A senior tech, a 2-hour arrival window, and a written quote before any work starts.
A senior tech, a 2-hour arrival window, and a written quote before any work starts.
Filtration, humidity control, purification and duct cleaning. Two things make Triangle air harder work than most — the pollen and the summer humidity — and they need different answers.
Three fields. Or just call — it is faster.
Indoor air quality is four or five different problems wearing the same name. The useful question is not “what should I buy” but “what am I actually noticing”.
| What you are noticing | What usually fixes it |
|---|---|
| Allergy symptoms that are worse indoors | Filtration upgrade. Finer media captures pollen and dander the builder-grade filter passes straight through. |
| Musty or mildew smell when the system runs | Coil-mounted UV plus duct cleaning. The smell is usually growth on a damp evaporator coil rather than in the ducts. |
| 72° and the house still feels sticky | Whole-house dehumidification. Above about 60% relative humidity a house feels warmer than it is, and cooling harder does not fix it. |
| Static shocks and dry skin all winter | Whole-house humidifier. Heating dries indoor air out, and the comfortable range is roughly 35–45% in winter. |
| Dust back two days after cleaning | Better filtration first, then duct cleaning if the ducts are genuinely dirty. In that order. |
| Pet dander through the house | Higher-grade filtration, sized so it does not choke your airflow. |
The pollen. The Triangle is heavily wooded and spring here is not subtle — there is a fortnight most years where everything outdoors turns yellow. That load gets pulled into the house every time the system runs, and a builder-grade filter is designed to protect the equipment, not your sinuses.
The humidity. Summers here run humid for months. Your AC removes moisture as a side effect of cooling, which works while it is running long cycles — but an oversized or short-cycling system cools the air without ever dehumidifying it properly. That is the house that reaches temperature and still feels clammy, and no amount of turning the thermostat down fixes it.
Almost every indoor air problem is solved by one of four things. They are listed cheapest first on purpose.
A finer filter restricts airflow. Fitting a very high-MERV filter to a system not designed for it starves the coil and can freeze it, so the filter has to be matched to the equipment.
Indoor air quality is the easiest part of this trade to oversell. There is always a bigger box, and the symptoms are subjective enough that it is hard for a homeowner to tell whether it worked.
So the order matters. If your complaint is dust and pollen, a media filter upgrade is a few hundred pounds of equipment that solves it, and we would rather fit that and have you call us again than sell you a whole-house purifier you did not need. If it is genuinely a humidity problem, no filter on earth will fix it and we will say so.
Published ranges. Where a job lands depends on your equipment, the space around the air handler, and whether ducting has to be modified to take a deeper filter cabinet.
| Repair | Typical range |
|---|---|
| MERV 11 media filter upgrade | $295–$595 |
| UV light installation (coil-mount) | $395–$795 |
| Whole-house bypass humidifier | $695–$995 |
| Whole-house powered humidifier | $895–$1,395 |
| Whole-house dehumidifier integration | $1,400–$2,400 |
| Premium HEPA whole-house purifier | $1,400–$2,800 |
| Bipolar ionization (REME HALO, iWave) | $895–$1,495 |
| Duct cleaning (whole house) | $495–$895 |
We will tell you which of these you actually need, and which you do not.
Pick your city for local detail, response times and the neighbourhoods we cover most:
Finer than the one-inch filter most systems ship with, but matched to your equipment. A very high-MERV filter on a system not designed for it restricts airflow enough to freeze the coil, so the right answer depends on the blower and the ductwork.
When the ducts are genuinely dirty — after building work, or in a house that has never had it done — yes. As a routine annual purchase, or as a fix for a problem that is really filtration, no.
Roughly 45–55% in summer and 35–45% in winter. Above about 60% a house feels warmer and stickier than the thermostat suggests, and that is a dehumidification problem rather than a cooling one.
UV targets biological growth on the coil, so it helps with musty smells and with what grows in a damp system. For pollen and dander, filtration is the lever that matters.
Usually a system that is oversized or short-cycling. It reaches the setpoint before it has run long enough to pull moisture out, so the air is cool and still damp. Whole-house dehumidification solves it directly.
Media filters get changed on a schedule measured in months rather than weeks, UV lamps are replaced roughly annually, and humidifier pads are seasonal. We fold all of it into a maintenance visit.
Tell us what you are noticing and we will tell you which lever actually addresses it.
A senior tech, a 2-hour arrival window, and a written quote before any work starts.
or call (919) 335-9030
One offer per visit. Not combinable with other discounts. Repairs only.
