Free HVAC Tools
That Give You Straight Answers
No sales pitch, no inflated quotes. Just honest calculators and finders that tell you what you actually need and what it should cost.
HVAC Cost Calculator
Get a realistic price range to replace your system, the right size for your home, and an honest repair-or-replace verdict.
What Size AC Do I Need?
BTU and tonnage calculator for a single room or your whole house, adjusted for climate, insulation, and sun.
Budget Cooling Finder
Honest under-$100 cooling picks with current prices, matched to your room and window, plus the junk to avoid.
AC Mold Risk Checklist
Check the warning signs in your air conditioner and get your risk level with a clear action plan in 2 minutes.
Sliding Window AC Finder
Enter your window opening and find the exact AC units that actually fit horizontal sliders. No expensive mods.
Air Filter Advisor
Find your size, the right MERV without choking airflow, and whether a longer-lasting filter saves you money.
Why Is My AC Not Cooling?
Answer a few questions and pinpoint the likely cause, what you can fix yourself, and when to call a pro.
Not Sure Where To Start?
If you are weighing a repair against a full replacement, that is the place to begin. It takes 60 seconds and tells you whether you should even be shopping yet.
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