Roof Replacement in Union City - Free Roof Inspection, Written Price

Fast, Reliable Roof Replacement Across Union City

A full roof replacement on a Union City home typically runs between $14,000 and $28,000 depending on size, pitch, decking condition, and the shingle system you choose. Most tear-offs in the city’s 1950s-to-1980s tract neighborhoods uncover hidden decking damage that changes the final number. That’s why we write a price before any work starts, and if the tear-off reveals something the original quote didn’t cover, you see the change order in writing and approve it before we touch it. Our crews work throughout Union City, from the older Decoto streets off Alvarado-Niles Road to the newer subdivisions east of Mission Boulevard. Call (424) 766-4937 for a free estimate.

Call (424) 766-4937

Why Birchbark Roofing Is Union City’s Preferred Roof Replacement Company

We are not the biggest roofer in Union City, and that’s fine with us. We are the one that shows up in uniform, background-checked, with shoe covers at the door and drop cloths through the hallway before anyone climbs a ladder. Union City homeowners tell us the same things: they want a crew that treats the house like a home, that does not leave nails in the flower beds or debris in the gutter, and that explains the price in dollars before the work begins. Erik Lindgren runs every job with the same expectation: a written price, a clean worksite, and a photo of the completed clean-up before the crew drives away.

Our relationship with Union City runs deeper than a single job. The city’s flat bay-plain position means roofs here face year-round marine humidity and salt air that eats galvanized flashing and strips granules off asphalt shingles faster than Fremont’s foothill neighborhoods a few miles east. We specify materials and underlayment with that in mind, not with a generic spec sheet. And every roof we replace is covered by the 365-Day Done Right Promise. If it’s not right, we make it right. That’s stamped on the contract, not whispered in a sales pitch.

You’ll also get a live person on the phone any hour of the day or night. No voicemail tree, no next-business-day callback. Call (424) 766-4937 and a person answers. That matters when a winter storm has been driving northwest wind against your ridge caps all night and you need someone who knows Union City roofs to talk you through whether it can wait until morning.

Birchbark Roofing is part of the Cedarwell family of independent roofing companies, and every job we do in Union City is held to the Cedarwell Care Promise: Clean up like it is our own home. Ask before we move or touch anything. Respect the family’s time and quiet hours. Explain the price before the work. That is the kind of care homeowners with kids and pets actually care about.

New Roof Installation in Union City

New Roof Installation in Union City means a full tear-off to the deck, new underlayment, new flashing, new shingles, and new ventilation, all sized and specified for a home sitting in the Hayward Fault’s high-seismic-hazard corridor. Because local building officials scrutinize roof weight, we steer Union City homeowners toward lightweight composition shingle or standing seam metal rather than heavy concrete or clay tile. A full new roof installation in Union City typically lands between $16,000 and $28,000 for most 1,200-to-2,200-square-foot homes, with the final number driven by pitch, decking replacement, and whether the home sits in one of the older Decoto pockets with skip sheathing.

Every new roof installation we do in Union City includes a written line-item price before any work starts. That is not an estimate with a handshake. It is a dollar figure on paper, and the only time it changes is when the tear-off uncovers something the original quote could not see, like rotted decking or failed felt from the original 1960s build. Then you get a change order in writing, and you approve it before we lay a single square.

Protecting the Inside While We Work Above

A roof replacement shakes the whole house. We know that. On a single-story Union City rancher with kids napping or a dog that startles at every nail gun, that matters. We coordinate door schedules with you, keep the noise predictable, and use drop cloths through every walkway. If there is a pet-safe product option for the job, we choose it. If the dog needs to stay inside during tear-off, we make sure the crew knows which door to use and when.

Ventilation, Decking, and the Details That Get Skipped

Union City’s marine layer does not just shorten shingle life. It feeds moisture into attic spaces that are already under-ventilated in many of the 1960s and 1970s homes near Contempo Park and Alvarado Boulevard. We spec ridge vents and intake ventilation that actually moves air, and we replace rotted CDX plywood decking before a new roof goes over it. Skipping that step just means the new shingles telegraph every soft spot within a season. We do not skip it.

Reroofing in Union City

Reroofing in Union City means removing the existing shingle layers and replacing them with a new system, but the real work often happens underneath. The dense tracts of 40-to-65-year-old single-story and split-level homes built out between the late 1950s and early 1980s are mostly on their second or third composition shingle roof. Many still have original CDX plywood decking, original pipe-boot flashings, and original felt underlayment from the construction era. When we tear off, that is what we find. A reroof on a typical Union City split-level runs $14,000 to $24,000, with decking replacement and sheathing upgrades priced as written change orders when the tear-off reveals damage the initial walk-around could not see.

One thing Union City homeowners should understand before they compare bids: a reroof price that does not include a decking allowance is not an honest price. In our experience, roughly a third of the older tract homes we open up need at least partial decking replacement. We write that allowance into the contract up front, so the number you approve is the number that reflects what we will actually find.

What the Tear-Off Tells Us

Tear-off is diagnostic. On a 1962 split-level off Alvarado-Niles Road in the Decoto district, our crew tore off three layers of shingle and found original CDX plywood decking delaminated across roughly a third of the roof, plus corroded galvanized pipe-boot flashings at every penetration and a patched valley that had been leaking into the skip sheathing. We priced the solid sheathing replacement as a written change order before touching it, then installed CertainTeed architectural shingles over new ice and water shield in the valleys, fresh underlayment, new drip edge, and a ridge vent. The homeowner signed off on every line before we laid a single square. That is how reroofing in Union City should work.

Seismic Weight, Salt Air, and Shingle Choices

Union City building officials actively steer homeowners away from heavy concrete or clay tile because every pound of roof load matters on the Hayward Fault. Composition shingle is the workhorse here. Architectural shingles from GAF, CertainTeed, Owens Corning, and IKO all perform well in this climate, but we specify based on exposure. Salt-laden marine moisture accelerates granule loss and corrodes exposed flashing. On Union City roofs, we upgrade to stainless or powder-coated flashing at ridge caps, valleys, and pipe boots, and we use a high-grade synthetic underlayment instead of budget felt. It costs a little more per square. It keeps the roof out of trouble for years longer.

Trusted Brands We Service in Union City

We work regularly with GAF, CertainTeed, Owens Corning, and IKO, and we stock common components and accessories so a Union City reroof does not stall waiting for a part to ship from a warehouse. That means faster tear-off-to-ridge-cap timelines and fewer days of tarps on your roof. We do not push one brand over another. We recommend the shingle system that makes sense for your roof’s pitch, your home’s exposure to the bay’s salt air, and the seismic weight constraints Union City enforces. If you have a warranty question on an existing GAF or CertainTeed roof, ask us. We service all of these systems.

Common Roof Replacement Problems We See in Union City Homes

• Rotted or delaminated original CDX plywood decking: Homes built between the late 1950s and early 1980s in Union City’s former Alvarado and Decoto farmland tracts often still carry original decking. Moisture from the marine layer and years of minor leaks leave soft spots that new shingles telegraph within a season. We replace the bad sections and price it in writing before we proceed.
• Salt-air corrosion on exposed galvanized flashing: Union City’s flat bay-plain position means measurable salt-laden humidity year-round. Galvanized step flashing and pipe boots corrode faster here than in Fremont’s foothills, and the first leak points in a northwest winter storm are almost always ridge caps and step flashing. We upgrade to corrosion-resistant flashing on every reroof.
• Skip sheathing on pre-WWII Decoto cottages: The older homes near Alvarado-Niles Road often have spaced skip-sheathing roof decks instead of solid plywood. You cannot lay modern underlayment over skip sheathing and expect it to perform, and once a permit is pulled, it will not pass inspection. A full layer of solid sheathing has to go down first, which adds labor and material. We price it up front when we know it’s there, and as a written change order if we discover it after tear-off.
• Failed felt underlayment under otherwise decent shingles: A roof that looks fine from the street can be failing underneath. Original felt underlayment from the 1960s and 1970s breaks down, especially in Union City’s humid marine air, and once it goes, the shingle above has no second line of defense. A reroof here means stripping to the deck and starting the system fresh, not layering over a compromised base.

Pricing for Roof Replacement in Union City, CA

We Also Serve Cities Near Union City

In addition to our work throughout Union City, our Roof Replacement crews serve Fremont, Newark, San Lorenzo, and Castro Valley. If you are just across the city line, the same written pricing, the same 365-Day Done Right Promise, and the same Cedarwell Care Promise apply. Learn more about what a Roof Replacement in Union City looks like when it is done carefully.

FAQs About Roof Replacement in Union City