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 Union City, CA
Roofing in Union City, CA has to answer for two things at once: bay salt air moving in from the west and wind coming through the Golden Gate gap from the north. Most of the housing stock here was built between the 1950s and 1970s, which means low-slope designs, original composition shingles, and a lot of roof penetrations that test flashing during winter storms. We’re Brennan Roofing, and every Union City job starts with a written price before any work begins. Call (669) 238-2101 to schedule a free estimate.
Why Union City Homes Are Different
Union City sits in a narrow band between San Francisco Bay and the East Bay hills. That position creates two distinct roofing problems. First, marine air carries salt and moisture that accelerates corrosion on flashing, fasteners, and metal edges, especially on homes west of Mission Boulevard. Second, the Golden Gate wind gap funnels strong afternoon gusts into town that lift poorly attached shingles and expose nail patterns over time.
The housing stock compounds this. Mission Ranch and Contempo are full of 1970s tract homes, many still wearing original wood shake or the first composition roof ever installed. Wood shake in those neighborhoods is now a fire hazard under current WUI codes, and replacement must move to Class A materials. The low-slope designs common in the older flat sections of Union City hold water after heavy rain, which leads to ponding, UV breakdown, and leaks around pipes and vents. Newer hillside subdivisions present a different challenge: steeper pitches, tile or metal, and drainage demands that follow the terrain into the bay.
Material choices matter here. We install Atlas, GAF, and Tamko product lines because they hold up to salt exposure and wind uplift when decking and underlayment are done correctly underneath. A roof that works in Pleasanton will not automatically work five blocks from the bay.
Styles & brands we work with
Our Main Union City Services
Homeowners in Union City call us for two things more than anything else: a full roof that can handle bay wind and fire code, and repairs on older homes where flashing and low-slope sections have started to fail. Roof inspections round out the work, and each service has its own page for Union City.
Roofing Company in Union City
A new roof in Union City means starting from the decking up: underlayment, drip edge, flashing, and the shingle or tile system going on top. On older Mission Ranch homes, we’re often pulling off 50-year-old shake and bringing the decking up to current wind-uplift standards before anything else. On hillside homes, the pitch and drainage path dictate the underlayment detail. Every install gets a written price first and the 365-Day Done Right Promise in writing. Roofing Company in Union City
Roof Repair in Union City
Repair work in Union City tends to cluster around two failures: flashing that has corroded from years of bay salt air, and low-slope sections that pond water and find a way through. We replace flashing with materials matched to the roof type, rework drain points on flat sections, and reseal penetrations the right way. The price goes on paper before we touch the roof, and the repair is guaranteed in writing for a full year. Roof Repair in Union City
Roof Inspection in Union City
An inspection in Union City should look for more than missing shingles. We check wind-uplift fastener patterns on the windward side, corrosion on flashing near the bay-influenced side of the house, and ponding evidence on low-slope roofs. If you’re buying or selling in the Contempo or Mission Ranch areas, the inspection gives you a written condition report you can use in the transaction. Roof Inspection in Union City
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 Union City
We work with Atlas, Tamko, and GAF manufacturer lines, and parts for all three are stocked locally so repair work in Union City moves without a long material wait. See our brands for the full range we service and what each option costs per square.
See the difference
Before
After
Before
After
Before
AfterPricing for Roofers in Union City, CA
| Service | Typical range in Union City |
|---|---|
| Full roof replacement (composition shingle) | $9,800 – $18,500 |
| Full roof replacement (tile or metal) | $22,000 – $45,000+ |
| Wood shake removal and Class A rebuild | $16,500 – $31,000 |
| Flashing repair (single area) | $325 – $775 |
| Low-slope ponding rework | $1,200 – $3,800 |
| Roof penetration reseal (pipes, vents) | $180 – $420 per penetration |
| Underlayment replacement (partial) | $1,800 – $4,200 |
| Drip edge replacement | $6 – $12 per linear foot |
| Roof inspection | $195 – $425 |
| Emergency tarp or temporary seal | $450 – $1,100 |
Prices push higher in Union City when the home sits in a WUI zone and requires Class A materials, or when the original decking needs sections replaced before new underlayment goes down. Whatever the number is, it goes on paper before any work starts and it does not move at the door.
Neighborhoods We Serve in Union City
We work across Union City, including the older tract-home neighborhoods west of Mission Boulevard and the newer hillside builds east of it. Our crews are in Union City multiple days a week, so scheduling an estimate is typically a matter of days, not weeks.
- Mission Ranch
- Contempo
- Decoto
- Alvarado
- Seven Hills
Service Area – Cities Near Union City
Beyond Union City, we work in the surrounding communities along the East Bay and the Peninsula. If you’re in Newark, CA, Palo Alto, CA, Atherton, CA, or Stanford, CA, the same written-price standard applies. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and crews serve Union City locally.
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 Roofers in Union City
Most estimates in Union City are scheduled within a few business days. We run crews in Union City throughout the week, so the wait is typically short. Call (669) 238-2101 and a live person will schedule you, not a voicemail.
Most full replacements in Union City require a permit, and we pull it as part of the job. Repairs and inspections generally do not. The written price includes the permit cost so there are no surprises after the work starts. Call (669) 238-2101 if you’re unsure whether your project needs one.
The 365-Day Done Right Promise covers every repair and installation in writing for one full year. If the work fails within that period, we come back and make it right at no charge. No deductibles, no re-quote, no argument.
If your roof in Union City needs real answers and a price on paper, call (669) 238-2101 to schedule your free estimate. A live person answers, and the number you get is the number you’ll see on the written quote.
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 Union City Customers Say
"Storm took off a section of shingles. They were here next morning to tarp it and finished the repair that week."
- Elaine D."Honest inspection with photos. Told me I only needed a repair, not a replacement."
- Sergio P."Ridge vent added and the attic is cooler. Fair price compared to the other two quotes."
- Vernon C.