Run the number. Then keep going.
Four homeowner calculators tuned for Slidell homes — sizing, filter lookup, savings, and a seasonal checklist. No account, no spam, and every result comes with a path to a free on-site audit.
Pick the calculator that matches the problem
Each one runs in your browser without an account. When the number doesn't fit your house, the same technician who wrote it shows up for a flat-rate diagnostic.
Manual J Sizing CalculatorMost popular
Get a back-of-envelope recommendation for what tonnage your home actually needs — sensible vs. latent, ducts in the attic, Slidell-area climate. PDF + email back.
Open tool →Filter Size Finder
Look up the standard residential filter size that fits your tonnage. FilterBuy affiliate link ships filters to your door on schedule.
Open tool →Energy Savings Estimator
Compare a Slidell-area baseline 10-SEER AC with a 16-SEER variable-speed swap. Back-of-envelope payback + ROI over 10 years.
Open tool →Seasonal Maintenance Checklist
24 seasonal HVAC tasks for Slidell homes across four seasons. Check off what you finish, print the rest, and schedule a pro for the heavy lifts.
Open tool →Free Slidell-area guides
The same technician who put these calculators together wrote these homeowner-facing guides — the context to make sense of the numbers.
10 Louisiana HVAC Troubleshooting Tips →
Filter schedule, condensate drain, refrigerant line checks, thermostat settings, and the "call a pro" red flags.
Read guide →Why Did My Electric Bill Double? →
Humidity, leaky ducts, oversized two-stage, and a dirty coil — four common bill-spike culprits for Slidell-area homes.
Read guide →