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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.
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AfterSolar Services in Brentwood, CA
If your July PG&E bill has you wincing, you’re not alone. Brentwood summers run hot, with afternoon temperatures above 100°F and almost no fog relief from the Delta. That means your AC runs hard from June through September, and the cost lands directly on your kitchen table. Gus’s Solar installs, services, and repairs solar systems throughout the 94513 zip code, and we know exactly how Brentwood homes are built because we’ve worked on hundreds of them. Call (877) 550-6892 and a live person answers. Always.
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 Brentwood Homeowners Choose Gus’s Solar
Most of our Brentwood customers come to us after a door-knocker or an out-of-state outfit left them with a bad taste. They want a name they can verify and a face they’ll see again at the farmers market off First Street. That’s Gus Petrakis. He founded Gus’s Solar in 2011, publishes his license number and address, and answers his own phone. Not a call center. Not a ticketing portal. Gus.
We’ve installed and serviced systems in Deer Ridge, along the Sand Creek corridor, in Apple Hill Estates, and throughout the neighborhoods off Balfour Road. Homeowners there tell us the same thing: the quote matched the final bill, the crew showed up when they said they would, and when a question came up later, someone picked up the phone. That’s the L.O.C.A.L. standard we work by: Local roots, On time, Community first, Accountable, Loyal. Every solar job also carries our 90-Day Done Right Promise in writing. If something isn’t right, Gus makes it right.
Solar Services We Offer in Brentwood
Solar Panel Installation
We design systems around your actual PG&E bill and your roof’s orientation, not a brochure estimate. Most Brentwood homes have large south and west-facing roof planes that work well for solar. Learn more about our Solar Panel Installation in Brentwood.
Solar Battery Storage & Backup
With PG&E’s time-of-use rates, storing late-afternoon generation for evening use changes the math significantly. We install FranklinWH and other battery systems sized to your actual overnight usage. Learn more about our Solar Battery Storage & Backup in Brentwood.
Solar Panel Cleaning
Brentwood’s dry summers and farm-adjacent air leave a fine layer of dust and pollen on panels that cuts output by 5 to 12 percent. We clean panels safely without damaging the glass coating. Learn more about our Solar Panel Cleaning in Brentwood.
EV Charger Installation
More Brentwood households have two EVs in the garage, and a Level 2 charger beats the 120-volt trickle charge by hours. We run dedicated circuits, handle the load calculation, and install the charger cleanly.
Solar Panel Maintenance & Monitoring
We watch your system’s production data and call you when output dips. No portal you have to check yourself. Gus’s team monitors it and reaches out if something looks off.
Solar Panel Repair
Inverters fail, critters chew wiring, and tile roofs shift. We diagnose the problem, quote the repair honestly, and don’t sell you a replacement when a repair fixes it.
Commercial Solar Installation
Brentwood’s retail and agricultural properties can offset serious energy costs with a properly sized array. We handle the permit drawings, the structural review, and the install with our own crew.
Neighborhoods We Serve in Brentwood
We work throughout Brentwood and the surrounding communities. Crews typically reach most Brentwood homes within a day or two for non-emergency work, faster for issues that need immediate attention.
- Deer Ridge
- Apple Hill Estates
- Sand Creek corridor
- Balfour Road area
- Downtown Brentwood near First Street
Why Brentwood’s Climate & Housing Affect Solar
Brentwood sits at the eastern edge of Contra Costa County where the Diablo Range gives way to the San Joaquin Valley. The Delta breeze arrives late in the day, if at all, which means afternoons bake under sustained sun. Peak sun hours here run measurably higher than in the inner East Bay, and west-facing arrays capture late-afternoon generation that directly offsets your AC demand under PG&E’s time-of-use schedule.
Most Brentwood homes were built between 1998 and 2008 in large planned communities by Pulte, Lennar, and Discovery Homes. These are 2,200 to 3,500 square foot two-story homes with broad concrete-tile roofs and almost no pre-wiring for solar. The tile work requires careful staging and re-seating around every penetration, which adds labor compared to composition shingle jobs. We know because we’ve done it on hundreds of these exact homes. The city’s building department also scrutinizes tile-hook documentation closely, so we prepare permit drawings that anticipate what inspectors will ask for. It’s not a guess. It’s experience.
Pricing for Solar in Brentwood
We quote off your actual bill. Bring us a PG&E statement and we’ll show you the math. A typical 5.5 to 7 kW residential system on a Brentwood tile roof runs between $14,000 and $22,000 before incentives, depending on panel brand, roof condition, and whether you add battery storage. Battery systems typically add $8,000 to $14,000. Panel cleaning runs $180 to $320 for a standard two-story array. Repairs vary by issue, but we offer $40 off any repair over $200, and a free second opinion on any written estimate from another installer. Seniors and veterans get 10% off, always. If a salesman needs an answer tonight, the answer is no. Take two weeks. The price will be the same.
Service Area - Cities Near Brentwood
While this page covers Brentwood, our crews regularly work in nearby communities. If you’re in Oakley, Discovery Bay, Antioch, or Clayton, we’ll come out and take a look the same way we would in Brentwood.
Serving Brentwood, CA - Our Local Coverage Area
We’re based in the Brentwood 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 Brentwood
Most residential systems in Brentwood run between $14,000 and $22,000 before incentives, with battery storage adding $8,000 to $14,000. Your exact number depends on your roof, your usage, and the equipment you choose. Call (877) 550-6892 with your PG&E bill handy and we’ll give you a real figure, not a brochure range.
Yes. Brentwood’s building department requires a permit for any solar installation, and the city reviews the structural and electrical drawings before work starts. We handle the permit package, the tile-hook documentation, and the inspection scheduling so you don’t have to.
On many Brentwood homes, especially those with good south or west roof exposure, a properly sized system offsets 85 to 100 percent of annual electricity costs. Summer cooling demand drives most of the usage here, and solar production peaks during exactly those months.
Most residential installs take one to three days on-site, plus permit and inspection time with the city. From signed contract to turned-on system usually runs four to eight weeks. We’ll give you a timeline in writing before we start.
Call (877) 550-6892 and ask. We keep a live person on the phone 24/7, and for Brentwood homeowners we often schedule an assessment within a day or two. Estimates are free, and bringing a second opinion on any written quote costs nothing.
Written by Gus Petrakis, Owner of Gus’s Solar, serving Brentwood with honest solar work and straight answers.
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 Brentwood Customers Say
"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"Honest quoting and good workmanship. He is not the cheapest quote I got, by some way, and he told me that himself and explained what the difference bought. I chose him anyway and I am glad."
- Alistair Fennimore