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

- BEST SOLAR AND ROOFING COMPANY IN SANTA CLARA COUNTY
Best Solar and Roofing Company in Los Altos, CA
Green Conception serves Los Altos homeowners in ZIP 94022 with licensed roofing and solar installation - one contractor, one warranty, no runaround between trades.
Since 2014
Serving California homeowners
60+
Verified customer reviews
$0
Down · 100% financing available
Lic. 964965
CSLB licensed & insured

— Built for this community
Los Altos Roofing and Solar Done Right the First Time
Fall is the window in Los Altos. September through November, the rains haven't started yet and your roof is still dry enough to inspect properly - that's when replacements go faster, flashings seal cleaner, and solar mounts seat without moisture complications. 94022 homes range from 1950s ranch styles to newer two-stories, and the roofing needs vary just as much. Some need full tear-offs. Some just need targeted repairs before panels go up. Green Conception checks every layer before we quote anything, because installing solar on a roof that has three years left is a mistake we won't make. Permits through Santa Clara County typically run 3-5 business days for straightforward jobs. Fall timing keeps your project on schedule before the rainy season closes the calendar.
— The benefits
Six Reasons Los Altos Homeowners Choose Green Conception
One License, One Warranty
Two separate contractors means two schedules, two warranties, and two fingers pointing at each other when something leaks. Green Conception holds both C-39 roofing and C-46 solar licenses under a single CSLB number in Los Altos.
Local PG&E Rate Knowledge
PG&E rates in 94022 are among the highest in California. Green Conception sizes solar systems around actual bill data, not generic averages, so your offset calculations reflect what you actually pay.
Santa Clara County Permit Experience
Permits in Santa Clara County take 3-5 business days on clean submittals. Green Conception has pulled hundreds of them and knows exactly what inspectors check - no resubmittals, no delays.
Bay Area Roofing Materials
Fog-belt homes need materials rated for moisture cycling, not just heat. Green Conception specs manufacturer-warranted products built for coastal microclimates, not generic Sun Belt shingles that won't last five winters here.
No-Deposit Written Quotes
Every Los Altos estimate is written, itemized, and requires no deposit to receive. You'll see labor, materials, permit fees, and timeline broken out line by line before anything is signed.
Free Roof Inspection Included
Before any solar quote goes out, a licensed roofer walks your roof. Free, no obligation. If the roof needs work, you'll know the cost upfront - not six months after panels are already mounted.
01
Free Roof and Site Inspection
A licensed roofer checks your 94022 home's roof condition, age, and load capacity. Nothing gets quoted until we know exactly what's up there. No charge, no commitment required.
02
Written Scope and Pricing
You get an itemized written quote covering roofing, solar, permits, and timeline. Ranges for Los Altos full re-roofs typically run $12,000-$22,000 depending on pitch and material. Solar adds separately.
03
Permit Filing With County
Green Conception files all Santa Clara County permits - roofing and solar together where possible. Standard turnaround is 3-5 business days. We track status and notify you when approvals land.
04
Roofing First, Then Solar
Roof replacement happens before any panel mounting. The new roof gets a city inspection and sign-off first. Solar installation follows on a confirmed, warranted surface - no shortcuts.
05
Final Inspection and Handoff
Santa Clara County inspects both systems before we close the job. You receive all permits, manufacturer warranties, and a single-point contact for any future questions. Done.
— How it works
How Green Conception Handles Your Los Altos Project
Most contractors hand you a brochure and a price. Green Conception starts by actually looking at your roof. 94022 homes vary widely - some have original 1960s composition shingles, others have been re-roofed once or twice with layers that need to come off. The inspection drives the quote, not the other way around. Santa Clara County requires separate structural and electrical permits for solar plus a roofing permit for replacement work. Green Conception files all of them together, which saves time and keeps the inspection schedule tight. Bay Area fog seasons mean weather windows matter. We sequence the work so roofing closes before solar mounting begins, protecting the interior at every stage.
— More from Green Conception
More Services for Los Altos Homes



Attic Insulation and Ventilation
Poor attic ventilation is the hidden enemy of roofing systems in the Bay Area. Green Conception checks and upgrades insulation and ridge venting during roofing projects, which extends shingle life and reduces PG&E heating and cooling loads in Los Altos homes. Often done same visit.
- Why us
Why Los Altos Picks Green Conception

How Green Conception Thinks About Roofing and Solar Together
Roofing and solar aren't separate decisions on a Los Altos home - they're the same decision made at different times. Green Conception plans both systems together so the roof supports the panels, the warranty covers both, and nothing gets redone in five years.
"A roof and a solar system are one assembly. I won't put panels on a roof I wouldn't sign off on separately - and in Los Altos, that standard has saved a lot of homeowners from expensive mistakes down the road."
— Nick K. · Founder
Mountain View (94040)
Portola Valley (94028)
Palo Alto (94301)
Cupertino (95014)
Green Conception Serving Los Altos Homes in 94022
Green Conception works regularly in Los Altos neighborhoods throughout 94022 - from the ranch-style homes near Foothill Expressway to the older two-stories off Edith Avenue and the tree-canopied streets around Grant Park. Homes here range from mid-century builds with original rooflines to remodeled properties where previous solar or roofing work needs to be undone before it's done right. Green Conception holds active C-39 and C-46 licenses and pulls all required Santa Clara County permits on every job.
— Common questions
Common Questions About Roofing and Solar in Los Altos
Does my Los Altos roof need replacing before solar?
Not always, but it depends on age and condition. Green Conception inspects every roof before quoting solar. If your 94022 roof has fewer than 10 years of life left, replacing it first is almost always cheaper than removing and reinstalling panels later.
How long does a full re-roof take in 94022?
Most single-story Los Altos homes take 1-2 days for a full re-roof. Two-story homes with steeper pitches may run 2-3 days. Permit approval through Santa Clara County typically adds 3-5 business days before work can begin.
What roofing materials work best in Los Altos fog?
Composition shingles rated for Class A fire and moisture cycling work well in the Bay Area fog belt. Concrete tile is popular on older Los Altos homes and holds up to the microclimate better than lighter products. Green Conception specs materials to your specific roof geometry and exposure.
Can Green Conception handle both roof and solar permits?
Yes. Green Conception files roofing and solar permits with Santa Clara County together wherever the scope allows. Combined filing reduces total wait time and keeps the inspection schedule tight. Permits typically take 3-5 business days on clean submittals.
What does a Los Altos roof replacement cost?
Full re-roofs in 94022 typically range from $12,000 to $22,000 depending on size, pitch, and material choice. Composition shingles land at the lower end. Tile and premium products run higher. Green Conception provides written, itemized quotes with no deposit required.
How does PG&E net metering work for solar in Los Altos?
PG&E's NEM 3.0 program governs new solar installations in Los Altos. Excess generation credits are lower under NEM 3.0 than previous versions, which makes battery pairing more attractive. Green Conception sizes systems around your actual PG&E bill to maximize offset under current rules.
Is Green Conception a licensed roofing contractor in California?
Green Conception holds an active California C-39 roofing license and C-46 solar contractor license under one CSLB number. Both licenses are current and verifiable on the CSLB website. Liability insurance and workers' comp certificates are available before any work begins.
What warranty covers a combined roof and solar project?
Green Conception provides a single written warranty covering both the roofing system and solar installation. Manufacturer product warranties stack on top of that. Having one contractor responsible for both systems means no disputes about which trade caused a problem if something comes up later.


