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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Tamko Roof Repair in San Antonio: What to Know First
Tamko roof repair in San Antonio typically runs between $350 and $1,400 depending on what failed, and most Tamko-specific repairs take us half a day to a full day on site. We’re an independent Tamko service provider, not a factory-authorized shop, which means we make repair decisions based on what’s actually best for your roof, not what a manufacturer program dictates. If you own a Tamko roof and something’s leaking, lifting, or looking wrong, call us at (254) 276-4369 and we’ll give you a straight answer and a written price before any work starts.
This page is for homeowners in San Antonio and the surrounding Hill Country areas who have Tamko shingles and need honest repair guidance, not a sales pitch. Grant Whitlock and our crew have repaired enough Tamko roofs across Alamo Heights, Stone Oak, and the older neighborhoods inside Loop 410 to know exactly where these shingles fail and why.
How Tamko Products Fail and How We Fix Them
Every shingle brand has its own personality, and Tamko is no exception. Here’s what we see most often on San Antonio roofs and what we do about it.
- Heritage series granule loss along the south-facing slopes. Tamko Heritage shingles hold up well overall, but San Antonio’s sun is relentless on south and west exposures. We see premature granule shedding on roofs that are only 8 to 10 years old, which exposes the asphalt underneath and accelerates aging. We replace affected shingles with matched Tamko stock where color is still available, or we document the granule loss so you know exactly how much life is left before a full replacement makes sense.
- Titan XT sealant strip separation after high-wind events. Tamko Titan XT is marketed for impact and wind resistance, but the sealant strips can break free from the shingle below during the gust fronts that roll through San Antonio ahead of spring thunderstorms. When shingles unseal, they flap, and flapping shingles tear at the nail line. We re-seal lifted shingles with a manufacturer-compatible adhesive and replace any that have torn. The fix takes under an hour most days.
- Flashing failures at Alamo Heights hip-and-valley roofs. Tamko shingles on older Alamo Heights homes are often installed over original 1950s and 60s framing, where valleys were cut tight and flashing has since corroded. The Tamko product itself is rarely the problem here, but water follows the failed valley metal under the shingles. We pull the affected courses, replace the valley flashing with new galvanized or aluminum stock, and re-lay the Tamko shingles so the repair blends and drains properly.
- Pro series nail-line popping on steep pitches. San Antonio roofers see a lot of steep transitional roofs, and on those pitches the nail line matters. When Tamko Pro series shingles are nailed too high, the fasteners miss the nail strip and the shingle slowly slides or tears. We reset those shingles with correctly placed fasteners and replace any that have already torn. It’s a small repair that prevents a much bigger leak later.
- Vent boot gaskets cracking around dormer and plumbing penetrations. This is not unique to Tamko, but it’s worth knowing: the rubber boot around your plumbing vents dries out in San Antonio’s heat after about a decade, and water leaks follow the pipe into the attic. We replace the boot and seal the pipe collar, then retreat the surrounding Tamko shingles so the repair is watertight and looks like it belongs there.
Styles & brands we work with
Our Tamko Roof Repair Process
When you call Mercer Roofing Co San Antonio about Tamko roof repair, here’s what happens.
- 1
You call, a person answers. A live human takes your call at (254) 276-4369, asks what you’re seeing, and schedules a visit. You’ll get the technician’s name and photo before they arrive.
- 2
We diagnose on the roof, not from the driveway. Our technician gets on the roof, walks the affected area, and identifies the root cause, whether it’s a failed sealant strip, damaged flashing, or a nail-line issue.
- 3
You get a written price before we touch anything. No work starts without your sign-off on a written estimate. That estimate is the price. No surprises on the invoice.
- 4
We make the repair with OEM Tamko parts where possible, quality equivalents where the line is discontinued. If your Tamko color or series is no longer made, we’ll tell you what comparable stock we’re using and why.
- 5
We test the repair, clean the roof, and walk you through what was done. You shouldn’t have to guess what we fixed. We explain it in plain English.
- 6
You get a written guarantee on the repair, good for 365 days. If the repair fails within a year, we come back and make it right. Free second visit, included in the original job.
See the difference
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After
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AfterWhat Tamko Roof Repair Costs in San Antonio
Here are honest price ranges for the Tamko repairs we do most often in San Antonio. These are for a typical single-family home; bigger roofs, steep pitches, and multi-story access move the bottom and top ends.
- Shingle replacement (a few shingles, matched Tamko color): $350 – $700
- Leak repair with flashing replacement (valley, step, or counter flashing): $600 – $1,400
- Vent boot replacement (with surrounding shingle seats re-done): $400 – $800
- Flat roof patch (on a Tamko flat-roof system or modified bitumen): $500 – $1,200
- Valley repair (full removal and replacement of valley flashing and surrounding shingles): $800 – $1,800
Two things move the price on any repair: the slope of your roof and how much decking we find rotten underneath once we open the area up. We’ll tell you the full range up front, in writing. Call (254) 276-4369 for a free estimate, and we’ll put a number on it before you commit to anything.
Why San Antonio Homeowners Call Mercer Roofing Co San Antonio for Tamko Work
Most roofers can nail a shingle down. Fewer know that Tamko Heritage and Titan XT seal differently in San Antonio heat, or that the nail line on a Pro series shingle is less forgiving than it looks. Our techs work on Tamko roofs regularly, and when a Tamko line is discontinued or a color is hard to match, we know how to blend a repair without it looking like a patchwork quilt.
Every technician who arrives at your door is background-checked, identity-verified, and badged. You’ll know their name and see their photo before they knock. That’s the Threshold Standard we’re held to, and it’s the part of our service homeowners most often mention afterwards. We’re part of the Threshold Group family, founded in 2000, and we keep the same promises: a written price before work starts, a written 365-day guarantee on every repair, and a live person on the phone 24/7 when you call. We also work with GAF, Owens Corning, CertainTeed, and other shingle brands, so if your repair ever leads to a conversation about replacement, we can quote the full picture, not just one brand.
Grant Whitlock and the San Antonio crew have been on enough Tamko roofs to know that the real work is in the details: the flashing at the chimney, the way a valley drains after a Hill Country downpour, the sealant sticking in August. A roof shouldn’t be something you worry about, that’s our job.
FAQs
In most cases, no, as long as the repair is done correctly and does not alter the original installation in a way Tamko’s warranty excludes. We’re an independent Tamko service provider, so we work with your roof the way it was built and keep the repair limited to what’s needed. If your Tamko warranty has specific requirements, we’ll review them with you before we start.
Most Tamko roof repairs in San Antonio run between $350 and $1,400, with larger flashing or valley work reaching $1,800 on steep or complex roofs. The biggest cost variables are roof pitch, the number of layers we have to work through, and how much decking needs replacement once we open the area up. Call (254) 276-4369 for an exact quote, the estimate is free.
We use OEM Tamko shingles and accessories whenever the original color and series are still available. When a Tamko line has been discontinued or a color has aged beyond a close match, we’ll use a quality aftermarket equivalent and tell you exactly what we’re using and why. We never install parts you haven’t approved in writing.
Many small Tamko repairs, like replacing a few lifted shingles or a cracked vent boot, can be completed the same day if we have the right color in stock and the weather allows safe roof access. Larger flashing and valley repairs usually need a full day and sometimes a return visit if decking needs to dry out. We’ll give you a clear timeline when we quote the job.
No. The written price we give you before work begins is the price on the invoice. The only exception is if we open up the roof and find rotted decking that could not have been seen from the exterior, in which case we’ll stop, show you the problem, and get your written approval before any additional work happens. That’s the no-hassle part of our upfront pricing promise.
Written by Grant Whitlock, Owner, Mercer Roofing Co San Antonio at Mercer Roofing Co San Antonio, serving San Antonio and nearby areas.