Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roofing Company Across Hillsborough
Roof repairs in Hillsborough typically run $395-$1,850 depending on the system, and full re-roofs on the town’s older estates usually fall between $28,000 and $95,000. Those are real numbers for this market, where clay tile and slate dominate instead of asphalt shingles. We coordinate dispatch from our San Francisco Bay Area office, with crews who work Hillsborough’s hillside properties every week. If you’re seeing water stains on a ceiling or missing tiles after a windstorm, call (945) 303-9821 and a live person will answer.
Hillsborough isn’t a tract-home town. Nearly every roof we touch here sits on a custom estate built between 1920 and 1960, and most of them still carry their original clay tile. That changes how a roofing company has to operate. Before we pull a single tile, the Hillsborough Architectural Review Board usually needs to approve materials and colors. We handle that paperwork as part of the job, not as an afterthought. Greg Holloway, who leads Tilehurst Roofing, made that sequence standard practice for our Roofing Company team.
You’ll get a written price before any work starts. Not a verbal estimate, not a ballpark, not a number that changes when the crew shows up. A written line-item price, delivered before a nail is driven.
Why Tilehurst Roofing Is Hillsborough’s Preferred Roofing Company
Hillsborough homeowners have told us the same story enough times that we built our process around it. Another roofer no-showed, or quoted one price and then found reasons to raise it mid-job, or completed a repair that leaked again within a month. We operate differently. Tilehurst Roofing is part of the Kingswell family of roofing companies, founded in 2000, and every job we take on carries the same written guarantees no matter which crew shows up.
Our technicians are background-checked and uniformed. You’ll know exactly who is on your roof, and we show up inside the window we gave you. Calls are answered by a live person 24 hours a day, seven days a week, including evenings and weekends. No voicemail, no callback queue, no waiting until Monday when water is coming through a ceiling.
Response time to Hillsborough matters because of the topography. The hillside roads winding through the town’s tree canopy mean weather hits roofs unevenly. A fog-shaded valley on one side of a ridge can be failing while the other side looks untouched. We know what that looks like because we see it here every week, not once a season. If a repair fails inside the guarantee period, we return at no charge under our 365-Day Done Right Promise. That’s a full year of documented accountability, written into the guarantee we hand you before the crew leaves, not mailed later. This is how Roofing Company in Hillsborough should work.
Commercial Roofing in Hillsborough
Commercial Roofing in Hillsborough usually means low-slope systems on auxiliary structures rather than the pitched clay tile dominant on the town’s residences. The estates here often include detached garages, pool houses, or guest quarters with flat or low-slope roofs, and those fail in ways the main house never will. Ponding water after winter storms, failed membrane seams, and clogged internal drains are the three issues we see most. Commercial roof work in Hillsborough typically runs $8,500-$45,000 depending on square footage and whether we’re doing a full replacement or a targeted restoration.
Low-Slope Membrane Systems
A flat roof over a Hillsborough pool house gets ignored until water stains appear on the ceiling below. We inspect the membrane for seam failure and trapped moisture, then give you a written price for either a repair or a full replacement. TPO, PVC, and modified bitumen are the standard options, and our crews stock the materials locally so we’re not waiting on a shipment when the work starts.
Drainage and Ponding Correction
Hillsborough’s winter rainfall is heavier than San Francisco’s, and flat roofs catch every inch of it. If the existing drains or scuppers are undersized, water sits and accelerates membrane failure. We often add tapered insulation to correct slope or install additional drains so water moves off the roof instead of sitting on it. This is the difference between a patch that lasts two years and a correction that lasts twenty.
Metal Roof Installation in Hillsborough
Metal Roof Installation in Hillsborough is a conversation that starts with the Architectural Review Board, not the roofer. The town’s design review process was built around period-appropriate materials, and while metal roofs appear on a limited number of Hillsborough estates, they require material and color approval before permits are issued. Metal roofing on a Hillsborough home typically runs $42,000-$120,000 depending on the profile, gauge, and whether we’re replacing an existing metal system or converting from another material.
Standing Seam for Low-Pitch Sections
Some Hillsborough estates include low-pitch sections where clay tile was never practical. Standing seam metal handles those slopes without the water intrusion risk of tile, and it sheds the coastal fog that sits on the town’s hillsides. We install 24-gauge steel and aluminum systems with concealed fasteners, and every panel is cut to the roof on site rather than ordered from a generic template.
Material Matching Under Review
When the Architectural Review Board signs off on a metal roof, they want to see exactly what’s going up. We submit physical samples and color swatches, not just spec sheets. Lead times on specialty colors and profiles can run six to ten weeks, so we sequence the permit submission early to avoid leaving a stripped roof exposed to fog and rain while panels are fabricated. That sequencing is what separates a clean job from an open roof in January.
Trusted Brands We Service in Hillsborough
We install and repair systems from seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Hillsborough specifically, Boral and GAF tile profiles come up most often because they offer the mission-style and Spanish profiles the Architectural Review Board wants to see on period homes. CertainTeed and Owens Corning carry the underlayment and ice-and-water shield specifications these older estates need. We stock common tile profiles and underlayment locally for Hillsborough customers, so a crack repair on a ridge cap doesn’t wait two weeks for an order from Texas. If your roof uses a discontinued tile profile, we have sources for period-correct salvage tile and can usually match it within the same week.
Common Roofing Company Problems We See in Hillsborough Homes
- Underside tile failure from trapped moisture. The tree canopy of mature oaks, redwoods, and eucalyptus shades roof valleys and pan tiles on many Hillsborough estates year-round. Water gets under the tile, crumbles the mortar bed, and cracks tiles from underneath in a way that looks fine from the ground until a section collapses. This failure mode is specific to wooded, foggy hillside towns, and roofers from sunnier flatland communities routinely miss it on first inspection.
- Mortar bed erosion at ridge caps and hips. Coastal fog and marine layer moisture sit on porous clay tiles far more than dry-summer cities below the hills. The mortar holding ridge caps and hip tiles degrades prematurely, and once it crumbles, wind gets under the caps and starts lifting them. We see this on 60 to 100-year-old Hillsborough roofs constantly, usually before the field tiles themselves have failed.
- Skip-sheathing and undersized framing hidden under original tile. Many 1920s through 1950s Hillsborough homes were built with skip-sheathing, which means gaps between the boards under the tile. If a roofer lays new underlayment over that substrate without inspecting the decking and framing, the new system fails early. Once tile is off, we check every section and flag any framing that should trigger a code upgrade before anything goes back on.
- Debris-packed valleys on estate footprints. The large roof footprints of Hillsborough estates mean valleys run long and collect tremendous amounts of leaf and needle debris from the overhanging trees. These valleys stay perpetually shaded and wet, trapping moisture against flashing and accelerating corrosion. A blocked valley on a 6,000-square-foot roof can move serious water into the house before anyone sees a stain on the ceiling.
Pricing for Roofing Company in Hillsborough, CA
Here are the real numbers for this market. Clay tile repairs in Hillsborough run $395-$1,850 depending on the number of tiles and the condition of the mortar bed. Full clay tile re-roofs on the town’s larger estates run $42,000-$95,000, with the higher end reflecting the cost of period-correct tile, Architectural Review Board submittals, and custom flashing work. Metal roof installations run $42,000-$120,000. Asphalt shingle work, where it’s permitted, runs $18,000-$38,000 for a full replacement. Hidden damage gets priced and approved in writing before we touch it, never sprung on you mid-job. Call (945) 303-9821 for a free written estimate. We’ll walk the roof with you, explain what we find, and hand you a line-item price before any work starts.
We Also Serve Cities Near Hillsborough
We work throughout the Bay Area and beyond. If you own property in Los Angeles, San Diego, San Jose, or San Francisco, our crews coordinate from the same Bay Area office and extend the same written pricing and 365-Day Done Right Promise. The permit process differs by city, but the guarantees don’t. Call (945) 303-9821 and we’ll route the right crew to your job.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough 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 Roofing Company in Hillsborough
Yes, in most cases. Hillsborough’s Architectural Review Board enforces material and color matching requirements before roofing permits are issued, and that applies to nearly all re-roofs on the town’s period estates. We prepare the submittal package, source period-correct tile profiles, and secure design approval before anyone climbs a ladder. Skipping this step leaves your roof open to fog and winter rain while you scramble for approval mid-job. Call (945) 303-9821 and we’ll tell you exactly what your specific roof requires.
The three things we find most often are crumbled mortar beds under the tile, rotted decking where valleys have been holding water, and skip-sheathing that was never meant to support a modern underlayment system. On a 1930s Spanish Colonial along Crescent Drive, we pulled cracked pan tiles at a fog-shaded valley and found the original mortar bed had crumbled to sand, letting water sit on the underlayment for years. We dried and re-decked the section, laid new ice and water shield through the valley, rebuilt the mortar bed, and matched replacement tiles to the original profile the Architectural Review Board had already approved, so the correction passed inspection without a second submittal. That’s the sequence on every Hillsborough job: open it up, inspect, document, price in writing, then correct.
Because the town’s tree canopy and coastal fog keep the undersides of tiles damp for months at a time. Moss and lichen colonize the porous clay surface, but the real damage happens underneath, where trapped moisture crumbles mortar beds and cracks tiles from the underside. Pressure-washing the surface is the worst thing you can do. It drives water deeper into the mortar and accelerates the failure already underway. If you’re seeing crumbling mortar at the ridge caps or hips, call (945) 303-9821 for a proper inspection before the problem spreads into the decking.
We write allowances into the contract, not surprises. Before we start, we inspect the roof and the attic to flag areas where decking, framing, or underlayment is likely compromised. Those conditions become written allowances with specific dollar figures, so you know exactly what a worst-case repair costs before any work starts. If we open a section and find hidden damage outside the allowance, we stop and get your written approval before correcting it. No change orders without a signature. That’s the Kingswell Way: say the price before the work, put the guarantee in writing, come back if it fails.
Yes, but the sequence matters. We submit material and color samples to the Architectural Review Board before permits are issued, and we schedule fabrication only after approval is in hand. Some specialty metal panels have six to ten week lead times, so the submittal has to happen early. If the board approves standing seam in a specific color, we install exactly what was approved, with photos documenting the work for the final inspection. Call (945) 303-9821 for a free estimate and we’ll walk you through what your specific property can get approved.
If you’re researching what a Hillsborough re-roof actually costs and what the Architectural Review Board will require, start with a phone call. We’ll inspect what you have, explain what the town needs, and give you a written price before anything else happens. Call (945) 303-9821 to schedule your free estimate. A live person answers, day or night.
Written by Greg Holloway, owner at Tilehurst Roofing, serving Hillsborough through the Kingswell family of roofing companies since 2000.