RoofingArchitectural Shingle Roof Replacement
Location
Antioch
Products
GAF Architectural Shingles
Completed
Jun 25, 2026
Now Booking Fall 2026 Roofing Projects: Schedule Your Inspection
Bay Area Roofing Contractor for Complete Roof Systems
We inspect the roof as one water-management system, then plan the right path for its condition, slope, drainage, ventilation, and permit needs.
500+ projects
Since 2018
Up to 50-Year
Select GAF Warranties
Get Your Free Roof Inspection
We'll reach out within 3–5 minutes to schedule your inspection.
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Roofing certifications and contractor credentials
Customer-Service Obsessed
Responsive from consultation through project closeout
Architect and general contractor
One accountable team
Licensed, bonded, and insured
Verified business credentials
Residential roofing is the complete system that sheds water from a home. It includes the roof covering, underlayment, flashing, penetrations, ventilation, drainage, and roof deck. A roofing contractor should inspect how these parts work together before recommending maintenance, repair, or replacement.
For detailed pricing factors, use our 2026 Bay Area roof replacement cost guide.
Reviewed by Alexander Hamilton Li, Architect & General Contractor · CSLB #1078806 · Updated August 2026
Your next step
Start Your Roof Quote Online
Send your project details for a contractor-prepared quote and inspection. For a fast starting price, use our satellite roof scanner.
Roofing Services 
Choose the Roofing Service You Need
Roof Replacement
A full roof-system scope based on deck condition, water-control details, ventilation, material choice, permits, and cleanup.
Roof Repair
Targeted diagnosis and repair for leaks, damaged roofing, flashing failures, penetrations, and isolated storm damage.
Roof Inspection
A condition review of roofing, flashings, penetrations, drainage, ventilation, and visible deck concerns before a scope is set.
Gutters
Gutter and downspout planning tied to roof edges, drainage paths, fascia condition, discharge points, and site conditions.
Google rating 4.6 ★ from 47 public reviews
Roofing Project Reviews
Homeowner feedback from this type of project.
Chandra Williams
a week ago
Roof City did an excellent job on my roof. They were professional, fast, efficient, and clean. They over- delivered on their promise to do a five- star job in two days, which included all materials and permits needed. They deserve a 10 star rating 🌟 ✨ 💫🌟✨💫🌟✨💫☀️🙌🏾😀👍🏾
Abe Mendoza
a month ago
Very Satisfied with Hamilton Exteriors work replacing roof. Good price and flexible payment plans. They took care of the permits and cleanup. Great communication and response times. Highly recommend.
Ernesto Garlitos
a month ago
The team dis an excellent job on our roof. Carlos and his team are punctual, communicative and kept the worksite clean throughout the project. There was a slight delay in the beginning but the whole process felt smooth and stress free. Alex was generous enough to add in extra service worth $759. Highly recommended, honest roofing work.
Laarni yet
a month ago
They offered a reasonable price for my roof replacement, and overall I’m satisfied with the work. The main issue was that it took quite a while to finish because of the permit process. At one point, I was worried that the roofing materials left at the property might be stolen, so I texted them about it. They responded to my message right away, which I appreciated, and luckily nothing was stolen. Overall, the price was fair, they were responsive when I had concerns, and the project was completed.
Roofing Systems 
Explore Roofing Systems for Your Home
Asphalt Shingles
GAF shingle systems planned around roof geometry, ventilation, flashing, color, and applicable warranty options.
GAF Energy Solar Roofing
Timberline Solar ES 2 energy shingles coordinated with compatible Timberline roofing, electrical design, permits, and utility requirements.
Metal Roofing
Standing-seam and metal-panel options reviewed for slope, penetrations, drainage, finish, and connection details.
Tile Roofing
Clay and concrete tile systems planned around structural capacity, underlayment, flashing, drainage, and replacement access.
Torch-Down Roofing
Modified-bitumen roofing for eligible low-slope sections, planned around deck condition, drainage, penetrations, flashing, and application details.
TPO Roofing
Single-ply TPO membrane systems planned around attachment, insulation, heat-welded seams, drainage, penetrations, and edge details.
Project Management How Hamilton Exteriors
How Hamilton Exteriors
Manages Your Roofing Project
Roof and Deck Review
We inspect the roof covering, accessible deck conditions, flashing, penetrations, ventilation, and drainage before defining the scope.
Roof System Scope
Your proposal identifies tear-off, deck repairs, underlayment, flashing, ventilation, selected GAF materials, permits, and cleanup.
Weather-Tight Installation
We coordinate dry-in, roofing installation, flashing details, ventilation, daily cleanup, required inspections, and site protection.
Warranty and Closeout
We review eligible GAF product and workmanship warranty terms, complete final checks, and provide the project closeout information.
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Compare Roofing Systems for Your Home
Swipe to compare all options.
| Feature | Asphalt Shingles | Metal Roofing | Tile Roofing | Torch-Down | TPO | Integrated Solar |
|---|---|---|---|---|---|---|
| Roof geometry | Sloped roofs | Sloped roofs | Sloped roofs | Low-slope roof sections | Low-slope roof sections | Compatible sloped roof sections |
| Early design review | Deck, ventilation, and flashing | Panel layout and penetrations | Structural load and underlayment | Deck, slope, drainage, and application details | Deck, insulation, attachment, and drainage | Solar access and electrical layout |
| Main coordination point | Roof-system warranty | Panel and finish details | Tile access and replacement | Membrane layers, seams, and flashings | Attachment, welded seams, and edge details | Roofing and electrical scope |
| Visual character | Architectural shingle courses | Clean standing seams | Clay or concrete profiles | Granulated or smooth membrane | Light-colored single-ply membrane | Low-profile energy shingles |
| Dedicated guide | Asphalt shingles | Metal roofing | Tile roofing | Low-slope roofing | Low-slope roofing | GAF solar roofing |
Roofing Financing
Plan Your Roof Project With Approved Credit
Financing may be available for eligible roof replacements and larger roofing projects with approved credit. During your roof consultation, we review the scope and explain current lender programs, terms, and payment timing.
Ask which current options fit your roofing project.
Call Now (650) 977-3351 Service Areas
Roofing Contractors by City
Frequently Asked Questions
Didn't find the answer to your question? Call Now (650) 977-3351
What does a Northern California roofing contractor handle?
A roofing contractor should evaluate the roof covering, underlayment, deck, flashing, penetrations, ventilation, and drainage. Hamilton Exteriors uses that system review to define the work, materials, permit needs, inspection steps, and warranty path for the project.
How do you choose the right roofing system?
We review roof slope, deck condition, structural limits, drainage, ventilation, fire requirements, solar access, visual goals, and maintenance needs. We then explain which roof-system paths fit the home and direct you to the detailed service page for that option.
Are roof inspection, repair, and replacement separate services?
Yes. An inspection documents condition. A repair addresses a defined failure. A replacement renews the broader roof system. Each service has a separate scope and page so you can start with the path that matches the current condition.
Can you coordinate GAF solar roofing with the roof?
Yes. Hamilton Exteriors is a GAF-certified solar installer. We coordinate Timberline Solar ES 2 roofing layout, electrical design, permits, utility requirements, installation, and commissioning. Product availability and roof suitability require a project-specific review.
Do you handle roofing permits and inspections?
Yes. We identify the permit path, prepare the roofing scope, coordinate required documents, schedule inspections, and close the permit after approved work. Requirements vary by jurisdiction and project scope, so we confirm them before work begins.
Your Next Step
Plan Your Project With a Clear Scope
Financing may be available with approved credit for eligible projects.
Tell us about your project. We usually call within 3–5 minutes to schedule the next step.
21634 Redwood Rd Unit F, Castro Valley, CA 94546
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