Bonsall Roofing Services
Bonsall Roofing & Maintenance provides residential and commercial roofing services throughout Bonsall and Philo, Saint Helena, Spreckels, Vina, Anza. Free estimates on every service listed here.
Roof Replacement
Owens Corning Duration with SureNail technology or CertainTeed Landmark with NailTrak for reliable fastening in high-wind zones. Both meet ASTM D3462 and carry Class A fire ratings per UL 790. In California, we recommend the high-wind versions rated to ASTM D7158 Class H, which is 130 mph wind warranty. Full system install qualifies for Owens Corning Preferred Protection or CertainTeed SureStart Plus warranty.
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Roof Repair
Our roof repair process: inspect the issue, identify the root cause, quote the fix, do the work, warranty the repair. Simple. If the root cause is widespread (poor ventilation causes ice dams, for example), we'll recommend addressing that too. But the choice is always yours.
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Storm Damage Repair
Wind speeds above 60 mph cause shingle tab lift and adhesive seal failure per ASTM D7158 testing protocols. Our Bonsall inspectors check the entire windward exposure. Not just the obvious damage. Poor ventilation causes ice dams which cause water intrusion under the shingle field during freeze-thaw cycles. We document all contributing factors so your insurance claim covers root-cause repairs, not just surface patches.
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New Roof Installation
Building a custom home in Bonsall? We work directly with you and your architect on material selection, color coordination, and budget planning. From designer shingles to standing seam metal, we install it all and back it with manufacturer plus workmanship warranties.
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Metal Roofing
Metal roofing works on pitches as low as 3:12 for standing seam and as low as 1:12 with specific underlayment and sealant requirements. Steep pitches look incredible in metal. We help you choose the right panel profile, material, and color for your Bonsall home.
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Shingle Roofing
GAF Timberline HDZ. The best-selling shingle in North America. With StrikeZone nailing area for consistent fastener placement. Class A fire rating per UL 790, Class 4 impact resistance per UL 2218 (when installed in the GAF Roof System), and Class H wind rating per ASTM D7158 (130 mph). We install Timberline in the full GAF system to qualify for Golden Pledge warranty: 25-year non-prorated workmanship plus 50-year materials with WindProven limited wind warranty (no max speed). That warranty is why we recommend GAF for most Bonsall homes.
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Flat Roofing
EPDM (rubber roofing) has a 50+ year track record as a flat roofing membrane. We install fully adhered EPDM with taped or glued seams over polyiso insulation. It's a great option for Bonsall building owners who want proven performance at a lower cost than TPO or PVC.
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Commercial Roofing
Your commercial roof has HVAC units, exhaust fans, plumbing vents, and satellite dishes punching through it. Every penetration is a potential leak point. We install prefabricated curbs, custom-welded flashings, and pitch pans that handle foot traffic and thermal cycling without failing.
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Gutter Installation
Clogged gutters cause fascia rot, soffit damage, and foundation erosion from concentrated water runoff. That's not a marketing scare tactic. We see the damage on every other gutter replacement in Bonsall. Properly sized gutters with adequate downspout capacity move water away from the house. We calculate capacity using rainfall intensity data for Bonsall: roof area x pitch factor x rainfall rate in inches per hour. Standard 5" K-style handles 5,520 square feet of effective roof area.
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Roof Inspection
Our inspection covers the roof and the attic. From the attic, we check for daylight through the roof deck, moisture stains on rafters, mold on sheathing, and ventilation function. Problems in the attic often indicate roof issues that aren't visible from the surface.
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Emergency Roof Repair
Storm, wind, hail, or fallen tree. We've handled every kind of roofing emergency in Bonsall. First priority is always preventing further water damage to your interior. Second priority is documentation for insurance. Third is the permanent fix.
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Skylight Installation
Skylight replacement on existing curbs: VELUX FCM curb-mount units install directly on the existing curb frame. No structural modification, no interior disruption. The FCM sits on the curb with a built-in sill pan and integrates with a new QCM flashing kit. Low-E4 laminated glass with argon fill provides R-value improvements over older skylights. Solar-powered blinds and venting available on VSS models. The 10-year No Leak Installation Warranty requires VELUX-certified installation with the complete flashing system. We're certified in Bonsall.
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