Metal roofing
Architectural shingles
Tile roofing
GAF
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Westlake Village
Roof repair in Westlake Village usually costs between $350 and $2,800 depending on what’s failing, with leak repairs starting around $350 and full valley or flashing replacements running higher. Most repairs on the custom and semi-custom homes here are completed in a single day once materials are confirmed and any required architectural approvals are in hand. If you’re seeing water stains on a tray ceiling or lifted tiles after a Santa Ana wind event, call (805) 309-3314 and a live person answers, day or night. We know this city’s roofs and its review process, and we’ll walk you through both.
Why Mercer Roofing Co Thousand Oaks Is Westlake Village’s Preferred Roof Repair Company
Westlake Village homeowners call us because we treat the roof and the process around it as one job. The tile profiles, the HOA submittal packet, the Design Review Committee timeline, the flashing details on a steep Mediterranean hip roof. We handle all of it, and every technician who arrives at your door is background-checked, identity-verified, and wearing a photo ID badge under the Threshold Verified standard. You’ll get the technician’s name and photo before they arrive, so you know exactly who is stepping onto your property before they ring the bell.
We’re part of the Threshold Group family, founded in 2000, and every Mercer location is independently owned and operated but held to the same standard: a written price before any work starts, a written guarantee on every repair, and a live person answering the phone 24/7. For homeowners in Westlake Village, that means one call covers the repair and the approval paperwork, and you’ll never be left guessing who’s coming or what it will cost. Grant Whitlock leads our team, and his name is on the standard we hold every technician to.
Our crews serve Westlake Village locally, with dispatch and scheduling coordinated from the brand’s Los Angeles office. That means when you call about a leak near the Westlake Golf Course or a cracked ridge cap in Three Springs, the person who answers knows the area and can route a technician who has worked on homes just like yours. The 365-Day Done Right Promise covers every repair: if it’s not right within a year, we make it right, in writing, at no additional cost to you.
Styles & brands we work with





Flat Roof Repair in Westlake Village
Flat Roof Repair in Westlake Village typically runs between $400 and $1,800, and it’s a job we see most often on the modern and contemporary homes built in the 1980s and later, especially in the hillside tracts and gated communities along Lindero Canyon Road. These homes often include flat or low-slope sections over garages, entryways, or second-story additions, and they rely on membrane systems that fail differently than pitched shingle or tile roofs. A small split in the membrane near a scupper or a failing seam at a parapet wall can let water in slowly for months before it shows up as a stain on an interior ceiling.
Membrane Patching and Seam Failures
Most flat roof repairs here involve finding the actual breach, not just where the water drips from. On low-slope sections, water travels sideways along the decking before it drops, so a stain in the living room may trace back to a seam twenty feet away. We patch the membrane, re-seal seams, and when the decking underneath is compromised, we cut out and replace that section before the new membrane goes down. On modern Westlake Village homes, we often match the existing membrane system rather than switching materials, because a mismatched patch can fail at the transition point.
Drainage and Ponding Corrections
Flat sections on custom homes here sometimes settle over time, creating low spots where water ponds after the heavy winter rains we get every few years. That standing water works on the membrane until it finds a seam or a penetration. We correct the slope where we can, clear scuppers and internal drains, and re-flash any penetrations like vent stacks or skylights that are letting water through. A flat roof patch on a Westlake Village home is usually a same-visit fix once we’re on the roof, and you’ll have a written price before we start.
Shingle Roof Repair in Westlake Village
Shingle Roof Repair in Westlake Village typically runs from $350 for a small leak repair or a few lifted shingles up to $2,800 for a full valley rebuild or a large section replacement. Most of the shingle roofs we work on here are on homes built in the 1970s through the 1990s, before Mediterranean tile became the default style for newer construction in communities like North Ranch and the gated estates off Westlake Boulevard. Intense summer sun beats on these roofs from June through October, and the UV degradation of asphalt shingles is real: granules erode, shingles cup, and the occasional Santa Ana wind event lifts edges that were already failing.
Valley and Flashing Shingle Repairs
On shingle roofs in Westlake Village, the valleys and cricket intersections are where leaks start. A lifted shingle near a valley channels rainwater sideways under the surrounding shingles, and that water finds its way into the soffit or down an interior wall. We rebuild valleys with proper underlayment and re-lap shingles so water stays moving down instead of sideways. Flashing at chimneys, skylights, and sidewalls gets the same attention, because on shingle roofs those transitions are the first thing to fail after ten or fifteen years of sun and wind.
Storm and Wind Damage Shingle Replacement
After a Santa Ana event, we get calls from homeowners who look up and see shingles in the yard or a dark patch of exposed underlayment on the roof. That exposed area is now a leak waiting to happen, and the fix is usually a focused replacement rather than a full re-roof. We match shingle brands including GAF, CertainTeed, and Owens Corning to keep the roof looking uniform, and we check the surrounding shingles for hidden lifting. You’ll get a written price before we pull a single nail, and the repair is covered by our written guarantee.
Trusted Brands We Service in Westlake Village
We service and repair the shingle and tile brands most common across Westlake Village, including GAF, Atlas, and Boral. When a Mediterranean home off Triunfo Canyon Road needs cracked ridge caps replaced, we source Boral concrete tile matched to the original profile and color, because a close-but-not-exact tile can trigger a stop-work order from an HOA architectural committee. Our crews carry common repair materials for the brands we see most often, which shortens turnaround when a fix is straightforward. For less common profiles, we locate and confirm the match before scheduling tear-off, and we never start a job without the written approval in place when it’s required.
Common Roof Repair Problems We See in Westlake Village Homes
- Cracked ridge caps and hip tiles on older Mediterranean homes. Thermal expansion from the Lake Sherwood and Westlake Village climate, with hot days and cool nights, stresses the mortar bedding and the tiles themselves. Leaks from these failures often show up first as water stains on tray ceilings, far from the actual breach on the ridge line.
- Flat roof membrane splits on modern and contemporary homes. The low-slope sections found on many custom builds from the 1980s and later are sealed membrane systems, and a failed seam or a puncture near a scupper lets water in slowly. By the time you see the stain, the leak has been running for weeks.
- Flashing failures at valley and cricket intersections. Westlake Village’s custom homes have complex roof geometries with multiple hips, valleys, and steep pitches. A single lifted tile or shingle near a valley channels rain sideways during a storm, and that water finds the soffit or an interior wall before you find the problem.
- HOA-driven tile mismatches that need correction. Some homes here have had previous repairs done with the wrong tile profile or color, which then fails review or leaks because the mismatch left a gap. We correct those by sourcing the exact profile the HOA covenants require and re-bedding the affected section properly.
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AfterPricing for Roof Repair in Westlake Village, CA
Expect to spend between $350 and $2,800 for most roof repairs in Westlake Village, with leak repairs starting around $350, flat roof patches running $400 to $1,800, and full valley rebuilds or large shingle section replacements reaching $2,800. Tile re-bedding and re-pointing on Mediterranean homes typically falls in the $600 to $2,200 range depending on how many ridge and hip tiles need to be lifted and reset. What drives the price up is the amount of scaffolding or steep-pitch safety equipment our crew needs, and whether architectural review is required before we can schedule the work. Every quote from us is a written, line-item price before any work starts, so the number you approve is the number on the invoice. No change orders, no surprise line items. Call (805) 309-3314 to schedule a free estimate, and we’ll give you a real number you can plan around.
Key Takeaways:
- Most Westlake Village roof repairs cost $350 to $2,800 depending on the failure.
- Architectural review can add 2 to 6 weeks to the timeline for tile work on HOA-governed homes.
- You’ll get a written price before any work starts, and a written guarantee on every repair.
- Our technicians are background-checked, uniformed, and photo-badged under the Threshold Verified standard.
We Also Serve Cities Near Westlake Village
Our crews handle Roof Repair work throughout the Conejo Valley, including Thousand Oaks, Agoura Hills, Oak Park, and Calabasas. Many homeowners in those neighboring cities face the same architectural review requirements and Mediterranean tile details we see throughout Westlake Village, so the process we use here travels well. If you’re nearby and need a written price on a roof repair, call (805) 309-3314 and we’ll get you scheduled.
Serving Westlake Village, CA - Our Local Coverage Area
We’re based in the Westlake Village area 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 Repair in Westlake Village
Start the architectural review at least 2 to 6 weeks before you want work to begin, because that’s how long the city’s Design Review Committee and your HOA’s architectural committee typically take to issue written approval for roofing changes. For minor repairs that don’t change materials or colors, review may be waived or expedited, but for tile re-bedding, re-pointing, or any visible repair on a home in a gated community with covenants, assume you need the full window. We file the submittal packet for you, including the tile or shingle specification, color, and profile, and we schedule tear-off only after the written approval is in hand. Call (805) 309-3314 and we’ll tell you honestly whether your specific repair triggers review and how long it should take.
In most cases, yes, replacing a handful of cracked clay or concrete tiles with the same profile and color does not trigger a full roof review, but many HOAs in Westlake Village still require notice and sometimes a simple repair approval before work starts. The key is exact matching: if you use a close-but-not-exact tile profile, the repair can be flagged, and you may face a stop-work order and a costly re-do. We source from Boral and other manufacturers to match the original tile exactly, and we file whatever documentation the HOA requests. For a quick fix that holds up, call (805) 309-3314 and we’ll confirm the match and the approval path before we touch the roof.
Tile roofs in Westlake Village need re-bedding and re-pointing because the Mediterranean and Spanish Colonial styles common here use ridge caps and hip tiles set in mortar, and the thermal expansion from our hot days and cool nights slowly cracks that mortar and the tiles themselves. The morning sun hits the ridge line first, and over years of daily expansion and contraction, the bedding crumbles and the caps loosen. Once a ridge cap shifts, water enters at the top of the roof and travels down before showing up as a tray ceiling stain far below. We re-bed and re-point with matched Boral tile and fresh mortar, and the repair is covered by our written guarantee. Call (805) 309-3314 for an exact quote on your roof.
When a roof is actively leaking and architectural approval is still pending, we install a temporary weatherproof seal that stops the water entry without changing the roof’s appearance or materials enough to trigger a violation. That means tarping or a peel-and-stick membrane patch at the breach, secured properly, so the interior stops taking on water while the approval process finishes. We document the temporary fix for the HOA if needed, then return to complete the permanent repair once the written approval is issued. Your roof never sits half-open waiting on a committee, and the repair is done right the second time. To start, call (805) 309-3314 and we’ll come evaluate the leak and the approval path together.
Yes, flat and low-slope sections on modern Westlake Village homes require membrane-specific repair, not shingle or tile patching, because these sections are sealed systems that fail at seams, scuppers, and penetrations rather than at individual tile overlaps. The repair starts with finding the actual breach, which is often far from the interior stain because water travels sideways on low-slope decking. Then we patch or replace the membrane, re-seal the seams, and correct any ponding that caused the failure in the first place. These repairs usually run $400 to $1,800 depending on the decking damage. Call (805) 309-3314 for a written quote on your flat section.
Contact Mercer Roofing Co Thousand Oaks for Roof Repair in Westlake Village
If you’re seeing a water stain, hearing dripping after a storm, or noticing lifted tiles after a Santa Ana wind event, call us at (805) 309-3314. A live person answers, not a voicemail, and we’ll walk you through what you’re seeing, whether it needs a repair, and what it will cost to fix it right. We’ll send a background-checked, uniformed technician with a photo ID badge, and you’ll get their name and photo before they arrive. The estimate is free, the written price is guaranteed before any work starts, and every repair includes our 365-Day Done Right Promise in writing. Call (805) 309-3314 today.
Written by Grant Whitlock, Owner at Mercer Roofing Co Thousand Oaks, serving Westlake Village with written-price roof repair and Threshold Verified technicians.