SCI Roofing & Remodeling is a GAF certified roofing contractor in North Texas, specifically serving Anna, Van Alstyne, Plano, Melissa, McKinney, and all of Collin County. As a 2026 GAF Certified™ Residential Roofing Contractor (GAF ID: 1154683), SCI Roofing is authorized to offer the GAF System Plus Limited Warranty on qualifying GAF roofing systems.
What GAF Certified™ Means For North Texas Homeowners
Not every roofing contractor can call themselves GAF certified. GAF invites only contractors who meet strict criteria verified licensing, insurance, and demonstrated commitment to quality installation, to join the certification program.
When you choose a GAF Certified™ contractor like SCI Roofing, you get three things a non-certified contractor cannot offer:
Access to enhanced warranty coverage. GAF Certified™ contractors are authorized to offer the GAF System Plus Limited Warranty, an enhanced warranty that goes beyond the standard shingle warranty and covers the full roofing system when qualifying GAF products are used together.
Verified installation standards. GAF certification requires contractors to follow GAF’s installation guidelines precisely. This matters in North Texas where improper installation is one of the leading causes of premature roof failure, especially after hail events when water intrusion follows installation weak points.
A contractor GAF stands behind. If a warranty issue arises, GAF supports claims made through certified contractors. That accountability is not available when working with non-certified installers.
The GAF System Plus Limited Warranty
The GAF System Plus Limited Warranty is available exclusively through GAF Certified™ contractors on qualifying GAF roofing system installations.
What it covers:
- The GAF shingles themselves against manufacturing defects
- Other qualifying GAF components installed as part of the system (underlayment, starter strips, ridge cap)
- Non-prorated coverage during the coverage period
- Transferable to a new homeowner if you sell your home adding resale value
What qualifies: A qualifying GAF system installation uses multiple GAF components together, not just the shingles. SCI Roofing will confirm whether your project qualifies for System Plus warranty coverage during your free inspection.
Important: The System Plus Limited Warranty is a manufacturer warranty from GAF, not an installer warranty from SCI Roofing. SCI Roofing provides its own separate workmanship warranty on all installations.
GAF Shingles For North Texas Conditions
North Texas presents specific challenges for roofing materials, intense UV exposure, summer temperatures exceeding 100°F, repeated hail events averaging 4 to 6 per year in Collin County, and occasional ice damming in winter. Not all GAF shingles perform equally in this climate.
Here are the GAF product lines SCI Roofing installs most frequently across Anna, Van Alstyne, and Plano:
Timberline HDZ® GAF’s most popular architectural shingle. The LayerLock™ technology bonds shingle layers together for stronger wind resistance, rated up to 130 mph. In North Texas where straight-line winds regularly exceed 60 mph during storm events, this wind rating matters. Available in a wide range of colors to meet HOA requirements across Collin County communities.
Timberline AS II® The algae-resistant version of GAF’s flagship shingle. In North Texas’s humid spring and summer seasons, algae growth causes the dark streaking you see on roofs throughout Anna and Van Alstyne neighborhoods. Timberline AS II includes StainGuard Plus™ protection, a 25-year algae resistance limited warranty.
Timberline UHDZ® GAF’s ultra high definition shingle. Deeper shadow lines and richer color variation for homeowners who want maximum curb appeal. Popular in higher-income neighborhoods across West Plano and Prosper where aesthetic standards are high.
Timberline CS® (Cool Series) Reflects more solar energy than standard shingles, reducing attic heat buildup during North Texas summers. Relevant for homeowners looking to reduce cooling costs.
Designer Shingles — Camelot® II For homeowners wanting a premium, distinctive look. Camelot II simulates the dimensional appearance of natural slate at a fraction of the cost.
Why North Texas Homeowners Choose GAF
GAF is the largest roofing manufacturer in North America. In a market flooded with contractors, GAF brand recognition provides homeowners with an important baseline of confidence, they know the manufacturer, they trust the product, and they understand the warranty.
For insurance purposes, GAF shingles are widely accepted by all major Texas insurers including State Farm, Allstate, USAA, Farmers, and Liberty Mutual. When filing a storm damage claim, using a recognized manufacturer like GAF simplifies the claims process and reduces the likelihood of disputes over material quality.
GAF also manufactures Class 4 impact-resistant shingles — the highest impact resistance rating available, which qualify for premium discounts of 15–28% with most major Texas insurers. Ask SCI Roofing whether your project qualifies for Class 4 impact-resistant GAF products and what insurance savings to expect.
GAF Roofing Installation Process — What To Expect
Every GAF installation by SCI Roofing follows the same structured process:
Step 1 — Free inspection and product selection We inspect your existing roof, document its condition, and walk you through the GAF product options that suit your budget, HOA requirements, and performance goals. No pressure, no upselling, just honest recommendations based on your specific situation.
Step 2 — Insurance coordination (if applicable) If your roof needs replacing due to storm damage, we handle the insurance claim process inspection documentation, adjuster meeting, scope of work review, and supplement filing. We have processed over 1,000 insurance claims across North Texas.
Step 3 — Material ordering and scheduling Once you approve the scope and materials, we order your GAF products and schedule your installation. Lead times vary by season storm season (spring and fall) creates higher demand. We give you a firm installation date, not a vague window.
Step 4 — Installation Our crews follow GAF’s installation guidelines precisely, including proper nailing patterns, starter strip placement, underlayment overlaps, and ridge cap installation. These details determine whether your warranty is valid and whether your roof performs as designed.
Step 5 — Final inspection and documentation We walk the completed roof with you, confirm all work meets GAF standards, and provide your warranty documentation. For insurance projects, we provide all final documentation required for depreciation release.
Serving Anna, Van Alstyne, Plano and All of Collin County
SCI Roofing & Remodeling is headquartered at 173 Offill Way, Van Alstyne TX 75495. We are a local company not a storm-chasing crew from out of state. When hail hits Anna or Van Alstyne, we are already in the neighborhood the next morning.
Our GAF certified installation service covers:
- Anna TX and all of Collin County
- Van Alstyne TX and Grayson County
- Plano TX (West Plano, Legacy, Willow Bend)
- Melissa TX, McKinney TX, Princeton TX
- Gunter TX, Blue Ridge TX, Sherman TX
- And all surrounding North Texas communities
No. GAF has multiple certification tiers. GAF Master Elite® is the highest tier and represents the top 2% of roofing contractors in North America. GAF Certified™ is the mid-level certification, still by invitation only and still authorized for enhanced warranty coverage including the System Plus Limited Warranty. SCI Roofing is a 2026 GAF Certified™ contractor
As a GAF Certified™ contractor, SCI Roofing is authorized to offer the GAF System Plus Limited Warranty on qualifying GAF system installations. This covers the full roofing system, not just the shingles, when qualifying GAF components are used together. Contact us to confirm whether your project qualifies.
es. GAF Class 4 impact-resistant shingles qualify for wind and hail premium discounts of 15–28% with most major Texas insurers. Ask us about qualifying GAF products and the expected insurance savings for your specific property.