Darwin Roofing Services
Darwin Roofing & Maintenance provides residential and commercial roofing services throughout Darwin and Fort Dick, Igo, Lodi, Mount Hamilton, Penn Valley. Free estimates on every service listed here.
Roof Replacement
Full roof replacement starts with a complete tear-off down to the deck. We inspect every board for rot or soft spots. In Darwin, we find decking damage on about 30% of tear-offs. Damaged sections get replaced with CDX plywood before anything else goes on. Then we build up: ice and water shield in valleys and at eaves, synthetic underlayment across the full deck, new drip edge on every edge, starter strip, field shingles, hip and ridge caps, and ridge vent. Dumpster, permits, and cleanup included.
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Roof Repair
Improper step flashing is the leading cause of roof leaks at wall-to-roof transitions. Step flashing needs to be woven between shingle courses with each piece extending 4" above the shingle exposure. We see Darwin homes where the last roofer used continuous L-flashing or just caulked the gap. That always fails. We tear it out and install proper step flashing with a kick-out diverter at the bottom per IRC R905.2.8.3.
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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 Darwin 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
New construction means we get to do everything right from scratch. No compromises, no working around someone else's mistakes. Ice and water shield where it belongs, properly lapped underlayment, correct nailing patterns, and ventilation sized to the space. That's a roof that lasts.
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Metal Roofing
Color options in metal roofing are virtually unlimited. Matte black, charcoal, forest green, copper penny, barn red, slate blue. We order custom colors from Sheffield Metals and McElroy Metal with 40-year fade warranties. Your house, your style.
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Shingle Roofing
Asphalt shingles cover more homes in America than every other roofing material combined. There's a reason. They're affordable, they look good, they last 25-50 years depending on the grade, and they come in dozens of colors and profiles. Our Darwin crews have installed thousands of shingle roofs and we know the product better than most roofers in the state.
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Flat Roofing
The number one cause of flat roof failure is ponding water. Standing water that doesn't drain within 48 hours after rain. We solve ponding by installing tapered insulation systems that create positive slope to drains, scuppers, or roof edges. Minimum 1/4" per foot of slope eliminates standing water.
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Commercial Roofing
Multi-family properties in Darwin need roofing contractors who understand occupied buildings. We schedule around tenants, contain debris, and minimize noise during reasonable hours. Emergency leak repairs get priority. Water in someone's apartment is an emergency.
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Gutter Installation
Half-round copper gutters with round downspouts are the premium install for historic and high-end homes in Darwin. We solder every joint on-site with 50/50 tin-lead solder. Copper weathers to a green patina in California's climate over 5-7 years. For modern aluminum installs, we use Spectra Metals .027 gauge seamless stock in 25+ color options with Raytec hidden hangers rated to 25 lbs per linear foot of combined debris and ice load.
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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 Darwin. 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
VELUX FS (fixed) and VS (vented) skylights installed with EDL flashing kits for shingle roofs. The multi-step flashing integrates with the surrounding shingle courses per IRC R903.2. We frame the curb with doubled 2x8 or 2x10 lumber (depending on rafter depth), install ice and water shield membrane around the entire curb perimeter, then set the skylight with factory sealant before weaving step flashing into the field. Top headwall flashing tucks under the upslope shingle course. Bottom sill pan diverts water onto the downslope shingles. Zero exposed sealant joints. Mechanical flashing only.
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