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 Round Rock
Solar panel installation in Round Rock runs about $2.35 to $2.85 per watt before the federal tax credit, which puts a typical 8 kW system between $18,800 and $22,800. Most Round Rock homeowners see the work done in two to four days once permits clear. If you’re reading this because a door-knocker quoted you one number and the contract said another, call Gus’s Solar at (877) 550-6892. Gus Petrakis puts his name on the truck and his math on your actual utility bill, not a brochure. Take two weeks to think about it. The price will be the same.
Why Gus’s Solar Is Round Rock’s Preferred Solar Panel Installation Company
Round Rock homeowners have been calling Gus’s Solar since 2011, and most of them found us the same way: a neighbor’s system was still producing at spec three years in, or a Teravista homeowner mentioned that the crew who did their install actually answered a phone call in July. That matters here because Round Rock is not Austin. The crews that drive up from the city often don’t know that Round Rock runs its own electric utility. Gus’s crew does. We handle RREU interconnection paperwork weekly, so your permission-to-operate doesn’t stall at the city line.
Our customers in 78665, 78680, 78681, and 78682 consistently tell us the same thing: the quote matched the invoice, and the owner answered when something needed attention. Gus founded the company in 2011 and still answers his own phone. Not a call center. Not a ticketing portal. One live person, 24/7, who knows your roof and your system. That’s the L.O.C.A.L. standard we work by: Local roots, On time, Community first, Accountable, Loyal. It’s not a slogan on a yard sign. It’s how the work gets done.
Our Solar Panel Installation Services in Round Rock
Rooftop Solar Installation
Rooftop solar installation in Round Rock starts with satellite-auditing your actual roof before we ever step on it. The 78665 and 78681 ZIP codes are dense with east-west street grids, and too many installers assume a clean southern exposure exists. In Teravista specifically, the best south-facing planes often sit over garages or get crowded by HVAC pads. We plan around what’s actually there, not what a generic design tool assumes. Gus’s own crew does the install, flashes every roof penetration properly, and handles the mounting on composition shingle roofs that dominate Round Rock tract housing.

Solar System Design & Permitting
Design and permitting in Round Rock is where out-of-town installers lose their shirts. Solar Panel Installation here goes through Round Rock Electric Utility, not Austin Energy and not Oncor. RREU has its own inspection sequence and its own export-rate structure. A designer who’s never filed an interconnection application with RREU will misread the requirements and cost you weeks. We file RREU paperwork on a near-weekly basis. We know which inspection triggers need to be scheduled first, which forms the utility actually reads, and how to sequence the permit so the city inspector and the utility inspector don’t make you wait twice.

Solar Panel Replacement
Panel replacement in Round Rock usually means one of two things: a tree limb from a spring storm cracked the glass on a 2010-era panel, or a homeowner is upgrading because the payback math on newer Qcells or REC panels beats running the old array another five years. We stock common replacement panels and microinverters so Round Rock customers aren’t waiting on a freight shipment from California. Bring us your current system’s spec sheet and a year of utility bills. We’ll show you the year-25 output difference, not a day-one brochure number.

Roof-Mount & Tile Roof Solar
Most Round Rock homes we work on have composition shingle roofs from the 2000s and 2010s, which are straightforward for roof-mount racking. But Forest Creek and parts of Teravista have tile roof sections, and tile demands a different mounting system, different flashing, and a crew that’s done it before. We have. We also coordinate with your roofer when needed. In fact, in Round Rock we regularly bundle roof replacement with solar, because a 2005 roof with two layers of shingle has no business sitting under a 25-year PV system.

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 Round Rock
We work with REC, Qcells, Panasonic, and SunPower panels, paired with Enphase microinverters on most Round Rock residential jobs. The reason is heat. Round Rock’s triple-digit July afternoons push panel surface temperatures far above the 25°C lab rating, and microinverter architecture recovers more of that lost output than string inverter setups do on roofs with partial shading from HOA-required tree buffers. We keep common Enphase components in local stock, so a microinverter fault doesn’t mean a week of silence. It means Gus’s crew comes back, sometimes the same day.
Common Solar Panel Installation Problems We See in Round Rock Homes
- RREU interconnection misfiled by Austin-trained crews. Austin Energy and Oncor have different forms, different export credit language, and different inspection checklists. A crew that’s never dealt with Round Rock Electric Utility files the wrong paperwork and the project stalls at permission-to-operate. We’ve rescued several homeowners from this exact position after a cheap quote went sideways.
- HOA visibility rules in master-planned communities. Forest Creek, Teravista, and similar HOA-governed neighborhoods in Round Rock often restrict street-facing panel visibility. A design that ignores the HOA’s architectural review board gets red-tagged after install. We pull the HOA guidelines before we draw the layout, not after the panels go up.
- Builder-grade composition shingles hitting end of life. A large share of Round Rock homes built between 2000 and 2015 still carry their original shingle roof. Installing a 25-year array on a 20-year roof is bad math. We inspect the roof condition first and coordinate with a local roofer when replacement makes sense before the racking goes on.
- East-west grid layouts wasting the southern exposure. Round Rock’s newer subdivisions were laid out on east-west streets for traffic flow, not for solar. That commonly puts the best south-facing plane over the garage or behind an HVAC condenser. A satellite audit before the site visit catches this and reshapes the array to real production, not a nameplate fantasy.
Pricing for Solar Panel Installation in Round Rock, TX
A straightforward rooftop solar installation in Round Rock typically runs $2.35 to $2.85 per watt, installed, before the 30% federal tax credit. An 8 kW system lands between $18,800 and $22,800. A 10 kW system runs $23,500 to $28,500. Roof replacement bundled with solar adds $12,000 to $18,000 depending on roof condition and square footage. RREU’s export credit structure matters here too. We quote your real offset based on your actual usage history and RREU’s current export rate, not a generic Texas average. Bring me a bill, I’ll bring you the math. The price quoted is the price charged. Estimates are free, and there’s no trip charge inside Williamson County for Round Rock homeowners. Call (877) 550-6892.
We Also Serve Cities Near Round Rock
Gus’s Solar serves homeowners throughout Williamson and northern Travis County. We work regularly in Hutto, Georgetown, Brushy Creek, and Pflugerville, and the same crew that installs your Round Rock system is the crew that comes back if anything needs attention. If you live in one of those communities, call us at (877) 550-6892 for the same straight numbers.
Serving Round Rock, TX - Our Local Coverage Area
We’re based in the Round Rock 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 Round Rock
RREU does not offer the same net metering structure as Austin Energy. Round Rock’s municipal utility uses a different export rate and a different interconnection agreement, with its own inspection triggers and its own approval sequence. A solar design filed under Austin Energy assumptions will get rejected or underperform. That’s the most common delay we see with Round Rock projects that initially went to an Austin crew. We file RREU paperwork regularly and quote your offset using RREU’s actual export rate, not an Austin number. Call (877) 550-6892 for a free estimate based on your real RREU bill.
Teravista’s HOA rules restrict street-facing panel visibility, and many Round Rock HOAs including Forest Creek have similar language. What that means in practice: we design the array for your least-visible roof plane first, and we pull HOA architectural review guidelines before we draw anything. Texas law gives homeowners certain solar access rights, but HOA aesthetic restrictions on visible panels still get enforced in master-planned Round Rock communities. We handle the HOA submission for you. Call (877) 550-6892 and we’ll check your specific HOA’s solar language before you spend a dime.
A 2005 Round Rock composition shingle roof is typically near its practical end of life, and installing solar on it usually means a roof replacement within five years anyway. That’s a $12,000 to $18,000 surprise most national installers don’t mention until after you’ve signed. We inspect the roof during the estimate and tell you straight if the shingles will make it or if bundling roof replacement with solar is the better financial move. In Teravista, we recently handled a 2008 tract home this exact way: full roof replacement first, then a 10.8 kW REC system with Enphase microinverters, and the math worked because the customer wasn’t paying for a panel remove-and-reinstall three years later. Call (877) 550-6892 for an honest roof assessment with your solar quote.
Round Rock averages over 220 sunny days a year, but prolonged July and August afternoons above 100°F push panel surface temperatures well beyond the 25°C lab standard, and that heat penalty cuts real-world output by 8% to 15% depending on the panel and mounting setup. We design Round Rock systems using heat-adjusted production numbers, not nameplate ratings. We also favor microinverter architectures here because they recover more output on hot roofs with partial shading than string inverters do. The year-25 output number we quote already accounts for Round Rock heat. That’s the only number that matters. Call (877) 550-6892 for a heat-adjusted estimate built from your actual roof orientation.
No, a battery is not required for interconnection, but Round Rock homeowners on the ERCOT grid remember Uri. After February 2021, most of our Round Rock conversations include battery backup because the grid isolation is real, and a solar array without a battery goes dark when the grid drops. We install Enphase and FranklinWH battery systems alongside solar, and we size the battery to your critical loads, not a generic whole-home number. If backup during the next freeze matters to you, we’ll show you the cost difference and let you decide. No pressure. Call (877) 550-6892 to talk through battery sizing with your solar quote.
Gus Petrakis has been putting his name on solar work since 2011, and Round Rock homeowners know him as the guy who answers his own phone and quotes real numbers from your actual RREU bill. If a salesman needs an answer tonight, the answer is no. Take two weeks. The price will be the same. Call (877) 550-6892 for a free estimate, or ask for Gus directly.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Round Rock and surrounding communities since 2011.






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