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

- ONE STOP SOLAR AND ROOFING IN SAN MATEO COUNTY
One Stop Solar and Roofing in Hillsborough, CA
Green Conception serves Hillsborough, CA 94010 with licensed solar and roofing work built for San Mateo County's coastal fog, salt air, and aging housing stock that most contractors overlook.
Since 2014
Serving California homeowners
60+
Verified customer reviews
$0
Down · 100% financing available
Lic. 964965
CSLB licensed & insured

— Built for this community
Why Hillsborough Homeowners Are Calling Us After Insurance Claims
Hillsborough insurance claims for roof damage jumped after the last few atmospheric river seasons hit San Mateo County hard. Adjusters flag aging Class A roofing, moss accumulation, and underlayment failure on homes built in the 1950s through 1980s - and those flags can trigger non-renewal notices. 94010 properties tend to be high-value, which means replacement costs run steep and insurers scrutinize every line item. Green Conception walks through the damage documentation with you, matches materials to your existing roof profile, and files the permit with San Mateo County before a single shingle gets touched. No deposit required to get a written quote. One crew handles it all.
— The benefits
Six Reasons Hillsborough Trusts One Stop Solar and Roofing
Single Permit Package, Zero Gaps
One permit package covers roofing and solar together in San Mateo County - no duplicate fees, no scheduling gaps between two separate contractors arguing over sequencing. Faster and cleaner.
Roofing Rated for Fog Cycles
Hillsborough's fog belt drives moisture under flashing and into underlayment year-round. We spec materials rated for Class 4 impact and coastal humidity - not the builder-grade product that fails in five years.
Solar Sized to PG&E TOU Rates
94010 sits in PG&E's highest residential rate tiers. Solar systems sized against time-of-use schedules cut bills faster than flat-rate estimates suggest. Numbers matter here. A lot.
Active CA License on Every Job
Green Conception carries an active California contractor license and full liability insurance on every Hillsborough job. Ask for the license number before you sign anything with anyone. Every time.
Manufacturer Warranty, No Middleman
Manufacturer warranties on roofing and solar panels transfer directly to you without a third-party broker in the middle. No gaps in coverage. No phone trees when something needs fixing.
City Inspection Handled for You
San Mateo County permits for roofing and solar take roughly 3-5 business days on standard residential projects. Green Conception files, tracks, and schedules the city inspection so you don't have to chase anyone.
01
Free Inspection and Written Quote
A licensed technician checks your roof in 94010 at no charge. You get a written quote with line-item pricing - no vague estimates, no pressure to sign on the spot.
02
Scope Lock and Permit Filing
Once you approve the scope, Green Conception files roofing and solar permits with San Mateo County together. Standard residential permits take 3-5 business days. No overlap, no waiting on two separate applications.
03
Roofing Installation and Inspection
The crew replaces or repairs the roof first. A city inspector signs off before any solar work begins - so panels go onto a surface that's already passed county review. Clean sequence every time.
04
Solar Racking and Panel Install
Racking mounts to fresh, inspected decking - not patched sections or aging substrate. Panel placement accounts for Hillsborough's fog patterns and tree shading common in 94010 lots near Burlingame Avenue.
05
PG&E Interconnection and Closeout
Green Conception submits PG&E interconnection paperwork and tracks approval on your behalf. Final city inspection closes both permits. You get copies of everything - warranty docs, permit records, and interconnection confirmation.
— How it works
How Green Conception Runs a Hillsborough Roofing and Solar Job
Every job in Hillsborough starts with a free roof inspection - no obligation, no deposit. 94010 homes vary widely, from Spanish tile estates near Tournament Drive to wood-shake ranches closer to the Crystal Springs corridor, so we check each roof individually before quoting anything. San Mateo County permit applications go in after the scope is locked. We pull both roofing and solar permits together when the project includes both, which cuts total permit time by weeks. Once permits clear, our crew completes roofing first, then installs solar racking and panels on a dry, inspected surface. PG&E interconnection paperwork runs parallel. City inspection closes the job out cleanly.
— More from Green Conception
More Services for Hillsborough Homes



Gutter Replacement and Drainage
Hillsborough's mature tree canopy and steep lot grades send a lot of debris into gutters. Clogged drainage backs up under fascia boards and accelerates rot - especially on older homes in 94010. Green Conception replaces gutters and downspouts as part of a roofing job so the whole drainage system holds up together. One crew, same visit.
Attic Insulation and Ventilation
Attic ventilation on Hillsborough homes built before 1980 rarely meets current California energy code. Poor airflow forces HVAC to work harder and shortens shingle life from below. Green Conception checks attic insulation and ventilation during the roof inspection - and can upgrade both in the same project window without adding a second contractor to the schedule.
- Why us
Why 4S Ranch Homeowners Choose Green Conception

One Contract, One Warranty, Zero Trade Conflicts
Splitting roofing and solar between two contractors creates gaps - in scheduling, in liability, and in warranty coverage. Green Conception runs both trades under one contract in Hillsborough so nothing falls through. San Mateo County's permit process moves faster when one applicant owns both scopes.
"Hillsborough roofs are older and the fog gets into everything. I'd rather replace the underlayment right the first time than have a solar customer call me two years later with a leak under their panels."
— Nick K. · Founder
Belmont (94002)
San Mateo (94401)
Millbrae (94030)
San Bruno (94066)
Green Conception Roofing and Solar Service in Hillsborough, CA
Green Conception has worked across Hillsborough's 94010 neighborhoods - from the large Spanish-style estates near Floribunda Avenue to the mid-century ranches closer to the Crystal Springs Road corridor. Older housing stock in this ZIP runs into the same issues repeatedly: aging underlayment, corroded flashing, and rooflines that weren't designed with solar in mind. Green Conception handles both trades under one contract, pulls San Mateo County permits correctly the first time, and doesn't start work until the written quote is approved. No deposit, no pressure.
Burlingame (94010)
— Common questions
Hillsborough Homeowners Ask Us These Questions Most
Does roofing need replacing before solar installation?
Yes - if your roof has less than 10 years of life left, replace it before installing solar panels. Pulling panels off to do a mid-life roof replacement in Hillsborough costs an extra $2,000 to $4,000 in labor alone. Green Conception checks roof condition during the free inspection and flags this before you commit to anything.
How long does a combined roofing and solar permit take in San Mateo County?
Standard residential permits in San Mateo County take 3-5 business days for straightforward scopes. Hillsborough properties with historic designations or HOA overlay zones can add review time. Green Conception files both permits together and tracks status daily so no one's waiting on paperwork that already cleared.
What roofing materials work best in Hillsborough's fog belt?
Composition shingles rated for Class 4 impact and high-humidity environments hold up best in 94010's fog microclimate. Concrete tile works well on steeper-pitch Hillsborough estates but adds structural load considerations. Green Conception matches material to your existing roof profile and slope - not just what's cheapest to install.
Will my homeowner's insurance cover roof replacement in Hillsborough?
It depends on the cause of damage and your policy's age-based depreciation schedule. Hillsborough insurers often apply significant depreciation to roofs over 15 years old. Green Conception documents damage with photos and written scope details you can submit directly to your adjuster - which improves claim outcomes without us making any guarantees on your behalf.
How does One Stop Solar and Roofing save money versus two separate contractors?
One permit application instead of two cuts county fees by $300 to $600 on most Hillsborough projects. One crew mobilization instead of two saves scheduling days. One warranty covers both systems - no gray area when something needs attention years later. That's the core logic behind One Stop Solar and Roofing in 94010.
What's the typical cost of a full roof replacement in Hillsborough?
Most full replacements on Hillsborough single-family homes run $18,000 to $45,000 depending on square footage, pitch, and material. Spanish tile and steep-slope jobs push toward the top of that range. Green Conception provides a fixed written quote after the free inspection - no estimates that balloon after demo begins.
Does Green Conception handle PG&E interconnection for solar in Hillsborough?
Yes. Green Conception files PG&E interconnection applications and tracks approval on every solar job in 94010. PG&E interconnection for residential solar typically takes 2-6 weeks after city inspection closes. You don't need to contact PG&E directly - we handle the queue and notify you when permission to operate arrives.
Is Green Conception licensed to work in San Mateo County?
Green Conception holds an active California contractor license and carries full liability insurance on every job in San Mateo County. Permits get pulled for every project - roofing and solar both. You can verify the license number through the California Contractors State License Board before signing anything. No exceptions on documentation.


