What Shingle Roofing Work Involves
Most of the work happens in layers you never see from the driveway. We strip the old material down to the decking, then check the sheathing and plywood for rot.
From there we rebuild in order: ice-and-water shield along the eaves and valleys, synthetic underlayment across the field, then the shingles. Roofing felt and tar paper are the older versions of that layer, and a modern synthetic underlayment handles heat better.
- Three-tab shingles are the flat, uniform 3-tab profile with a single layer; they cost the least and carry the lowest wind rating.
- Architectural shingles are laminated and thicker, giving a dimensional wood-shake look with a typical 30-year manufacturer warranty.
- Designer shingles imitate slate, cedar shake, clay tile, or concrete tile, which helps where a real tile roof is too heavy for the rafters.
- Granulated fiberglass mats resist algae streaking, and that shows up fastest on shaded north slopes and under tree cover.
- Brands we install include GAF Timberline HDZ, Owens Corning Duration, and CertainTeed Landmark Pro.
Call 9257239025 for a free roof estimate before you decide anything.
Signs the Shingles Are Failing
A shingle roof rarely fails all at once. It erodes — granule loss first, then curling edges, then water that wicks under the courses and into the attic.
- Granules collecting in the gutters and at the downspout base mean the mat is exposed and the shingle is at end-of-life wear.
- Curled, blistered, or cracked shingles let water seep past the head lap and start a slow leak.
- Sag along the ridge or a soft spot in the field usually points to decay in the decking or a wet rafter underneath.
- Daylight or dark staining on the attic sheathing means water is already wicking through and rot has begun.
- Ice dams forming at the eaves push meltwater backward under the courses, often where ventilation and insulation are weak.
- Mold or peeling paint on the soffit and fascia usually traces back to a leak on the roofline, not a paint problem.
Our Shingle Roofing Process, Step by Step
Every job starts with a roof inspection and a written estimate broken into line items, so you see what the tear-off, the material, and the labor cost. Then we schedule the crew and the dumpster.
- We inspect the decking, flashings, and attic ventilation, and photograph what we find before anything comes off.
- Scaffold and ladders get staged, everyone works in a safety harness, and the tear-off runs from ridge to eave.
- We pull damaged shingles and underlayment, then replace any rotten substrate, plywood, or OSB sheathing.
- Self-adhered ice-and-water shield goes at the eaves, valleys, and low-pitch sections, sealed with adhesive rather than a bead of caulk.
- Synthetic underlayment rolls across the field, and we chalk lines so the starter course and field course stay straight.
- Shingles go down in staggered courses, fastened with ring-shank nails set at the nailing line and never overdriven.
- Drip edge along the rake and verge, ridge cap, ridge vent, and step flashing go on last, followed by a magnetic nail sweep.
What We Check While We're Up There
- Step flashing and counter-flashing where the roof meets a sidewall or chimney, the most common leak path on any shingle roof.
- Chimney flashing and apron flashing, resealed with mastic and roof cement once the old sealant has cracked.
- Pipe flashing and boot flashing at plumbing vents, including the vent boot collar that splits after years of sun exposure.
- Skylight curbs and dormer sidewalls, where a sealant bead fails long before the shingle does.
- The valley where two roof planes meet, plus any scupper or coping on a flat section or parapet wall.
- Ridge vent, soffit vent, and attic fan, because a rooftop that cannot breathe cooks itself from the underside.
- Gutters, downspouts, fascia, and soffit, along with the attic insulation and vapor barrier underneath.
- Below the deck, we look at trusses, rafters, and joists for any ridge beam, purlin, batten, or counterbatten that has settled.
- A hip or gable roof changes where a leak shows up, since water can travel a full course before it drips inside.
- Deep overhangs, a canopy over a side door, or a patio awning all trap shade and moisture against the roof deck.
What Shingle Roofing Costs Here
Pricing is quoted by the roofing square, which is 100 square feet of finished roof. Most asphalt shingle replacements on a typical two-story tract home land between $500 and $800 per square, and a repair usually costs a fraction of that.
- A single-square repair with new underlayment and matched shingles is the cheapest way to stop an active leak.
- Full tear-off costs more than a recover or overlay, but it lets us fix bad decking and reset the flashings properly.
- Building code in Contra Costa County may require new underlayment and ice-and-water shield on any re-roof, which adds material cost.
- Steep pitch, a mansard or gambrel roofline, and two-story access slow the crew down and raise labor.
- Dormers, skylights, chimneys, and parapet walls add detail work that a plain gable roof never needs.
- Replacement usually takes one to three days on a standard home, and a repair is often same-day.
Warranty, Insurance Claims, and Paperwork
Shingle warranties run through the manufacturer, and labor coverage comes from us as the licensed, insured roofer on the job. We register the warranty in your name and leave the paperwork with you.
If a winter storm or hail caused the damage, we document it the way an adjuster reads it — storm date, photos, moisture readings, and a line-item scope. We can walk you through insurance claim assistance from there.
Other Roof Systems We Work On
Shingle is the right call for most homes here, but not every one. If a section is low-slope, a membrane makes more sense, and we'll tell you that up front.
- Metal panel, standing-seam panel, and corrugated panel for long service life and a clean roofline that sheds debris.
- TPO, EPDM, and PVC membrane for flat and low-slope areas where ponding water sits after a storm.
- Built-up roof and modified bitumen, still common on older flat roofs and garages where tar and bitumen layers were standard.
- Wood shake, cedar shake, slate, and clay or concrete tile where the frame was built to carry the weight.
- Roof coating, waterproofing, and weatherproofing for a roof with life left but no budget for a full replacement.
- Snow guards are rarely needed in the Bay Area, though we do fit them on steep slate or standing-seam sections above a walkway.
Why San Ramon Roof Repair Is the Right Shingle Roofer Here
As a local roofing contractor, we stay in Contra Costa County, so we know how hot, dry summers bake the granulated surface off south-facing slopes and how foggy mornings push coastal moisture into every seam.
We also know the housing stock: Spanish-style stucco homes from the 1970s with shallow roof pitch, two-story tract homes from the 2000s, and custom estate homes on large lots where a designer shingle fits better than tile.
We work out of Windemere, Canyon Lakes, Norris Canyon, Bollinger Canyon, and Country Club Estates, and most of our calls come from a neighbor who watched us finish a roof down the street.
Tools and Jobsite Setup
- Scaffold, ladders, and roof anchors get set before the tear-off, and crews run in a safety harness above one story.
- Nail guns and an air compressor speed the field, while hand-sealing and a fastener check finish the details.
- Pry bars and a roofing shovel strip the old courses, and a roofing square keeps the layout true.
- A dumpster sits in the driveway for debris, and we magnet-sweep the lawn and beds before we leave.
Signs You Need Shingle Roofing
Shingles Curling at the Edges
Curling edges mean the shingle has dried out past the point of sealing, so wind and rain get under the course. After years of hot, dry summers stressing roof materials here, this is the first thing we check on a south-facing slope.
Granules in the Gutters
Finding grit at the bottom of a downspout means the granulated surface is gone and the mat is exposed to UV. Once granule loss gets ahead of the shingle, the fiberglass underneath starts to crack.
Stains on the Attic Sheathing
Rusty streaks or dark rings on the underside of the roof deck mean water has been wicking through for a while. Foggy mornings push coastal moisture into every seam, and that shows up in the attic long before it shows up on the ceiling.
A Sagging Ridge Line
When the ridge dips or the roofline looks wavy from the street, the sheathing or a rafter below has likely taken on water. We open a section and check the substrate before quoting anything.
Daylight Through the Decking
If you can see light through the boards from inside the attic, a shingle or two is missing or the underlayment has torn. Heavy winter rainstorms turn that small gap into a ceiling stain within days.
Ice Dams Along the Eaves
Ice damming is rare here, but it happens on cold nights after a wet storm, and meltwater backs up under the courses. It usually points to weak attic insulation and blocked ventilation rather than the shingle itself.
What's Included
- ✓ Free roof inspection with a photo report of every problem area we find, sent to you the same day.
- ✓ A line-item roof estimate showing material, labor, and dump fees before you commit to anything.
- ✓ Permit pull and building code paperwork handled by us, not by you.
- ✓ Manufacturer warranty registration filed in your name at completion.
- ✓ Old shingle tear-off, dumpster placement, and full debris haul-off included in the quoted price.
- ✓ Magnetic nail sweep of the lawn, driveway, and flower beds after the crew packs up.
- ✓ Written workmanship warranty on our labor, with the manufacturer covering the shingle itself.
Related Services
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