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Tamko Roof Installation in San Antonio: What to Know First
We install Tamko roofing systems across San Antonio as an independent Tamko service provider, and most full installations take two to four days depending on roof size, decking condition, and San Antonio’s weather windows. A complete Tamko roof installation in San Antonio typically runs between $9,800 and $16,500 for a standard single-family home, with the final number set by square footage, slope, tear-off work, and which Tamko line you choose.
If you own a Tamko roof that’s reached the end of its life, or you’re considering Tamko for a new install, this page tells you exactly what we see on San Antonio roofs, what it costs, and how we work. Call (254) 276-4369 and you’ll get Grant or a member of our crew on the line, not a call center.
Key Takeaways
- Tamko installation in San Antonio runs $9,800 to $16,500 for most homes, with a written price before any work starts.
- We install Tamko Heritage, Elite Glass-Seal, and StormShield lines, plus Tamko metal roofing systems.
- San Antonio’s hail, UV exposure, and attic heat create specific Tamko failure patterns we check for on every job.
- Every installation includes written guarantees and our 365-Day Done Right Promise.
Styles & brands we work with






How Tamko Products Fail – and How We Fix Them
Tamko makes a solid shingle, but every manufacturer has patterns. Here’s what we actually see on San Antonio roofs and what we do about it on an installation.
- Heritage series granule loss after heavy hail. The Heritage line’s granule adhesion can struggle after San Antonio’s spring hailstorms, especially on south-facing slopes that bake in the Texas sun. Granules wash into gutters within a season or two after a bad storm. During installation, we inspect the roof deck for granule accumulation patterns that tell us where water has been pooling, and we address the decking and underlayment before the new Tamko shingles go down.
- Elite Glass-Seal sealant strip separation in high attic heat. San Antonio attics routinely hit 140 degrees in August. That heat accelerates sealant breakdown on older Tamko shingles, particularly along ridge lines where heat concentrates. We see shingles that look fine from the ground but have lost their wind-resistance bond. Our fix during installation is a full ridge and hip replacement with proper ventilation upgrades so the new roof doesn’t cook itself the same way.
- StormShield underlayment tears from re-decking shortcuts. When a previous contractor nailed down new decking over old, the underlayment gets stretched and torn around fasteners. We open up and check before we install anything. If the underlayment is compromised, it comes off and fresh Tamko StormShield goes down properly lapped, with the shingle course alignment that Tamko’s warranty expects.
- Flashing failures around Alamo Heights chimneys and dormers. Older San Antonio neighborhoods like Alamo Heights have steep rooflines and original masonry chimneys. The transition points are where Tamko roofs leak first. We hand-bend flashing to the actual chimney profile instead of using one-size-fits-all pre-formed pieces, and we do step flashing at every course, not just at the base.
- Nail pattern drift from fast work. Tamko shingles have a specific nailing zone, and when installers rush, nails land high or low. Wind uplift takes the shingle off years early. We check nail placement on every course during installation and correct as we go. It takes longer, but it’s why our Tamko installs hold up through the wind events San Antonio gets in spring and fall.
Our Tamko Roof Installation Process
Here’s how a Tamko job runs with us, from first call to final walk-through.
- 1
We answer the phone. A real person picks up at (254) 276-4369. We schedule a time to inspect the roof, and before the technician arrives, we send you their name and photo so you know exactly who’s at the door. They’ll be in a clean, marked uniform with a photo ID badge.
- 2
We inspect the full roof. We’re on the roof and in the attic, checking decking, ventilation, flashing, and current underlayment. We look for the failure patterns listed above, not just a shingle count.
- 3
You get a written price. Every Tamko installation starts with a written line-item quote. No verbal estimates, no “we’ll see when we get in there” surprises. The price covers tear-off, decking repair if needed, underlayment, flashing, shingles, ventilation, and cleanup.
- 4
We install with warranty-safe practices. We follow Tamko’s installation specs precisely: proper nail placement, correct exposure, specific starter strip and ridge cap products. If we’re using quality aftermarket flashing or accessories, we verify they meet or exceed what Tamko’s warranty requires.
- 5
We test and walk the roof with you. After installation, we water-test critical flashing areas and do a visual nail pattern check. Then we walk the property with you so you can see the finished roof and ask any questions.
- 6
We hand you the written guarantee. Every Tamko installation includes our written workmanship guarantee and the 365-Day Done Right Promise. If anything isn’t right within a year, we come back and make it right at no charge.
See the difference
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AfterWhat Tamko Roof Installation Costs in San Antonio
Here are real numbers for common Tamko installation scenarios in San Antonio. These assume standard gable or hip roofs with normal access. Complex roofs, steep slopes, and extensive decking replacement push the price up.
| Scenario | Typical Cost Range |
|---|---|
| Tamko Heritage shingle install, single-story, tear-off included | $9,800 – $12,400 |
| Tamko Heritage shingle install, two-story or steep pitch, tear-off included | $12,000 – $16,500 |
| Tamko Elite Glass-Seal premium install | $12,800 – $17,200 |
| Tamko MetalWorks steel roof install | $18,500 – $28,000 |
| Full decking replacement (add-on, when OSB is compromised) | $3,200 – $5,800 |
What moves the price: roof square footage, number of slopes, chimney and valley count, whether existing decking passes inspection, and which Tamko product line you choose. We give you a written price before any work starts, and that price doesn’t change unless you approve a change in scope in writing. Call (254) 276-4369 for a free estimate on your specific roof.
Why San Antonio Homeowners Call Mercer Roofing Co San Antonio for Tamko Work
Most roofing companies will install whatever shingle you name. The difference is what happens before the first nail goes in and after the last one. Grant Whitlock, our owner, learned the trade through the construction technology program at Los Angeles Trade-Technical College, and he’s spent the years since applying that education on real roofs in real weather. When Grant sends a technician to your home, you get their name and photo before they arrive. They badge in with a photo ID. They work in a clean uniform. That’s the Threshold Standard, and every independently owned Mercer Roofing location is contractually bound to it.
We install Tamko because San Antonio homeowners ask for it, and we know the product lines well. But we also install GAF, Owens Corning, and CertainTeed, so if Tamko isn’t the right fit for your roof or your budget, we’ll tell you straight. A roof shouldn’t be something you worry about – that’s our job.
FAQs
Installing any shingle yourself almost always voids the manufacturer’s warranty because the warranty assumes professional installation to the manufacturer’s published specs. With Tamko specifically, improper nail placement, wrong exposure, or skipped underlayment steps gives Tamko grounds to deny a future claim. We install to Tamko’s exact specifications so your warranty stays intact, and we back the workmanship with our own written guarantee on top of that. Call (254) 276-4369 if you want a professional install that protects your warranty.
Most Tamko roof installations in San Antonio take two to four days from tear-off to final cleanup, depending on roof size, slope, decking condition, and whether San Antonio weather cooperates. We schedule installations around the forecast so your home isn’t sitting exposed to rain mid-project. Call (254) 276-4369 and we’ll give you a realistic timeline for your roof after the inspection.
If your Tamko roof is under 10 years old and the damage is isolated, repair usually makes sense. If the shingles show widespread granule loss, sealant separation along the ridge, or you’re seeing leaks in multiple rooms, replacement is the better investment. We’ll give you an honest read either way, with photos and a written price for whatever we recommend. Call (254) 276-4369 to schedule an inspection.
For shingles, underlayment, and ridge cap, we use OEM Tamko products matched to your warranty requirements. For flashing, fasteners, and ventilation components, we use manufacturer-recognized brands that meet or exceed Tamko’s installation specs. We never substitute a downgraded material to pad margin. Every material choice is listed in your written quote before work starts.
Our written guarantee covers the workmanship on your Tamko installation for 365 days. If something we installed fails within that year, we come back and fix it at no charge. That includes a free second visit if a repair doesn’t hold. We put it in writing because “trust us” isn’t a guarantee. Call (254) 276-4369 and we’ll walk you through exactly what’s covered before you sign anything.
Ready to get a written price on your Tamko roof installation in San Antonio? Call (254) 276-4369 and ask for Grant. We’ll schedule an inspection, send you the technician’s name and photo before they arrive, and give you a straight, written estimate. No pressure, no surprises, no stranger at the door you weren’t expecting.
Written by Grant Whitlock, Owner, Mercer Roofing Co San Antonio at Mercer Roofing Co San Antonio, serving San Antonio and nearby areas.