Indoor Air Quality Testing Fort Lauderdale, FL

It is the same flat price as the standard inspection, because the humidity mapping, the surface readings and the ventilation checks are part of every job here rather than an upgrade: $325 for a condo up to 1,000 square feet, $425 for a home up to 2,000, $525 up to 3,500. That includes the laboratory spore analysis and the outdoor control. Testing for things other than mold and moisture, such as combustion gases or formaldehyde, is different work with different instruments and we will say plainly that it is not what we do.

Below 55% in the day with the air conditioning running, which is the Florida Solar Energy Center figure for hot humid climates. Between 55 and 60 is a watch. Sustained readings of 70 to 75% mean cooling alone is not going to hold the house and you need dehumidification, and at that stage lowering the thermostat is counterproductive because it chills surfaces further and reduces their margin above dew point. A $15 hygrometer in the room you are worried about is the single most useful thing a homeowner in this county can own.

Usually not a stain. It is a smell that appears in one room and not the others, doors and drawers that start to stick in June and free up in January, a cold damp patch at the bottom of an exterior wall, condensation on a supply register or on the ceiling around it, and clothes or shoes at the back of a closet developing a bloom. Every one of those is a humidity and surface temperature story rather than a leak, and every one of them shows up on a hygrometer and an infrared thermometer before it shows up on a wall.

Because of what happens to the thermostat. A house left at 80F while the owners are away barely calls for cooling, so the system almost never runs, and a system that never runs never dehumidifies. The building then equalises with outdoor air that is sitting at a dew point in the low seventies. This is the classic seasonal-property failure in Broward and it is entirely preventable: leave the system running at a setting it will actually reach, or better, run a dehumidifier on a humidistat, which controls the variable that matters directly.

It would filter some of what is circulating and it would not touch the reason there is anything to filter. A purifier removes particles from air. It does not lower the humidity at the surface of a wall, it does not warm a cold surface, and it does not stop a colony inside a cavity from producing more. There are rooms where filtration is a sensible comfort measure alongside the actual repair. There are none where it is the repair, and we do not sell them in any case.

Nine times out of ten the extractor fan is not extracting. A fan can spin, sound entirely normal, and move almost no air, usually because the duct behind it is crushed, disconnected in the attic, blocked, or terminating somewhere that offers more resistance than it can overcome. The homeowner test is a single sheet of tissue held to the grille with the fan on: if it does not hold flat against it, the fan is decorative. We test airflow properly on every one of these jobs and it is frequently the whole answer.

It usually makes things worse in this climate, which surprises people because it sounds like more air movement should be better. With the fan on continuously, moisture that has just condensed on the cold evaporator coil gets blown back off it and re-evaporated into the house between cooling cycles, so a share of the water the system removed goes straight back where it came from. AUTO lets that condensate drain away instead. It is a free change, it takes ten seconds, and it is one of the more common recommendations in these reports.

Not properly, and we would rather say so than take the booking. This is a mold and moisture assessment: humidity, surface temperature, dew point margins, ventilation and fungal spore analysis. Volatile organic compounds, formaldehyde, radon and combustion gases are different disciplines with different instruments and different accreditation. If the concern is a chemical smell rather than a musty one, particularly in a house built between 2004 and 2007, the imported drywall question is worth raising and we can tell you what to look for.

Almost always airflow. A room with a closed door and no return air path goes to positive pressure when its supply register blows into it, which forces conditioned air out through the walls and pulls humid outdoor air in somewhere else in the house to replace it. Rooms over a garage, rooms on an exterior corner and rooms at the far end of a duct run are also systematically colder or less well served than the rest. All three show up as a single anomalous room on the humidity map, and all three have different fixes.