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 Houston
Solar panel installation in Houston typically costs $16,000 to $38,000 before incentives for a 7-12 kW system, and most of our Houston jobs move from signed contract to energized system in 6-10 weeks. That timeline depends heavily on CenterPoint Energy’s interconnection queue and whether your home’s existing electrical service clears their review the first time. We’re based right here in Houston, so when you call (877) 550-6892, a live person answers, not a call center in another state. If you’re in the Heights, West University Place, or anywhere inside the 610 Loop, we can usually have a crew out for a site assessment within 3-5 business days.
Why Gus’s Solar Is Houston’s Preferred Solar Panel Installation Company
Gus Petrakis started this company in 2011 and put his own name on the truck. That’s not a marketing line. When a homeowner in the Heights calls about a production issue, Gus is the one who picks up the phone and drives out to look at the inverter. Houston homeowners have dealt with enough door-knockers quoting one number on the porch and another on the contract. We don’t work that way. Your estimate is built from your actual CenterPoint usage history and your current retail electricity plan, because that’s the only honest way to size a system in a deregulated market like ERCOT.
Our Houston customers know our crew by name. We wear uniforms, we’re background-checked, and the people who install your panels are Gus’s own employees, not subcontractors we’ve never met. When a 90-Day Done Right Promise is in writing on every job, you don’t have to wonder who stands behind the work. One call brings Gus back.
We carry L.O.C.A.L. values into every job we take in Houston: Local roots, On time, Community first, Accountable, Loyal. That means we show up when we say we will, we tell you the truth about what a system will and won’t do during a grid outage, and we stay reachable after the install. For 29 years, this company has been the same kind of operation: a real shop with a published address, a license number, and an owner whose name is on the building.
Our Solar Panel Installation Services in Houston
Rooftop Solar Installation
We install rooftop solar on every roof type Houston throws at us: composition shingle, standing-seam metal, tile, and flat TPO. Houston’s housing stock is all over the map, from 1920s bungalows in the Heights to narrow 3-story infill townhomes inside the Loop, and each one needs a different racking and flashing approach. We don’t hand the work off to a sub. Gus’s own crew does the install, flashes every roof penetration properly, and stands behind the roof for the life of the system.

Solar System Design & Permitting
Design in Houston is not a copy-paste job. Because most ERCOT retail providers only pay wholesale buyback rates for exported solar, not true net metering, an array sized to offset 100% of your annual usage can still leave you with a painful true-up statement. We design for self-consumption first. That means looking at your actual interval usage data, your current rate plan, and whether battery storage changes the math. We also handle the full City of Houston permit set and CenterPoint Energy interconnection paperwork in-house, so you’re not chasing down stamps and signatures yourself.

Solar Panel Replacement
If you have panels that are underperforming, delaminating, or simply outdated, we can replace them with Qcells, REC, SunPower, or Panasonic modules and bring the system current with Enphase or SolarEdge inverters. We see a fair number of older Houston systems where hot-spot damage from our summer heat has degraded output 15-25% below the original estimate. Sometimes a panel replacement is the right call. Sometimes the entire array needs to be reconfigured under Houston’s current wind-load standards. We’ll tell you which one you need and why.

Roof-Mount & Tile Roof Solar
Tile roofs in Houston need a different mounting system than composition shingle. We use tile-replacement mounts and dual-flashed stanchions rather than drilling through your tile, because one cracked tile in a Houston downpour becomes a ceiling stain fast. Our crew has done enough tile roofs in Bellaire and West University Place to know exactly how much lift is safe on a 100-year-old Spanish tile profile, and we don’t guess.

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 Houston
We work with Qcells, REC, and SunPower panels, paired most often with Enphase microinverters on Houston homes. The microinverter choice matters here because Houston’s summer heat pushes panel operating temperatures past 140°F, and a single shaded panel on a string inverter drags the whole array down. We stock common replacement parts locally for Houston customers, which keeps repair turnaround short when something does fail. If you already have a system using another brand, call us anyway. We service most major equipment and we’ll give you an honest read on whether it’s worth repairing or replacing.
Common Solar Panel Installation Problems We See in Houston Homes
- Wind-load compliance failures on older racking. Harris County sits in a 130 mph wind-load zone under TWIA standards. Older galvanized racking bolts, especially on homes near the Ship Channel, corrode in the salt air and fail inspection, sometimes forcing a partial re-roof before panels can go up.
- Outdated electrical panels stalling interconnection. A 1920s bungalow in the Heights often still has a 100-amp service panel. CenterPoint Energy’s interconnection review will flag it, and until it’s upgraded to 200 amps, your permit sits in limbo. We handle that upgrade as part of the project.
- Real-world heat derating on undersized systems. Houston’s summer ambient temperatures above 95°F push panel temperatures to 140°F and beyond, cutting output 15-25% during the exact afternoon hours when variable-rate ERCOT plans spike. Systems designed without that derating in mind underperform by August.
- Narrow townhome roofs with almost no usable square footage. The 3-story infill townhomes that went up inside the Loop after 2000 often run 16-20 feet wide with hip roofs. That leaves tiny, awkward panel areas, and HOA shared-wall structures complicate both permitting and interconnection. We solve this with high-efficiency panels and careful engineering, but it’s a real constraint.
Pricing for Solar Panel Installation in Houston, TX
A typical rooftop solar installation in Houston runs $16,000 to $38,000 before the federal tax credit, depending on system size, roof complexity, and whether you’re adding battery storage. A straightforward 7.2 kW system on a composition shingle roof in the 77024 area usually lands around $19,000 to $24,000. A 10 kW system with a battery backup and a panel upgrade on an older bungalow in the Heights will push toward the top of that range. Solar panel replacement typically costs $280 to $520 per panel installed, and a full solar panel removal and reinstall for a re-roof in Houston runs $3,200 to $6,800 depending on array size. We quote the year-25 output, not the day-one brochure number. Bring us a bill, we’ll bring you the math. Call (877) 550-6892 for an exact quote, and take two weeks to think about it. The price will be the same.
We Also Serve Cities Near Houston
Our crews work throughout the Houston metro. We regularly install solar in Bellaire, West University Place, Galena Park, and Jacinto City, and we’re as comfortable with a 1940s bungalow in Bellaire as we are with a new-construction townhome in West University Place. If you’re in any of these areas, you’re getting the same local crew and the same Solar Panel Installation team that works inside the Loop. One phone number, one owner, one standard of work.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 Houston
No. Houston is served by ERCOT, and most retail electricity providers offer buyback rates at the wholesale price, which is often a fraction of what you pay per kilowatt-hour. That means a system sized to offset 100% of your annual usage can still leave you with a large true-up statement at the end of the year. The fix is designing for self-consumption, often with battery storage. Call (877) 550-6892 and we’ll run your actual bill through the math.
Only if you have battery backup and a critical-load subpanel. A grid-tied solar system without a battery shuts off during an outage, by code, so it doesn’t backfeed the grid and endanger line workers. Since February 2021, the first question almost every Houston customer asks us is whether the system will keep their heat running in another freeze. The answer is yes, if it’s designed that way. We pair solar with battery backup and a critical-load subpanel, and for gas-agnostic heat, we often recommend heat-pump mini-splits on the backed-up circuit. That’s a design priority specific to Houston, and we build it in from day one.
Houston’s latitude gives us roughly 5.3 peak sun hours per day, but summer ambient temperatures above 95°F push panel operating temperatures past 140°F, which cuts real-world output 15-25% below the manufacturer’s STC rating. That derating happens during the exact afternoon hours when your air conditioner is pulling hardest and variable-rate ERCOT plans are most expensive. We size systems with Houston’s heat derating baked in, so you’re not surprised in August.
Most of the 1920s and 1930s bungalows in the Heights and surrounding neighborhoods still have 100-amp service panels, and CenterPoint Energy will not approve an interconnection application until the service is upgraded to 200 amps. It’s not a tax. It’s a code requirement, and it’s usually the right call for the house anyway. We recently worked on a 1930s bungalow in the Heights where the homeowner wanted rooftop solar, but the 100-amp panel couldn’t clear CenterPoint’s review. We upgraded to 200 amps, installed a 7.2 kW Qcells system with Enphase microinverters, and added a critical-load subpanel so the heat pump mini-split keeps running if ERCOT calls for rolling blackouts. We’ll tell you up front if your panel needs work before we quote the system.
Harris County requires racking systems engineered to 130 mph wind-load standards under TWIA guidelines. That applies whether you’re in Galena Park near the Ship Channel or further inland in West University Place. It costs a bit more for hardware and engineering, and it’s not optional. We’ve seen older systems fail inspection because galvanized racking bolts near the Ship Channel corroded years ahead of schedule. We spec stainless hardware and coated springs where it matters, and we don’t cut corners on wind-load engineering to hit a lower price.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Houston since 2011.






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