123,471 permit-verified properties

HVAC leads in Jacksonville, FL

123,471 homes in Jacksonville, FL with no mechanical permit in 15+ years — every one verified against City of Jacksonville JaxEPICS permit records (Duval County, 1985–2026). No proxies, no year-built guesses: if there's no permit on record, there's no documented new system.

123,471
HVAC leads in Jacksonville
24 yrs
Median time since last permit
80%
20+ years since last permit
1985–2010
Permit years on file

A 15-year-old A/C in Florida is living on borrowed time.

Florida heat runs air conditioners harder than anywhere in the country — 12 to 15 years is a full service life here. The median system on this list was last permitted 24 years ago, and 80% are 20+ years out. These homeowners are facing a replacement decision soon, whether they know it or not; a repair call, an efficiency pitch, or a replacement quote all land better when you arrive before the breakdown does.

When A/C systems in Jacksonville were last permitted

Distribution of last-permit dates across all 123,471 leads — straight from the permit record.

1980s
12,355
1990s
38,653
2000s
66,647
2010s
5,816

Where this data comes from

Every lead on this list is a public government record: City of Jacksonville JaxEPICS permit records (Duval County, 1985–2026). Data is refreshed monthly, and every row shows its permit year, so you know exactly what you're walking up to before you knock.

How you get the contacts

Browse the full Jacksonville list free with addresses and owners locked. Emailed plans start at $149/mo founding rate for 50 homes a month, delivered on your schedule as a PDF + spreadsheet. The full app — map, roof photos, unlock any lead — starts at $599/mo for 400. Month-to-month, cancel anytime.

Frequently asked

How many HVAC leads does FirstKnock have in Jacksonville, FL?

123,471 residential properties in Jacksonville, FL whose last mechanical/heat-air permit is 15+ years old, sourced from City of Jacksonville JaxEPICS permit records (Duval County, 1985–2026).

Why use permit records instead of buying a call list?

Mechanical permits are public government records with a date stamp. When we show a home with no A/C permit since 1985–1995, that's a documented system age — not a modeled guess from a data broker.

What do I get for each lead?

Owner name, property address, parcel number, permit year, structure type, and (where available) mailing address. Emailed plans get each list as a PDF and a spreadsheet; on the app, export unlocked leads as a spreadsheet or PDF, or print a walk sheet.

Can I work multiple trades from one account?

Yes — every plan covers roofing, HVAC, and solar. On an emailed plan you pick the trades for your list; on the app they are separate tabs in the same tool.

Get to Jacksonville doors first.

123,471 permit-verified hvac leads in Jacksonville, FL, ready to filter, unlock, and knock. Founding rate is 25% off forever for the first 100 customers.

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Also in Jacksonville: Roofing leads (36,148)

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