Guides
Homeowner guides, written by the crew
Direct answers first, then the detail — and only numbers we can stand behind. Every guide carries a last-reviewed date and links to its sources.
Topic
How we work
How to Compare HVAC Quotes: Flat-Rate, Hourly, 'Free Diagnostic'
What flat-rate pricing means, where hourly and free-diagnostic offers go wrong, what to ask any HVAC contractor, and how to read good-better-best quotes.
8 minUpdated Aug 23, 2026
How to Photograph Your HVAC Data Plate (and Get a Faster Quote)
Where the data plate is on your condenser, furnace and thermostat, how to read brand, tonnage and age, and how our photo upload speeds up your quote.
7 minUpdated Aug 23, 2026
Topic
Repair vs. replace
AC Repair vs. Replace in the Mid-South: 50% Rule & Payback Math
When to repair or replace an AC in Memphis and DeSoto County: the 50% and $5,000 rules, age, R-410A vs R-454B, SEER2, humidity, and worked payback math.
7 minUpdated Aug 23, 2026
R-410A to R-454B: What the 2025 Refrigerant Change Means for You
EPA's 2025 refrigerant change explained: R-410A stays serviceable, new systems use R-454B or R-32, what A2L means, and the repair-vs-replace impact.
7 minUpdated Aug 23, 2026
Topic
Air quality & ducts
Is Duct Cleaning Worth It? When You Need It — and When You Don't
EPA says duct cleaning is not proven to prevent health problems. When it is worth it, when it is not, what a real Mid-South job includes, and our price.
8 minUpdated Aug 23, 2026
Best HVAC Filters for Mid-South Allergy Season: MERV Explained
Which HVAC filter to use in Memphis allergy season: MERV ratings explained, why MERV 8–11 fits most systems, when MERV 13 makes sense, and change timing.
6 minUpdated Aug 23, 2026
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