St. Petersburg has the oldest housing of any city we have written about. The median home was built in 1969, and more than three in four owner homes are older than 1980. Its HVAC market is not about new subdivisions or big heat spikes. It is about replacing systems in old houses, planned around hurricane season.
What is different about replacing HVAC in St. Pete homes?
The houses. Census data for 2020 to 2024 shows 77.4% of St. Petersburg's 74,915 owner-occupied homes were built before 1980, only 17.8% from 1980 to 2009, and 4.8% since 2010. An estimate in a 1960s house can involve ductwork, air handler placement and electrical capacity, not only the outdoor unit.
| St. Petersburg, Census ACS 2020 to 2024 | Figure |
|---|---|
| Occupied homes | 119,244 |
| Owner-occupied share | 62.8% |
| Owner homes built before 1980 | 77.4% |
| Owner homes built 1980 to 2009 | 13,347 (17.8%) |
| Owner homes built 2010 or later | 4.8% |
| Median year built | 1969 |
| Median home value | $371,100 |
| Heated by electricity / utility gas | 90.5% / 5.7% |
That changes what we ask. Beyond the standard six questions, the St. Pete qualifier asks where the indoor unit sits and whether the ducts have ever been replaced. Your comfort advisor can then plan a longer visit for the older houses instead of discovering the scope at the door.
Does St. Pete need a heating offer?
Barely. The St. Petersburg airport averages 0.1 freezing nights a year, a January normal low of 55.3°F and only 357 heating degree days, against 3,912 cooling degree days. With 90.5% of homes on electric heat and 5.7% on gas, furnace campaigns make little sense here.
So the off-season offer is not heating. It is a planned heat pump or straight-cool replacement before summer, booked while your install crews have room, plus maintenance memberships for owners whose systems are still running.
Why do St. Pete systems wear out without extreme heat?
A long season, not a hot one. The St. Petersburg airport averages 70.9 days a year at 90°F or more and none at 100°F, with a July normal high of 89.6°F. Yet its 3,912 cooling degree days show a long, steady load. Systems here wear out from months of running, not from a few extreme afternoons.
That shapes the copy. "Is your 20-year-old system running all day?" lands better than a heat-wave headline. The hottest stretch also runs late: August averages 19.1 days at 90°F, more than July's 17.4.
Who supplies power in St. Petersburg?
Duke Energy Florida. Outages in downtown St. Pete are reported on Duke Energy's outage map, and Duke Energy Florida supplies 2 million customers across a 13,000-square-mile area. That matters because the Tampa Electric rebate on our Tampa Bay page does not apply to Duke customers.
Duke's Home Energy Improvement program ties rebates to a free Home Energy Check first. Duke's February 2024 release listed up to $300 for a high-efficiency HVAC replacement in single-family homes. We could not open Duke's current program terms to confirm today's amount, so St. Pete ads carry no rebate figure. If you have the current terms in writing, we will review them.
How do storms change a St. Pete campaign?
They set the calendar. Duke Energy Florida says Hurricanes Helene and Milton caused nearly 2 million reported outages in Florida two years ago, and it marks September 10 as the peak of the season. We keep a pause plan for storm weeks and never run storm-fear ads.
After flooding, the City of St. Petersburg says water or storm damage affecting mechanical, electrical or plumbing systems requires a permit for repair or replacement. Post-storm leads get a flag in the CRM, so your team books a permitted replacement estimate, not a same-day swap.
How would we run Meta and Google in St. Pete?
Meta carries the year; Google takes the lead from June to September. Meta ads reach owners in older neighborhoods with a planned replacement offer and financing. Google bids on terms like "AC replacement St Petersburg" and "heat pump replacement Pinellas", excluding parts, DIY and repair-only searches.
| Month | Days at 90°F or more | Ad split at $4,000 | Offer focus |
|---|---|---|---|
| December to March | 0.0 each | Meta $2,500 / Google $1,500 | Planned heat pump replacement, memberships |
| April | 0.2 | Meta $2,500 / Google $1,500 | Replace before summer, financing |
| May | 5.0 | Meta $2,000 / Google $2,000 | Early-season replacement slots |
| June to August | 14.7, 17.4, 19.1 | Google $2,500 / Meta $1,500 | Replacement with a dated install slot |
| September | 11.9 | Google $2,500 / Meta $1,500 | Replacement; storm pause plan ready |
| October and November | 2.4, 0.1 | Meta $2,500 / Google $1,500 | Post-season replacement, permit-ready estimates |
Worked example: a St. Petersburg April at minimum spend (planning assumptions, not results)
Ad spend: Meta $2,500 + Google $1,500 = $4,000
$4,000 ÷ $100 to $130 assumed blended cost per lead = about 35 leads
35 × 60% pass the qualifier = about 21 qualified. 21 × 60% book = about 12 to 13 booked estimates
12.5 × 30% close rate = about 3 to 4 heat pump or straight-cool replacements
Ad cost per booked estimate: about $320. All-in with the $2,500 fee ($6,500): about $520
Break-even jobs = ($2,500 + $4,000) ÷ your gross profit per replacement, after any duct or electrical work you include
These are planning assumptions, not St. Pete data. Older homes may take longer to estimate, and your close rate on them may differ. Your first month replaces these numbers.
Is St. Petersburg open?
Yes. St. Pete is inside our Tampa Bay territory, which is open, one contractor per service line. We work from Sydney on Eastern Time and have no Florida office, staff or clients. The heat pump angle is in heat pump installation leads; see pricing or book a strategy call.
Sources
- U.S. Climate Normals 1991 to 2020, annual and seasonal, St. Petersburg AP (USW00092806), NOAA NCEI
- U.S. Climate Normals 1991 to 2020, monthly, St. Petersburg AP (USW00092806), NOAA NCEI
- Vintage 2025 population estimates, cities and towns, US Census Bureau
- American Community Survey 2020 to 2024 5-year, tables B25003, B25035, B25036, B25040 and B25077, US Census Bureau
- Building Permits Survey, 2025 annual by place, South Region, US Census Bureau
- Thousands of Friday night power outages reported in St. Pete, Duke Energy investigating cause, Bay News 9 (January 17, 2025)
- Duke Energy Florida marks peak of hurricane season with a stronger grid, Duke Energy News Center (September 10, 2026)
- Two Years After the Storms: Duke Energy Florida powers customers with a stronger grid, Duke Energy News Center (September 23, 2026)
- Duke Energy's rebates program helps Florida customers get money back for making home improvements, Duke Energy via ACCESS Newswire (February 6, 2024)
- Flooding, City of St. Petersburg