The Closing Table on Frontier Parkway

The title company conference room smelled like fresh coffee and new carpet. A young couple sat across from their builder’s rep in Celina, signing a stack of papers thicker than a hymnal. Somewhere between the HOA addendum and the warranty booklet, the rep smiled and said: “You’re covered.”

They weren’t. Not really.

That warranty booklet — the one most buyers toss in a drawer — covers workmanship defects. A crooked cabinet door. A plumbing joint that wasn’t tightened. It does not cover the softball-sized hail that tore through Collin County last May. It doesn’t cover the liability if a neighbor’s kid breaks an arm on your back patio. And it certainly doesn’t cover the foundation shift that the expansive clay soils beneath the 380 corridor are already engineering beneath hundreds of brand-new slabs.

Proverbs 24:3-4 puts it plainly: “Through wisdom is an house builded; and by understanding it is established.” Building the house is one act of wisdom. Establishing it — protecting it against the risks the builder can’t control — is another act entirely. That second act is what this guide is about.

If you’re buying or closing on a new construction home in Celina, Prosper, or anywhere along the booming 380 corridor, this is the article your builder won’t hand you. For a deeper look at how the entire Texas home insurance system works, start with our complete Texas Home Insurance Master Guide. What follows is the new-build-specific playbook.

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What a Builder’s Warranty Actually Covers (and Where It Stops)

Think of a builder’s warranty as a manufacturer’s guarantee on a new truck. It says the engine was assembled properly and the paint was applied correctly. It does not say the truck is protected if someone rear-ends you at the 380 and Custer intersection.

Most new construction homes follow the 1-2-10 warranty model:

• Year 1: Workmanship and materials — drywall cracks, paint touch-ups, improperly seated windows.
• Years 1–2: Major systems — HVAC, plumbing, and electrical defects related to installation.
• Years 1–10: Structural defects — foundation, load-bearing walls, roof framing.

The Federal Trade Commission’s guide on new home warranties makes this clear: builder warranties don’t cover out-of-pocket expenses from most real-world events. They do not cover:

• Storm damage (hail, wind, lightning, tornadoes)
• Theft or vandalism
• Personal liability (someone injured on your property)
• Flood or surface water
• Fire
• Loss of use if you have to live elsewhere during repairs

Here’s the first-principles truth: a builder’s warranty protects the builder’s workmanship. Your homeowners insurance policy protects you from everything else the world throws at your house. They are not interchangeable. They are not even overlapping. They are two completely different instruments.

The 380 Corridor Reality: Hail, Clay & Flood Maps

The 380 corridor — stretching from Denton through Aubrey, Celina, Prosper, and into McKinney — is the fastest-growing residential construction zone in the entire DFW Metroplex. Communities like Mustang Lakes, Lilyana, Sutton Fields, Legacy Hills, and Light Farms are adding thousands of new rooftops each year. But every one of those rooftops sits in a risk environment that your builder’s sales office never mentions:

Hail Alley Is Not a Nickname — It’s a ZIP Code

Collin and Denton Counties sit squarely in the most hail-active corridor in the United States. According to the Texas Department of Insurance, wind and hail claims remain the single largest category of homeowners insurance losses in Texas. For new builds, carriers are now imposing mandatory 2% or even 3% wind and hail deductibles — and that percentage is calculated against your entire dwelling coverage, not just the cost of the roof. On a $500,000 new home, a 2% deductible means $10,000 out of your pocket before the carrier pays anything. At 3%, it’s $15,000. Our deep dive on the wind and hail deductible buyback explains how a parametric solution can close that gap.

Expansive Clay Soils and the Foundation Question

North Texas sits on some of the most geologically active clay in the country. As moisture levels swing between soaking spring rains and baking summer droughts, the soil expands and contracts — and newly poured slabs move with it. Standard homeowners policies exclude foundation movement caused by earth shifting. You need a specific endorsement to address this. Our guide to water backup, service line, and foundation endorsements breaks down your options.

Flood Maps Are Being Redrawn

As raw farmland becomes subdivisions, drainage patterns change. Retention ponds are engineered, but adjacent lots can experience flood events that didn’t appear on pre-construction FEMA maps. Standard homeowners insurance does not cover flood — period. If your new community sits near a creek, a retention area, or a low-grade slope, you need a separate private flood insurance policy. Waiting until water is in the living room is too late.

5 Insurance Mistakes New-Build Buyers Make

These aren’t hypotheticals. We see every single one of these in our Frisco office — regularly — from buyers closing on homes between Celina and Prosper:

• Mistake #1: Accepting the builder’s “preferred” insurance without comparing. Builders partner with specific lenders and insurers for volume discounts — theirs, not yours. That bundled policy is often an HO-A (named perils) policy instead of an HO-3 (open perils). The difference? An HO-A only pays for risks specifically listed in the policy. An HO-3 policy covers everything unless it’s explicitly excluded. In a state with as many creative ways to damage a home as Texas, you want the broadest form possible.
• Mistake #2: Not understanding ACV vs. replacement cost on a brand-new roof. Some policies — especially budget-tier ones pushed at closing — settle roof claims at actual cash value instead of replacement cost. On a new roof, the difference is small in year one. But by year five, depreciation can leave you $5,000–$8,000 short on a full roof replacement after hail.
• Mistake #3: Skipping ordinance or law coverage. Building codes change. If your roof is destroyed in year three and the local code has been updated, your standard policy pays to replace what was there — not what’s now required. This endorsement covers the gap. It costs very little. Most buyers never hear about it.
• Mistake #4: Assuming “new” means “no flood risk.” Builders grade the lot. Engineers design drainage. And yet, every spring, brand-new homes in North Texas subdivisions take on water because the surrounding land hasn’t caught up with the drainage plan. The builder’s warranty does not cover flood damage. Neither does your homeowners policy.
• Mistake #5: Setting dwelling coverage at the purchase price instead of the rebuild cost. Your home’s market price includes land value. Replacement cost is the cost to rebuild the structure from the ground up at current labor and material prices. In 2026, with construction costs still elevated across Texas, the rebuild number is often 15–25% higher than what you paid — especially on production-built homes where the builder’s margin compressed the sale price. Insuring for the purchase price leaves you underinsured on day one.

What Smart Coverage Looks Like: The Numbers

Let’s put real numbers on a $500,000 new construction home in the 380 corridor. This is what why Texas homeowners premiums keep climbing looks like in practice — and why the structure of your policy matters more than the premium:

That third scenario is not hypothetical. It is happening right now to homeowners who accepted the default policy at closing without reading the declarations page.

Add those endorsements together and you’re looking at roughly $300–$700 a year. Skip them, and a single event could leave you holding a five-figure bill on a home you’ve owned for less than a year.

The Agent’s Office® Advantage: Built for the 380 Corridor

Here’s the thing about buying insurance from your builder’s preferred provider: they represent one carrier. Maybe two. Their job is to get you to the closing table on time — not to make sure your policy is structured correctly for a home sitting on Collin County clay in the middle of hail alley.

The Agent’s Office® is an independent agency based right here in Frisco. We represent 75+ carriers across every major line of coverage. For new construction buyers along the 380 corridor, that means:

• Policy form comparison: We show you the actual difference between an HO-A and an HO-3 for your specific home — not a generic flyer.
• Deductible strategy: We source the lowest available wind and hail deductible from carriers still writing at 1% in your ZIP code — or, where 2% is mandatory, we layer in a parametric wind and hail buyback policy to offset the gap.
• Endorsement stacking: Foundation, water backup, service line, ordinance or law, extended replacement cost — we build the full protection stack, not just the minimum your lender requires.
• Closing-day coordination: We bind coverage and deliver the evidence of insurance to your title company on your timeline. New builds move fast; we move faster.

You don’t hire one contractor to build the house and inspect it. The same logic applies to insurance. Your builder shouldn’t be the one selecting your policy.

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