You will not find a clause in a Texas homeowners policy requiring you to wash your house, and no adjuster is going to ask for a pressure washing receipt. I want to say that first, because a lot of what is written on this subject online is close to scaremongering, usually by companies who would like to sell you the wash.
The real relationship between exterior maintenance and your insurance is narrower than that, and more useful to know. It runs through one word: condition. Condition is what an inspector reports at application and renewal. Condition is what separates a covered sudden loss from an excluded gradual one. And condition is the one thing on that list you actually control. Here is how it works in Texas, with the rules quoted from the state regulator rather than from anybody’s marketing page.
Age is protected. Condition is not.
This is the rule most Houston homeowners have backwards. The Consumer Bill of Rights that Texas requires insurers to deliver with every homeowners policy states it plainly: an insurance company cannot refuse to renew your policy based on the age of your property, but they can refuse to renew your policy based on the condition of your property, including your plumbing, heating, air conditioning, wiring or roof (Texas Department of Insurance).
Two things follow from that sentence. A 1972 house in Meyerland is not uninsurable because it is from 1972. And a well-kept 1972 house is in a materially better position than a neglected one, in a way the regulation itself recognises.
The same document is worth knowing for the protection it gives you. Your insurance company cannot refuse to renew your policy based on claims for damage from natural causes, including weather-related damage. If someone has told you that filing a hail claim in Houston gets you dropped, that is not how Texas works. And if a non-renewal does come, the company must let you know at least 60 days before your policy expires.
The roof inspection is where condition turns into money
The Texas Department of Insurance is direct about what happens when you apply: your insurance company will inspect your roof when you apply for insurance, and they may charge you more or refuse to insure you based on what they see (Texas Department of Insurance). If the roof is in poor condition, the company might not cover the roof at all.
There is a second, quieter mechanism that costs more over time. As roofs age, some companies switch from replacement cost to actual cash value. The department describes the difference plainly: some policies pay up to the full cost to repair your roof at current prices, which is replacement cost coverage, and some pay less if the roof is older or showing wear, which is actual cash value. On a roof past fifteen years the gap between those two settlements can be most of the cost of the job. Nobody sends a letter the day yours moves from one to the other. You find out at the claim.
I want to be careful here, because this is where the internet overreaches. No source I can point to says algae staining or dirt on its own is grounds for non-renewal, and I am not going to claim it is. What is true is that an inspector photographs what is in front of them, and a roof carrying heavy organic growth, blocked valleys and a gutter line full of standing debris reads differently in that report than a maintained one. The gutter part is not my inference. TDI’s own roof maintenance checklist includes keeping gutters clean to keep water from damaging your roof, and the Insurance Institute for Business and Home Safety makes the same recommendation ahead of hurricane season, telling homeowners to clear gutters and downspouts so heavy rain can drain away from the home (IBHS). When both the state regulator and the insurance industry’s own research body independently recommend the same task, it is worth putting on the calendar. Ours goes out as gutter cleaning twice a year for most Houston homes with mature trees.
What “wear and tear” actually excludes
Every Texas homeowners policy carves out deterioration, and the language is less abstract than it sounds. Companies will not pay for damages that happen over time, like rotted boards, cracking window seals or worn roofs (Texas Department of Insurance). The state’s own summary of Texas homeowners policy forms lists “wear and tear or maintenance” among the standard exclusions (Texas Department of Insurance).
TDI adds a consequence most homeowners never see coming. When you buy or renew a policy, the insurance company might inspect your house, and they could charge you more or not sell you a policy if your house is in poor condition. That inspection is not limited to the roof.
The real chain from neglect to an uncovered loss
Here is the mechanism that matters more than any of the above, and it is about water rather than dirt. Most home policies do not cover water damage from gradual leaks or seepage, and that includes damage from mold (Texas Department of Insurance).
Sudden and accidental is covered. Slow and ongoing is not. A gutter that has been overflowing down the same stretch of fascia for two seasons, soaking the sheathing behind it, produces exactly the pattern an adjuster classifies as gradual. The homeowner experiences it as a sudden discovery. The policy does not care when you noticed.
Mold in Texas follows the same logic and carries its own limits. The prescribed Texas endorsements exclude loss caused by mold, fungi or other microbes, and only cover ensuing mold losses that result from sudden and accidental discharge, leakage or overflow of water. Optional endorsements have historically been offered at 25, 50 or 100 percent of the dwelling limit, and that coverage is not additional insurance, so it comes out of the limit you already have rather than sitting on top of it. Most carriers now file their own forms, so treat that as a default and check what your specific policy says.
This is the honest version of “neglect affects your insurance.” Not a denied claim because the siding was dirty. A denied claim because water was getting in for eighteen months and the record shows it.
Which Texas policy form you hold changes the argument
Texas has historically used several standard homeowners forms, and the difference between them decides who has to prove what. The state’s own comparison describes the HO-A form as named perils for both building and contents, the HO-B form as all risk for the building with named perils for contents, and the HO-C form as all risk for both (Texas Department of Insurance).
Under a named-perils form, a loss is covered only if the cause appears on the list, so the burden sits with you to place it there. Under an all-risk form, damage is covered unless the policy excludes it, which shifts the argument onto the insurer to point at an exclusion. In a dispute over whether damage was sudden or gradual, that difference in starting position is worth real money.
Most carriers now file their own forms rather than using the prescribed ones, so yours may not map neatly onto any of the three. The point stands regardless. Find out which structure you are on before you need to know, because “wear and tear or maintenance” appears as an exclusion either way.
Nobody should be pressure washing your roof
Since this article is on a pressure washing company’s website, I will make the point that costs us work. Do not let anyone put a pressure washer on an asphalt shingle roof, including us.
The Asphalt Roofing Manufacturers Association is unambiguous: do not use a power washer or any type of brush or broom to clean algae from the roof surface, and avoid scrubbing, as the friction may loosen and remove granules (ARMA). GAF’s technical bulletin says the same and names the consequence, warning that power washing may dislodge granules, which can lead to premature shingle failure. Granules are the roof’s protection. Once they are gone the shingle ages faster, and a prematurely aged roof is the condition problem that started this article.
Fiber cement is worth the same caution, and it is on a very large share of Houston homes. James Hardie tells owners not to use a high-pressure power washer, recommending a low-pressure hose and a soft medium-bristle nonmetal brush instead (James Hardie). Neither manufacturer says high pressure voids the warranty outright, so I will not claim that either. What they do say is that it causes damage they will not stand behind, which amounts to the same problem for you.
Low pressure with the right cleaning solution takes the growth off without any of that, which is why our house washing is a soft wash rather than a blast, and why a company offering to power wash your shingles is a company to walk away from.
Documentation is the part that pays you back
If exterior maintenance helps you at claim time, this is how. A dated invoice showing the gutters were cleared in March and the siding washed in April is contemporaneous evidence that the property was being maintained, which is exactly what is in dispute when an adjuster is deciding whether damage was sudden or gradual.
TDI’s advice on documentation is worth following before you need it. Not having a home inventory could delay your claims payment, and most insurance companies will want a record of your lost or damaged items before they will pay a personal property claim (Texas Department of Insurance). After a storm, take pictures and video of the damage, make temporary repairs to prevent more damage, and do not throw anything away until the adjuster tells you.
One more Texas specific that catches people out. It is illegal under state law for a contractor to waive your homeowners deductible, and your insurer may ask for proof that you paid it. Any roofer or cleaning company offering to cover your deductible is offering to break the law on your behalf.
What I would actually do with all of this: photograph the exterior once a year in daylight, keep the receipts for anything done to the roof, gutters or siding in the same folder as the policy, and read your declarations page to find out whether your roof is still on replacement cost. Hard surfaces belong in that folder too. A dated pressure washing invoice for the driveway and walkways is the same kind of evidence, and those are the surfaces a liability claim tends to involve if a visitor falls. That last one takes ten minutes and is the highest-value thing in this article. If it has quietly moved to actual cash value, you want to know now rather than after the next hailstorm.
__________________________________________________
References
- Texas Department of Insurance, Consumer Bill of Rights: Homeowners, Dwelling, and Renters Insurance (28 TAC §5.9971(b)), https://www.tdi.texas.gov/rules/2026/documents/59971bfigure1.pdf
- Texas Department of Insurance, Insurance and your roof: What to know when buying a policy or filing a claim, https://www.tdi.texas.gov/tips/replacing-your-roof.html
- Texas Department of Insurance, Five things your home policy won’t cover, https://www.tdi.texas.gov/tips/what-your-home-policy-wont-cover.html
- Texas Department of Insurance, When are water damage and mold covered by insurance?, https://www.tdi.texas.gov/tips/when-are-water-damage-and-mold-covered-by-insurance.html
- Texas Department of Insurance, Texas Homeowners Policies (policy form comparison), https://www.tdi.texas.gov/reports/documents/texas-homeowners-policies-04122018.pdf
- Texas Department of Insurance, A home inventory: Why you need it and how to do it, https://www.tdi.texas.gov/tips/home-inventory.html
- Texas Department of Insurance, Claim tips after hail or windstorms, https://www.tdi.texas.gov/tips/after-hail-or-windstorms.html
- Asphalt Roofing Manufacturers Association, Algae Discoloration of Roofs, https://www.asphaltroofing.org/algae-discoloration-of-roofs/
- James Hardie, Tips for cleaning your siding, https://www.jameshardie.com/blog/siding-durability/tips-for-cleaning-your-siding/
- Insurance Institute for Business and Home Safety, Ahead of Hurricane Season, IBHS Urges Homeowners to Prepare Now to Reduce Storm Damage, https://ibhs.org/ibhs-news-releases/ahead-of-hurricane-season-ibhs-urges-homeowners-to-prepare-now-to-reduce-storm-damage/
