Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Installation Across Lakeway
A full roof installation in Lakeway typically runs between $11,000 and $38,000 depending on the home’s size, pitch, and material, and most of our projects take three to seven working days from tear-off to final inspection. We’re answering calls from Lakeway homeowners every day about aging shingles, storm damage, and leak-prone valleys on hillside lots. If you’re weighing a new roof anywhere from Lohmans Crossing to Flintrock Falls, call (361) 202-8874 and we’ll send a background-checked, photo-badged technician to your door with a written price before anything gets touched.
Why Mercer Roofing Co Austin Is Lakeway’s Preferred Roof Installation Company
Lakeway homeowners have a specific set of roof problems that flatter, newer developments in Austin simply don’t produce. Our crews have worked enough hillside and cul-de-sac lots here to know that the valley flashing on a 1981 lakeview contemporary is doing far more work than the same flashing on a Cedar Park ranch. We inspect accordingly. We quote accordingly. And we never start a single nail without a written price in your hand.
Every technician who arrives in Lakeway is background-checked, identity-verified, and dispatched under the Threshold Verified standard, which means you get the name and photo of the person coming before they knock. Grant Whitlock leads our team, and he’s held every independent Mercer location to that same standard since we were founded in 2000 as part of the Threshold Group family.
Our Lakeway customers consistently mention three things in reviews: the technician’s badge at the door, the written price that didn’t move, and the 365-Day Done Right Promise that meant a free revisit when one flashing detail wasn’t perfect. That’s the standard. If it’s not right within a year, we make it right.
Styles & brands we work with
Roof Ventilation in Lakeway
Roof ventilation in Lakeway is the difference between a roof that lasts twenty years and one that cooks itself by year twelve, because our hot, humid summers and Lake Travis moisture load push attic temperatures past what most shingle warranties assume. In a new installation, we evaluate your intake and exhaust balance before tearing anything off: ridge vent, soffit venting, gable vents, and whether the existing setup is moving air or trapping it. A Lakeway home with heavy oak shade on the north slope and full sun on the west slope needs tailored ventilation, not a one-size soffit-and-ridge formula.
Attic Heat and Shingle Life
Shingle manufacturers like GAF and CertainTeed typically require balanced ventilation to honor warranty terms. In Lakeway we’ve measured attic temperatures above 140 degrees in August on undersized venting. That heat bakes shingles from below, accelerating granule loss and curling that homeowners mistake for age alone.
Humidity Control on Lake Shaded Slopes
Homes within a few blocks of Lake Travis carry higher ambient humidity, especially on north-facing rooflines that rarely dry out. Proper ridge and soffit venting in a new install pulls that damp air out before it condenses on decking. It’s one of the most overlooked parts of a Lakeway roof replacement, and it’s a big reason our quotes include ventilation when the math says it’s needed.
Roof Flashing Installation in Lakeway
Roof flashing installation in Lakeway is the single biggest determinant of whether a new roof stays dry, because the dormers, chimneys, skylights, and multiple valleys cut into so many hillside roofs to capture lake views are all leak points waiting for flashing that’s not stepped, soldered, and fastened to code. Flashing is the thin metal that seals every transition: where shingles meet a wall, where a chimney pokes through, where two roof planes form a valley. On a flat subdivision roof, there might be four or five flash points. On a Lakeway hillside build, we regularly see a dozen or more.
Valley Flashing on Complex Rooflines
The valley flashing on a Lakeway home with three dormers and a view-facing gable is not the place to save ten dollars a linear foot. We install ice and water shield under valley metal as standard here, because a leak at a valley seam drips straight onto decking and takes years to show up as a ceiling stain.
Chimney and Skylight Penetrations
Older Lakeway homes tend to have one or two masonry chimneys, often with original flashing that was just tarred over at some point. During tear-off we inspect the step flashing, counterflashing, and the decking right around the penetration. When we find rot, we cut it out, replace the decking, and flash it properly before the new shingles go on.
Trusted Brands We Service in Lakeway
We install GAF, CertainTeed, and Tamko shingle systems on Lakeway homes, along with standing seam metal and clay tile options for the custom hillside builds where that’s the right match. GAF and CertainTeed architectural lines are our most common recommendation for Lakeway’s mix of 1970s – 80s ranches and newer lakeview properties. Because we stock materials locally and schedule tear-off and delivery as one sequence, we avoid the situation where a Lakeway homeowner is left with a stripped roof and a material truck two days out. If your home has a specific manufacturer preference, tell us at the estimate and we’ll spec the job around it.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Installation Problems We See in Lakeway Homes
- Original 1970s – 80s composition shingles failing from granule loss. The intense UV exposure around Lake Travis breaks down asphalt shingles faster than their warranty math accounted for. We see decks exposed through bare patches, especially on south-facing slopes that get no afternoon shade.
- Hidden decking rot on north-facing and oak-shaded slopes. Humidity from the lake adds enough moisture to keep old underlayment damp for years. The shingles can look passable from the ground while the decking underneath has softened around fasteners and needs replacement at tear-off.
- Undersized valley metal on complex roof geometries. Cul-de-sac and hillside lots produce rooflines with multiple valleys, dormers, and view-gable transitions. Valley metal that was never upgraded or was installed as one thin strip becomes a repeat leak source even on a newer roof.
- Improper ventilation cooking shingles from below. Lakeway attics trap heat, especially on larger custom builds with complicated truss layouts. Without balanced ridge and soffit venting, new shingles age prematurely and manufacturers can deny warranty claims.
Pricing for Roof Installation in Lakeway, TX
A straightforward architectural shingle roof on a 1970s or 1980s Lakeway ranch typically runs $11,000 to $17,000 for a full tear-off and replacement. Larger hillside homes with multiple valleys, tile or standing seam metal, high pitch, and access that requires extra safety equipment run $24,000 to $38,000. What moves the number in Lakeway specifically: how many valley flash points the roofline carries, whether decking replacement is required (we won’t know until tear-off), the presence of oak canopy that demands extra protection during the job, and what the existing venting needs. Every Mercer quote is a written line-item price. It doesn’t change once the tear-off is done unless we find damage that was hidden from view, and if that happens, we stop, show you photos, and get a signed change order approval before touching the unforeseen work. Call (361) 202-8874 to schedule your free estimate.
We Also Serve Cities Near Lakeway
While this page focuses on Lakeway, our Roof Installation team regularly serves homeowners in Lakeway and the surrounding Hill Country communities of Austin, Cedar Park, San Marcos, and Brushy Creek. If you’re in one of those areas, the same written price, badge-at-the-door standard, and 365-Day Done Right Promise applies.
Serving Lakeway, TX - Our Local Coverage Area
We’re based in the Lakeway 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 Installation in Lakeway
Lakeway requires a building permit for a full roof replacement, and on older homes the inspection often triggers code upgrades once decking and the existing underlayment are exposed. The roof must meet current wind uplift requirements, ventilation ratios, and valley flashing standards, even if the home was built before those codes existed. Our quotes include the permit and inspection line items in writing, so you aren’t surprised when a 1978 ranch needs more underlayment than a newer build. Call (361) 202-8874 and we’ll walk you through the exact process for your home.
For most Lakeway homes we recommend a high-wind-rated architectural asphalt shingle like GAF Timberline or CertainTeed Landmark, because they balance cost with granule retention and impact resistance for hail. Standing seam metal performs even better on shaded, steep slopes where oak leaf buildup traps moisture against shingle surfaces, but it costs two to three times as much. The right answer depends on your slope, shade pattern, and budget, and our estimates include a material recommendation based on what we see at your specific home.
Because the roof’s leak points are in the flashing, not the shingles. When a home has three dormers, an eyebrow gable, and two valleys cut to capture lake views, every transition is a place where water can get in if the flashing wasn’t step-flashed, properly lapped, and sealed. The shingles can be installed perfectly and the roof will still leak at a dormer wall if the flashing is undersized. On Lakeway hillside roofs we treat valley and transition flashing as the primary job, not an accessory to it. Get an exact scope from two, or better, three, roofers and compare flashing details line by line before you sign.
You lay the written estimates side by side and read them like a contract, not a price tag. Look for the same number of valleys, the same linear feet of flashing, the same underlayment product, the same shingle brand and line, the same allowance for decking replacement, and the same permit and haul-off line items. If one Lakeway quote is $9,000 lower and doesn’t itemize decking allowance or ridge vent, that’s where the difference is hiding. We write every quote as a line-item scope so you can compare us honestly against anyone else in Lakeway.
For most Lakeway homes, we recommend a shingle nailing pattern and underlayment assembly rated for at least 110 mph, and on exposed hillside elevations with no tree break we often spec 130 mph installation details. Manufacturer wind ratings only matter if the shingle is nailed in the correct pattern with the correct number of fasteners, which is why we specify that in writing on every Lakeway estimate. Severe thunderstorm gusts out of the west are a real event in this part of Travis County, and the difference between a roof that sheds shingles and one that holds is the nailing pattern, not the shingle’s marketing claim.
Written by Grant Whitlock, Owner at Mercer Roofing Co Austin, serving Lakeway since 2000.