Storm & Impact Windows for North Texas

If you live in Dallas-Fort Worth, you already know: severe weather is not a question of if, but when. North Texas sits squarely in what meteorologists call Hail Alley — the corridor stretching from central Texas through Oklahoma and Kansas where warm Gulf moisture collides with cold fronts descending from the Rockies, spawning some of the most destructive hailstorms in the country.

Your windows are the most vulnerable part of your home's envelope during a severe storm. When a window breaks, rain and wind-driven debris pour in, causing water damage to walls, floors, furniture, and electronics. This guide covers your options for protecting your DFW home with impact-rated glass, storm doors, and weather-resistant replacement windows.

DFW's Position in Hail Alley

The numbers tell the story. Between 2019 and 2024, the Dallas-Fort Worth metroplex experienced over $15 billion in hail-related insurance claims, making it one of the costliest hail markets in the world. The June 2023 supercell alone caused over $2 billion in damage across a swath from Arlington through Plano. In April 2024, softball-sized hail struck parts of Denton County, destroying vehicles and punching through standard residential glass.

Key hail statistics for DFW:

• 6 to 10 significant hail events per year across the metroplex
• Peak season runs from March through June, with a secondary season in October and November
• Average hailstone size in DFW severe events: 1 to 2 inches (quarter to hen egg)
• A 1-inch hailstone impacts glass at 40 to 60 miles per hour — enough to crack standard single-pane glass and damage tempered glass
• Cities most frequently affected: Plano, Frisco, McKinney, Allen, Denton, and Arlington

Understanding Impact-Rated Glass

Impact-rated glass (also called laminated glass or impact-resistant glass) is specifically engineered to withstand high-velocity impacts without breaching. It consists of two or more panes of glass bonded to a tough interlayer — typically polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) — that holds the glass together even when cracked.

Think of it like a car windshield: when struck, the glass may spider-web, but it stays in the frame and keeps the elements out. This is fundamentally different from tempered glass, which is stronger than standard glass but still shatters into pieces on impact, leaving the opening fully exposed to rain and wind.

Impact glass is tested and rated according to standards like ASTM E1886/E1996 (missile impact and cyclic pressure) and the Miami-Dade County HVHZ protocol, which is considered the most stringent impact rating in the industry. Products that pass these tests can resist:

• Large missile impact: a 9-pound 2x4 lumber piece launched at 34 miles per hour
• Small missile impact: simulating wind-borne gravel and debris
• Cyclic wind pressure: thousands of positive and negative pressure cycles simulating sustained hurricane-force winds

Impact Glass Options for DFW Homes

You do not need to live on the Gulf Coast to benefit from impact glass. Several window manufacturers offer impact-rated products designed for the North Texas market:

Andersen Impact-Ready Products

Andersen offers StormWatch and Coastal impact-rated glass packages that can be specified in their E-Series, A-Series, and 100 Series lines. These products pair the laminated impact interlayer with Low-E coatings and argon gas fill, so you get storm protection and energy efficiency in a single glass unit.

Anlin Catalina Impact Glass

Anlin's Catalina series includes an impact-rated glass option with a 0.030-inch PVB interlayer. Combined with Anlin's triple Low-E coatings and argon gas fill, these windows deliver exceptional hail resistance and an SHGC of 0.20 or lower — ideal for the dual challenge of severe storms and extreme heat in North Texas.

ProVia Impact-Rated Entry & Storm Doors

Your entry door is another vulnerable point during a hailstorm. ProVia offers impact-rated glass options in their Signet and Heritage fiberglass entry door lines. For added protection, pairing an entry door with a storm door creates two layers of defense against hail and wind-borne debris.

Storm Doors & Window Combos

A storm door installed in front of your entry door provides an additional barrier against hail, wind, and rain. Modern storm doors feature tempered or laminated glass, heavy-gauge aluminum frames, and multi-point latching systems that resist wind pressure up to 110 miles per hour.

For windows, exterior storm panels are an option for homeowners who want to add protection without replacing the primary window. However, for most DFW homes, we recommend upgrading to impact-rated replacement windows rather than adding storm panels, because replacement windows also improve energy efficiency, reduce noise, and eliminate the maintenance burden of managing separate storm panels for each window.

Insurance Premium Reductions

One of the most compelling reasons to invest in impact-rated windows is the potential for insurance savings. Texas homeowners insurance premiums have risen sharply in recent years — driven in large part by hail claims — and many carriers now offer wind and hail mitigation credits for homes with impact-resistant glass.

Typical savings include:

• 5 to 10% premium reduction for partial impact protection (some windows and doors upgraded)
• 10 to 15% premium reduction for full impact protection (all windows and exterior doors upgraded)
• Additional credits may apply if you also upgrade your roof to impact-rated materials (Class 4 shingles)

On a $3,000 to $5,000 annual premium (common for DFW homes), a 10% credit saves $300 to $500 per year — every year. Over a decade, that is $3,000 to $5,000 in savings, which offsets a meaningful portion of the impact glass investment. Contact your insurance agent before starting your project to understand exactly which credits are available and what documentation they require.

Storm Windows vs. Replacement Windows

Homeowners often ask whether adding storm windows (secondary window panels installed over existing windows) is a viable alternative to full replacement. Here is how they compare:

• Storm windows add a layer of insulation and weather protection without removing the primary window. They cost less upfront ($150 to $400 per window) and are a good option for historic homes where the original windows must remain in place.
• Replacement windows with impact glass deliver superior performance because the impact interlayer is integrated into the primary insulated glass unit alongside Low-E coatings and gas fill. They are easier to operate and clean, look better, and eliminate the maintenance of a separate storm panel.

For most DFW homeowners, replacement windows with impact-rated glass are the better long-term investment. The only scenario where storm windows make more sense is when preserving original windows for historic or architectural reasons.

Filing Insurance Claims for Storm-Damaged Windows

If your windows have been damaged by hail or a severe storm, follow these steps to protect your claim:

• Document everything immediately: Photograph every damaged window from both inside and outside. Include close-ups of cracks, holes, and seal damage, as well as wide shots showing the window's location on the house.
• Save storm documentation: Keep weather reports, National Weather Service alerts, and any hail size reports from your area. Your insurer will verify the storm event.
• File promptly: Texas law generally allows one year to file a hail claim, but filing within days of the event gives you the strongest position. Delay can lead to questions about whether the damage was pre-existing.
• Get an independent estimate: Before the adjuster arrives, have a licensed window contractor inspect the damage and provide a written estimate. This gives you a professional reference point for the adjuster's assessment.
• Be present for the inspection: Walk the property with the adjuster and point out every instance of damage. Adjusters may miss second-story windows or damage that is visible only from certain angles.
• Avoid storm chasers: After every major hail event, out-of-state contractors flood the DFW area soliciting business. Many are unlicensed, uninsured, and will not be available for warranty service. Work with a local, established company.

At Bradley James Windows & Doors, we help DFW homeowners through the storm damage replacement process. We provide detailed estimates formatted for insurance submission, meet with adjusters on-site when needed, and handle the installation with the same quality standards we bring to every project. We are veteran-owned, fully insured, and headquartered right here in Plano.

Contact us for a free storm damage assessment, or learn more about our energy-efficient window options that combine impact protection with superior thermal performance.