IKO Roof Replacement Nationwide

IKO Roof Replacement in San Francisco: What to Know First

IKO roof replacement in San Francisco typically runs $14,000 to $28,000 for a full tear-off and reroof on a standard single-family home, and most jobs wrap in five to eight working days. We’re an independent IKO service provider, which means we answer to you, not a manufacturer. You’ll get a written price in dollars before a single shingle moves, and that price covers everything from tear-off to the final clean-up photo.

Call (831) 228-3330

This page is for homeowners with existing IKO roofs, homeowners considering IKO for the first time, and anyone whose IKO installation has become a problem that needs a proper fix rather than another patch. If your roof is already leaking or the shingles are curling at the edges, call us at (831) 228-3330 and we’ll get you on the schedule for an estimate. We walk every slope before we quote anything.

How IKO Products Fail – and How We Fix Them

IKO makes a solid shingle for California housing stock, but every roof product has failure patterns tied to how it’s installed and what it faces for ten, fifteen, or twenty years. Here’s what we find on San Francisco homes. If your roof is doing any of these things, replacement may be the right call, and our fix is the full tear-off and clean install, never a layer-over.

• Curling and cupping on IKO Cambridge architectural shingles. Cambridge is IKO’s most common architectural line in San Francisco, and when we see edges lifting along the south-facing slopes, it’s almost always an under-ventilation problem. Attic heat builds up, the shingle mat flexes, and the adhesive strip loses its grip. When we tear off a Cambridge roof with this failure, we check the ventilation before anything else and correct it, then install with proper intake and exhaust so the replacement doesn’t repeat the same pattern.
• Granule loss on IKO Marathon shingles in fog zones. In the Sunset and Richmond districts, we see granule loss that owners mistake for organic decay. Marathon shingles are algae-resistant, but San Francisco’s persistent marine layer keeps them damp, and on older installations with one layer of underlayment, the constant damp-dry cycle loosens granules early. If you can see the asphalt mat through the granule coat in patches, that roof is done. We replace it with the right ice and water shield at the eaves and a full synthetic underlayment system, which handles the moisture this city throws at roofs far better than what’s under most existing IKO installations.
• Wind-driven rain working under IKO Nordic shakes or shingles on three-story flats. IKO’s Nordic line looks great on Victorians and Edwardians, but those steep roofs catch cross-winds coming off the Pacific that drive rain sideways. If the original install didn’t use enough fasteners per shingle or the starter row wasn’t laid right, water pools at the roof-to-wall joint and the top courses lift. We see damp ridges at the second-floor ceiling edge long before the roof leaks visibly. Our reinstall doubles up fastening at the windward edges and we flash every wall intersection by hand, not by habit.
• Blown-off tabs on IKO Dynasty or Cambridge roofs over eight years old. Once a roof passes eight to ten years near salt air, the seal strips harden, and a good winter wind will peel individual tabs back. San Francisco isn’t a hurricane zone, but the Twin Peaks and Diamond Heights wind corridors are strong enough to catch a loose tab and fold it over the course of a season. If you’re finding shingle tabs in the yard after storms, your roof has lost its adhesive integrity across wide sections. Patching one tab means the next tab is coming off next month. We price a full replacement so you stop paying for stickers.
• Failed repairs on IKO flat roof systems with modified bitumen. IKO makes low-slope products too, and on San Francisco’s many flat and parapet-roofed Edwardian buildings, the failed repairs we see are usually patched seams over old granulated cap sheet that wasn’t properly torched or adhered the first time. When the patch fails, water travels between plies and shows up far from the source. We replace IKO flat systems with full tear-off and a properly welded or cold-adhered system, using the right primer and flashing details so seams don’t open when the fog rolls in and the roof never fully dries.

Our IKO Roof Replacement Process

Every IKO replacement we do follows the same path, and you’ll know exactly what’s happening at each stage. Our crews are background-checked and uniformed, so when someone knocks on your door, you know who it is and why they’re there.

1. 1
   The walk and the written estimate. Erik Lindgren or one of our senior techs walks every slope, checks flashing at every penetration, and notes exactly what we find before quoting a number. You’ll get a written price that covers the full job, not an opening offer that grows later. A written price before a single shingle moves – that’s just how the job starts.
2. 2
   Tear-off and sheathing inspection. We remove the old roof down to the decking. In San Francisco, especially on older flats in the Sunset, we find enough rotted sheathing that we plan for it and tell you before we start what replacement sheathing might add to the final number. You’ll know the per-sheet price.
3. 3
   Deck prep and underlayment. We install new drip edge, ice and water shield at the eaves and valleys, and full synthetic underlayment. This is where San Francisco’s damp climate gets handled. IKO’s warranty is respected on all installs, and the underlayment details are part of what keeps the warranty valid.
4. 4
   IKO shingle installation. We install to manufacturer spec, including fastener count and placement. If you choose a different brand instead, we work with GAF, Owens Corning, CertainTeed, Atlas, Tamko, and Boral as well. Most IKO homes we replace get IKO on the reinstall, but we’ll talk through your options honestly.
5. 5
   Flashing, ventilation, and trim. We hand-flash every wall joint, chimney, and penetration. We also check and correct attic ventilation, which is the single biggest modifier of shingle lifespan in San Francisco. If the old roof curled early, this is where we stop the next roof from doing the same.
6. 6
   Clean-up and photo proof. Magnets sweep the property for nails, walkways get cleared, and we photograph the completed clean-up before the crew leaves. Shoe covers at the door, drop cloths through the hallway, all debris cleared and photographed.

What IKO Roof Replacement Costs in San Francisco

Here’s honest pricing for IKO replacement work in San Francisco. These ranges reflect what we’ve quoted on homes across the city, from the Sunset to Noe Valley. Your exact number comes in writing after we walk the roof.

• IKO Cambridge architectural shingle full replacement, 1,500 sq ft roof: $14,000 to $20,000, including tear-off, underlayment, flashing, and clean-up.
• IKO Dynasty or Nordic full replacement, 2,000+ sq ft roof with steep slopes: $20,000 to $28,000, depending on access, steep-charge scaffolding, and how much sheathing needs replacing.
• Partial roof replacement or single-slope IKO re-shingle: $4,500 to $9,500, when one slope has failed but the rest of the roof is sound.
• Flat roof replacement with IKO modified bitumen: $12,000 to $22,000, with parapet wall flashing and drain work included.

What moves the price: roof size, slope count, sheathing condition, access, and whether the job is on a third-story Victorian that needs full scaffolding. We don’t charge more because we can. We quote what the job costs, and you’ll see every line before we start. Call (831) 228-3330 for a free estimate in writing.

Why San Francisco Homeowners Call Birchbark Roofing San Francisco for IKO Work

We’re part of the Cedarwell family of independent roofing companies, and we’ve been holding ourselves to the Cedarwell Care Promise since 2000. That promise is the reason our techs wear shoe covers at the door, lay drop cloths through your hallway, and send you a photo of the clean-up before they pack the truck. The C.A.R.E. values are how we run every job: Clean up like it’s our own home, Ask before we move or touch anything, Respect your family’s time and quiet hours, Explain the price before the work. Your kids and pets don’t need to know there’s a roofing crew on the property. They’ll just know someone knocked, someone worked, and someone left the house the way it was.

Every IKO job carries our 365-Day Done Right Promise. If the work isn’t right, Birchbark makes it right. That’s stamped on every roof replacement we do in San Francisco.

And if IKO isn’t the right product for your situation, we’ll tell you. We work with GAF, Owens Corning, CertainTeed, Atlas, Tamko, and Boral. You get the shingle that fits your roof and your budget, and the written number before anything starts.

IKO Roof Replacement FAQs