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 San Dimas
Most San Dimas homeowners can have rooftop solar installed within four to six weeks of their first call, and a residential system here typically runs between $14,000 and $26,000 before the federal tax credit. We serve the entire 91773 zip code, from the neighborhoods off Arrow Highway to the foothill streets near San Dimas Canyon Road. Gus Petrakis founded this company in 2011 and put his own name on it because he believed San Dimas deserved a solar installer that would still be around when the system hit year ten, year fifteen, year twenty-five. Call (877) 550-6892 and a live person picks up, any hour.
Why Gus’s Solar Is San Dimas’s Preferred Solar Panel Installation Company
We are not a national outfit running a satellite crew through your neighborhood. We are San Dimas solar installers who know that your July electric bill from Southern California Edison is probably your highest of the year, and that the inland heat pushing your AC past 100°F is exactly why solar pencils out faster here than it does in Pasadena or Glendora. Gus Petrakis answers his own phone. His address and license number are published. He does not disappear after the paperwork clears.
Homeowners around Lone Hill Avenue and Via Verde tell us the same thing: they were burned by a door-knocker who quoted one number on the porch and a different number in the contract. That does not happen with us. The price Gus quotes is the price you pay, and he builds the math off your actual SCE bill, not a brochure estimate. If a salesman needs an answer tonight, the answer is no. Take two weeks. Think about it. The price will be the same.
Our crew works the same streets you drive every day. We know which San Dimas homes still carry original 100-amp service panels that SCE will flag during interconnection, and we tell you about it before it becomes a surprise change order. That is the difference between a company that knows San Dimas and one that just schedules a truck.
Our Solar Panel Installation Services in San Dimas
Rooftop Solar Installation
Gus’s own background-checked, uniformed crew handles every rooftop install in San Dimas. No subcontractors. Most of the homes here are single-story ranch and split-level builds from the 1960s through the 1980s, which means straightforward roof access and composition shingle mounting that goes smoothly when the flashing is done right. We flash every penetration properly and pressure-test before we call the job done.

Solar System Design & Permitting
Designing a system for a San Dimas roof is not the same as designing one for a flat suburban lot in the basin. Homes along the northern edge near San Dimas Canyon Road sit close enough to the San Gabriel ridgeline that winter afternoon mountain shading can wipe out meaningful production. We run a full horizon shading analysis before we ever file permits, because a rooftop-only survey misses that loss, and you would be signing a 25-year decision based on bad math. Permitting through the city of San Dimas and interconnection with SCE is handled start to finish by our team.

Solar Panel Replacement
If your existing array is underperforming or panels have failed, we replace them without disrupting the rest of your system. Many early-2000s installs across San Dimas used panels that are now well past their useful output curve. We match new panels to your existing inverter or recommend a full inverter swap if the old string setup is the real bottleneck. A panel replacement on a typical San Dimas roof runs $800 to $2,200 per panel depending on brand and roof access.

Roof-Mount & Tile Roof Solar
San Dimas has a fair number of concrete and clay tile roofs, particularly on custom homes in the foothill edges. Tile roof solar requires a different mounting approach than shingle, and doing it wrong means cracked tiles and leaks. Gus’s crew mounts on tile without damaging the roof, and the 90-Day Done Right Promise covers every penetration we make. If it is not right, one call brings Gus back.
We also handle Solar Battery Storage & Backup in San Dimas for homeowners who want to keep the fridge and AC running when SCE shuts off power during fire weather. And once your panels are up, our Solar Panel Cleaning in San Dimas service keeps dust and foothill debris off the glass so your production stays where it should be.

What happens when you call
- 1
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 San Dimas
We install and service equipment from Qcells, REC, and SunPower, and we stock common replacement parts locally so San Dimas customers are not waiting on a freight shipment from a distribution hub in another state. Whether you want a Qcells panel built for long-term degradation resistance, a REC panel with strong heat performance, or a SunPower system with a name that carries weight at resale, Gus will give you straight numbers on each and tell you which one makes sense for your roof. We also service existing systems with Enphase and SolarEdge inverters, which covers most of the arrays already installed across San Dimas.
Common Solar Panel Installation Problems We See in San Dimas Homes
- Undersized main panels. A large share of San Dimas homes built between 1960 and 1985 still have original 100A or 125A service panels. SCE will not approve interconnection for a modern solar-plus-storage system on a 100A panel in many cases, which means a main panel upgrade is required before the array goes live. We catch this during the design phase and quote the upgrade honestly instead of surprising you mid-install.
- Heat-related production loss. San Dimas regularly hits 110°F during summer heat events, and panel efficiency drops as temperatures rise. A system sized correctly for coastal conditions will underperform here. We size for inland heat and run realistic year-25 output projections instead of day-one brochure numbers.
- Wildland-Urban Interface permitting complexity. Homes along the northern foothill edges fall inside fire hazard zones that add permitting requirements for solar arrays, including specific setback and conduit requirements. We handle those extra steps, but we want you to know they exist. A company unfamiliar with San Dimas fire zone rules will lose weeks in review or get flagged mid-install.
- Winter mountain shading. The San Gabriel ridgeline casts afternoon shade on north and northeast-facing roofs in winter, especially near San Dimas Canyon Road. Rooftop-only surveys miss this entirely. Our full horizon shading analysis quantifies the loss so the payback math is real, not optimistic.
Pricing for Solar Panel Installation in San Dimas, CA
A typical rooftop solar installation in San Dimas runs between $14,000 and $26,000 before the 30% federal tax credit and any applicable SCE rebates. Smaller systems on modest ranch homes can come in closer to $12,000, while larger arrays paired with battery storage on bigger foothill properties can pass $35,000. Main panel upgrades, when required, add $3,000 to $5,500 depending on the existing service and the size of the upgrade. Solar panel replacement in San Dimas runs $800 to $2,200 per panel. Removal and reinstall for a re-roof runs $2,000 to $5,000 depending on array size and roof pitch.
We quote the year-25 output, not the day-one brochure number. Bring Gus a bill and he will bring you the math. Estimates are free, and there is no trip charge anywhere in our own county. Call (877) 550-6892 for an exact quote on your home.
We Also Serve Cities Near San Dimas
Our crews work across the eastern San Gabriel Valley and the Pomona Valley. If you live in Charter Oak, La Verne, Pomona, or Glendora, the same owner-operated crew and the same warranty terms apply. We coordinate scheduling and dispatch from our LA office, but the people on your roof know these foothill communities because they drive them every week.
Serving San Dimas, CA - Our Local Coverage Area
We’re based in the San Dimas 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 San Dimas
Most rooftop installations in San Dimas are completed four to six weeks after your first call, but that timeline depends heavily on permitting through the city and interconnection approval from SCE, which can slow things down for homes in the Wildland-Urban Interface fire zones along the northern foothills. We handle all paperwork and keep you updated at each step. Call (877) 550-6892 and we will give you a realistic timeline for your specific address.
We serve the entire 91773 zip code, including neighborhoods near Arrow Highway, Lone Hill Avenue, Via Verde, and the foothill streets around San Dimas Canyon Road. No trip charge applies anywhere inside our own county, and we schedule service across San Dimas six days a week.
If your system is down or throwing an inverter fault that is killing production, we can come out. A live person answers our phone 24/7, and we offer $40 off any repair over $200 for San Dimas homeowners. Call (877) 550-6892 and tell us what the inverter display reads. We will tell you honestly whether it is urgent or can wait.
Equipment costs are essentially the same across LA County. What changes the math in San Dimas is your higher solar irradiance compared to cities just 20 miles west, and your SCE tiered rates, which make offsetting your own usage more valuable than it is in LADWP territory. A typical San Dimas system pays for itself two to four years faster than an identical setup in a marine-layer city. We will show you the year-25 numbers on your actual bill.
Every solar job is backed by Gus’s 90-Day Done Right Promise in writing. If it is not right, one call brings Gus back. Panel and inverter warranties come from the manufacturer, and we register them for you at installation. We also monitor your system after it goes live, and Gus is the one who calls you if production drops, not an automated email.
Call Gus’s Solar for a Free San Dimas Estimate
If you are tired of door-knockers and out-of-state installers quoting one number and charging another, call (877) 550-6892. Bring Gus a bill and he will bring you the math. Take two weeks. Think about it. The price will be the same. No pressure, no signature tonight, just straight answers from a local owner who has been doing this since 2011 and puts his name on every job. Serving San Dimas, Charter Oak, La Verne, Pomona, and Glendora with honest solar work and a live person on the phone any hour.
Written by Gus Petrakis, Owner at Gus’s Solar, serving San Dimas since 2011.






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