When you call Pacific Coast Roofing for a replacement quote, the first step is a full assessment of your roof at no charge. That visit covers the surface, the penetrations, the drainage perimeter, and the attic. We document what we find, explain what it means, and give you a written quote. No obligation to move forward.
The assessment is free because it is how we build an accurate quote. We cannot give you a number without seeing the roof. A lot of homeowners have called other contractors and received a figure over the phone or after a 15-minute drive-by. That number is not accurate, and the surprises that follow are why replacement projects run over budget.
We have been doing this in the Bay Area for 30+ years as GAF Certified Applicators. Here is exactly what that visit looks like, zone by zone.
Before We Go Up: The Ground-Level Perimeter Walk
Before we set a ladder, we walk the full perimeter of the house. This takes about 10 minutes and tells us a lot before we ever get on the roof.
We are looking at the ridgeline from multiple angles to check for sagging or uneven sections. A ridge that dips in the middle or follows a wavy line is not a shingle problem. It signals a structural issue with the roof framing or decking below the surface.
From the ground we can also read the gutters. Gutters pulling away from the fascia board usually mean the fascia is rotted. That becomes part of the replacement scope. Staining on the siding below the eaves tells us the gutters have been overflowing regularly, and roofing debris in the foundation plantings, including granules, shingle tabs, and small nails, tells us how much material the existing roof has been shedding.
We also note the roof pitch at this stage. Steep-slope roofs require fall protection equipment and additional labor. That affects the replacement quote.
What We Check on the Roof Surface: Asphalt Shingles and Tile
On an asphalt shingle roof, we are looking past “it looks old.” Age alone is not the whole picture. What we read is the pattern of failure.
Granule loss: The granules embedded in the asphalt protect the shingle mat from UV radiation. When they are gone, the bare asphalt degrades quickly. Localized loss from a fallen branch is one thing. Widespread bald patches across multiple roof planes are a systemic signal. When granules are collecting in the gutters in volume, the roof is near the end of its effective service life. The National Roofing Contractors Association (NRCA) identifies granule loss among the top five early indicators of failure in asphalt shingles.
Cupping and curling: Shingle edges that turn up or down indicate moisture cycling or thermal stress. Both conditions break the water-shedding seal and make the roof vulnerable to wind uplift.
Cracking and brittleness: We flex a corner tab by hand. If it bends, the shingle still has elasticity. If it snaps, it will fail in the next wind event. Brittle asphalt shingles cannot be repaired one at a time.
Blistering and tab separation: Bay Area fog cycles, wet nights followed by dry mornings followed by wet nights again, accelerate the adhesive bond fatigue on 3-tab shingle courses. Lifted tabs in a wind event are the result.
For asphalt shingles, practical service life is 15 to 20 years for 3-tab shingles and 25 to 30 years for architectural (dimensional) shingles. When we are seeing multiple failure modes simultaneously on a roof at or past those ranges, repair does not make sense. The roofing system has failed, not an individual shingle.
For tile roofs: We check for cracked or slipped tiles and the condition of the mortar ridge cap. Individual cracked tiles with an otherwise sound field may be a repair candidate. Missing or spalling mortar at the ridge cap is one of the more common leak paths on older tile systems.
Flashing and Penetrations: Where Roofs Fail Most Often
The roofing system is most vulnerable to leaks wherever anything penetrates the surface. That is where we look hardest.
ℹ️ The Most Misdiagnosed Leak in Bay Area Homes
Cracked or UV-hardened rubber vent boot collars are one of the most common sources of ceiling stains, and homeowners almost always assume the shingles are to blame. Shingles around a failed vent boot often look fine. The boot collar typically lasts 10 to 15 years. On a 25-year architectural shingle roof, it will fail before the shingles do.
Plumbing vent boots: The rubber collar that seals around pipe penetrations typically lasts 10 to 15 years. The asphalt shingles around it may last 25 to 30. A cracked or UV-hardened rubber boot collar is one of the most common sources of the ceiling stains homeowners call us about. They almost always assume the shingles are the problem. Most of the time it is the vent boot.
Chimney flashing: We check the crown condition, the mortar joints, and whether the step flashing and counter flashing have separated from the masonry. On chimneys wider than 30 inches, the 2018 International Residential Code requires a cricket (a peaked diversion structure behind the chimney) to prevent water from pooling. We note whether the chimney cricket is in place and properly flashed.
Skylight curb flashing: We check for separation between the curb apron and the deck, UV-cracked sealant at the corners, and lifted flashing edges. The skylight flashing kit ages independently of the skylight unit itself.
Ridge vents and box vents: We check for obstructions (bird nests are more common than homeowners expect), proper nailing, and sealant age at all roof penetrations.
Step flashing and valley flashing: Step flashing along wall-to-roof intersections separates and rusts over time. Individual pieces woven between shingle courses age at different rates; when one fails, others nearby are usually not far behind. Valley flashing carries three to four times the water volume of the surrounding roof field. We check for rust, prior caulk repairs (a sign of a patched leak rather than a fixed one), and whether the current valley treatment will hold through another replacement cycle.
Bay Area note: Galvanized steel flashing corrodes faster in salt-laden coastal air. Homes in Richmond, Alameda, Hayward, and Oakland neighborhoods close to the estuary see accelerated corrosion compared to inland Contra Costa communities like Walnut Creek and Danville. We document this during the assessment and can specify aluminum or stainless flashing in the replacement quote at no surprise cost.
Drainage: Gutters, Fascia, Soffit, and Drip Edge
These components fail as a system, so we assess the full perimeter drainage assembly together.
Fascia board: The vertical board at the roof edge anchors the gutter. We probe suspect sections with a screwdriver. Rot in the fascia board compromises gutter pitch and lets water wick back under the drip edge. On Bay Area homes, north-facing eaves stay wet year-round and are almost always the first place we find fascia rot. It is predictable enough that we budget for it on older Contra Costa and Alameda County homes before we even get on the roof.
Soffit vents: Delaminated or rotted soffit panels tell us the gutter has been overflowing into the overhang assembly for an extended period. Blocked soffit vents also show up here, and that matters for what we find in the attic.
Drip edge flashing: The metal edge flashing at the eave routes water off the fascia board and into the gutter. Older roofs installed without drip edge flashing show fascia damage from water traveling back under the sheathing. Drip edge flashing is always replaced as part of a proper roof replacement.
Gutters: We are not gutter contractors, but we assess whether the gutters are in a condition compatible with the new roof. Gutters that are pulling away, heavily corroded, or undersized for the roof drainage area will work against the new roof’s performance. We note what we see and often recommend timing gutter replacement with the roof replacement project.
The Roof Deck: What’s Under the Surface (and the One Thing We Cannot Know Until Tear-Off)
The roof deck is the structural sheathing, either OSB (oriented strand board) or plywood, that everything else sits on. We evaluate deck condition from two positions: walking the surface to feel for soft spots, and looking at the underside from the attic.
⚠️ Watch Out for This on Replacement Quotes
A quote that does not include a per-sheet contingency line for decking is an incomplete quote. It means the contractor is either not checking the attic or planning to absorb surprises into the final invoice. Ask before you sign: “What is your process when you find damaged decking at tear-off, and how is that priced?”
From above, we can feel for spongy sections that indicate rot or delamination. From the attic, we can see moisture staining, rot at the eaves, and damage concentrated around chimneys and skylights where flashing failures have focused water over the years.
We also note the layer count. Sometimes a “new roof” was installed over an old one. Multiple roof layers are no longer considered best practice. They affect tear-off labor and disposal cost, and they are common on Bay Area homes that have been re-roofed more than once without a full tear-off.
The honest unknown: You do not know the full extent of decking damage until the old roof comes off. A responsible replacement quote includes a per-sheet contingency line item for decking replacement discovered during tear-off. We price that per 4×8 sheet of OSB or plywood, document findings with photos before proceeding, and use a written change order so you authorize any additional scope before we continue. Under the 2018 International Residential Code, any compromised roof decking found at tear-off must be replaced before the new installation begins. A contractor who skips that step is creating a warranty problem and a liability.
On older Bay Area housing stock, particularly 1950s through 1970s Contra Costa ranch homes, finding some deck repair at the eaves and around chimneys is common. We budget for it upfront and communicate what we find before we proceed.
Inside the Attic: What the Surface Cannot Tell Us
A complete roof replacement assessment includes the attic. We need it to make the quote accurate.
💡 Check This Before Your Assessment Visit
Pull back the attic insulation near the eaves on one side of the house. If insulation is pushed all the way to the roof sheathing and blocking the soffit vents, your attic is not getting intake air regardless of what ridge venting is installed. It takes two minutes to spot and is worth noting for the roofer when they arrive.
Roof decking from below: Delamination, rot staining, and moisture damage visible on the underside of the sheathing tell us things the surface walk cannot. We check especially at the eaves, around chimneys and skylights, and at the ridge board.
Daylight intrusion: Any light visible through the decking or at the ridge indicates open gaps. That is a water entry point. In East Bay hill zones that sit within or adjacent to Very High Fire Hazard Severity Zones (VHFHSZ) designated by Cal Fire, it is also an ember intrusion path.
Moisture staining patterns: Diagonal staining on rafters typically points to a flashing failure above. Staining concentrated at the eaves points to gutter overflow or, in colder Bay Area microclimates, past ice damming. The staining pattern tells us where the leak originates.
Attic ventilation balance: We check whether there is functional soffit intake and ridge exhaust. A common situation in the Bay Area: a previous contractor added a continuous ridge vent, but the soffit vents are blocked by insulation or painted over. Without intake air at the soffit, a ridge vent does almost nothing. The FHA minimum ventilation standard is 1 square foot of Net Free Area (NFA) per 150 square feet of attic floor, split evenly between intake and exhaust. Poor attic ventilation traps heat in summer, which accelerates shingle aging from below, and drives moisture into the roof decking in winter. It can cut years off a new roof’s service life if it is not addressed during the replacement project.
Ringers: Nails driven through the decking that leave exposed steel points in the attic collect condensation over time. Present on some older roofs.
What We Find and What It Means
Not every roof we assess needs to be replaced. When we finish the walkthrough, findings fall into one of three categories.
⭐ How the Assessment Ends
Every assessment concludes with one of three outcomes: replace now, plan to replace within a few years, or repair only (tile roofs). There is no sales pitch built into the process. The written quote you receive reflects what we actually found, not what produces the largest project. If the roof has more life in it, we say so.
Replacement makes sense now: Multiple failure modes present simultaneously. Widespread granule loss, flashing failures at multiple penetrations, active moisture in the attic, asphalt shingles at or past their expected service life. Repairing any one of these does not fix the roofing system. The roof has aged out.
Replacement coming within the next few years: The roof is aging but has not failed across the board. We tell you what the early indicators are and what the likely timeline looks like so you can plan the budget.
Repair candidate (tile roofs only): If a tile assessment shows isolated cracked tiles with a sound field otherwise, roof repair may be the right answer for now. PCR handles leak repair and preventative maintenance on tile systems. We tell you when that is the better call.
If you are not yet sure whether you are seeing signs that warrant calling at all, the companion post on the benefits of a professional roof assessment walks through what homeowners can evaluate themselves before picking up the phone.
After the walkthrough, you get a written quote with line-item scope, material specifications (manufacturer, product line, color options), per-sheet contingency pricing for decking, warranty terms, project timeline, and our CSLB (Contractors State License Board) license number. Photos of what we found are available with the quote.
Bay Area: What We Look at Differently Here
Bay Area roofs have conditions that standard roofing content does not cover. Here is what changes in our assessment for this region.
Salt air corrosion zones: The closer to the San Francisco Bay, the faster galvanized steel flashing, fasteners, and gutter hangers corrode. We account for this in material specifications for roof replacements in Richmond, Alameda, Hayward, and Newark-area neighborhoods.
Fog moisture and moss growth: Year-round coastal fog creates near-constant surface moisture on north-facing and shaded roof planes. Light algae is cosmetic. Dense moss that has lifted shingle edges is not. Moss mats trap moisture against the shingle surface, accelerating granule loss and degrading the asphalt mat below.
Fire zone compliance: Portions of PCR’s service area sit in or adjacent to Very High Fire Hazard Severity Zones designated by Cal Fire. California Building Code Chapter 7A requires Class A fire-rated roofing material in those zones. GAF and CertainTeed architectural shingles carry the ASTM E108 Class A fire rating that meets this standard. Berkeley hills, Oakland hills, Orinda, Lafayette, and parts of the Contra Costa foothill cities are in or near these fire zones. If the existing roof does not meet Class A requirements, the replacement must address it.
HOA requirements: East Bay homeowners associations in Danville, Alamo, and parts of Walnut Creek may require board approval before a permit is pulled and have specific requirements for roofing color and profile. We factor the HOA approval timeline into the replacement project schedule.
After the Assessment: What Comes Next
We walk you through what we found and explain what it means. You get a written quote. No pressure to decide on the spot.
If you want to move forward, we discuss material options, confirm the timeline, and schedule the project around your calendar. Most Bay Area roof replacement projects are scheduled two to four weeks out depending on season and crew availability. PCR replaces roofs 12 months a year.
If the roof is in better shape than you expected, we tell you that. Not every roof we assess needs replacement. Our job is to tell you what we found, not to sell you a project you do not need.
Call (510) 912-5454 or use the contact form to schedule your free assessment. We come out, walk the roof, check the attic, document what we find, and give you a written quote. No charge for the visit. No obligation to proceed.
Questions About the Assessment Process
Is the assessment really free?
Yes. When you call Pacific Coast Roofing for a replacement quote, the assessment is how we build an accurate quote. There is no charge for the visit. What we are doing during that time is evaluating every component of the roofing system needed to price the job correctly.
How long does a roof assessment take?
For a standard single-family home, plan on one to two hours. Larger homes, complex rooflines, or roofs with multiple dormers and penetrations take longer. If we need attic access, add 15 to 20 minutes.
Do I need to be home during the assessment?
Yes, for attic access. We need to get into the attic as part of a complete roof assessment. We will confirm a time window that works for you when you schedule.
What if my roof does not need replacement?
We tell you. If the roof has more life in it, we say so and explain what we saw. If you have a tile roof and the issue is isolated damage, repair may be the right answer for now. We are not going to recommend a roof replacement if it is not warranted.
How is this different from the roof check a home inspector does?
A home inspector’s roof assessment is a general condition check, typically from the eaves or a single ladder position, and it feeds a written report for a real estate transaction. Our assessment is a full working evaluation: we walk the entire surface, check the attic, and document every component of the roofing system specifically to price a replacement accurately. Different tool for a different purpose.
