Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Installation Across Ashland
Roof installation in Ashland runs $8,500 – $22,000 for a standard tract-home tear-off and replacement, with architectural shingle jobs on the 1950s flatland houses typically landing between $11,000 and $16,000. That’s the honest range we quote before we ever step on your roof. Ashland sits in unincorporated Alameda County, which means your permit comes from the county, not a city hall, and the inspection timeline runs on county scheduling. We know exactly how that process moves and we’ll handle it from first measurement to final sign-off. Call (743) 200-8347 for a written price on your roof.
Most of the homes we roof in Ashland were built between 1945 and 1962. Small lots, tight eave-to-fence clearances, and decades of marine-layer damp shape how we stage, tear off, and install on every job. Our crews work these streets every week, from the blocks around Ashland Avenue down to the flatlands near the BART corridor. We know which homes still carry original skip sheathing and which already have a second layer of 3-tab that has to come off before new underlayment goes down. That local knowledge keeps your quote accurate and your install on schedule.
Why Mercer Roofing Is Ashland’s Preferred Roof Installation Company
Homeowners in Ashland call us because we send the technician’s name and photo before anyone walks through the gate. That matters here. Ashland’s tight streets and close-set homes mean you might not see our truck pull up, but you’ll already know who’s at the door. Every Mercer technician is background-checked, identity-verified, and badged with a photo ID under the Threshold Verified standard. We’re part of the Threshold Group family, founded in 2000, and each location is independently owned and operated but held to that same vetting bar.
Our Roof Installation team has torn off and re-roofed hundreds of Ashland tract homes, garage conversions, and low-slope additions. We know the county’s plan-check quirks and we scope every job for the unpermitted additions this neighborhood is known for. Grant Whitlock, who leads Mercer Roofing, insists on one thing above all: a written price before any work starts. No change orders mid-job. No surprise line items. Every repair includes a written guarantee, and if something isn’t right within 365 days, we make it right under our Done Right Promise.
Roof Flashing Installation in Ashland
Roof flashing installation in Ashland is the difference between a roof that sheds water and one that leaks around every pipe boot, chimney, and wall tie-in. Look at your roofline where it meets a shed-roof addition or where a garage conversion was tied into the original structure. Those transitions are where we find the bulk of our flashing failures here. Roof flashing installation on an Ashland home typically runs $850 – $2,400 depending on how many penetrations and transitions need new metal and how much decking repair the tear-off reveals.
Flashing at Low-Slope Tie-Ins
Those 1970s shed-roof additions Ashland is full of were often added without proper step flashing at the roofline junction. Water works into the seam, rides down the wall plate, and rots the sheathing from the inside out. We replace the damaged decking, install new step flashing properly interlaced with the shingle courses, and seal the low-slope transition with a self-adhered water shield before any finished roofing goes on.
Pipe Boots and Vents on Aging Tract Homes
If your Ashland home still has the original plumbing vent boots from the 1950s, they’re cracked. The rubber loses its flex after three or four decades and starts admitting water into the attic on the first hard rain. We replace every boot we touch during a re-roof, and on repair jobs we inspect the visible boots every time. It’s the part most roofers skip because they can’t see it from the ground.
TPO Roofing Installation in Ashland
TPO roofing installation in Ashland is most common on the flat and low-slope sections of homes, garage conversions, and outbuildings that were added during the 1970s and 1980s without permits. TPO is a single-ply thermoplastic membrane that heat-welds at the seams, which means no adhesive failures in the damp Ashland morning air. A TPO roofing installation on an Ashland low-slope addition or detached structure typically runs $7 – $11 per square foot, with the full scope depending on whether the existing roof has to be removed first.
When TPO Makes Sense Over a Converted Garage
If your garage got a bedroom or workshop added on a near-flat roofline, standard shingles were never the right system. A low-slope roof under 2:12 pitch needs a membrane, not shingles. We install GAF and Atlas TPO systems with fully welded seams, new edge metal, and a properly sloped drainage plane so water stops ponding against the fascia.
Re-Pitching a Back-Pitched Deck
We see more back-pitched decks in Ashland than anywhere else we work. Builders in the 70s and 80s sloped the roof toward the house instead of away from it. Standing water then works backward, saturates the sheathing, and travels into the wall cavity. We re-pitch the transition with tapered insulation or a framed correction, replace the rotted plywood, and then install the TPO membrane over a solid, dry plane.
Trusted Brands We Service in Ashland
We stock and install manufacturer-recognized shingle brands including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Ashland homeowners, that means color selections are available locally and we don’t wait on special orders from out of state. GAF architectural shingles in the Timberline line are our most-installed product on Ashland tract homes, and Tamko’s Heritage line covers most budget-conscious full re-roofs. We warranty each system according to the manufacturer’s specs and stand behind our workmanship with the 365-day Done Right Promise in writing.
Common Roof Installation Problems We See in Ashland Homes
- Unpermitted shed-roof additions built over existing shingles. Homeowners in the 1970s and 80s often nailed new framing straight over the original roof and added a second roof plane on top. We find rotted decking and ponding water beneath surfaces that look fine from the curb.
- Marine-layer moss and algae on north-facing slopes. Ashland’s morning fog keeps roofs damp for hours, and that moisture feeds moss, lichen, and algae that lift shingle edges and shorten the life of standard 3-tab systems. New installs need proper ventilation to dry out fast once the sun does burn through.
- Tight lot staging hassles. Many Ashland streets have five feet or less between houses. That means careful dumpster placement, hand-carrying tear-off debris to the truck, and protecting the neighbor’s fence and siding. We plan this out before we quote so it’s part of the fixed price, not a surprise add-on.
- Second- and third-layer roofs hiding failed flashing. A roof that’s been re-covered once or twice often hides failed boots, cracked valley metal, and rusted step flashing under the old layers. Ashland’s damp climate accelerates that failure, so we strip to the deck and inspect everything before putting down new underlayment.
Pricing for Roof Installation in Ashland, CA
Here’s the straight picture for Roof Installation in Ashland. A standard 1,200-square-foot tract home with architectural shingles runs $11,000 – $16,000 for a full tear-off, inspection, and re-roof. Budget 3-tab systems start around $8,500, though most Ashland homeowners upgrade to architectural for the longer lifespan given our damp climate. Low-slope TPO sections run $7 – $11 per square foot. Flashing-only repair jobs run $850 – $2,400. Factors that move your number: the number of roof layers to remove, whether sheathing needs replacement, how many penetrations and transitions need new flashing, and whether we’re correcting drainage on an old addition. We provide the written line-item price before work starts, so you know the full scope and total upfront. Call (743) 200-8347 for your free estimate.
We Also Serve Cities Near Ashland
Our crews work throughout the East Bay and the wider Bay Area. Beyond Ashland, we install roofs for homeowners in Los Angeles, San Diego, San Jose, and San Francisco. If you’re anywhere in the broader region and want the same written-price guarantee, give us a call and we’ll tell you straight whether we can get a crew to your street.
Serving Ashland, CA - Our Local Coverage Area
We’re a Roofing Company in Ashland 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 Installation in Ashland
No, because Ashland is unincorporated, your roof installation permit comes from the Alameda County Building Department, not a city hall. We pull the county permit for you, schedule the inspection, and make sure the re-roof meets county fire-resistance and cool-roof standards with no added municipal overlay to contend with. Call (743) 200-8347 and we’ll walk you through exactly what the county will ask for on your specific house.
Sometimes, but we won’t know until we tear off. Most of those additions were built over existing roofing with no proper drainage slope, which means the decking underneath is likely rotted and the roof has to be re-pitched before new roofing goes down. We inspect every section before quoting so the price reflects the real scope. Call (743) 200-8347 and we’ll check yours.
Ashland’s marine-layer fog keeps your north-facing slope damp well past sunrise, and moss, algae, and lichen thrive in that cool, wet environment, especially on low-pitch sections that drain slowly. A new roof with proper intake and exhaust ventilation will dry out faster and resist moss growth better than an old, poorly ventilated system. Get a written quote at (743) 200-8347.
We stage the tear-off on the street side with a protected dumpster where possible, and we hand-carry debris to the truck on lots with no side yard access. The tight eave-to-fence clearances typical of Ashland flatland tracts mean we plan every dumpster placement before we quote, so the cleanup is part of the fixed price, not a surprise after the fact. Call (743) 200-8347 for a site walkthrough.
We install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral shingle systems, with GAF architectural shingles being the most common choice on Ashland tract homes because of their wind and moisture resistance. We’ll show you full color boards during the estimate and give you a written, line-item price for the system you pick. Call (743) 200-8347 to schedule your free estimate.
If you’re reading this from a 1950s Ashland tract home with a roof that’s seen forty years of bay fog, call (743) 200-8347. We’ll send a background-checked technician with a photo ID badge and a written price before any work begins. No pressure. Just a straight answer about what your roof needs.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Ashland and the East Bay since 2000.






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