Tamko Roofing Nationwide

Tamko Roofing: The Los Angeles Owner’s Guide

If you have a Tamko roof that is failing, here is the straight answer: Rowan Construction Group stocks Tamko-compatible products, installs them across Los Angeles, and a full roof replacement on a typical single-family home here runs $9,440 to $23,600. Repair work on Tamko shingles, flashing, or underlayment lands between $470 and $2,125 depending on what actually failed. Most Tamko owners discover a problem the same way: a leak shows up on the ceiling after a Santa Ana wind event, or loose granules start collecting in the gutters after a hot summer. You want to know what failed, what it costs, and whether it is worth patching or replacing. That is what this page covers.

Call (470) 298-9650

Which Tamko Models This Applies To

Tamko’s flagship lines in the Los Angeles market are Heritage (their architectural shingle series, which includes Heritage Woodgate and Heritage Vintage), Titan XT, Elite Glass-Seal, and MetalWorks steel shingle systems. The Heritage series dominates Southern California residential roofs because of its Class 4 impact rating option, which matters in neighborhoods like Porter Ranch or Granada Hills where debris from wind events is a recurring problem. That rating is something we check when we match a replacement part, because not every Heritage line carries it by default.

Identifying your specific Tamko product starts with the shingle dimensions and the manufacturer label on the bundle wrapper if you still have it. Heritage laminated shingles run roughly 13-1/4 inches by 39-3/8 inches with a 5-5/8 inch exposure. Titan XT runs slightly larger at 13-1/4 by 39-3/4 inches. If the wrapper is long gone, we pull a full shingle and check the sealant strip pattern and the mat weight, which tells us whether you are dealing with a post-2019 Heritage or an older Elite series. The OEM-vs-aftermarket question for Tamko is simple: we install Tamko-branded products because the color matching is exact and the warranty chain stays intact. Aftermarket equivalents exist, but on a visible roofing surface, a three-shade color mismatch on one slope is the kind of thing that shows up in every future resale photo.

We also stock limited Tamko accessories: Hip & Ridge caps, starter strips, leak barrier, and deck shield underlayment. If your roof has a MetalWorks steel panel that failed, that is a special-order item, not a truck-stock part.

Signs Your Tamko Roofing Is Failing

• Granule loss collecting in gutters or downspout elbows. Los Angeles heat cycles bake the asphalt layer, and once the ceramic granules start shedding, the shingle’s UV protection is gone. You will see a fine, sand-like grit pile up in the valley corners and at the base of downspouts.
• Curling or cupping shingle edges on south-facing slopes. The HA-HD zones in the San Fernando Valley and the Inland corridor push roof surface temperatures well past 160 degrees in August. Shingles curl at the corners first, and once the fiberglass mat is exposed, the shingle is done, not repairable.
• Stains on the underside of roof sheathing or wet insulation in the attic. This means water has already passed the underlayment. By the time you see a ceiling stain, the failure has been progressing for weeks to months. We map the moisture with a meter, not a guess.
• Flashing separation at chimneys, skylights, and wall-to-roof intersections. Tamko shingles are rarely the first point of failure on a well-installed roof. The metal and membrane transitions are, because expansion and contraction over a decade slowly breaks the sealant bond. We see this most often in older homes in Los Feliz, Silver Lake, and Pasadena where original chimneys were never re-flashed.
• Loose or missing shingles after wind events. The sealant strip on any architectural shingle has a finite bond strength, and once several shingles lift, the wind gets under the lap line and zips them off in sequence. Tamko’s Heritage line carries a 110 mph wind warranty only when installed with the correct number of nails and the proper sealant activation, which is not always what we find when we arrive on an existing roof.

Before

After

Replacement Cost & What’s Included

A Tamko roof replacement in Los Angeles runs between $9,440 and $23,600. The spread is driven by square footage, the number of roof planes, the condition of the existing decking, and whether you need a tear-off or can go over a single existing layer (LA code permits a second layer over one existing layer in most residential zones, but you should know that a second layer shortens the new roof’s life by 15 to 20 percent). The lower end of that range is a straightforward ranch house in the Valley with a simple gable roof and good decking. The upper end is a hillside roof in the Hollywood Hills or Mount Washington with steep pitches, multiple valleys, and decking that never should have been walked on again.

Every quote from us is a flat written price with a written scope. That means the tear-off, dump fees, underlayment, Tamko shingles, ridge caps, starter strips, flashing replacement, and cleanup are all on the page before you sign anything. If we open the roof and find decking damage, nothing proceeds until you see a signed change order with a specific dollar amount. That is the Haven Standard, Clause 1. The labor warranty on our Tamko installations matches the manufacturer’s product warranty on materials, and our workmanship is covered by the 365-Day Done Right Promise: if it is not done right, we make it right. The promise is printed on the page, not spoken over the phone.

DIY or Call Us?

Walking a roof is dangerous, and walking a two-story Los Angeles roof with a 6:12 pitch after it has been shedding granules is worse. We do not encourage homeowners to climb onto any roof. What you can do safely from the ground or from inside the house: check gutters for granule accumulation, look for visible shingle lift from the street with binoculars, inspect attic insulation for moisture stains, and photograph any interior ceiling staining with a date stamp. That documentation helps us quote accurately before we arrive. Repairs like replacing a single Tamko shingle are technically doable, but the sealant strip will not re-bond the same way in LA heat, and you are still climbing a ladder with a nail gun in one hand. Our crews are background-checked, uniformed, and they show up with the right Tamko color in the truck. Call (470) 298-9650 and we will put a written estimate in front of you, not a handshake.

FAQs