Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Repair Across Covina
Roof repair in Covina usually means one of two things: a leak that showed up after the last Santa Ana wind, or shingles that have been baking in 105-degree heat for fifteen years and finally gave out. Most asphalt-shingle repairs here run between $350 and $900, and we can typically get a crew to your Covina home within one to two days, often sooner. You need someone who knows these 1950s and 1960s ranch roofs, not someone reading a ladder manual for the first time. Call (945) 303-9821 and we’ll walk you through what we’re seeing.
Why Tilehurst Roofing Is Covina’s Preferred Roof Repair Company
Covina homeowners call us because they’ve already been burned once by a contractor who no-showed or changed the price at the front door. That doesn’t happen with Tilehurst. Every job starts with a written price in your hands before any work begins, and every repair carries a written guarantee delivered before our crew leaves your driveway. If a repair fails inside the guarantee period, we return and fix it at no charge under the 365-Day Done Right Promise. Greg Holloway, who leads our team, is direct about it: we say the price before the work, we show up in the window we gave, and we leave the place cleaner than we found it.
Our Roof Repair crews work in Covina weekly. We know the difference between a ridge cap lifted by a 50-mph northeast gust off the San Gabriel range and one that’s just old. We know where the undersized soffit vents hide on a 1963 ranch on the east side. And we stock parts locally, so we’re not waiting on a warehouse in Fontana to ship a vent boot while your ceiling stains spread.
Storm Damage Roof Repair in Covina
Storm Damage Roof Repair in Covina usually follows one of two events: a Santa Ana wind event that peeled ridge caps and step flashing off low-pitch ranch rooflines, or a summer thunderstorm that found the gap where dried-out flashing sealant finally cracked. In Covina, storm damage is almost always wind damage. The hot, dry northeast wind accelerates through the San Gabriel Valley passes and hits these exposed ranch roofs hard. We routinely see 50-plus mph gusts tear shingles at the drip edge and lift entire ridge lines.
Storm damage repair here typically runs $400 to $1,200 depending on how many ridge caps lifted and whether the underlayment below was exposed. If the Santa Anas came through hard, we’ll also check the step flashing at every wall intersection, because that’s where the next leak starts. Call (945) 303-9821 before the next front moves through and we’ll get you on the schedule.
Ridge Cap Replacement After High Winds
Ridge caps are the shingles that fold over the peak of your roof, and on Covina’s ranch homes they take the full force of every Santa Ana gust. When they lift, water finds the nail holes left behind. We replace missing ridge caps, re-secure loose ones, and check the sealant line beneath each one. Most ridge cap replacement jobs in Covina run $300 to $600 per ridge line.
Step Flashing Repair at Wall Intersections
Step flashing is the bent metal that bridges where your roof meets a vertical wall like a chimney or an attached garage. In Covina, the original builders often used standard steel, which rusts through after a few decades of valley heat and occasional rain. When it fails, water runs behind the stucco and into the wall cavity. We pull the rusted flashing, install hot-dip galvanized replacements, and re-seal the junction. This repair usually runs $500 to $900 in Covina, depending on the length of the wall line.
Metal Roof Repair in Covina
Metal Roof Repair in Covina covers standing seam panels, corrugated metal patio covers, and the metal drip edge and flashing systems on conventional shingle roofs. On Covina’s 1950s-era ranch homes, the metal components are often the first thing to go, because the original builders used plain galvanized steel that rusts at the fastener points after thirty or forty years of valley heat and winter rain. Metal repair here includes replacing rusted fasteners with hot-dip galvanized or stainless, patching torn seams, and re-sealing penetrations with UV-stable sealant rated for Covina’s 100-plus degree summers. Plan on $450 to $1,100 for typical metal roof repair in Covina.
Drip Edge and Fascia Repair
Drip edge is the metal strip along your roofline that channels water into the gutters instead of behind them. On Covina ranch homes, original drip edge is often thin, rusted, or missing entirely, which rots the fascia board behind it. We replace deteriorated drip edge, repair the fascia, and verify the gutter line is secure. Expect $400 to $800 for a typical drip edge and fascia repair in Covina.
Valley Metal and Flashing Re-Set
The valleys, where two roof planes meet, funnel more water than any other part of the roof. In Covina, valley metal installed in the 1960s has often rusted through at the seams. We remove the old valley metal, inspect the decking beneath, install new galvanized valley flashing, and re-lay the shingles. Most valley repairs in Covina run $500 to $950 per valley.
Trusted Brands We Service in Covina
We work with materials from seven major manufacturers, and we stock what Covina roofs actually need: GAF Timberline shingles for the classic ranch replacement, CertainTeed for dimensional and architectural profiles, and Owens Corning for their duration-rated shingles that hold up under relentless San Gabriel Valley sun. We also regularly service and repair original Boral clay tile on Covina’s older bungalows near the historic downtown corridor. Because we stock locally, your repair doesn’t wait on a distributor truck. Call (945) 303-9821 and we’ll tell you exactly what’s in stock for your roof.
Common Roof Repair Problems We See in Covina Homes
- Heat-driven deck delamination: Covina’s 1950s and 1960s ranch homes were built with undersized soffit vents, so by year 15 the attic regularly hits 150 degrees plus, cooking the plywood decking from below while UV attacks from above. The shingle swap you planned becomes a partial sheathing replacement, because the deck is delaminating under every other shingle.
- Ridge cap and step flashing loss in Santa Ana winds: Fifty-plus mph northeast gusts through the San Gabriel Valley pass peel ridge caps and tear step flashing on low-pitch ranch rooflines. Standard sealants dry out and crack in Covina’s 100 to 108 degree summers faster than they would anywhere west of the 605.
- Premature shingle granule loss: Without any marine layer moderating the heat, Covina’s UV and thermal cycling split aging shingles and dry out flashing sealants noticeably faster than in coastal LA County. Most 1950s to 1970s tract roofs here are now due for their second or third full replacement.
- Original clay tile and wood shake failures near downtown: Covina’s surviving 1920s to 1940s bungalows sometimes still wear their original clay tile, and Boral tile from that era cracks and spalls under decades of valley sun. We repair individual tiles when possible and source matching replacements when not.
Pricing for Roof Repair in Covina, CA
Here’s what Covina homeowners can expect to pay. Shingle replacement runs $350 to $900 depending on the size of the field and whether we need to replace underlayment. Leak repair typically runs $300 to $700, though a leak that’s been running for months may need decking work that pushes it higher. Flashing repair runs $450 to $950. Flat roof patches run $400 to $850. Vent boot replacement runs $250 to $450 per boot. Valley repair runs $500 to $950 per valley. If your repair requires partial sheathing replacement, add $3 to $5 per square foot of decking. You’ll get a written price before we start, every time. Call (945) 303-9821 for a free estimate on your Covina roof.
We Also Serve Cities Near Covina
Tilehurst Roofing serves homeowners throughout this part of the San Gabriel Valley, including Azusa, West Covina, Baldwin Park, and Glendora. If you’re in one of those cities and need the same written-price, written-guarantee approach, our Roof Repair in Covina team covers your area too. Call (945) 303-9821 and we’ll route you to the right crew.
Serving Covina, CA - Our Local Coverage Area
We’re based in the Covina 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 Covina
Covina’s 1950s and 1960s ranch tract homes were built with undersized soffit vents, so by the time the roof is 15 years old, the attic runs 150 degrees or hotter every summer. That heat cooks the plywood decking from below and delaminates it. When we pull shingles to fix a leak, we often find the decking has separated in layers and can’t hold a nail. Replacing that sheathing is the correct repair, and it’s why Covina repairs so often run a few hundred dollars more than the same repair in a coastal city where marine air kept attics cooler. Call (945) 303-9821 for an inspection that tells you before we start.
We specify hot-dip galvanized and stainless hardware for Covina roofs, because the inland valley heat dries out standard sealants and the Santa Anas stress every fastener point. On a 1962 ranch in the Charter Oak area, we tore off a 22-square field of failed architectural shingles and found the original 1960s soffit venting was so undersized that the plywood decking had delaminated across three bays. Our crew sistered in new sheathing, installed a ridge vent and upgraded the intake, then laid GAF Timberline shingles with new drip edge and ice and water shield at the valleys. On another job off Citrus Avenue, we replaced 14 cracked Boral clay tiles and re-set them with hot-dip galvanized flashing at the penetrations, which had been leaking for years because the original builder used standard steel that had rusted through.
No, and this is where Covina homeowners get burned. One bid may quote a shingle swap at $700, while another quotes $1,400. The difference is usually sheathing: if one contractor inspected the attic and found delaminated decking, their bid includes the sheathing replacement. The cheaper bid doesn’t, because they never looked. If you accept the cheap bid, the crew will either reuse delaminated decking, which fails quickly, or discover the problem on day one and hand you a change order at the door. Tilehurst gives you a written price that includes everything we can see before tearing off, and we tell you what we might find underneath. Call (945) 303-9821 for a bid that actually matches the scope.
In most cases we can repair individual cracked or spalled Boral clay tiles without disturbing the rest of the roof. Covina’s surviving bungalows near the historic downtown corridor sometimes still wear original tile from the 1920s through 1940s, and that tile is often in better shape than people fear, though it takes a trained eye to tell. We source matching replacement tiles when available, re-set loose ones, and replace the metal flashing beneath tile valleys and penetrations, which is where the real leaks usually are. Call (945) 303-9821 and we’ll tell you whether it’s a repair or a replacement.
Yes, and this is the single biggest factor separating Covina roof repairs from coastal ones. The original 1960s-era builders routinely installed undersized soffit vents on these ranch homes, so by the time a roof is 15 years old, the attic is running 150 degrees or hotter in summer, cooking the sheathing from below while UV attacks from above. Fixing a leak without addressing the venting means the new decking will have the same problem in five years. When we find the venting is the root cause, our estimate includes upgrading the intake and adding ridge venting, because fixing the symptom without fixing the airflow is just selling the next repair early. Call (945) 303-9821 for an inspection that looks at the whole roof, not just the leak.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Covina.