a straight answer.
We Also Serve Cities Near Marble Falls
Our crew covers Marble Falls and the surrounding Hill Country. That includes Marble Falls proper plus Lago Vista, Leander, Bee Cave, and Lakeway. If you’re anywhere along FM 1431 or on the lake, we’ll be there, usually same day or next morning.
Serving Marble Falls, TX - Our Local Coverage Area
We’re based in the Marble Falls 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 Repair in Marble Falls
It means the power your panels send back to the grid is worth significantly less than the power you consume from it. PEC credits exported kilowatt-hours at an avoided-cost rate, not the retail rate. So a repaired panel that mostly exports surplus is a worse investment than a repaired panel that offsets your own evening and morning loads. When we scope repairs in Marble Falls, we focus on restoring self-consumption: making sure daytime production actually reduces what you pull from PEC, whether that’s fixing a string, rebalancing panels, or adding a battery instead of just chasing raw output numbers. Call (877) 550-6892 and we’ll look at your PEC bill before we touch a single panel.
Look for fault codes in your monitoring app first, then compare this month’s production to the same month last year. If you’re down more than 10% and the weather has been comparable, something’s wrong. Hail can crack cells behind intact glass, damage bypass diodes, or knock a microinverter offline. We’ll run a thermal scan and IV-curve test on site, usually within a day of your call. If the system is fine but underperforming because of orientation or shading, we’ll tell you that too and not sell you parts you don’t need.
Yes. Standing-seam roofs use clamp-based racking that grips the seams, not lag bolts through the decking. When those clamps loosen after wind events, the panel lifts slightly, microinverters wiggle, and communication faults appear. The fix is re-torquing the clamps to spec, reseating the panel, and re-terminating the microinverter connections. It’s a different skill set than shingle-roof work, and we do it regularly on the lakefront and Ridgeline builds around Marble Falls. The hardware itself rarely needs replacing; the torque and the electrical terminations do.
Because it’s mounted on an unshaded west-facing wall. The air temperature might be 92°, but the wall itself absorbs direct afternoon sun and radiates heat into the inverter’s heatsink, pushing internal temps past the shutdown threshold. We see this constantly on Marble Falls homes where the primary roof faces the view, not the sun, so the inverter got stuck on whichever wall was easiest. The fix is a shade screen, a relocation to a north wall, or a ventilated standoff mount. Expect $350 to $900 depending on whether we’re adding shade or moving the unit, including re-pulling the DC conductors.
Expect the monitoring app to be locked to the former owner or a dead installer. Expect PEC paperwork to be missing or incomplete, which matters if you ever need to re-interconnect. Expect at least one deferred maintenance item: a cracked panel, a leaking mount, a microinverter that’s been offline for six months. We take over orphaned systems in Marble Falls regularly. We re-register the monitoring, sort the PEC documentation, and fix what’s broken. Assessment starts at $190 and rolls into repair cost if we do work. Call us before you close, and we’ll tell you what you’re buying.
Contact Gus’s Solar in Marble Falls
If your solar panels are underproducing, throwing faults, leaking, or just not doing what the seller promised, call (877) 550-6892. A live person answers, 24/7. We’ll tell you what’s wrong, what it costs, and whether it’s worth fixing under PEC’s avoided-cost rates. No signature tonight, no pressure. Bring us a bill, we’ll bring you the math.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Marble Falls and the surrounding Hill Country since 2011.






Before
After
Before
After
Before
After