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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.
Fast, Reliable Solar Panel Installation Across Millbrae
Solar panel installation in Millbrae runs about $17,500 to $38,000 for a typical 6 kW to 11 kW rooftop system before the federal tax credit, and most Millbrae homes fall in the $22,000 to $28,000 range based on the ranch and hillside rooflines we see here. That price is not a brochure number. It is built off your actual PG&E bill, your roof pitch, and your roof’s orientation under Millbrae’s specific flight-path and fog-belt conditions. Our Solar Panel Installation team serves every Millbrae neighborhood, from the flatlands near the Caltrain corridor up the western hills, and we answer the phone at (877) 550-6892.
Gus Petrakis founded Gus’s Solar in 2011 and still answers his own phone. We are not a door-knocking outfit and we will not ask you to sign anything tonight. Bring us a bill, we’ll bring you the math.
Why Gus’s Solar Is Millbrae’s Preferred Solar Panel Installation Company
Millbrae is different from the rest of the Peninsula, and most out-of-area installers do not figure that out until their first permit gets bounced back. Homes here sit directly under SFO’s approach and departure corridors. That means rooftop solar frequently triggers FAA Form 7460-1 obstruction evaluation and a glare-hazard analysis before the city will even look at the permit. A contractor who has never filed one of these will burn four to six weeks learning on your roof. We file them routinely. It is part of how we quote Millbrae jobs accurately the first time.
Our Millbrae customers have had us on roofs from the flatlands off El Camino Real to the steep hillside streets above Murchison Drive. We know the difference between a 1958 composition-shingle ranch near Taylor Middle School and a 1970s custom hillside home with a tile roof and a southwest pitch. That matters when you are deciding whether your decking can carry a racking system or whether you need a re-roof first.
We schedule Millbrae calls within 48 hours for estimates and can usually be on-site for repairs or adjustments the same week. Every call goes to a live person, 24/7. Not a voicemail. Not a ticket. Not a call center in another state. Gus’s own crew does the install, background-checked and uniformed, and Gus’s crew is the one who comes back if anything is not right.
Our Solar Panel Installation Services in Millbrae
Solar System Design & Permitting
This is where Millbrae jobs are won or lost. A system designed for a flat, unshaded lot in San Mateo will not hold up on a hillside street under SFO’s approach path. We run site-specific shading analysis because Millbrae’s marine fog delays peak generation by an hour or two on summer mornings compared to South Bay cities. We also handle the FAA Form 7460-1 filing and glare study when your roof triggers the review. If a permit gets denied on the first submittal because the glare study was missing, that is weeks of delay. We file it with the original application. The price we quote includes this work, not as an add-on you find out about later.

Rooftop Solar Installation
Most Millbrae rooftops fall into two groups: the post-WWII ranch homes and modest two-story colonials built from the 1950s through the 1970s near the Caltrain corridor, and the hillside homes climbing west toward the ridgeline. Ranches here often have aging composition shingles that need a roof assessment before we mount anything. Hillside homes generally have better south and southwest exposure, but irregular lot orientations mean off-the-shelf racking layouts do not always fit. We use custom racking where the roof demands it, and we flash every penetration properly. Gus’s crew does this work directly. It is not handed off to a sub.

Roof-Mount & Tile Roof Solar
Tile roofs are common on Millbrae hillside homes, and they require a different mounting approach than composition shingle. We use tile-replacement mounts and properly flashed standoffs so the roof keeps its water seal. We have pulled broken tiles off more Millbrae roofs than we can count where a previous installer used the wrong hook and cracked the tile instead of replacing it. On hillside tile roofs we also check the underlayment condition. A tile roof can look fine from the street and be dry-rotted underneath, which is a leak waiting for the first winter storm.

Solar Panel Replacement
If you already have solar in Millbrae and the panels are underperforming, cracked, or the inverter is failing, we can replace the panels and rework the racking without tearing off the whole roof. We match new panels to the existing string or microinverter setup and document everything for the city. On homes under the SFO flight paths, we specify low-reflectivity anti-reflective coated panels when replacement panels are needed, so the system stays compliant with the glare study that was done the first time. If you bought a house in Millbrae that came with solar and you do not know who installed it, we can assess the system and tell you what you actually have.

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 Millbrae
We work with equipment from FranklinWH, Tesla, Enphase, and SolarEdge, among others, and we stock common parts locally so Millbrae customers are not waiting on a warehouse shipment from out of state. For hillside homes above the fog deck, we often recommend Enphase IQ8 microinverters because they handle partial shading better than a single string inverter when morning fog burns off unevenly across the roof. If you are adding battery backup, FranklinWH and Tesla Powerwall both integrate cleanly with the systems we install in Millbrae. We will give you straight numbers on equipment cost and expected year-25 output, not a day-one brochure figure.
Common Solar Panel Installation Problems We See in Millbrae Homes
- Permit denial on the first submittal. Millbrae sits under SFO approach and departure paths, so many rooftop solar permits require FAA Form 7460-1 and a glare study. Installers who skip this get bounced, and the homeowner waits weeks. We file the paperwork with the original permit package.
- High-reflectivity panels specified on hillside homes. Standard panels can fail the FAA glare review. We specify low-reflectivity anti-reflective coated panels up front so the permit clears the first time. If your home is above Murchison Drive or anywhere on the western slope, this applies to you.
- Mounting on compromised decking on 1950s-1970s ranch homes. The flatlands near the Caltrain corridor are full of composition-shingle ranches from the 1950s and 1960s. Mounting solar on dry-rotted or delaminated decking leads to leaks and a re-roof you did not budget for. We assess the roof before we quote, and if you need decking repair, we tell you then, not after we have drilled into it.
- Fog-related production overestimation. A South Bay installer might quote production numbers that do not account for Millbrae’s marine layer. Summer mornings here can delay peak generation by one to two hours. Homes above the fog deck on the western slopes can outperform, but flatland homes need an honest shading analysis, not a copy-pasted production model. We quote the year-25 output, not the day-one brochure number.
Pricing for Solar Panel Installation in Millbrae, CA
A full rooftop solar installation in Millbrae typically runs $17,500 to $38,000 before the federal tax credit, with most homes landing between $22,000 and $28,000. Here is what drives the number:
- System size: 6 kW systems start around $17,500; 10 kW to 11 kW systems run $28,000 to $38,000 depending on equipment.
- Roof type and pitch: Tile roofs on Millbrae hillside homes add $1,500 to $3,500 in mounting hardware and labor compared to composition shingle.
- FAA glare study and obstruction filing: When required, this adds $1,200 to $3,000 and two to six weeks of lead time. Most Peninsula cities never see this. Millbrae homes under the SFO corridors do.
- Panel choice: Low-reflectivity anti-reflective coated panels run $0.15 to $0.40 more per watt than standard panels but are often required for Millbrae permits. We quote them up front.
- Battery backup: Adding a FranklinWH or Tesla Powerwall typically adds $11,000 to $16,000 to the total.
We give free estimates, and the number we quote is the number you pay. No signature wanted tonight. Take two weeks. Think about it. The price will be the same. Call (877) 550-6892 and bring us a bill. We’ll bring you the math.
We Also Serve Cities Near Millbrae
Gus’s Solar serves Millbrae and the surrounding Peninsula communities, including San Bruno, Burlingame, Hillsborough, and South San Francisco. If you are in one of those cities and need the same straight-talking solar work we do here in Millbrae, call us at (877) 550-6892 and we will come out. Our Millbrae customers often refer neighbors across the city line because they know the crew and they know the work.
Serving Millbrae, CA - Our Local Coverage Area
We’re based in the Millbrae 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 Millbrae
No. Only rooftops that fall under SFO’s approach and departure corridor triggers require FAA Form 7460-1 and a glare-hazard analysis. That includes many hillside streets above Murchison Drive and a good portion of the western slope. Flatland homes near the Caltrain corridor usually do not. We check your address against the FAA’s obstruction evaluation maps before we quote, so you are not paying for a study you do not need. Call (877) 550-6892 and we will tell you in the first conversation whether your roof triggers the review.
Yes. When a Millbrae roof falls under approach-path review, the FAA glare analysis typically requires low-reflectivity anti-reflective coated panels. Standard high-reflectivity panels can fail the review and hold up the permit. We default to anti-reflective coated panels on any Millbrae roof that might trigger the study, and we document the panel specification in the permit package. This is one of the things that catches out first-time installers who do not know Millbrae.
Millbrae sits in a moderate marine-fog belt. Summer mornings can see marine layer that delays peak generation by one to two hours compared to South Bay cities, though the coastal hills block the heaviest fog that hits Pacifica and San Francisco. Hillside properties above the fog deck on the western slopes often outperform flatland homes just blocks away. That is why we run site-specific shading analysis on every Millbrae quote instead of plugging in a generic number. If a contractor hands you a production estimate without visiting your roof, that estimate is a guess.
Millbrae is on PG&E net metering the same as the rest of the Peninsula, but your actual credits depend on your export rate, your usage pattern, and when your system produces. The fog delay shifts Millbrae’s production window slightly later in the morning, which can move some production into higher-value afternoon hours or miss the morning peak, depending on your usage. We model your bill against actual Millbrae weather data, not a statewide average. Bring us a bill and we will show you the year-25 numbers off your real usage.
Many do. The 1950s and 1960s ranch homes in the flatlands near the Caltrain corridor often have composition shingles at or near end of life, and we frequently find decking that needs repair before we will mount a racking system. If your roof has two to five years left, it is usually cheaper to re-roof before solar than to remove and reinstall the panels later. We assess the roof during the estimate and tell you honestly what you need. We do not drill into compromised decking and hope for the best.
Call (877) 550-6892 for a free solar estimate in Millbrae. Live person, 24/7. If a salesman needs an answer tonight, the answer is no. Gus’s Solar does not work that way, and we never have.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Millbrae since 2011.






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