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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Inspection Across Union City
If you’re searching for a roof inspection in Union City, the short answer is this: a standard residential inspection runs $180 – $350 depending on roof size, slope, and accessibility, and most can be scheduled within a few days. Brennan Roofing Co San Jose performs inspections that go beyond a visual once-over: we document nailing patterns, flashing condition, underlayment integrity, and wind-uplift compliance against current Union City code requirements. Call (669) 238-2101 and we’ll put a written price in your hand before anyone steps onto a ladder.
Union City sits directly in the Golden Gate wind gap. That single fact reshapes what a roof inspection in this city has to verify. Homes here get hit with afternoon gusts that test every shingle edge and flashing seam, and a roof that looks fine from the curb can be one storm away from failure. Our team knows the tract layouts between Alvarado-Niles Road and Mission Boulevard, the 1950s-1970s builds in Mission Ranch and Contempo, and the hillside lots where drainage and wind exposure combine to stress roofs differently than the flatlands east of the BART line.
We assess the roof the way a Union City building inspector would, then explain what we found in plain English. You get photos, measurements, and a written quote. No pressure, no vague warnings, no upsell theater.
Why Brennan Roofing Co San Jose Is Union City’s Preferred Roof Inspection Company
Travis Oakley sets the standard for every inspection we perform, and that standard is named: The Garrison Standard. It means a written price before any work starts, background-checked uniformed technicians who arrive in the promised window, and a full-year written guarantee on every job we do. If a repair we recommended fails within that year, we come back free. In writing. That’s The 365-Day Done Right Promise, and it applies to every roof we touch in Union City.
Homeowners in Union City have told us the same story more times than we can count: a roofer showed up late or not at all, quoted one number on the phone and another at the door, or left the job site looking like a storm passed through. We built our process to be the opposite of that experience. Dispatch and scheduling are coordinated from the brand’s San Francisco Bay Area office, and crews serve Union City locally, so you’re not waiting on someone driving up from the South Bay.
When you call (669) 238-2101, a live person answers. Always. No voicemail tree, no callback queue, no “we’ll get back to you within 48 hours.” You describe the issue, we book the inspection, and the technician shows up in uniform with a truck stocked for the common roof types in Union City.
Union City’s housing stock is specific. We know how to read a 1960s low-slope tract roof with original composition shingles, and we know what a 1970s wood shake roof in Contempo needs under current WUI codes. That local fluency changes the quality of the inspection you get. A generalist roofer might walk a roof and mark it “fair condition.” We walk the same roof and tell you which nailing pattern is failing, where the drip edge is missing, and what that means for your insurance claim after the next winter storm.
Styles & brands we work with






Roof Estimate in Union City
A roof estimate in Union City is not the same as a roof inspection. The inspection tells you what’s wrong. The estimate tells you exactly what it will cost to make it right, in writing, before any work starts. When a Union City homeowner asks us for a roof estimate, we build it from the inspection findings: decking condition, underlayment type, flashing materials, ridge vent compatibility, and the specific wind-uplift nailing pattern the roof needs to meet local code.
Most full roof replacement estimates in Union City range from $9,500 – $18,000 for an average 1,800-2,200 sq ft single-story home, depending on material choice and whether a tear-off is required. Repairs typically run $450 – $2,500 depending on scope. The estimate you get from us is a fixed number. It does not move at the door. If we find something unexpected during the work, we stop, put the new price on paper, and get your sign-off before we proceed.
What Goes Into the Number
We price by the square foot of actual roof surface, not the home’s living area. That matters in Union City because many 1950s-1970s tract homes have low-slope roofs with more square footage than their footprints suggest. The estimate accounts for slope, number of penetrations like vents and skylights, and whether the existing roof has one layer or two.
Materials and Labor, Separated
We show you line items for materials from GAF, CertainTeed, and Owens Corning, along with labor, tear-off, hauling, and disposal. You choose the material that fits your budget and your roof’s exposure to Golden Gate winds. We explain the differences plainly: architectural shingles rated for 130 mph need the right nail count per shingle, or the rating means nothing.
Free Roof Inspection in Union City
A free roof inspection in Union City is our way of letting you get a clear picture of your roof’s condition without committing to repairs. We’ll schedule someone to walk the roof, photograph every area of concern, and give you a straight answer about what needs attention now, what can wait, and what will fail under the next heavy rain.
The free inspection covers the same ground as a paid one: shingle condition, flashing at chimneys and pipe boots, gutter and downspout function, drip edge installation, underlayment exposure, and wind-uplift nailing patterns. The difference is that we’re not charging for the visit, because we’d rather you know what you’re dealing with than guess. If we find nothing wrong, we’ll tell you that too. There’s no invented problem, no pressure to replace a roof that still has years in it.
Documentation You Can Use
Every free inspection comes with a written summary and photos. If you’re filing an insurance claim, negotiating a home sale, or just keeping records for your own peace of mind, you get documentation that holds value. In Union City, a dated inspection report that shows wind-uplift nailing patterns and flashing condition can be the difference between a smooth claim and a denied one.
When a Free Inspection Finds Real Damage
If we find damage, we’ll quote the repair with the same fixed-price discipline: the number goes on paper before work starts, and it does not change unless the scope changes with your written approval. We don’t do change orders at the door, and we don’t ‘discover’ problems mid-job that should have been caught during inspection.
Trusted Brands We Service in Union City
We install and service roofing systems from GAF, CertainTeed, and Owens Corning, and we keep common parts for Union City roofs either on the truck or readily available through local supply yards. That means we can start a repair the same week rather than waiting a week for a special-order. For Union City’s older tract homes, we frequently recommend GAF Timberline shingles with the correct nail pattern for the wind zone. For hillside homes facing afternoon gusts, CertainTeed’s Landmark Pro line offers higher wind ratings that hold up better in the Golden Gate gap. We explain the options without brand worship: the right material is the one that meets code, fits your budget, and matches your roof’s actual exposure.
Common Roof Inspection Problems We See in Union City Homes
- Wind-uplift nailing failures on overlap roofs. In Mission Ranch and Contempo, many homes had architectural shingles installed over original wood shake without a tear-off. The original decking can’t hold nails at the spacing required for 130 mph shingles, and the result is a roof that looks fine but loses shingles in the first strong Golden Gate gust.
- Missing drip edge on low-slope eaves. Drip edge is the metal flashing at the roof’s edge that keeps water from wicking back into the fascia and soffit. Older Union City tract homes often lack it entirely, and we see the evidence as rotted fascia boards and stained eaves after winter rain.
- Deteriorated decking hidden under old composition shingles. A roof can look solid from the top and be spongy underneath. On 1950s-1970s low-slope roofs with original composition shingles, water that gets under the shingles sits against the plywood decking and rots it from above. An inspector who only looks at shingle condition misses this entirely.
- Flashing failures around roof penetrations. Union City homes from this era have more roof penetrations than modern designs: multiple vents, chimneys, skylights, and pipe boots. Each penetration is a seam, and every seam is a potential water entry point. We find cracked pipe boots and lifted chimney flashing on a significant share of inspections in this city.
See the difference
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AfterPricing for Roof Inspection in Union City, CA
A standard roof inspection in Union City runs $180 – $350 for most single-family homes. Larger homes with steep slopes, multiple stories, or tile roofing may run $350 – $500 because the inspection takes longer and requires extra safety equipment. The free inspection option covers the same visual scope at no cost when you’re evaluating your roof for repairs or replacement with us.
What affects the price: roof size and complexity, number of penetrations to check, whether the attic is accessible for a decking inspection, and whether we need to pull a shingle sample to verify nailing patterns. We don’t charge extra for the written report, the photos, or the line-by-line explanation of findings. If you proceed with repairs or replacement, we credit the inspection fee toward the job.
Call (669) 238-2101 for an exact quote on your roof. Estimates are free, always in writing, and always before any work starts.
Roof Inspection Issues Unique to Union City’s Wind Gap
Union City sits directly in the Golden Gate wind gap. That’s not a marketing line; it’s a geological and meteorological fact. Air funneling through the Golden Gate accelerates as it spills across the Bay and into the East Bay, and Union City catches a lot of it. For roofing, that means wind-uplift is the primary failure mode, not rain. A roof that would last 25 years in Fremont or Hayward might lose shingles in five years here if the nailing pattern is wrong.
Current Union City building code requires shingles to be nailed at six nails per shingle in high-wind zones when using certain 130-mph-rated products, and the nailing must penetrate through the shingle into solid decking. In the 1950s-1970s tract developments along Alvarado-Niles Road and the Mission Boulevard corridor, the original decking was often 3/8″ plywood that’s now delaminating. Nails driven into that decking simply don’t hold. Worse, some of these homes had original wood shake roofs overlayed with composition shingles, and an overlay installation can’t be nailed to wind-uplift standard at all because the existing shake creates an uneven substrate.
In a specific case from the Contempo neighborhood, our crew inspected a 1970s home where the original wood shake roof had been overlayed with architectural shingles without a tear-off. We found missing drip edge on the low-slope eaves and deteriorated decking at the valleys, which had allowed water to wick into the soffit. After documenting the wind-uplift nailing pattern and the saturated underlayment, we recommended a full tear-off with ice and water shield at the eaves and a ridge vent to meet current Union City wind-load requirements.
A roof inspection in Union City that doesn’t verify nailing patterns is not a real inspection. It’s a visual check that will give you false confidence. We verify nail count, nail placement, decking condition, and underlayment integrity because those are the things that fail when the wind hits 40 mph from the west in November.
What a Compliant Union City Roof Inspection Must Verify
If you want documented compliance with Union City’s wind-uplift requirements, the inspection has to check specific things. Not all inspectors do this. Here’s what we verify, and what a compliant quote includes that a cheap one leaves out:
- Nail count per shingle. The manufacturer’s wind rating assumes six nails per shingle in high-wind zones. We pull a sample shingle and count. If it’s four nails, the warranty is void and the roof won’t hold in a Golden Gate gust.
- Decking thickness and condition. The 3/8″ plywood common in Union City’s older tract homes can’t hold nails reliably once it delaminates. We check from the attic side and by walking the roof for soft spots.
- Underlayment and ice and water shield at eaves and valleys. Union City’s winter storms bring heavy rain that tests flashing around the many penetrations in older homes. Ice and water shield at eaves and valleys is code in most local jurisdictions, and a cheap quote often omits it to hit a lower number.
- Drip edge installation. Missing drip edge at low-slope eaves is a common finding in Union City, and it’s a code requirement. A compliant quote includes it; a cheap one leaves it out and hopes you don’t notice.
- Flashing at all penetrations. Chimneys, pipe boots, skylights, and vents. Every penetration gets photographed and evaluated. Cracked pipe boots are the most common failure we find on Union City roofs.
We Also Serve Cities Near Union City
In addition to Roof Inspection in Union City, our crews cover nearby communities including Newark, Palo Alto, Atherton, and Stanford. If you’re in one of those areas, our Roof Inspection team brings the same fixed-price discipline and wind-uplift documentation standard we apply in Union City. Call (669) 238-2101 to schedule.
Serving Union City, CA - Our Local Coverage Area
We’re based in the Union City 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 Roof Inspection in Union City
No, a roof inspection itself does not require a permit in Union City. The inspection is a diagnostic visit. However, if the inspection leads to repairs or a full replacement, most work that involves decking repair, structural changes, or a full tear-off and re-roof does require a building permit. We handle the permit application and coordinate with the city’s building department, and the inspection report we give you can serve as supporting documentation for the permit. Call (669) 238-2101 and we’ll walk you through exactly what your project needs.
Union City’s wind-load requirements mean the inspector must verify nail count per shingle, decking condition, and underlayment at eaves and valleys. A roof that meets code in a sheltered valley location may not meet code in the Golden Gate wind gap. We check the actual installation against the manufacturer’s wind-rating requirements, because a 130-mph-rated shingle with four nails is not a 130-mph-rated roof. Call (669) 238-2101 for an inspection that documents what your roof actually has, not what the label says.
A free roof inspection tells you the condition of your roof. A paid roof estimate gives you a written, line-item price to fix it. Our free inspection covers the same visual scope: shingles, flashing, drip edge, underlayment, nailing patterns. The paid estimate builds on that with material pricing, labor, tear-off if needed, permit fees, and a fixed number that doesn’t move at the door. If you’re deciding whether to repair or replace, we recommend starting with the free inspection. Call (669) 238-2101 to book one.
Older hillside homes in Union City face wind exposure from multiple directions, and their roofs often have steeper slopes and more complex geometry than the flatland tract homes. The drainage patterns are different, and water that pools at a valley or behind a chimney flashing does more damage faster on a hillside. We inspect these roofs for wind-uplift nailing, flashing integrity at every transition point, and drainage function. A roof that passes inspection on a flat lot might fail on a hillside, and conversely, a hillside roof may have issues a flatland inspector never checks. Call (669) 238-2101 if your hillside home hasn’t had a documented inspection in the last three years.
Insurance adjusters respond to documentation. A dated inspection report showing wind-uplift nailing patterns, flashing condition, and decking integrity establishes what your roof looked like before the storm. After a storm, if you claim wind damage, that pre-storm documentation is evidence the damage was caused by the storm, not by pre-existing neglect. Without it, insurers often deny wind claims by pointing to old roof age or deferred maintenance. A Union City homeowner who gets a documented inspection after a storm has a harder time proving the hail or wind caused the failure. Call (669) 238-2101 to schedule your inspection before the next winter storm season.
Need a straight answer about your roof? Call (669) 238-2101 for a free estimate. We’ll put the price in writing before any work starts, and we’ll stand behind it with the 365-Day Done Right Promise.
Written by Travis Oakley, Owner at Brennan Roofing Co San Jose, serving Union City under The Garrison Standard.