Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Replacement Across Hillsborough
A full roof replacement in Hillsborough typically runs $28,000 to $65,000 for a standard estate home, with period-correct clay tile systems landing between $55,000 and $90,000 depending on square footage and how much mortar and decking work the job uncovers. Most Hillsborough re-roofs take three to six weeks from the first nail to final inspection, and the Architectural Review Board approval adds two to six weeks before we can even pull the building permit. If you’re reading this because your 1920s Spanish Colonial Revival is shedding tile fragments into the gutters, it may be time for Roof Repair - Hillsborough rather than full replacement; call (945) 303-9821 and we’ll walk the roof with you, put a written price in your hands, and file the review packet ourselves.
We know Hillsborough’s houses because we work on them every week. The winding roads off Floribunda, the oak canopy over Hillsborough Park, the estate lots along Crystal Springs Road – these are not abstractions to us. They’re the reason we stock spare period tile profiles and schedule crews around the town’s review calendar instead of pretending it doesn’t exist.
Why Tilehurst Roofing Is Hillsborough’s Preferred Roof Replacement Company
Hillsborough homeowners call us because we show up when we say we will and the written price we hand you before the job is the price we honor at the end. That may sound basic, but in this town, where a botched re-roof can sit under a blue tarp for months waiting on a review committee, predictability matters. Greg Holloway runs our crews with one rule: no start date until the review packet is approved and the materials are on site. That’s it. No half-finished roofs, no exposed decking waiting on a submittal.
We’re a local member of the Kingswell family of roofing companies, founded in 2000. Every job carries the 365-Day Done Right Promise, which means if something isn’t done right, we make it right for a full year after the job, no argument. Every repair and replacement gets a written guarantee before the crew leaves, not mailed later. And when you call (945) 303-9821, a live person answers, 24 hours a day, seven days a week – not a voicemail queue.
Hillsborough customers have told us the same story again and again: a previous roofer quoted one number, changed it at the door, then pulled a crew off the job for two weeks to chase another contract. We don’t operate that way. The Kingswell Way is plain: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails.
Flat Roof Replacement in Hillsborough
Flat Roof Replacement in Hillsborough is a smaller slice of the workload than in San Francisco or Oakland, but when it shows up, it’s usually on a mid-century wing, a guest house, or an attached garage on an estate that was expanded in the 1950s and 60s. A flat roof replacement here typically runs $12,000 to $28,000 depending on the roof’s square footage, how many layers need to come off, and whether the decking underneath has rotted from ponding water. Hillsborough’s fog and winter rain mean a flat roof that isn’t properly sloped or flashed will fail fast.
Decking and Drainage
Most flat roofs we replace in Hillsborough fail from two things: poor drainage and neglected seams. The marine layer keeps the membrane damp for months, and if the decking beneath has softened, the whole system needs to come off, not just the top layer. We inspect the decking before we quote so the written price already accounts for what we’ll find.
Membrane Options
We install modified bitumen, TPO, and PVC systems, and the right choice depends on how much foot traffic the roof gets and whether it’s visible from the street. On a Hillsborough estate where the flat roof is visible from an upstairs window, we often recommend a membrane color that sits quietly under the clay tile main roof rather than a bright white sheet that fights the architecture.
Roof Installation in Hillsborough
Roof Installation in Hillsborough rarely means a new build; the town’s housing stock is almost entirely custom estates from 1920 to 1960, so “installation” here usually means a full tear-off and re-roof on an existing home, or a new roof on an addition. A complete asphalt shingle installation on a Hillsborough estate runs $28,000 to $48,000, while a period-appropriate clay tile installation starts around $55,000 and climbs from there. The review board’s material and color requirements add a layer of planning that doesn’t exist in neighboring San Mateo or Burlingame, and we build that into the schedule from day one.
New Construction and Additions
When a Hillsborough homeowner adds a wing or builds a pool house, the new roof has to match the main house closely enough to satisfy the Architectural Review Board. We’ve handled enough of these to know what the town will approve: period-correct tile profiles, matching ridge caps, and flashing details that don’t read as afterthoughts. We file the review packet with the submittal, so the crew doesn’t sit idle.
Re-Roofing Existing Estates
Most of our Roof Replacement work in Hillsborough is re-roofing an existing estate that’s been shedding tile or leaking at the valleys. These are not square-count shingle jobs. The original clay systems are 60 to 100 years old, the mortar at hips and ridges has crumbled, and the underlayment has given up. We pull and palletize salvageable tile, replace failed decking, lay new underlayment, and re-set the original tile with fresh mortar and ridge caps.
Trusted Brands We Service in Hillsborough
We install and service roofing systems from GAF, CertainTeed, and Owens Corning, among seven manufacturers we stock and order from regularly. That gives Hillsborough homeowners genuine choice, not a single house brand pushed because it happens to be on the truck. If your estate’s architecture calls for a specific tile profile or color that the review board has already approved, we’ll source it. Our dispatch and scheduling are coordinated from the brand’s San Francisco Bay Area office, and crews serve Hillsborough locally, which means parts and materials don’t take a week to arrive when the job is already under way.
Common Roof Replacement Problems We See in Hillsborough Homes
- Design review bottlenecks. The Hillsborough Architectural Review Board requires material and color-matching approval before a roofing permit is issued. A roofer who doesn’t file the submittal early leaves the homeowner waiting, and sometimes leaves an open roof exposed to San Mateo County winter rain.
- Aged clay and slate systems treated like asphalt jobs. A standard tear-off-and-replace square count doesn’t work on a 1928 Spanish Colonial Revival. These estate roofs need specialized mortar work at hips and ridges, period-correct tile matching, and careful salvaging of original material, not a dumpster and a shingle gun.
- Moss, lichen, and debris-packed valleys. The oak, redwood, and eucalyptus canopy over Hillsborough’s roads keeps roof valleys perpetually shaded and full of leaf litter. Moss colonizes porous clay tile, mortar beds crumble from trapped moisture, and tiles crack from the underside – a failure mode a roofer from a sunnier city would miss on first inspection.
- Flashing failures at chimneys and dormers. Hillsborough’s large estate roof footprints mean a flashing leak at a chimney can run for months before anyone notices. By the time water shows up on a ceiling, the decking underneath has often rotted across a much wider area than the visible stain suggests.
Pricing for Roof Replacement in Hillsborough, CA
A full roof replacement in Hillsborough for an average estate runs $28,000 to $65,000 for asphalt or composite systems, and $55,000 to $90,000 for period-correct clay tile. Flat roof work runs $12,000 to $28,000. What moves the number: square footage, how many layers need to come off, whether the decking needs replacing, and whether the review board requires a specific tile profile or color that has to be specially sourced. We provide a written line-item quote before any work starts, and that number doesn’t change at the door. Call (945) 303-9821 to schedule a free estimate; we’ll walk the roof with you and explain what the review board will want to see.
We Also Serve Cities Near Hillsborough
Our crews work throughout the Peninsula and beyond. In addition to Roof Replacement in Hillsborough, we serve Los Angeles, San Diego, San Jose, and San Francisco. If you own property in more than one city, we can schedule multiple roofs through the same crew and the same written-price process. Call (945) 303-9821 and tell us the address; we’ll tell you what the review and permitting path looks like for that specific property.
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 Roof Replacement in Hillsborough
We file it. Tilehurst handles the complete submittal, including material samples, color documentation, and drawings showing the proposed roof profile. We’ve done enough Hillsborough ARB packets to know what clears review on the town’s Spanish Colonial, Mediterranean, and Tudor estates, and we file early so the approval doesn’t stall the job. Call (945) 303-9821 and we’ll walk you through what your property will need.
Yes, we match original clay tile. On a full re-roof, we pull and palletize salvageable period tile, replace the failed decking and underlayment, then re-lay the original tile with new ridge caps, fresh mortar, and new flashing at hips and valleys. When tile is too far gone to salvage, we source period-correct profiles from manufacturers including GAF and CertainTeed, and submit samples to the review board for approval. The goal is a roof that looks like it belongs on the house, not a modern replacement that fights the architecture.
Two to six weeks, depending on the submittal and the board’s schedule. The Architectural Review Board approval is a separate gate from the building permit, and it comes first. We file the submittal as soon as you sign the contract, so the review clock starts running while we order materials and schedule the crew. That sequencing is how we avoid leaving a roof torn open under a tarp waiting on a committee.
Because Hillsborough sits on the hillside side of 280, where coastal fog and marine-layer moisture push across roof surfaces constantly, and the mature oak, redwood, and eucalyptus canopy keeps large sections of roof permanently shaded. Moss and lichen colonize porous clay tile and degrade mortar at ridges and hips far faster than on flat, sunny lots down the hill. The fix is a maintenance schedule plus a re-roof that addresses drainage under the tile, not just visible surface issues.
A wind rating on architectural shingles comes from the manufacturer’s testing under ASTM D3161 or UL 2390, and it’s tied to the shingle, the underlayment, and the nailing pattern working together. On a Hillsborough clay tile roof, wind performance is governed by the tile’s fastening system – usually mechanical fasteners at the hips, ridges, and eaves – plus the condition of the mortar beds. We install to manufacturer specifications and Hillsborough’s high-wind exposure, and the written guarantee covers the system, not just the materials.
If you need a roof replacement in Hillsborough, call (945) 303-9821. We’ll answer in person, schedule the walk-through, and put a written price in your hands before any work starts. Free estimates, written guarantees, and a crew that shows up when we say we will.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Hillsborough and the surrounding Peninsula. Greg has led crews across San Mateo County since joining the Kingswell family of roofing companies, and personally walks every Hillsborough job before a quote is written.