Why Florida Isn't a "Three-Months" Climate
Most national advice says change your filter every 90 days. That guidance assumes a moderate climate where your AC runs a few months a year. In Miami, your system runs most of the year — often for 10 hours a day or more in peak summer. A filter that would last a quarter in Ohio gets hammered in a month here.
Recommended Filter Change Frequency for Miami-Dade
- Basic fiberglass filter (MERV 1–4): every 2–4 weeks in summer, 4–6 weeks in cooler months.
- Standard pleated filter (MERV 5–8): every 4–6 weeks in summer, 8 weeks otherwise.
- High-efficiency (MERV 11–13): every 60–90 days — but only if your system can handle the airflow restriction; check with a pro.
The dense humidity and airborne pollen of South Florida means filters load up faster than you'd expect. If you can't remember the last time you swapped the filter, it's due.
Signs Your Filter Is Clogged
- Weak or uneven airflow from vents.
- The outdoor condenser runs constantly without cycling off.
- Vents feel warmer than usual even after the system has run a while.
- Higher energy bills without a usage change.
When a New Filter Isn't Enough
A fresh filter helps, but it can't fix grime already baked onto your evaporator and condenser coils. When coils are dirty, the whole system works harder and cools less. That's where a professional deep clean comes in.
- Package A (essential cleaning): $89.99
- Package B (deep clean + anti-microbial): $189.99
- Fair-Play economy service: $69.99
- Freon top-up: $15.99 per can
No hidden fees. We'll confirm exactly what your system needs before we start.
Bottom Line
Change a basic filter monthly in the summer in Miami, and check it more often if you have pets, dust, or run your AC almost constantly. Replace the filter first; if airflow still feels weak, book a professional coil cleaning.
Frequently Asked Questions
Disposable filters aren't meant to be vacuumed — it damages the media and lets dust through. Replace disposables; if you want to clean a reusable filter, use a washable frame type.
Package A is our essential coil and filter service ($89.99). Package B adds anti-microbial treatment for $189.99. Both start with an honest assessment before anything's touched.