Before & After Gallery - Mercer Roofing Co Thousand Oaks

Roofing Before & After in Thousand Oaks, CA

Photographs tell the truth faster than any warranty paragraph ever will. When you’re considering a roof repair or full installation in Thousand Oaks, you want to see actual work on actual homes in this valley, not stock photos from another state. The projects below show what we walk into, what we do with it, and what it looks like when the crew badges out at the door. No filters, no staging, just roofing work done by people whose names and photos you get before they ever ring the bell.

Call (805) 309-3314

Recent Transformations

Widespread Tile Repair in Newbury Park After Years of Deferred Maintenance

BeforeAfter

The underlayment beneath the tile had been quietly failing while the tiles themselves kept up appearances, the way tile roofs do. We pulled the fractured and slipped tiles, inspected the felt underneath, and found the real problem: exposed fasteners and dry-rotted battens in two sections. New underlayment, new battens, reset tiles with the originals cleaned and reused where possible, and a roofline that drains the way it was designed to. The homeowner now has a written guarantee covering the whole repair, and a roof that will hold through the next Santa Ana season.

Flashing Failure Repair on a 1960s Ranch in Thousand Oaks

BeforeAfter

Water was finding its way in around the chimney, but not through the shingles themselves. The original galvanized flashing from the 1960s had corroded at the bends, and the laps had opened up just enough to let wind-driven rain in during winter storms. We removed the old metal, bent new flashing to match the roofline, and sealed every lap with the underlayment tied in correctly. The leak stopped. The repair is covered by our written repair guarantee, and if it fails within 365 days, a second visit is already included at no charge.

Full Roof Installation in Thousand Oaks with Owens Corning Duration Shingles

BeforeAfter

The old roof was a three-tab layer from the early 1990s, with granule loss so advanced you could see the fiberglass mat showing through from the driveway. The owner wanted something that would actually hold up to the Thousand Oaks summer heat without baking into brittleness after a decade. We tore off to the decking, repaired two sheets of plywood that had softened near the eaves, and installed a full Owens Corning Duration system: ice and water shield at the eaves and valleys, synthetic underlayment across the entire deck, and new drip edge. The price was written and approved before a single shingle came off the truck. That’s the only way we start a job here.

Decking Replacement and Underlayment Reset in Westlake Village

What started as a quote for shingle replacement turned into a decking job once we got the old layer off, which happens more often than people expect, especially on homes where the previous roof was installed over failing wood. Three full sheets near the north valley were spongy underfoot and no longer holding fasteners. We cut out the rot, replaced the affected plywood, and laid new synthetic underlayment rated for the pitch. The owner saw photos of every sheet before we covered it back up. Nothing hidden, nothing unexplained.

Valley Leak Repair on a Two-Story in North Ranch

Valleys move more water than any other part of a roof, and when the person who installed the last layer cut the shingles instead of weaving them, the valley becomes a seam waiting to fail. This one had. We stripped the valley down to the decking, checked for rot, installed peel-and-stick membrane the full length, and re-laid the shingles in a woven pattern so water sheets through without finding an edge to grab. Two winters since, no callbacks. If there ever is one inside the first year, the repair guarantee covers return work at no charge.

Roof Replacement After Santa Ana Wind Damage in Thousand Oaks

Santa Ana winds in the Conejo Valley don’t just blow through; they get under shingle edges and peel them back like pages in a book, and the damage is rarely limited to the slope that took the first hit. This roof had a dozen lifted tabs on the windward side and hidden stress fractures across the rest of the field that would have leaked within a season. We replaced the entire slope with a new GAF Timberline system and documented the condition of the underlayment before covering it. Written price up front, fixed, no change order added because we found what we expected to find.

Want Results Like These?

Every job above and below the roofline starts the same way Mercer Roofing has operated since 2000: a written price before work begins, a written guarantee on every repair, and a technician whose name and photo you see before they arrive. Call (805) 309-3314 to schedule your free estimate in Thousand Oaks. A live person answers, day or night.

Written by Grant Whitlock, Owner at Mercer Roofing Co Thousand Oaks, serving Thousand Oaks since 2000.