Pure Maintenance Austin TeamQuick answer: A "mold-free guarantee" is a company's own promise, usually measured with samples it takes itself and backed by a re-treat. Texas works differently: a licensed assessor writes the plan and checks the result, a separate licensed remediator does the work, and the owner gets a state Certificate of Mold Damage Remediation that matters when selling or insuring.
Fog and mold companies in many states advertise some version of a mold-free promise. The wording sounds simple, but the fine print decides what you're actually buying. Here's how to read those promises, what Texas law sets up instead, and why the two shouldn't be confused.
A note before we start: this is a plain-English summary of public law and advertising, not legal advice. Pure Maintenance Austin doesn't do mold work and makes no mold-related promises.
What do mold-free guarantees usually promise?
Usually a re-treatment, not a mold-free house. Advertised versions tend to follow a few patterns:
- A one-year "mold-free guarantee", backed by before-and-after air tests and a free re-treat if a later test comes back high.
- A comparison to outdoor air, promising indoor spore counts lower than the outdoor sample taken the same day.
- A regional benchmark, promising counts below a regional average for a year, or a re-treat at no charge.
- A broad "guaranteed results" line with no measurement named at all.
Most of these rest on samples the selling company takes or arranges itself. The remedy is almost always the same treatment again, so if the source of the moisture comes back, the promise tends to buy you another round of fog rather than a fix.
What should you ask about any guarantee?
Five questions turn a slogan into terms you can compare:
- Who takes the samples? The company selling the treatment, or someone with no stake in it?
- What number counts as a pass? Outdoor air that day, a regional average, or something else?
- What happens if it fails? A re-treat, a refund, or a repair of the cause?
- What's excluded? New leaks, high indoor humidity and anything behind walls are common carve-outs.
- Is it in writing? A guarantee you can't read in the contract is a sales line.
In Texas, the first question has a legal edge. When a company does it, taking any mold sample, from an air cassette to a tape lift, counts as mold assessment and needs a state license, whatever the size of the job.
How does Texas handle mold work instead?
With four separate steps and two separate licenses. Texas Occupations Code Chapter 1958 and the Texas Department of Licensing and Regulation (TDLR) rules set them out:
| Step | Who does it | What you get |
|---|---|---|
| 1. Assessment and protocol | A licensed mold assessment consultant | A written protocol naming the areas, methods, containment and clearance criteria, at least a day before work starts |
| 2. Work plan | A licensed mold remediation contractor | A plan for carrying out the protocol |
| 3. Remediation | The remediation contractor and registered workers | The work itself, plus before-and-after photos |
| 4. Post-remediation assessment | The assessment consultant, not the remediator | A written passed clearance report once the work meets the protocol |
Clearance isn't a single air test. Under 16 TAC 78.140, the assessor uses visual, procedural and analytical checks to confirm the work area is free of visible mold, that the work followed the protocol, and, as far as feasible, that the underlying cause was fixed so it's "reasonably certain" mold won't return from that cause.
Why can't one company test and treat the same job?
Because Texas law forbids it. Section 1958.155 says a license holder may not perform both mold assessment and mold remediation on the same project, and no one may own an interest in both the assessing and the remediating company on that project. TDLR's FAQ repeats the point for people who hold both licenses. The legislature amended Chapter 1958 again in 2025 (Senate Bill 1255), so confirm current details with TDLR before you hire.
Picture a referee who also plays for one of the teams. Texas wants the person who calls the result to have no money riding on it, either as the worker or as a co-owner. A guarantee measured with the treating company's own samples is the arrangement Texas built its law to avoid.
What is the Certificate of Mold Damage Remediation?
It's the state's written record that a licensed project passed. Within 10 days after a licensed remediation ends, the remediation contractor must give the owner the certificate on a form from the Texas Department of Insurance. Under 16 TAC 78.150, the key statement is signed by the licensed assessor, not the remediator: that the mold identified for the project was remediated as the protocol laid out.
When the assessor also concludes the underlying cause was fixed, the certificate says that too. For small jobs that unlicensed people may legally do, a licensed assessor can sign the bottom section instead, certifying that the property shows no evidence of mold damage.
Why does the certificate matter for selling or insuring a home?
It travels with the house, and the law gives it weight:
- Selling: an owner who sells must give the buyer a copy of every certificate issued for the property in the previous five years (Sec. 1958.154).
- Liability: a property owner isn't liable for damages related to mold remediation that accrued on or before the date a certificate was issued (Sec. 1958.303).
- Insurance: under Texas Insurance Code Sec. 544.303, an insurer may not make an underwriting decision on a residential policy based on past mold damage when, among other conditions, a certificate shows the underlying cause was remediated, or an independent assessor or adjuster found no evidence of mold damage.
A company's private guarantee carries none of those effects. It's a contract between you and the seller, worth whatever its fine print says.
How do a guarantee and a certificate compare?
| Typical mold-free guarantee | Texas certificate | |
|---|---|---|
| Who measures | Often the selling company | A licensed assessor separate from the remediator |
| What's measured | Usually an air sample against a chosen benchmark | Visual, procedural and analytical checks against the protocol |
| What it covers | The company's own treatment | The areas named in the protocol |
| If it fails | Usually a re-treat | No passed clearance until the work meets the protocol |
| Legal weight | A private promise | Disclosure on sale, liability and insurance effects set by statute |
Neither one promises mold can never come back. A new roof leak is a new cause, and no certificate or guarantee covers water that arrives next spring.
Who should you call in Central Texas?
Start with the right license. If you want to know whether you have mold, or want samples taken, hire an independent licensed mold assessment consultant, then let that assessor's protocol guide whoever does the work. You can check any license on TDLR's mold program pages.
Mold in your AC system or ductwork? Call Gold Eagle Services, a licensed Texas mold remediation company that handles HVAC mold, at 512-489-4653. For mold anywhere else in the home, contact an independent state-licensed mold assessor or remediation company.
Our part sits outside any mold project. When the cause of a smell is fixed and no mold work is underway, a lingering stale or musty odor is where Pure Maintenance Austin's whole-home dry fog treatment fits: it helps control the growth of odor-causing microorganisms on hard, non-porous surfaces and temporarily reduces airborne particulates. It's done in one day, with no samples and no mold claims.
Common questions
Does a Texas certificate mean mold can never come back?
No. It records that the identified mold was remediated under the protocol and, when the assessor says so, that the underlying cause was fixed. A new source of water can start a new problem.
Can I get a certificate if I cleaned a small area myself?
Possibly. For jobs that don't require a licensed remediator, a licensed assessor can inspect and sign the certificate's bottom section if the property shows no evidence of mold damage. TDLR's mold FAQ explains when that section applies.
Does Texas law say anything about guarantees?
Not directly. The mold law is about the work: who takes the samples and whether a job is remediation that needs a license. Separately, Texas consumer protection law bars ads that suggest a license, approval or certification a company doesn't have.
Does Pure Maintenance Austin offer any guarantee?
No. We describe what our treatment does on hard, non-porous surfaces and in the air, and we send mold questions to licensed professionals.
What should you do next?
- Ask any company offering a mold guarantee who takes the samples.
- Hire an independent licensed assessor first if you suspect mold.
- Keep every Certificate of Mold Damage Remediation with your house records.
- Book a free phone consultation if a stale smell lingers once its cause is fixed.
Get a free phone consultation
Book a free phone consultation. A Comfort Advisor will call you, learn what's going on in your home and send a written quote based on square footage. Pure Maintenance Austin, brought to you by Gold Eagle Services, serves all of Central Texas, including College Station, Round Rock, Georgetown, San Marcos, Bastrop and Marble Falls.
Call 512-904-4646 or email IAQ@goldeagleservices.com. We're open Monday through Saturday, 7am to 7pm.