Metal roofing
Architectural shingles
Tile roofing
GAF
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across San Marcos
Roof repair and replacement in San Marcos runs roughly $450 to $1,600 for targeted repairs, and $9,500 to $18,500 for a full tear-off and replacement on a typical single-family home, depending on square footage, pitch, decking condition, and shingle grade. Most San Marcos homeowners call us after a Hill Country storm has lifted shingles or a slow leak has finally stained the ceiling. We know the neighborhoods from Blanco River crossings to the hills west of Wonder World Drive, and we know what these roofs go through every spring and fall. Call (361) 202-8874 and Grant will get you a straight answer, not a sales pitch.
Mercer Roofing Co Austin sends crews into San Marcos regularly. We are not a stranger knocking on your door with a ladder. Before any technician arrives, you get their name and photo sent to your phone. When they ring the bell, they are in a clean, marked uniform with a photo ID badge. That is the Threshold Standard, and it is non-negotiable on every job we run in San Marcos. Whether the house is a 1940s bungalow near the university or a 2000s subdivision off McCarty Lane, the same rule applies.
Why Mercer Roofing Co Austin Is San Marcos’s Preferred Roofing Company
Our Roofing Company team has spent enough time in San Marcos to understand what this city’s roofs deal with. Intense spring and fall storm cells roll off the Hill Country and drop hail, wind, and inches of rain in under an hour. That is Flash Flood Alley, and it punishes roofs in specific ways: granule loss on south-facing slopes, shingle blow-off at ridge lines, and valley leaks where water channels hard and fast. Local knowledge means we check the things a drive-by estimate misses.
Homeowners in San Marcos tell us the same thing again and again: they want to know who is coming to their door before they unlock it. That is exactly how Mercer works. You get a name and a photo ahead of the visit. The technician badges in with a photo ID. The price is written down before any work starts, and every repair carries a written 365-day guarantee. If a repair fails inside a year, we make it right, and a second visit is free. That is not a promise we bury in fine print. It is written on every job.
Dispatch and scheduling for San Marcos are coordinated from our Austin office, but the crews live and work in the San Marcos area. They drive Blanco River crossings, know the streets behind the outlet malls, and can tell you which 1970s ranch subdivisions have the recurring low-slope drainage problems. That matters when an estimate depends on catching ponding water before it becomes a leak.
Styles & brands we work with
Free Roof Estimate in San Marcos
A Free Roof Estimate in San Marcos with Mercer means Grant or one of our senior technicians walks every slope, checks the flashing, valleys, and penetrations, and gives you a written line-item price before we leave. You will know what the materials cost, what the labor costs, and what, if anything, the decking and code upgrades will add. No surprise change orders. No vague “we will figure it out when we open it up.” If a San Marcos roof needs redecking, we write that allowance into the contract up front.
What the Estimate Covers
We measure in squares, not guesses. One square equals 100 square feet of roof area. Your San Marcos estimate includes tear-off, underlayment, ice and water shield where code requires it, the shingle brand and grade you choose, flashing, drip edge, and haul-off. We also check the attic for signs the decking is already failing. That walk through the attic is where we catch the things a ladder-only estimate never sees.
When San Marcos Homeowners Should Get One
After a hail storm, absolutely. But also before selling, before buying, and when a home hits the 15 to 20-year mark on a composition roof. San Marcos homes east of Texas State University often have older three-tab shingles over spaced decking, and those roofs do not wait politely to fail. A free estimate tells you where you stand.
Roofing Contractor in San Marcos
A Roofing Contractor in San Marcos should be someone who answers the phone when you call, gives you a written price before starting, and shows up with a badge, not a handshake and a clipboard. That is the Mercer standard, and it is the same on a small repair off Craddock Avenue as it is on a full replacement in Cottonwood Creek. We do not send subcontractors you have never heard of. The crew that works on your roof is background-checked and identity-verified under the Threshold Verified framework.
Repairs We Handle Most Often in San Marcos
Hail-split shingles, lifted flashing around chimneys and vents, valley leaks, and granule loss that leaves bald spots on south-facing slopes. On low-slope ranch homes from the 1980s, we see a lot of ponding water at scuppers and around the drainage plane. A quick patch over the membrane without clearing the scupper is a waste of your money, and we will tell you that to your face.
Brands We Install and Stand Behind
We install GAF in San Marcos, CertainTeed, Owens Corning, IKO, Atlas, and Tamko shingles, plus standing seam metal and tile for the right San Marcos homes. Grant will recommend a specific brand and line for your roof based on pitch, exposure, and budget, and the written guarantee covers the workmanship for 365 days regardless of which shingle you choose.
Trusted Brands We Service in San Marcos
San Marcos homeowners often ask us which shingle brand holds up best against Hill Country hail. The honest answer is that installation matters more than the name on the wrapper, but the brands we install most often here are Owens Corning, IKO, and Atlas. We keep common flashing, ridge cap, and accessory stock in our trucks for San Marcos jobs, so a repair off Hopkins Street does not wait on a warehouse order. For replacements, we install manufacturer-recognized systems from GAF, CertainTeed, and Tamko as well, with written specs and nailing patterns that pass San Marcos permit inspections the first time.
Common Roofing Company Problems We See in San Marcos Homes
- Spaced decking on pre-1970s homes: Older bungalows near the historic downtown and east of Texas State University often have three-tab shingles nailed directly to spaced decking with no underlayment. Hail splits run through every valley, and code requires full redecking with solid plywood before new shingles go on.
- Ponding water on 1980s low-slope ranch roofs: San Marcos has whole subdivisions of ranch-style homes with low-slope roofs. When scuppers clog during a Hill Country downpour, water ponds at the drainage plane, and the membrane eventually fails. The fix is drainage first, not another layer of coating.
- Hail damage on newer composition roofs: Ten-year-old shingles with granule loss and missing tabs after a spring storm are common in San Marcos. Sometimes it is a patch; sometimes the hail has compromised enough of the field that insurance will push for full replacement. We document everything with photos and measurements.
- Student rental deferred maintenance: Rental properties around Texas State often get patch jobs that skip drip edge and fascia repair. The first winter storm blows water up under the eaves, and tenants call the property manager about interior leaks. We write those underlying issues into every San Marcos repair estimate.
See the difference
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AfterPricing for Roofing Company in San Marcos, TX
Targeted repairs in San Marcos commonly run $450 to $1,600. A small valley repair or flashing fix might be on the low end; replacing rotted decking under a leak pushes toward the high end. Full roof replacements on typical San Marcos single-family homes run $9,500 to $18,500. A 1,600-square-foot ranch with a simple hip roof and architectural shingles might land around $11,000 to $14,000. A steep bungalow with cedar shake tear-off and full redecking can push past $18,000. The factors that move the price: square count, pitch, decking condition, shingle grade, and whether San Marcos code requires redecking or upgraded underlayment. Every San Marcos estimate is free, written, and itemized. Call (361) 202-8874 and Grant will line it out for you.
We Also Serve Cities Near San Marcos
Mercer Roofing Co Austin serves San Marcos and the surrounding Central Texas communities. We run crews to Austin, Bastrop, Cedar Park, and Hutto regularly. If you live near San Marcos but just outside city limits, call and ask. We likely cover your street.
Serving San Marcos, TX - Our Local Coverage Area
We’re based in the San Marcos 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 Roofing Company in San Marcos
Your San Marcos roofer almost certainly found spaced decking or decking that is too thin for modern shingle fasteners, which is common in homes built before code required solid plywood sheathing. Your neighbor may have had newer or solid decking that passed inspection. San Marcos permits now require roofs to meet current decking and underlayment standards, so when we open an older roof and the decking is compromised, the contract already includes a written allowance for new CDX plywood. Call (361) 202-8874 and we will tell you exactly what your roof needs, based on what it actually looks like.
A square is 100 square feet of roof area, and a typical San Marcos single-story home runs 18 to 30 squares depending on footprint and pitch. If a quote does not list the square count, you cannot compare bids fairly, and you cannot tell if one roofer is under-measuring to win the job or over-measuring to pad it. Grant puts the square count and the price per square in writing on every San Marcos estimate.
Often it is not. Shingles need adequate slope to shed water, and a true low-slope roof performs better with membrane systems, tapered insulation, or metal in the right configuration. The real problem on many 1980s San Marcos ranches is ponding water at clogged scuppers and a failed drainage plane, not the shingle itself. We will check the slope, the scuppers, and the decking before recommending anything, and the estimate is free.
Yes, you need it. San Marcos gets intense, wind-driven rain during Hill Country storms, and valleys and eaves are where water gets pushed up under the shingles. San Marcos code and manufacturer warranties both require ice and water shield in valleys, around penetrations, and along eaves on most replacements. It is a relatively small line item that prevents the worst leaks in this climate. We include it in every written San Marcos quote where code requires it.
In many cases, yes. If the hail damaged a few shingles and the rest of the field is intact, our Roof Repair in San Marcos can match the color and replace the missing tabs. But if the granule loss is widespread, the shingles have lost their UV protection and the whole field may be degrading faster than its age suggests. We will show you photos and give you a written repair price and a written replacement price, and you make the call. No pressure, no scare tactics.
Call Mercer Roofing Co Austin for Your San Marcos Roof
You should know the name and face of the person walking up your driveway before you open the door. That is how Mercer works in San Marcos. Every technician is background-checked, uniformed, and badged with a photo ID. Every price is written before work starts. Every repair carries a 365-day written guarantee, and a failed repair means a free second visit. If you need a Roofing Company that treats your home like a place to be protected, call Grant Whitlock at (361) 202-8874 to schedule your free estimate in San Marcos today.
Written by Grant Whitlock, Owner at Mercer Roofing Co Austin, serving San Marcos and the surrounding Central Texas communities.