Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
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Before
AfterFast, Reliable Roof Installation Across Hayward
A new roof on a Hayward home is not a one-size-fits-all job. The flatlands west of Mission Boulevard, the hills east of the fault line, and the fog belt in between each age and fail differently. That’s why our Roof Installation crews start every Hayward project with a close look at what’s already up there: sheathing, roof-to-wall connections, ridge boards, and the north slope that catches marine-layer fog all night. A written price comes before any work starts, and every repair is backed in writing. Call (743) 200-8347 and we’ll walk you through it.
Why Mercer Roofing Is Hayward’s Preferred Roof Installation Company
Homeowners across Hayward call us because the person who shows up is the person we told you was coming. Before a technician arrives, you get their name and photo. They show up in a clean, marked uniform with a photo ID badge at the door. That’s the Threshold Standard, and it’s not optional.
Grant Whitlock leads our team with one rule: write the price down before a single nail is driven. No open-ended estimates, no surprise line items after the tear-off. That’s why Hayward homeowners keep referring us to neighbors in Burbank, Whitman-Mocine, and up along Mission Hills. A live person answers our phone 24/7, so when a Hayward stack effect or a fog-line leak has you worried at 6 a.m., a human picks up on our end.
TPO Roofing Installation in Hayward
TPO Roofing Installation in Hayward is the smart play for low-slope sections on the flatlands tract homes and the low-pitch additions common through Burbank and Glen Eden. TPO is a heat-welded single-ply membrane; the seams are fused, not glued, which matters on a low-slope roof where water sits longer than it would on a steeper pitch. A typical TPO roof installation in Hayward runs $7,000 to $14,000 depending on square footage, decking condition, and how much old material has to come off first.
When TPO Makes Sense on a Hayward Roof
Many 1950s and 1960s Hayward tract homes have a low-slope rear section over a family room or patio cover that a shingle roof should never have gone on in the first place. We see shingles over low slope all the time out here, often leaking for years before anyone notices. TPO handles that pitch properly and reflects more afternoon sun, which helps in the inland-heat stretches when Hayward bakes between fog cycles.
What the Crew Does Before TPO Goes Down
We open seams and check the deck below. If skip sheathing from the original build is still there, we re-deck to a solid substrate before the membrane is fastened. Then we weld the seams and flash the penetrations. Every TPO job gets a written price before work starts and a 365-Day Done Right Promise; if it’s not right within a year, we make it right.
Shingle Roof in Hayward
Shingle Roof in Hayward is the classic workhorse for most of the city’s housing stock, but the product matters less than what’s underneath it. The 1950s through 1970s flatlands homes west of Mission Boulevard were built fast, on skip sheathing, and many are now on a second composition shingle roof that’s aging out. A full shingle roof replacement in Hayward generally falls between $9,000 and $18,000, with the spread driven by decking condition, tear-off count, and whether the ridge and valleys are still dry.
Asphalt Shingle Replacement, Hayward Style
A Hayward shingle roof has to handle daily thermal cycling from fog at night to inland heat by afternoon; that cycling is the main reason granules start collecting in Hayward gutters years earlier than in Livermore or San Ramon. We install shingles from manufacturers we trust and stand behind: GAF, Owens Corning, and CertainTeed are the ones Hayward homeowners choose most. Where the old roof had two layers, we tear off both; layering a third over failing decking is a shortcut we will not take.
Why Decking and Sheathing Come First
On a 1958 tract home off Mission Boulevard, our crew tore off two layers of aging composition shingle and found the original skip sheathing had shifted. We opened it up to a solid re-deck before anything new went down, and while the walls were open, we flagged the roof-to-wall connections and wrote up the fix for the homeowner’s written approval. That’s the job. The shingles are the top layer; the roof is everything below them.
Trusted Brands We Service in Hayward
We install and repair using manufacturer-recognized shingle brands, and in Hayward we carry the materials local homeowners keep choosing: GAF, Tamko, and Atlas. For flat and low-slope work, we stock commercial-grade TPO membranes and the flashing systems that go with them. Hayward is far enough from a big supply yard that running a missing bundle of shingles can kill an afternoon, so we keep what this city’s roofs need on our trucks. Dispatch and scheduling are coordinated from the brand’s San Francisco Bay Area office; the crews you’ll see on a Hayward job live and work here in the East Bay.
Common Roof Installation Problems We See in Hayward Homes
- Fog-line moss and soft decking on north slopes. Homes above the fog line in the Hayward Hills hold moisture on north-facing planes every night, and over a few years, moss and wet-rot damage to OSB decking follow. It’s often misread as an interior leak.
- Skip sheathing still in place from the original build. Flatlands tract homes from the 1950s and 1960s were sheathed with gaps between boards, and you cannot fasten a modern shingle roof to that reliably. Re-decking is often the real fix.
- Roof-to-wall connections that were never upgraded. The Hayward Fault runs right through these neighborhoods, and older framing attachments were not built for the movement that happens here. We inspect those connections on every Hayward re-roof.
- Failed waterproofing in valleys and low-slope sections. Hills homes with mid-century additions often have combined shingle and low-slope sections, and the valley where they meet is the first thing to fail. New shingles on a bad valley solves nothing.
Pricing for Roof Installation in Hayward, CA
A straight shingle tear-off and re-roof on a typical Hayward flatlands home runs $9,000 to $15,000. Hills homes with steeper pitches, multiple valleys, or low-slope sections land in the $12,000 to $18,000 range. TPO on a low-slope rear section typically adds $7,000 to $14,000 depending on the deck. What moves a quote is what we find under the old roof: shifted skip sheathing, soft decking, or framing that needs re-securing near the fault. We write it all into a line-item price before work starts, and if we open a roof and find something we could not see from the outside, you approve the change in writing before we touch it. Call (743) 200-8347 for a free estimate. The price we quote is the price you sign; no change orders the crew springs on you mid-job.
We Also Serve Cities Near Hayward
Mercer Roofing serves homeowners across the East Bay, including Dublin, Pleasanton, San Ramon, and Livermore. Each home gets the same Threshold Standard: a named, photo-badged technician at the door and a written price before any work starts. If you’re in one of those cities, call (743) 200-8347 and we’ll schedule a free estimate.
Serving Hayward, CA - Our Local Coverage Area
We’re based in the Hayward 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 Installation in Hayward
Most often, shifted skip sheathing on flatlands tract homes, soft OSB decking on fog-line north slopes, and roof-to-wall connections that were never seismically upgraded. That’s why we do not quote a Hayward re-roof as if the decking below is fine until proven otherwise. We inspect first, write allowances into the contract, and price any additional work in writing before we start it. Call (743) 200-8347 to have a Hayward roof opened up and priced straight.
Yes. The Hayward Fault cuts directly through residential neighborhoods, and even minor fault movement compromises roof-to-wall attachments that a standard inspection elsewhere would never flag. On every Hayward roof, we inspect ridge board integrity, sheathing fastening, and the connections that tie the roof plane to the walls. Those connections get re-secured and re-priced in writing before work begins. It’s not a line item you’ll see from a roofer who treats Hayward like any other city.
Usually not. What you’re seeing is marine-layer fog drip that settles on north-facing planes in the eastern Hayward Hills all night, then bakes off during the day. The moss is a roof-plane moisture problem, not water getting inside the house. The fix is a full north-slope tear-off with treated underlayment and better ventilation; we have done exactly that on 1970s ranches above the fog line where two previous interior leak investigations hadn’t found anything. Call (743) 200-8347 and we’ll tell you what you’re actually dealing with.
Because the old roof was hiding something: shifted sheathing, rot, or framing that could not be seen from the outside. Some roofers quote the visible job and then hand you a change order when the decking comes up. We write allowances into the contract up front and any surprise is priced and approved in writing before we touch it. You never get a change order sprung on you mid-job. That’s the standard Grant Whitlock set, and it’s non-negotiable.
It should show the tear-off count, the decking condition or the allowance for it, the shingle and underlayment brand and line, the flashing and valley work, and the roof-to-wall connection upgrades if you’re on the fault line. It should also have a written guarantee: ours is the 365-Day Done Right Promise, on every repair, included with every job. If a repair fails within a year, we come back free. Call (743) 200-8347 for an exact quote. Estimates are free.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Hayward and the East Bay.