Roof Repair in West Hills, CA | Mercer Roofing

Roof Repair in West Hills - Free Inspection, Itemized Written Quote

Free roof inspection with photos, then an itemized written price before anything is ordered. Installed by our own licensed crews and backed by a workmanship warranty.

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Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation

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Styles & brands we work with

Architectural shingles
Architectural shingles
Metal roofing
Metal roofing
Tile roofing
Tile roofing
GAF
GAF
Owens Corning
Owens Corning
Flat & low-slope
Flat & low-slope

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Recent Project
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Complete Upgrade

Fast, Reliable Roof Repair Across West Hills

Roof repair in West Hills runs anywhere from $350 for a simple vent boot replacement to $1,800 – $3,400 when wind uplift tears ridge caps off and the leak reaches decking. Most jobs we schedule within a few days, since our crews serve West Hills directly from the Los Angeles dispatch office. If you’re seeing water stains on a ceiling under a west-facing slope, call (743) 200-8347. We’ll send a technician whose name and photo you get before they arrive.

Call (743) 200-8347

Why Mercer Roofing Is West Hills’s Preferred Roof Repair Company

Mercer Roofing has been repairing roofs since 2000, and in West Hills the work tends to be harder than it looks. The tract homes off Valley Circle Boulevard and around the 91307 ZIP code wear original framing and decking from the 1960s and 1970s, and half the job is figuring out what’s failing underneath the shingles before the next Santa Ana event exposes it. Homeowners here call us because we hand them a written price before any work starts, and because every technician who walks up the driveway is background-checked, badged, and in a clean uniform. You know who’s coming. That matters on a street where someone’s home alone with young kids and a stranger at the door is a real concern.

Our work in West Hills is backed by the 365-Day Done Right Promise. If a repair we made doesn’t hold, we come back and make it right at no charge. That guarantee is written, not implied, and it’s included with every job. We’re part of the Threshold Group family, and every Mercer location operates under the Threshold Verified standard: identity-verified technicians, photo ID at the door, and dispatch you can reach by phone around the clock. A live person answers. Not a voicemail.

Grant Whitlock, who runs our team, has built the West Hills service area around one honest principle: the price we quote is the price you pay. No open-ended allowances, no vague verbal estimates. If your decking is rotted out under the felt, we’ll price the replacement in writing and get your approval before we cut into anything.

Roof Leak Repair in West Hills

Roof Leak Repair in West Hills usually costs between $450 and $1,600, depending on whether the water is moving through a single vent boot, a valley, or a stretched-out section of flashing. The first step is always finding the actual entry point, which on a West Hills tract home is rarely directly above the ceiling stain. Water travels along rafters and sub-fascia, often pooling twenty feet from where it enters.

West Hills sits in the Simi Pass wind corridor, and leak repair here is often wind-driven. The same Santa Ana gusts that push embers through the canyons also peel back ridge caps and lift field shingles at the rake edges. We see leaks that only open during a wind event, which is why our crews check the nailing pattern at the perimeter before patching anything. A fast patch that skips the wind rating will fail at the next gust.

Flashing is the other usual suspect. On a 1970s roof, the flashing around chimneys, skylights, and plumbing stacks was often nailed directly over bare wood with no weather barrier. Decades of thermal cycling crack the sealant, and the water gets in where the nail penetrates. We replace it with proper underlayment and corrosion-resistant metal, priced and approved before we touch the deck.

Vent Boot and Flashing Repair

Vent boots crack from UV exposure faster in West Hills than in most of the San Fernando Valley. The western exposure and intense summer heat loading shorten a rubber boot’s life to about eight to ten years. Replacing one typically runs $350 – $550 and stops a slow drip that’s been staining attic insulation for months.

Valley and Ridge Repair

Valleys channel more water than any other roof point, and on older West Hills homes they were often woven with thin shingles and no membrane. When we open one, we usually find the paper is gone and the deck boards are dark. Repair ranges from $600 – $1,400 depending on valley length and how much sheathing has to come out. Ridge and rake repairs run $450 – $900 and usually include resetting popped caps along the full length, not just the visible gap.

Emergency Roof Repair in West Hills

Emergency Roof Repair in West Hills starts around $500 for a tarp and localized repair after storm or wind damage, and rises from there if the decking has failed or the leak has breached the ceiling. A live person answers the phone at (743) 200-8347 whenever you call, day or night, and knows to ask the right questions: where is the water showing, when did it start, and is there wind damage at the ridge. We get a technician to you as fast as the schedule allows.

The most common emergency here isn’t rain. It’s wind. During a Santa Ana event, ridge caps pop, rake shingles lift, and the roof opens at its most exposed edges. Homeowners sometimes don’t notice until the next rain, weeks later. We see it every fall. The repair itself is straightforward: reset and re-nail caps, replace torn field shingles at the rakes, and check the fascia for nail pull-through. The larger issue is that a roof that’s opened once in the wind will open again unless the whole perimeter is brought back to a rated nailing pattern.

If you’ve got water coming through a light fixture or running down an interior wall, cut power to the room and call us. Don’t wait. The longer water sits in a ceiling cavity, the wider the repair becomes. Tarping gets us to the dry window, and a same-week repair follows.

Wind Damage Fast Response

Our West Hills crews carry ridge cap, rake shingles, and matching GAF and Owens Corning stock, so we’re not sourcing for three days while the roof stays open. Most wind repairs are done in one visit.

After the Storm

After a high-wind night, we recommend a walk or a drone look at the ridge and rakes even if you don’t see a leak. A popped cap lets small amounts of water in slowly, and by the time it stains a ceiling, the decking underneath is already damaged. An inspection is quick and gives you a clear written report.

Trusted Brands We Service in West Hills

We repair and install GAF, CertainTeed, and Owens Corning shingles, and we keep common West Hills stock on hand: ridge cap, starter strip, pipe boots, valley metal, and step flashing. That means fewer scheduling delays for our neighbors. If your roof was done in a GAF architectural shingle in the last ten years, we can match it closely enough that a repair doesn’t look like one. Our crews are manufacturer-trained on these systems, and we spec products that meet West Hills’s fire-zone requirements, which matters more here than in most of the Valley.

Common Roof Repair Problems We See in West Hills Homes

  • Popped ridge caps and lifted rake shingles. The Simi Pass funnels wind straight into West Hills, and older roofs shed their edges. A full perimeter re-nailing is often the only repair that holds through the next wind season.
  • Rot under what looks like a clean roof. Tract homes built in the 1960s and 1970s often still carry original wood shake or first-generation composition shingles over failing decking. New shingles over that hide the rot until it spreads.
  • Flashing gone to bare wood. Original step flashing around chimneys and valleys was nailed over nothing. Once the sealant fails, water walks right into the framing. The visible shingles often look fine.
  • Fire-zone assembly mismatches. A previous homeowner patches a small section with non-Class A material, and now the assembly doesn’t meet Chapter 7A. When a permit gets pulled, that mismatch has to be corrected before anything else proceeds.

Pricing for Roof Repair in West Hills, CA

Here’s what to expect in West Hills. Vent boot replacement: $350 – $550. Flashing repair at a chimney or valley: $450 – $1,000. Ridge and rake re-nailing: $450 – $900. Leak repair that reaches decking: $800 – $1,600. Full valley rebuild with membrane: $600 – $1,400. If a repair opens the roof assembly in this fire-zone, Chapter 7A upgrades like ember-resistant venting or fire-rated underlayment may add $500 – $2,000. Every estimate is free, written, and line-itemed, with a fixed price before we start. Call (743) 200-8347 to schedule yours.

We Also Serve Cities Near West Hills

Our crews serve West Hills and the surrounding area, including Canoga Park, Woodland Hills, Calabasas, and Chatsworth. If you’re outside our immediate service area, call anyway. We regularly take on Roof Repair work in the western Valley where the wind and fire-zone requirements overlap, and we’ll tell you honestly if we’re the right fit.

Serving West Hills, CA - Our Local Coverage Area

We’re based in the West Hills 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 West Hills

Why West Hills Chooses Mercer Roofing

We set the standard for roof repair in West Hills.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in West Hills

Getting your roof repair handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roof repair needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in West Hills - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roof repair pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What West Hills Customers Say

Trusted by homeowners across West Hills and surrounding areas.

★★★★★

"Chimney flashing was the culprit for years of dark stains on the ceiling. Fixed it in one visit and no more stains."

Ian O. · Verified customer
★★★★★

"Roofer showed his ID and gave me the crew lead's name before anyone climbed the ladder. Replaced a patch of missing shingles and resealed two vent boots. Written estimate matched the final bill."

Brian J. · Verified customer
★★★★★

"Full tear-off and new shingles on our two-story. They covered the landscaping with tarps and ran a magnet over the yard afterward. Didn't find a single nail."

Karen V. · Verified customer

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