College Station has an unusual housing stock. A very large proportion of it exists to serve Texas A&M, it is occupied on a twelve-month lease cycle that empties and refills in a few weeks each summer, and it is used harder than the same building would be anywhere else.
That produces a predictable set of problems and a predictable window in which to catch them.
Why student units grow mold
Occupancy above design. A three-bedroom unit designed around a family of three or four routinely houses four unrelated adults, each showering daily, often at different times, which means the bathroom never gets a chance to dry out between uses.
Ventilation nobody uses. Extract fans are noisy and switched off. Even where they work, they run for the length of a shower rather than the twenty minutes afterwards that actually removes the moisture. A timer switch changes this more than any other single intervention.
Windows closed year round. The Central Texas climate means air conditioning from March to November, and nobody opens a window. Whatever moisture is generated inside stays inside.
Drying laundry indoors. A rack of wet clothes in a bedroom puts several litres of water into the air over a night.
Small problems reported late. A student tenant with a slow leak under a sink is far more likely to put a bucket under it than to file a maintenance request. What would have been a plumbing call in September becomes a wall in April.
Empty over the summer. Some units sit vacant in the hottest, most humid months with the air conditioning turned up to save money. High interior humidity and no occupancy is precisely the condition that grows mold on furniture, in closets and on exterior walls.
The turnover inspection
This is what we recommend to owners and managers, and it is inexpensive per unit when done in batches during the summer changeover.
Moisture readings on any wall or ceiling with a history, under every sink, behind every toilet, and at the base of exterior walls.
Bathroom check. Extract fan tested for actual airflow, not just whether it makes a noise, and the duct traced to confirm it terminates outside. Shower and tub sealant inspected and re-run where it has failed. Grout condition. Any hollow-sounding tile.
HVAC check. Condensate line cleared, drain pan inspected, float switch confirmed working. The filter and its housing checked for bypass gaps.
Kitchen and laundry. Under the sink, behind the dishwasher, the washing machine supply lines and drain connection, and the dryer vent traced to its termination.
Closets and exterior walls. Where a unit sat empty and closed over summer, this is where surface growth appears.
Anything found gets photographed and reported. Most turnovers produce a short list of small items; occasionally one produces a finding worth acting on before the next tenant moves in, which is precisely the point.
For parents signing a lease
A number of the calls we take come from parents rather than students, often before a lease is signed or shortly after a student has moved in.
What is worth looking at during a viewing:
- Run the extract fan in each bathroom and hold a tissue to it — if it does not hold, the fan is not moving air
- Look at the sealant around the tub and shower base for dark lines or gaps
- Open the cabinet under every sink and look at the back corner
- Look at the ceiling under any upstairs bathroom for staining or a patched area
- Notice the smell in closets and in bedrooms that have been shut up
- Ask when the AC condensate line was last serviced, and watch how the answer lands
A musty smell in a unit that has been empty and closed for weeks is not proof of a problem, but it is a reason to look harder.
For students already living with it
Plain advice, and it is worth following in order.
Report it in writing. Email or the maintenance portal, not a text to a leasing agent. Keep the copy. In Texas, written notice is what starts the landlord's obligation to make a diligent effort to repair.
Photograph it with something for scale and a date.
Keep paying rent. Withholding rent is the most common mistake and it weakens your position substantially, because the repair duty is conditional on the tenant not being delinquent.
Do not clean it away before it is documented. A photograph of a wall you already scrubbed is worth much less.
Ventilate what you can. Run the fan for twenty minutes after showering, leave interior doors open, and do not dry laundry in a closed bedroom. It will not fix a leak and it makes a real difference to surface growth.
What is genuinely a problem and what is not
Being straight about this saves everyone time.
Dark spotting on shower grout and sealant is extremely common and is a cleaning and ventilation matter. It is not a health emergency and it is usually not the landlord's repair.
Growth that returns within days of cleaning, a musty smell with nothing visible, staining on a ceiling or the base of a wall, or soft drywall — those are building problems and they need reporting and assessing.
See mold inspection for what an assessment involves, and apartment and multifamily remediation for the work itself.
Common questions
Can my landlord make me pay for it?
Only where the condition was caused by the tenant. A building defect, a leak or inadequate ventilation is the owner's responsibility. An assessment establishes which.
Can I break my lease over mold?
That is a legal question and it depends on the severity, on your notice, and on the landlord's response. Talk to Texas A&M Student Legal Services before acting on assumptions.
Is the mold in my bathroom making me sick?
Damp indoor spaces are associated with respiratory symptoms and worsened asthma. Whether a particular symptom is caused by it is a question for a doctor, not a remediation contractor.
How much does a turnover inspection cost per unit?
Considerably less than the emergency call it prevents, and less again when done in batches over the summer. It scales with the number of units.
Can you inspect before I sign a lease?
Yes, with the current occupier's or the manager's permission. It is worth doing on an older property or one that has been rented continuously for years.
Should I use a home test kit?
No. Settle plates always grow something and cannot measure concentration. They produce anxiety rather than evidence.
Get a free assessment
Tell us what you are seeing and where. We come out, find the moisture source, and put the scope and the price in writing before anything is torn out.