What mold removal involves in a sealed new home, and what Texas licensing means before you hire a remediator.
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Mold remediation removes or cleans mold-affected materials, fixes the moisture that fed it and dries the structure. In Texas it is licensed work through TDLR, with an exemption for areas under 25 contiguous square feet and for owners on their own homes. The assessor and the remediator on one project must be different licence holders.
Mold in a house is a moisture problem first and a cleaning problem second. If the leak, the condensate line or the damp slab edge that fed it is still active, removing growth only buys time. Anyone quoting remediation should be able to say where the moisture came from, how it will be stopped and how the structure will be dried afterward.
In Texas, remediation is licensed work. The Texas Department of Licensing and Regulation, TDLR, licenses mold remediators under Occupations Code Chapter 1958 and the state's mold rules. The same rules separate assessment from removal: the licence holder who inspects and writes the plan may not also do the removal on the same project. This page explains what remediation involves, how the rules apply, and what to expect from the water side.
Celina Water Damage Restoration is a call line connecting callers with a local restoration company for water removal and drying. It does not offer mold testing and removal together, and it does not present itself as the licensed remediator. If you need remediation, ask whoever quotes it for their TDLR licence number and check it yourself.
Do not disturb large patches of mold, dry-brush or sand it, or run a fan across it, because that can spread spores through the house. Keep children, pets and anyone with asthma or a weak immune system out of the area.
A licensed assessor's written plan says what is affected and how it should be handled. The remediator works to that plan and does not write it.
The plumber, roofer or HVAC technician stops the source, and the structure is dried so the mold has nothing to feed on.
Plastic barriers, negative air and HEPA filtration keep spores from moving into the rest of the house while materials are disturbed.
Porous materials with growth, such as drywall, insulation or pad, are removed and bagged. Salvageable framing and hard surfaces are cleaned or abraded.
Air movers and dehumidifiers run until moisture meters read at the drying goal. Readings and photos are kept for your records.
A licensed assessor, who is not the remediator, checks the result against the protocol. Replacement drywall and paint are quoted separately after that.
Remediation is priced by the size of the affected area, the materials involved and how much containment is needed. Published ranges for the Dallas-Fort Worth area are wide, and the assessor's protocol is the best predictor of a real quote.
| Job | Typical range | What it includes |
|---|---|---|
| Mold remediation, 10 sq ft or less | $500–$1,500 | Small, accessible area |
| Mold remediation, 10 to 100 sq ft | $1,500–$3,500 | More containment and material removal |
| Mold remediation, over 100 sq ft | $3,500–$6,000 or more | Can run higher in extreme cases |
| Mold remediation, DFW overall | $1,500–$6,000 | A wide published range |
| Post-remediation mold testing (assessor) | $300–$600 | A separate licensed assessor, not the remediator |
These are typical ranges for Collin County in 2026, confirmed on site before any work starts. Insurance coverage for mold is decided by your insurer and is often limited, so check your policy.
Texas requires a mold remediation licence from TDLR unless an exemption applies. A licensed remediator must carry a current licence number, give the client a Consumer Mold Information Sheet before work starts and work to the protocol. Licences carry insurance and training requirements, and you can check any licence in TDLR's search.
The licensing comes from Texas Occupations Code Chapter 1958 and the Texas Mold Assessment and Remediation Rules in the Texas Administrative Code. TDLR took the programme over from the Department of State Health Services in 2017. New mold legislation took effect September 1, 2025; this page does not describe what changed, so ask TDLR for current rules.
Do not assume a water damage company is a licensed mold remediator. Ask for the licence number, check the licence type and make sure the name on the licence matches the name on your contract.
Texas rules do not allow one licence holder to both assess and remediate the same project. The assessor writes the protocol and checks the result, so independence protects you. A company that offers testing and removal as a package on your home is offering something the rules do not allow.
A common mistake is to call a company that advertises both services. Ask who will assess, who will remediate and whether they are different licence holders. If the answer is the same company, ask TDLR before you sign.
This site follows the same rule. Celina Water Damage Restoration does not sell testing and removal together, and the water removal and drying it connects callers with is a separate job from any mold assessment or removal.
An owner working on their own home is generally exempt from the Texas remediation licence, and the EPA says a moldy area under about 10 square feet can usually be cleaned by a homeowner. Larger areas, hidden growth or anyone with breathing problems are good reasons to bring in a licensed professional.
EPA guidance and the Texas licence rules are different things. The EPA figure is about when homeowner cleanup is reasonable. The Texas threshold of 25 contiguous square feet is about when a person needs a licence. The state's owner exemption is general, and TDLR is the place to confirm how it applies to your property.
If you clean small growth yourself, fix the water source first, wear a respirator and gloves, bag what you remove and dry the area. If the area keeps coming back, there is still moisture behind it.
Mold usually follows an unnoticed leak. A tight, air-conditioned new build holds moisture from a slow supply-line, water-heater, condensate or slab leak, and drywall, wood and insulation can stay damp for weeks. Prompt extraction and drying is the best way to limit growth.
A typical new-build call is a leak found late. A water heater drips in a garage closet, an attic AC drain overflows into a ceiling, or a line weeps in a wall until a stain appears. By then the material has been damp long enough for growth to start.
That is why drying and mold work go together without being the same job. The water side is extraction, drying and readings, and the structural drying page covers how a crew tracks those until the structure reaches its goal.
Texas does not require a licence to remediate an area where mold affects less than 25 contiguous square feet, and an owner working on their own home is also generally exempt. That is a licensing line, not a safety line. A small area can still sit on top of a bigger moisture problem.
Once the affected area reaches the licensing threshold, a licensed remediator has to do the work, with a written protocol, containment and a clearance check. Expect a Consumer Mold Information Sheet before work begins and a licence number on the paperwork.
Mold can grow behind drywall after a leak that never showed on the surface. Finding it often means opening a section and following the moisture. Scope can grow once walls are open, which is why the assessor's protocol and an on-site estimate matter.
A drying job lowers the risk, but dry materials can still contain growth that started before the crew arrived. This is why the EPA's 24 to 48 hour window is a guideline and not a deadline. The mold inspection page covers the assessment step.
Mold calls in Celina and the surrounding towns usually start as a water problem in a newer house: a supply line, a water heater, an irrigation break near the slab or an attic condensate drain. If the home is still under a builder's written warranty, tell the builder about the leak as well as your insurer.
Summer humidity and months of air conditioning keep North Texas homes closed up. Moisture that gets in has fewer ways out, which is the reason crews take readings in cabinets, baseboards and slab-edge walls long after the surface looks dry.
In older buildings such as those around Downtown Celina or Historic Downtown McKinney, ask about asbestos and lead paint before walls are opened. Homes built before 1978 fall under the EPA lead renovation rule.
A crew is dispatched as fast as one is available, and you approve the estimate before any work starts.
Not sure if you're covered? Check your ZIP code.
Moisture mapping after a leak, and a plain explanation of Texas mold assessment licensing before you hire anyone.
Air movers, dehumidifiers and daily moisture readings that dry walls, cabinets and floors after the water is removed.
Water removal, monitored drying and cleanup for slab-on-grade homes and businesses in Celina and north Collin County.
Published figures for the Dallas-Fort Worth area put a whole water damage restoration job at roughly $1,200 to $5,000, with large multi-room losses climbing past $15,000.
Texas licenses mold work through the Texas Department of Licensing and Regulation (TDLR).
Not as a cure. Bleach on a porous surface does not reach growth inside the material, and it does not fix the moisture. A licensed remediator removes or cleans affected materials and the structure is dried.
Ask for the licence number, then enter it in TDLR's licence search. Check the licence type, expiry date and that the name matches your contract. Do the same for the assessor.
Coverage is decided by your insurer under your own policy, and mold coverage is often limited or tied to a covered water loss. Check your policy or ask your agent early, and keep photos and reports.
It depends on the area, the materials and the drying. Small jobs can be short and larger ones take longer, and clearance by an assessor comes after. The remediator and assessor should give you the plan before work starts.
It can if moisture returns. Fixing the source, drying the structure and watching for new leaks are the best safeguards. Keep your records and recheck the area after the next heavy rain or a stretch of heavy AC use.
The call line connects you with a local restoration company for water removal and drying. For mold, ask whoever quotes the work for their TDLR licence and confirm that the assessor is a different licence holder.