Eight free tools that do the jobs homeowners actually get stuck on before they call anyone: whether to repair or replace, what the replacement should cost, what an efficiency upgrade really saves, what a plumbing job runs against its parts cost, how old the furnace actually is, and what size AC a room needs. No sign-up, no email — enter your numbers and get the answer.
Water Heater: Repair or Replace?
The age-and-cost test for the water heater you already own: enter its age and the repair quote, get the verdict the math supports.
Furnace: Repair or Replace?
The same test for the furnace — age, repair cost, and efficiency, weighed the way a technician who is not selling you anything would weigh them.
HVAC Replacement Cost Estimator
Central AC, furnace, heat pump, or a full system — size, efficiency tier, and ductwork changes priced into a 2026 installed range.
Water Heater Replacement Cost Tool
Tank or tankless, gas or electric, straight swap or new venting — the installed range for the job you actually have, not the one in the ad.
AC Efficiency Savings Tool
What a higher SEER rating really saves per year at your electric rate and your climate — and how long the payback takes at the quoted price.
Plumbing Job Cost Tool
Eight common plumbing jobs priced two ways: the pro’s installed price and the parts cost, with a difficulty rating and an honest verdict on each.
HVAC Age Decoder
Most brands hide the manufacture year in the serial number. Pick the brand, type the serial from the rating plate, get the year.
Room BTU Tool
Room size, ceiling height, insulation, and sun, converted to the BTU size to shop for in a window unit or mini-split head.
Every tool here runs on researched 2026 ranges and published rating-plate formats. None of them replaces a contractor’s eyes on the actual job — they exist so you know a fair price and the right questions before the truck is in the driveway.
Water Heater Age Decoder
How old is your water heater, really? Type the serial number off the rating plate and read the build date the way the manufacturer hid it — Rheem, A.O. Smith, and Bradford White codes decoded.