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.
Solar Services in Exeter, CA
If you’re calling around Exeter for solar, you probably want a straight number and a real person, not a brochure and a follow-up call from an out-of-state sales floor. That’s what we do. Gus’s Solar is owner-operated, Gus Petrakis puts his name on the truck, and when you call (877) 550-6892, a live person answers - not a voicemail, not a ticketing queue, not a call center three states away. We serve Exeter and the 93221 ZIP directly, and most quotes get scheduled within a couple of days. You’ll get honest numbers built off your actual utility bill, and a written promise that if it’s not done right, we make it right.
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.
Why Exeter Homeowners Choose Gus’s Solar
Exeter’s a small town, and word travels. People around here don’t want a door-knocker with a laminated pitch; they want the name of someone their neighbor used and would use again. That’s the position we’ve held since Gus founded the company in 2011. His license number is published, his address is on the building, and his name is on every job we do. He’s the one who shows up when something goes wrong, and he’s the one who answers when you call.
We’ve worked on homes near Rocky Hill and along the citrus-packed acres off Highway 65, and we hear the same thing from people off Belmont Avenue and up around the older ranch neighborhoods near the high school: the national outfits quote one number on the phone, then change it at the door. We don’t do that. The price we quote is the price you pay. And because our own background-checked, uniformed crew does the install - we don’t hand work off to a sub - the quality stays consistent from the first roof penetration to the final inspection.
Every solar job is backed by the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Gus back. That’s the standard, and it’s been the standard since day one.
Solar Services We Offer in Exeter
Solar Panel Installation
We design systems around your actual usage, not a generic average. For Exeter homes with older 100-amp panels, we’ll tell you upfront whether a panel upgrade is part of the job before you sign anything.
Learn more about our Solar Panel Installation in Exeter.

Solar Battery Storage & Backup
Battery backup matters here because the Valley grid strains hard in summer, and outages during triple-digit heat are no joke. We install battery systems sized to your real overnight loads, working with brands like Enphase and FranklinWH.
Learn more about our Solar Battery Storage & Backup in Exeter.

Solar Panel Cleaning
Valley dust and citrus pollen settle on panels fast, and dirty panels lose measurable output. Our cleaning crew handles residential and agricultural arrays without you climbing a ladder.
Learn more about our Solar Panel Cleaning in Exeter.

EV Charger Installation
More Exeter households are adding electric vehicles, and a Level 2 charger makes sense when you’re already producing your own power. We’ll wire the charger and integrate it with your existing panel or solar system.
Call (877) 550-6892 to talk through what your garage or carport needs.

Solar Panel Maintenance & Monitoring
Gus monitors systems proactively. When production dips or an inverter faults, we call you - you don’t have to chase us. Annual checkups catch wiring and mounting issues before they become bigger problems.
Most maintenance visits in Exeter are scheduled within a few days of your call.

Solar Panel Repair
If your system is underperforming or an inverter is throwing codes, we diagnose and fix it. We see a lot of older installs in Exeter where the original installer is long gone. We repair those too.
Call (877) 550-6892 and describe what you’re seeing. We’ll tell you over the phone whether it sounds urgent.

Commercial Solar Installation
Exeter’s packing sheds, cold storage facilities, and ag-support businesses have heavy daytime loads that align well with solar production. We design commercial arrays around your real operating hours and utility rate schedule.
Call for a site walk and an honest production estimate built off your usage data.

Neighborhoods We Serve in Exeter
We work all across Exeter and the surrounding citrus country. Response time for most service calls inside the 93221 ZIP is typically same-day or next-day, depending on the season and the nature of the issue.
- Homes near Rocky Hill Drive and the foothill edges on the east side
- The older ranch neighborhoods around Belmont Avenue and the downtown grid
- Properties off Highway 65 and the county roads running toward the packing houses
- Larger ag parcels with detached outbuildings and secondary electrical service
Why Exeter’s Climate & Housing Affect Solar
Exeter sits square on the San Joaquin Valley floor, and that shapes every solar quote we write here. The tule fog season, from roughly December through January, is among the densest in the nation. It suppresses solar production for days or weeks at a stretch, which means a proposal built purely on peak summer numbers overpromises and underdelivers. We quote the year-25 output, not the day-one brochure number, and we adjust for the fog in every Exeter estimate.
The housing stock adds another layer. Most Exeter homes are single-family ranch builds from the 1940s through the early 1980s, many still running 100-amp panels that need an upgrade before a modern array can be permitted. Low-pitch composition-shingle roofs are standard, and we flash every penetration properly so those roofs stay watertight. On larger parcels, detached sheds and packing structures with separate, undersized service frequently complicate what starts as a simple residential quote. We look for that before we quote, not after we start.
Pricing for Solar in Exeter
Solar pricing in Exeter varies with system size, roof condition, panel capacity, and whether your electric panel needs an upgrade first. Here’s what we typically see on residential jobs in this area:
- Basic 4-6 kW residential array: $9,500-$14,500 before incentives
- Mid-size 7-10 kW system: $15,000-$24,000 before incentives
- Larger 11-15 kW system with battery backup: $28,000-$42,000 before incentives
- Panel upgrade (100-amp to 200-amp): $2,500-$4,500, depending on existing wiring and meter location
- Solar panel cleaning: $150-$350 per visit, based on array size and roof access
- EV charger installation: $700-$2,200, depending on run length and panel capacity
We offer a Senior and Veteran 10% discount that never expires, $40 off any repair over $200, and a free second opinion on any written estimate from another company. No trip charge inside our own county. Bring me a bill, I’ll bring you the math. Take two weeks. Think about it. The price will be the same.
Service Area - Cities Near Exeter
Besides Exeter, we regularly serve Farmersville, Lindsay, Woodlake, and Visalia. If you’re in one of those communities, call (877) 550-6892 and we’ll tell you straight when we can be there.
Serving Exeter, CA - Our Local Coverage Area
We’re based in the Exeter 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 About Solar in Exeter
Residential solar in Exeter typically costs between $9,500 and $24,000 before incentives for most homes, with larger systems that include battery backup running $28,000 to $42,000. Your exact price depends on roof condition, panel capacity, and whether you need a panel upgrade first. Call (877) 550-6892 for an exact quote - estimates are free, and we build the math off your actual utility bill.
Yes, and it matters more than most people expect. December and January can see days or weeks of dense fog that cuts production sharply, so any honest Exeter proposal has to account for that seasonal swing. If a salesperson only shows you summer numbers, ask for the winter-adjusted output before you sign. That’s the number we lead with.
Most of the time, yes, but it requires a panel upgrade to 200-amp before the array can be permitted. We’ll identify that during the site visit and include it in the quote, so there are no surprises after you sign. No-hassle upfront pricing: the number we quote is the number you pay, period.
We do. Exeter’s citrus-era properties frequently have detached sheds or packing structures with separate, undersized electrical service. We’ll evaluate the whole property, not just the house, and design around what’s actually there. That’s part of quoting the year-25 output, not the day-one brochure number.
We’ll tell you upfront. Most Exeter service calls get a same-day or next-day visit, depending on the season and the issue. Call (877) 550-6892, describe what’s happening, and we’ll give you a straight answer. If a salesman needs an answer tonight, the answer is no - but we’ll still come out tomorrow.
We’re locally owned and owner-operated, with scheduling coordinated from our Central Valley office, and our own crew serves Exeter directly. Gus Petrakis publishes his name, address, and license number, and he answers his own phone. That’s the L.O.C.A.L. code we run on: Local roots, On time, Community first, Accountable, Loyal. You can verify us before you sign anything.
Ready to talk solar? Call (877) 550-6892 for a free estimate on installation, battery backup, cleaning, or repair in Exeter. Bring us a bill, and we’ll bring you the math. At Gus’s Solar, the price we quote is the price you pay - and Gus’s name is on every job we do.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Exeter and the Central Valley since 2011.
What happens when you call
- 1A real person answersNo phone trees - talk to a local solar pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Exeter Customers Say
"Production dropped one spring and I did not even notice. Gus rang me, because he watches the monitoring, and had it sorted the same week."
- Sunita Balakrishnan"My previous solar company went out of business and left me with an array nobody would touch. Gus took the system over, replaced two dead microinverters, and it has run properly since."
- Ferdinand Kaltenbrunner"Four different companies knocked on my door in one summer and every one of them wanted a signature that evening. Gus has a shop with his name on it, gave me the numbers on paper, and told me to take a fortnight and think about it."
- Winifred Castellano






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