Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in Hercules, CA
Roofing in Hercules comes down to three things: wind-driven rain off San Pablo Bay, steep hillside lots above Refugio Valley, and a housing stock that runs heavily to 1970s – 1990s composition shingle homes now reaching the end of their service life. We handle roof installation, replacement, repair, and inspection across Hercules, and every job starts with a written price before any work begins. If you’re wondering what a roof project will cost, or whether your roof can make it through another winter, call (831) 318-8819 and a live person will answer.
Why Hercules Homes Are Different
Hercules sits right on San Pablo Bay, and that location shapes every roof we walk. The marine air moderates temperature swings, which sounds gentle on a roof, but it also drives strong onshore winds and heavy rain events straight into west-facing slopes. On the terraced hillsides above Refugio Valley, we routinely find original 1980s shingle roofs with worn sealant strips and wind-lifted tabs. These roofs look fine from the street. The damage shows up when a winter storm pushes water under the shingles and over a living room ceiling.
The housing stock itself is a mix. Most of what we work on is single-family detached construction from the 1970s through the 1990s, largely composition shingle, and a good portion of it is nearing or past its expected life. The newer hillside subdivisions are a different animal: concrete tile and standing seam metal on steeper pitches, where fastening and underlayment details matter more than they would on a flat lot in El Cerrito. Any roofer who treats a Hercules ridge line like an inland tract home is going to leave leaks behind.
We write the same Garrison Standard into every Hercules job: a written price before work starts, background-checked uniformed technicians on site, and a 365-Day Done Right Promise that puts the guarantee in writing for one full year.
Styles & brands we work with






Our Main Hercules Services
Most Hercules homeowners call us for one of three reasons: they want a roof replaced before it fails, they have a leak that needs repair, or they’re buying or selling and need an inspection with a straight answer. Here’s how each one works in Hercules.
Roofing Company in Hercules
Full roof replacement in Hercules means tearing off what’s there, repairing or replacing decking where rot has set in, laying new underlayment, and installing the new system with drip edge and flashing done properly. On hillside homes, we pay extra attention to fastening patterns because onshore winds pull at shingle tabs and tile edges. Materials come from manufacturer lines including GAF, CertainTeed, and Owens Corning, and we explain the tradeoffs in plain English before you choose. The price goes on paper before any work starts, and it does not move at the door. See Roofing Company in Hercules for full details.

Roof Repair in Hercules
Roof repair in Hercules usually starts as a leak over a ceiling, often after the first heavy rain of the season. We find wind-lifted shingle tabs on west-facing slopes, worn pipe boot flashing, and failed sealant at valleys and penetrations. The fix is specific: replace the damaged material, secure the surrounding area, and confirm the underlayment is still doing its job. Every repair falls under the 365-Day Done Right Promise, which means a free return visit if it fails within the first year. Read more at Roof Repair in Hercules.

Roof Inspection in Hercules
An inspection in Hercules should tell you what the next five years look like, not just what’s leaking today. We walk the roof, check the flashing, gutters, vents, and underlayment condition, and document what we find. For older composition shingle roofs in the 1970s – 1990s tract home neighborhoods, we pay close attention to sealant strip wear and granule loss, both of which point to when replacement will become necessary. You get the findings in plain language, with a written report you can hand to a real estate agent. Details at Roof Inspection in Hercules.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Hercules
We install and service roofing materials from GAF, CertainTeed, Owens Corning, and IKO, among other leading manufacturer lines. Parts for common repair jobs are stocked locally, so most Hercules repairs move quickly once the issue is identified. See our brands for the full list and what we recommend for bay-facing slopes.
See the difference
Before
After
Before
After
Before
AfterPricing for Roofers in Hercules, CA
| Service | Typical range in Hercules |
|---|---|
| Full roof replacement (composition shingle) | $9,000 – $18,000 |
| Full roof replacement (concrete tile) | $22,000 – $45,000+ |
| Full roof replacement (standing seam metal) | $25,000 – $50,000+ |
| Roof repair (minor, shingle or flashing) | $350 – $900 |
| Roof repair (moderate, underlayment or valley work) | $900 – $2,500 |
| Roof inspection (visual, written report) | $150 – $350 |
| Roof inspection (with drone or infrared, steep slope) | $350 – $700 |
| Decking repair (per sheet, if rot found) | $90 – $150 per sheet |
| Flashing replacement (chimney, pipe boot, valley) | $350 – $1,200 |
| Gutter replacement (per linear foot) | $8 – $18 per linear foot |
| Skylight replacement (flush-mount, installed) | $1,200 – $2,800 |
| Attic ventilation upgrade (ridge or box vents) | $350 – $900 |
In Hercules, the two things that push a roof price up are slope and access. Steep hillside lots mean more safety equipment, more time on the roof, and sometimes limited staging space below. West-facing exposure also matters: those slopes take the worst of the bay wind, and we spec fasteners and underlayment to match. Whatever the number is, it gets written down before any work starts, and it does not change at the door.
Neighborhoods We Serve in Hercules
We work throughout Hercules, from the older single-family tracts near downtown to the newer hillside developments and the communities along San Pablo Bay. Most neighborhoods fall within a 30 – 45 minute response window for scheduled work.
- Refugio Valley
- The Tree Streets (Poppy, Lupine, Hemlock area)
- Victoria by the Bay
- Baywood
- Hercules Hills / Promenade area
Service Area – Cities Near Hercules
Brennan Roofing serves Hercules as part of a broader East Bay service area coordinated from the San Francisco Bay Area office. Crews dispatch locally to Hercules and the surrounding communities. We also provide roofing work in El Cerrito, CA, Benicia, CA, Martinez, CA, and Albany, CA.
Serving Hercules, CA - Our Local Coverage Area
We’re based in the Hercules 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 About Roofers in Hercules
We serve Hercules directly. Crews dispatch from the Bay Area office to Hercules neighborhoods including Refugio Valley, Baywood, and Victoria by the Bay, and our pricing reflects real Hercules site conditions, not a generic regional average. Scheduling is done by a live person who knows the local terrain.
Some Hercules neighborhoods, particularly newer hillside subdivisions, have HOAs with specific rules about roofing materials and colors. We can work from your HOA’s approved material list and provide whatever documentation the board requires. The written price you get from us accounts for any HOA-driven material requirements up front.
Repairs and inspections are typically scheduled within a few days to a week. Full replacements depend on material lead times from manufacturers like GAF and CertainTeed, but most Hercules replacement projects are scheduled within two to four weeks. Call (831) 318-8819 and we’ll give you a specific date, in writing, before you commit.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hercules Customers Say
"Replaced the underlayment and drip edge as well as shingles. Many roofers skip that. Everything was explained in writing."
- Barry F."They gave me a warranty in writing and stood behind it."
- Irene G."Replaced a rotted fascia board along with the roof edge. Matches the trim."
- Lou H.