“AC quit at 1 pm on the hottest Saturday of June. Booked the 4 to 6 window from my phone, Devon showed at 4:20, capacitor swapped, cold air by 5. The price he quoted on the porch is the price I paid.”
Home / Indoor Air Quality
AirThe air you breathe 90 percent of the time is indoor air
Filtration that fits your system, humidity dialed to the healthy band, and duct answers based on measurement, not fear (pricing illustrative).
Indoor air is a category full of gadgets and fog. Our rule: measure first. A Kelvin IAQ visit starts with numbers, static pressure across your current filter, relative humidity readings through the house, and a look at what your duct system can actually support, because a filter your blower cannot breathe through makes air quality worse, not better.
From there the menu is short and honest. Better filtration sized to your return, whole-home humidity control for Virginia's swampy Julys and paper-dry Januarys, and ventilation or duct sealing when the measurements say so. No ozone machines, no miracle boxes.
Problems we can actually fix
- Allergy flare-ups indoors: filtration and duct hygiene
- Dust reappearing days after cleaning: filtration and duct leakage
- Static shocks and cracking trim in winter: humidity below 30 percent
- Sticky 65 percent summers upstairs: humidity control or airflow, the readings will say
- One room always stuffy: ventilation and balancing, not another gadget
The short honest menu
Media filtration: a 4 inch cabinet filter (MERV 11 to 13) that changes twice a year instead of monthly and actually fits your blower's capacity. Whole-home humidifier for winter, dedicated dehumidification where summers demand it. Duct sealing and balancing when the static pressure and room readings prove leakage, with before and after numbers on the same sheet.
Members on the Whole-Home plan get filters delivered on schedule and installed at each tune-up, which is the unglamorous habit that beats every gadget on this page (plan terms illustrative).
What it costs
| Job | Rate |
|---|---|
| IAQ assessment with readingsStatic pressure, humidity map, filter fit | $99, free with tune-up |
| 4 inch media filter cabinetInstalled, first filter included | from $640 |
| Whole-home humidifierInstalled and commissioned | from $780 |
| Filter delivery programRight size, on schedule | from $8/mo |
Illustrative demo pricing. Members take 10 to 20 percent off (plan terms on the membership page).
Fair questions
Do I need duct cleaning?
Sometimes, and less often than the coupon industry suggests. Visible mold, post-renovation debris, or verified infestation: yes. Routine dust: sealing and filtration usually beat cleaning. We will show you the borescope view and let you decide.
What filter should I be buying?
The best filter is the highest MERV your blower can breathe through, changed on time. That is a measurement, not a guess, and the assessment answers it for your exact system.
Do UV lights work?
On coil growth in humid climates, genuinely yes. As a whole-house air purifier cure-all, no. We install them for the first reason and will talk you out of the second.
Reviews
What the neighbors say
4.9 average across 2,384 reviews. Fictional reviews, illustrative of format.
“Tina found a duct leak two other companies missed. House finally cools evenly upstairs. Worth every dollar of the diagnostic.”
“They text you a photo of your tech and where the van is. My wife was home alone with the baby and actually knew who was knocking. Small thing, huge thing.”
Pick a window. We do the rest.
Two hour arrival windows, a tech you can vet before the doorbell, and the price agreed before work starts.