Home Insurance in North Houston

The line that decides how a Houston-area house is insured runs along State Highway 146, and it is nowhere near the north corridor. Almost everything a Woodlands homeowner reads about windstorm is describing somebody else's house.

If you own a house in The Woodlands, Spring, Cypress or Katy, almost everything written about insuring a Houston-area home is about somebody else’s house.

It is about storm surge, windstorm carve-outs, TWIA eligibility and a coastline forty to fifty miles from your front door. Read enough of it and you arrive at one of two wrong conclusions: that you are dangerously underinsured against a peril that does not reach you, or that since none of it applies, there is nothing here worth checking.

There is. It is just a completely different list, and it starts with a line on a map that nobody local has bothered to draw for you.

The line that decides how your house is insured

Texas draws a statutory boundary called the designated catastrophe area. Inside it, wind and hail are commonly excluded from the homeowners policy and bought back separately, usually through the Texas Windstorm Insurance Association. Outside it, wind and hail stay inside the policy you already have.

The boundary covers the fourteen first-tier coastal counties, plus the slice of Harris County east of State Highway 146 — specifically the city limits of La Porte, Morgan’s Point, Pasadena, Seabrook and Shoreacres.

That is the whole of it. Five cities, on the bay side of the county, east of one highway.

The Woodlands, Spring, Cypress, Katy and Tomball are nowhere near it. Montgomery County is not a first-tier county. The Harris County carve-out is a corner of the county forty-plus miles from any of them. There is no separate windstorm policy for sale in the north corridor, and nothing to buy back.

Which produces the practical fact this article exists to deliver: your wind and hail coverage is inside your homeowners policy, and so is the deductible that applies to it.

The honest note about where we are

Moon’s office is at 360 FM 1959, on Houston’s southeast side — south of the city, and inside the corridor described above. We are not a Woodlands agency and this page is not going to pretend otherwise.

The argument runs the other way. An agency that spends its working life on wind, hail and roof age in the hardest property market in the region is precisely the office a Cypress homeowner with a nineteen-year-old roof should call. Independent placement is not a walk-in service; it is knowing which carriers will still write a risk another one declined, and that knowledge does not have a postcode.

North of Houston, hail is the risk

The corridor’s peril is not surge and it is not a named system off the Gulf. It is hail, and it arrives inland with no coastline involved at all.

On 9 June 2025 a hailstorm ran across The Woodlands, Creekside Park, Augusta Pines, Hufsmith, Tomball and Spring, with stones at golf-ball size and larger, damaging roofs and vehicles across Montgomery and Harris counties. In November 2025 a tornado damaged more than a hundred homes in the Memorial Northwest area of Spring.

Neither of those is a coastal event and neither would have been affected by a windstorm policy, because both landed on the homeowners policy — behind the wind and hail percentage deductible, which is the number that matters most in this corridor and the one almost nobody has converted into dollars.

It is written as a percentage of your dwelling coverage rather than a dollar amount, and on corridor values that percentage is a five-figure retention. Our wind and hail deductible article does the whole arithmetic, including the case that catches people: a hail claim smaller than the deductible, which pays nothing at all.

Your submarket, specifically

What actually differs between these places is not the wind answer — that is identical across all of them — but which question dominates.

Submarket	County	Wind treatment	The dominant question
The Woodlands	Montgomery	On the homeowners policy	Mature stock — roofs entering the age window together
Kingwood	Harris	On the homeowners policy	Roof age, and flood outside the mapped floodplain
Cypress	Harris	On the homeowners policy	Rapid build-out, wide variation in roof age street to street
Spring	Harris / Montgomery	On the homeowners policy	Two counties, two rating pictures
Katy	Harris / Fort Bend / Waller	On the homeowners policy	Three counties; drainage and reservoir history
Conroe / Montgomery	Montgomery	On the homeowners policy	Newest roofs; replacement cost readily available

We have deliberately not published dwelling values in that table. Corridor property values are widely quoted and thinly sourced, they move faster than an article does, and the number that actually governs your policy is the Coverage A figure on your own declarations page — which is a replacement-cost estimate rather than a market value, and is frequently different from both.

Four of these have their own page: The Woodlands, Spring, Cypress and Katy.

Why the same house prices differently across a county line

This is the part nobody local has written down, and it accounts for a large share of the “why is my neighbour paying less” conversations in this corridor.

A house in Spring can sit in Harris County or Montgomery County. A Katy address can be in Harris, Fort Bend or Waller. The postal address does not tell you and the school district does not tell you — the deed does.

Four things follow the county rather than the mailing address:

Territory rating. Carriers rate by territory and county-level loss history feeds it. Two adjacent houses can sit in different territories with different base rates.
Fire protection class. The responding district and its rating move with the district boundary, and feed directly into the premium.
The appraisal district. Harris Central or Montgomery Central, Fort Bend or Waller — different valuations, none of which is the replacement cost your dwelling limit should actually be set to.
Which court hears a license petition, which matters if anybody in the household is dealing with a suspension.

Readers experience this as an inexplicable quote difference between neighbours. It is not inexplicable. It is a county line running through a subdivision, and it is worth knowing which side of it you are on before assuming somebody negotiated better than you did.

New construction is not exempt from flood

Short, and it is the point most likely to be dismissed by exactly the people it applies to.

Most Harris County flooding has historically happened outside the mapped Special Flood Hazard Area — the 1 percent annual chance floodplain where a federally regulated lender must require flood insurance.

Which yields the rule: a lender not requiring flood insurance is a statement about a map, not about your house. The mapped area describes where a requirement applies. It does not describe where water goes.

Inland and newly built does not mean no exposure. Katy’s most consequential flooding on record involved properties east of the city that no map had flagged. Montgomery County has its own creek and San Jacinto watershed history. Our flood insurance page carries the full version, including the 30-day waiting period that removes the option of buying a policy once a forecast appears.

Flood is always separate from the homeowners policy. It is separate from wind, too — storm surge is flood rather than wind, whatever pushed it inland.

Roofs, and the underwriting filter

If the corridor has one dominant insurance problem in 2026, this is it.

Montgomery County has been among the fastest-growing counties in the state, and the building boom that produced this corridor also produced a very large cohort of roofs crossing the fifteen-year line at roughly the same time. They are crossing it into a market that has spent the year tightening on exactly that factor.

What tends to happen across the market — as tendency, never as any carrier’s published rule:

Under about ten years, replacement cost coverage on the roof is commonly available
Roughly fifteen to twenty, many carriers move the roof to actual cash value or ask for an inspection first
Past about twenty, non-renewal becomes common regardless of condition

Two things make this land harder here than the numbers suggest. Heat and UV age a composition roof faster in this climate than its nominal rating implies. And aerial imagery means the assessment happens without anybody visiting — so the question arrives on a policy that has renewed quietly for a decade, about a roof that has never leaked.

Our roof age article works through what actual cash value does to a hail claim once the percentage deductible has also come off it, and answers the question the roofing companies ranking for these searches cannot: replace, or re-shop?

If a notice has already arrived, our non-renewal article sets out the sequence — what to do, in what order, and against what clock.

What an independent agency does in this corridor

Restrained, because the useful version of this is a description rather than a pitch.

Carriers disagree, sharply and specifically, on the three things that decide a corridor policy: roof age, claims history and county territory. One will decline a nineteen-year-old roof; another writes it at actual cash value without comment; a third writes it at replacement cost on a clean inspection. None of them has looked at your house — they have looked at a category.

Moon has been placing Texas personal and commercial lines since 1985, from one office, under TDI license #5595. We write the standard market and surplus lines, we are a registered TWIA agent for the addresses where that is relevant, we bind the same day, and there is no charge for a quote or an application.

What we do not do is claim an office we do not have. There is one, it is on FM 1959, and the work happens on the phone.

Where to start

Bring the roof’s installation date and the declarations page.

We will tell you what your wind and hail percentage converts to in dollars, whether the roof is written at replacement cost or actual cash value, whether a named-storm deductible is sitting behind the wind and hail one, and which county you are actually being rated in.

Then the submarket pages: The Woodlands, Spring, Cypress and Katy — each carrying the fact that makes that place different from the other three.

The full coverage picture is on our homeowners insurance page. And if your house does sit east of State Highway 146, the windstorm insurance page is the one written for you instead.

Common questions

Do I need windstorm insurance in The Woodlands?

No. There is no separate windstorm policy to buy this far inland. The Woodlands sits roughly fifty miles from the designated catastrophe area, and wind and hail are normally included in your homeowners policy, subject to a percentage deductible. If a page has pointed you toward TWIA for a Woodlands address, it was written for the bay side.

Is Cypress or Katy in the TWIA area?

Neither. The designated catastrophe area in Harris County covers city limits east of State Highway 146 — La Porte, Morgan's Point, Pasadena, Seabrook and Shoreacres. Cypress is roughly forty-five miles northwest of that line and Katy is on the far west side of the metro.

Why is my neighbour's home insurance cheaper than mine?

Roof age and the claims history attached to each individual property do most of the work. In Spring and Katy there is a further answer that surprises people: you may not be in the same county. Territory rating, fire protection class and county-level loss history all move with a boundary that does not follow the postal address.

Do I need flood insurance in north Houston?

Possibly, and a lender not requiring it is not a statement about your exposure. Most Harris County flooding has historically happened outside the mapped Special Flood Hazard Area. Flood is always a separate policy from homeowners, and it carries a 30-day waiting period that removes the option of buying it when a forecast appears.

Does hail damage count against me even if I don't file?

Loss history follows the property, and a claim below your deductible pays nothing while still being capable of being recorded. That makes the filing decision worth working through in advance — starting with converting your percentage deductible into an actual dollar figure so you know where the threshold sits.

Moon's office is south of Houston. Why use them in Cypress?

Independent placement is not a walk-in service — the work is finding which carriers will write your address and your roof, and that is done by phone and email. An agency handling the hardest property risk in the region, on the bay side, spends its time on exactly the question a Cypress homeowner with an ageing roof is asking.

Is roof age really the main issue up here?

In this corridor, yes. Montgomery County's building boom means a large cohort of roofs crossing the fifteen-year line at the same time, in a market where carriers are moving older roofs to actual cash value and declining to renew past twenty. It is the dominant underwriting question north of the city.

Sources: TWIA — Frequently Asked Questions; TDI — Home insurance; TDI — Residential property insurance (consumer bill CB025); Community Impact — Harris, Montgomery and Fort Bend counties see population increases (1 April 2026); Partners Real Estate — Houston's northward expansion: The Woodlands, Conroe and Montgomery County; Martin Roofing & Solar — 9 June 2025 hailstorm across The Woodlands, Tomball and Spring; FEMA — Flood Map Service Center. Verified 4 August 2026.

General information about Texas filing rules, not legal advice and not a quote. Requirements change; confirm your own through the Texas DPS License Eligibility system before acting. Published 4 August 2026.