✓ California Licensed Contractor
✓ CSLB #964965
✓ Family-Owned & Operated
✓ Fully Insured
✓ Serving California Homeowners Since 2014

- BEST SOLAR AND ROOFING COMPANY IN SAN MATEO COUNTY
Best Solar and Roofing Company in Atherton, CA
Serving Atherton homeowners in ZIP 94027 with licensed roofing and solar installations built for Bay Area microclimates, PG&E rate conditions, and the older housing stock that defines this peninsula town.
Since 2014
Serving California homeowners
60+
Verified customer reviews
$0
Down · 100% financing available
Lic. 964965
CSLB licensed & insured

— Built for this community
Why Atherton Homeowners Are Replacing Roofs and Adding Solar
PG&E rates in San Mateo County have climbed past 40 cents per kilowatt-hour for many tiered users. In 94027, where estate homes run 4,000 square feet or more, that bill hits hard every month. A new roof and a solar system installed together cost less than doing them separately, and the combined warranty covers everything under one contractor. Green Conception is a licensed roofing contractor and solar installer operating throughout Atherton - we pull permits with San Mateo County, use manufacturer-backed materials, and leave no open liability between trades. Roofs here are often cedar shake or older tile. Both require specific underlayment choices before panels go on. We've done this combination hundreds of times across the peninsula.
— The benefits
Six Reasons Atherton Homes Need Both Services
Lower PG&E Bills Fast
Atherton homes in 94027 average high energy loads. Pairing a sealed roof with a properly sized solar array cuts monthly PG&E costs by thousands annually for most estate-sized properties we've worked on.
One Permit Pull
San Mateo County requires separate permits for roofing and solar, but one licensed contractor handles both filings. That cuts weeks off your project timeline and keeps inspection scheduling coordinated under a single point of contact.
No Warranty Gap
Two vendors mean two warranties that point at each other when a leak appears. Single-contractor work means one document covers roofing materials, solar hardware, and labor - no gaps, no arguments, no delay on repairs.
Cedar Shake Done Right
Many Atherton estates in 94027 still carry original cedar shake. Replacing it correctly before solar mounting protects your structure for 30 years. Wrong underlayment under panels is expensive. We've fixed too many of those mistakes.
Bay Area Fog Protection
Fog belt moisture cycles through Atherton seasonally, lifting and settling around the Menlo foothills. Roofing systems here need breathable underlayment and corrosion-resistant flashing to handle that humidity without rotting the deck underneath.
Property Value Increase
94027 is one of the highest-value ZIP codes in California. A permitted solar and roofing upgrade adds documented value at resale, and buyers in this market expect systems that are fully inspected and under active manufacturer warranty.
01
Free Roof and Solar Inspection
We inspect the full roof deck, existing covering type, attic ventilation, and sun exposure. No charge, no deposit. You get a clear picture of what needs replacing before any conversation about solar starts.
02
Written Quote, Both Scopes
One written quote covers roofing materials, solar equipment, labor, and permit fees. No surprises at invoice. Atherton jobs in 94027 typically range $28,000-$75,000 depending on roof size and system output needed.
03
San Mateo County Permit Filing
Green Conception pulls all permits with San Mateo County. Permits here take 3-5 business days on standard residential applications. We handle every document so you don't lose days coordinating between multiple contractors and the county.
04
Roofing First, Then Solar
New roofing goes down first - deck repairs, underlayment, and final covering. Solar mounting happens after the roof passes inspection. Sequencing this way avoids any penetrations through a warranty-voiding surface. Every time.
05
Final Inspection and PG&E Interconnect
City inspection covers both systems before we call the job done. We submit your PG&E interconnection application directly and walk you through the net metering agreement. You don't deal with the utility alone.
— How it works
How Green Conception Handles Roofing and Solar in Atherton
Every job in 94027 starts with a free roof and solar inspection - no deposit, no obligation. We check the deck, the existing covering, the attic ventilation, and the structural attachment points for any future panel layout. After that, we write a written quote covering both scopes. Permits in San Mateo County typically take 3-5 business days once submitted. We handle every filing. Installation runs roofing first, solar second, with a single city inspection covering the combined work wherever allowed. Green Conception carries full liability insurance and works with your utility interconnection application to PG&E directly. Most Atherton projects finish in 3-5 days of on-site work depending on roof size and system complexity.
— More from Green Conception
More Services for Atherton Homes



Gutter and Drainage Systems
Atherton properties in 94027 often have extended roof overhangs and mature landscaping that directs heavy runoff. Green Conception installs and replaces gutter systems sized for Bay Area rain events, including seamless aluminum gutters with proper downspout routing away from foundations and landscaping. Licensed, permitted, and inspected.
Solar Panel Installation
Cool roof coatings apply a reflective membrane over existing low-slope or flat roof sections, dropping surface temperatures by up to 50 degrees on summer afternoons. For Atherton estates with flat garage or accessory structure roofs, this reduces cooling loads before a solar system even turns on. San Mateo County permitted.
Attic Insulation Upgrades
Older Atherton homes frequently have minimal attic insulation, which drives up both heating and cooling loads on top of already-high PG&E rates. Green Conception installs blown-in and batt insulation upgrades that reduce thermal loss, lower your energy baseline, and improve the performance of any solar system above.
- Why us
Why Atherton Homeowners Choose Green Conception

How a Dual-Licensed Contractor Protects Your Atherton Home
Most Bay Area roofing problems on solar homes come from one thing: a roofer and a solar company that didn't coordinate. Green Conception eliminates that gap by holding both licenses, writing one contract, and standing behind both scopes without deflection.
"Atherton roofs are often in worse shape than they look from the street - decades of fog cycling does real damage under cedar shake. I won't mount solar on a roof I wouldn't warranty myself. That's the whole point of doing both trades under one license."
— Nick K. · Founder
San Carlos (92119)
Redwood City (94061)
Palo Alto (94301)
Woodside ()
Green Conception Roofing and Solar Serving Atherton, CA
Green Conception has worked on roofing and solar projects throughout Atherton's 94027 ZIP, including the large estate properties along Alejandra Avenue, the tree-canopy lots near Holbrook Lane, and older homes in the central Atherton residential core. We know the roof types common here - cedar shake, older clay tile, and aging composition shingle - and we pull every permit directly with San Mateo County. One crew, one license, one warranty for the entire job.
Menlo Park (94025)
— Common questions
Common Questions About Roofing and Solar in Atherton, CA
Does replacing a roof before solar save money?
Yes - doing both together saves money compared to separate contracts. Mobilization costs, permit fees, and inspection scheduling all happen once. Atherton homeowners in 94027 typically save $3,000-$7,000 on combined projects versus sequential separate contractors. Written quotes show the breakdown.
How long do San Mateo County permits take?
Permits in San Mateo County take 3-5 business days for standard residential roofing and solar applications. Green Conception handles all filing and document submission. We've pulled permits in 94027 multiple times and know what the county reviewer needs on the first submission to avoid delays.
What roofing materials work best under solar panels?
Concrete tile and composition shingle are the most solar-compatible roofing materials for Atherton homes. Cedar shake requires a full replacement before panel mounting because penetrations void most shake warranties. Green Conception checks your existing material during the free inspection and recommends accordingly. No guessing.
Is Green Conception a licensed roofing contractor in California?
Yes. Green Conception holds an active CSLB C-39 roofing license covering all residential roofing work in California, including Atherton and San Mateo County. License status is verifiable on the CSLB public database. We carry liability insurance and workers' comp on every active job.
What does a combined roof and solar job cost in Atherton?
Most Atherton projects in 94027 run between $28,000 and $75,000 for combined roofing replacement and solar installation, depending on roof square footage and system output size. We provide a no-obligation written quote after the free inspection. No deposit is required to receive your estimate.
How does fog affect roofing and solar performance in Atherton?
Bay Area fog cycles create persistent moisture exposure that degrades roofing underlayment and accelerates flashing corrosion over time. For solar, fog reduces morning production hours but Atherton still averages enough clear-sky days for strong annual output. Proper roofing materials and corrosion-resistant mounting hardware both matter here.
Can Green Conception handle the PG&E interconnection application?
Yes. Green Conception submits the PG&E interconnection application directly on your behalf as part of every solar installation. We handle the utility paperwork, respond to any technical requests from PG&E, and walk you through the net metering agreement before your system turns on. You don't deal with the utility alone.
Why use one contractor for both roofing and solar?
Two contractors create a liability gap - each points at the other when a roof leak appears near a panel mount. One licensed contractor covering both scopes means one warranty document, one point of contact, and no deflection. For high-value Atherton homes in 94027, that protection matters from day one.


