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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.
Solar Services in Westmont, CA
If your SCE bill keeps climbing while your roof bakes in the South LA sun, you’re in the right place. Gus’s Solar installs, repairs, cleans, and monitors solar systems throughout Westmont, and we get to most calls in the 90047 zip code the same week, often sooner. We know the difference between an LADBS permit and an LA County permit, because in Westmont that distinction decides whether your project stalls for weeks or moves forward cleanly. Call (877) 550-6892 and a live person answers, 24 hours a day.
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 Westmont Homeowners Choose Gus’s Solar
The solar industry has a reputation problem in neighborhoods like Westmont, and it is largely earned. Out-of-state sales crews work the South LA door-knocking circuit hard, promising one number on the porch and delivering another on the paperwork. Gus Petrakis has watched that happen for years, and he built his company as the opposite of that. His name is on the truck, his crew does the install, and he quotes the year-25 output, not the day-one brochure number.
We have worked on homes near Centinela Park and along the side streets off Western Avenue, and plenty of our current customers found us after a national installer vanished the morning after the system went live. That pattern is why the 90-Day Done Right Promise exists in writing on every job. If it is not right, Gus comes back and makes it right. One call brings him back.
The permits here are a real test of local knowledge. Westmont sits in unincorporated Los Angeles County, which means projects must clear LA County DPW Building & Safety rather than LADBS. Contractors who assume city-of-LA rules apply burn weeks and sometimes screw up the approval entirely. We do not make that mistake, because we do not guess. We pull the county permit, schedule the county inspection, and build the timeline around what actually happens here, not what happens in a city office a few blocks north.
Solar Services We Offer in Westmont
Solar Panel Installation
We design and install rooftop solar sized to your actual SCE usage, not a generic square-footage formula. On the post-WWII homes that dominate Westmont, that math matters because roof space is often tight and panel placement has to work around vents, dormers, and shallow pitches.
Learn more about our Solar Panel Installation in Westmont.

Solar Battery Storage & Backup
A battery turns your solar array into something useful after sunset and during SCE outages. We install FranklinWH and other battery systems sized to the circuits you actually need backed up, so you are not paying for capacity you will never use.
Learn more about our Solar Battery Storage & Backup in Westmont.

Solar Panel Cleaning
SoCal flatlands kick up dust, and Westmont’s streets carry a lot of particulate from nearby freeway corridors and urban traffic. A dirty panel can lose 10 to 15 percent of its output before you notice anything is wrong, and a plain water rinse rarely cuts the grime that builds up over a dry summer.
Learn more about our Solar Panel Cleaning in Westmont.

EV Charger Installation
If you drive an EV or are thinking about one, a Level 2 charger on a dedicated circuit changes everything about your week. We install chargers on Westmont homes, which frequently means planning around the same 60- or 100-amp panels that complicate solar work here.

Solar Panel Maintenance & Monitoring
We keep an eye on Westmont systems, and when output dips, Gus is the one who notices and calls you. Monitoring catches failing inverters, broken optimizers, and wiring issues before they become a full month of wasted production.

Solar Panel Repair
Inverter failures, damaged panels, chewed wiring, and bad roof penetrations all show up over time, especially on systems installed by crews who rushed the job. We repair what others installed, no lecture included. You are already paying for the system; you should get the output.

Commercial Solar Installation
Westmont’s commercial stretch along Vermont Avenue and the smaller retail clusters throughout the community carry real electricity loads. We size commercial arrays for the actual usage profile of the building, and we handle the county permitting path without cutting corners on structural review.

Neighborhoods We Serve in Westmont
We work throughout the 90047 zip code and know the block-by-block differences that matter for solar. Response time for most Westmont calls runs same week, with urgent repair calls often handled within 24 to 48 hours.
- Streets off Western Avenue, from Century up to 104th
- The blocks around Centinela Park
- Areas along Vermont Avenue and the adjacent residential grid
- The residential pockets east toward the 110 freeway corridor
Why Westmont’s Climate & Housing Affect Solar
Westmont sits inland enough from the coast that the June Gloom marine layer does not suppress production the way it does in beach communities further west. That means more peak sun hours on your panels during the months when you need them most. But the tradeoff is the urban heat island effect. By mid-afternoon in July and August, rooftop temperatures in the South LA flatlands run hot enough to shave efficiency off panels at exactly the moment grid demand peaks. A well-designed Westmont system accounts for that heat, which is why we build arrays with airflow, heat-tolerant components, and realistic summer-output expectations rather than lab-spec numbers.
Housing stock compounds the picture. Most homes here were built between the 1940s and 1960s, with shallow roof pitches and original electrical service at 60 or 100 amps. That means a meaningful share of Westmont solar projects include a panel upgrade as part of the job, a cost that gets buried in a rushed quote and then surprises you mid-project. We build it into the number from the start. The same goes for roof condition on asphalt-shingle homes of that era, a quick inspection beats discovering decking rot after the panels are off the truck.
Pricing for Solar in Westmont
For a typical Westmont single-family home running $180 to $300 a month in SCE bills, a rooftop solar installation usually lands between $18,000 and $34,000 before federal tax credits or any applicable incentive programs. That is a wide range because so many homes here need a panel upgrade, which alone can run $2,500 to $4,500. Battery storage adds another $8,000 to $14,000 depending on capacity and brand, with FranklinWH systems on the higher end of the range. Panel cleaning in Westmont runs $150 to $300 for a standard residential array. Every quote is built from your actual bill and your actual roof, not a brochure estimate. Bring me a bill, I’ll bring you the math. And take two weeks to think it over. The price will be the same.
Service Area - Cities Near Westmont
We also serve homeowners just outside Westmont’s borders, including View Park-Windsor Hills, West Athens, Inglewood, and Lennox. Call us and we will confirm coverage for your block.
Serving Westmont, CA - Our Local Coverage Area
We’re based in the Westmont 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 Westmont
Westmont is an unincorporated Los Angeles County community, so solar permits go through LA County DPW Building & Safety, not LADBS. That means county fee schedules, county inspectors, and a different timeline than city-of-LA jobs a few blocks north. We handle the full path and build the realistic timeline into your quote.
Most residential installs in Westmont take one to three days on the roof, but the full process, including county permitting, panel upgrades if needed, inspection, and SCE interconnection, typically runs six to ten weeks from signed contract to system activation. Call (877) 550-6892 with your address and we can give you a tighter window based on current county permit queues.
Many do. The 1940s-to-1960s housing stock here frequently still runs on original 60-amp or 100-amp service, which cannot safely support a rooftop array plus the backfeed requirements. A 200-amp panel upgrade runs roughly $2,500 to $4,500, and we build that into the proposal upfront rather than springing it on you after contract.
Yes. Because Westmont has a predominantly low-to-moderate income homeowner base, programs like SASH and SCE’s low-income solar options are a common part of the conversation here. Eligibility depends on income, household size, and whether SCE is your utility. We walk through the real numbers on your bill and tell you honestly whether an incentive program helps you or not.
Yes. We repair systems installed by other companies, including a lot of national-brand installs that have gone dark on their owners. If a salesman needs an answer tonight, the answer is no. But if you need an honest repair quote and a crew that shows up, call (877) 550-6892 and we will come take a look.
Talk to Gus Directly
Text us a copy of your SCE bill, and Gus will run the numbers himself, no sales script, no pressure. Call (877) 550-6892 for a free estimate. If you already have a written proposal from another installer, bring it in for a free second opinion. And if you are a senior or veteran, the 10% discount never expires.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Westmont and surrounding Los Angeles County communities.
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 Westmont Customers Say
"Gus's own crew did the install. Not a subcontractor who had never met him, which is what the big outfit quoted me and could not tell me who would actually be on my roof."
- Aurelia Santibanez"He modelled it on my actual bill and the current export rates rather than the old ones, and told me plainly that the payback was longer than the door knockers had claimed. Then it came in about where he said it would."
- Octavius Redmond"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






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