AC & heating repair · Largo, Florida
AC repair and HVAC service in Largo, FL
AC quit, heat pump struggling, or a system near the end of its life? In Largo, 94% of homes heat with electricity[1] and half were built before 1978. Request service from HVAC contractors working here. Largo, in Pinellas County — ZIPs 33771, 33770, 33774, 33764, 33760, 33778, counts 80,690 residents (2025 estimate)[2].
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Largo HVAC snapshot: the key figures
- Population (2025 est.)
- 80,690[2]-2.5% since 2020
- County
- Pinellas[2]
- Land area
- 18.8 sq mi[3]
- Homes heated with electricity
- 94%[1]the 7th-lowest share of the 14 Tampa Bay–area suburbs we cover
- Homes heated with utility gas
- 3%[1]plus 1% propane/LP
- Lightning-damage reports within 10 mi
- 26[4]2016–2025; power surges damage HVAC control boards
- Damaging-wind reports within 10 mi
- 23[4]2016–2025; wind-blown debris damages outdoor condenser units
- Homes built before 2000
- 87%[1]of 46,806 housing units
- Median year built
- 1978[1]the 3rd-oldest of the 14 Tampa Bay–area suburbs we cover
Reading the Largo data for HVAC
Largo is one of the most established suburbs tracked here — 80,690 people (2025 estimate), down just 2.5% since 2020[2]. On the map that's 18.8 square miles holding 4,298 residents per square mile, the 2nd densest of the suburbs here; it sits entirely in Pinellas County, with ZIP codes 33771, 33770, 33774, 33764, 33760, 33778[3].
Only 6% of Largo's homes were built in 2010 or later, against 87% before 2000[1] — most systems here are past any builder warranty, and older homes often keep their original ductwork.
Mail to Largo goes through 6 ZIP codes — 33771 (27% of the city's land), 33770 (22% of the city's land), 33774 (12% of the city's land), 33764 (12% of the city's land), 33760 (12% of the city's land), 33778 (6% of the city's land)[5].
Nearest of the other suburbs we track: Seminole (4.6 mi S), Clearwater (4.9 mi N) and Pinellas Park (5.3 mi SE)[3].
94% of occupied Largo homes heat with electricity, 3% with utility gas[1] — the 7th-lowest electric share of the 14 Tampa Bay–area suburbs we cover; nearby, Seminole (92%), Clearwater (93%), and Pinellas Park (92%) heat electrically. Electric heat usually means one outdoor unit doing both jobs.
Storm exposure for HVAC hardware: 26 lightning-damage reports within 10 miles; 23 damaging-wind reports within 10 miles in 2016–2025[4]. Most recent: Aug 18, 2025, 2.2 miles from the city center.
87% of Largo's 46,806 housing units were built before 2000 and 6% since 2010[1] (pre-2000 share nearby: Seminole (82%), Clearwater (84%), and Pinellas Park (84%)). Older homes often keep original ductwork.
Measured against the 14 suburbs on this site, Largo records the 3rd-oldest housing (by median year built) (1978, tied with Clearwater and Pinellas Park)[1].
How air moves through a central system
Return, filter, air handler, supply ducts: a clogged filter slows the whole loop.
Largo storm calendar
Within 10 miles of Largo, 2016–2025: 23 damaging-wind reports and 26 lightning reports[4]. Peak: 76% in May, July, and August. Busiest year 2019 (8). Busiest month July 2016 (5). Latest: lightning report, Aug 18, 2025, 2.2 mi out.
| Month | Damaging wind | Lightning | All |
|---|---|---|---|
| Jan | 3 | – | 3 |
| Feb | 1 | – | 1 |
| Mar | 1 | – | 1 |
| Apr | 1 | 1 | 2 |
| May | 5 | 1 | 6 |
| Jul | 3 | 11 | 14 |
| Aug | 5 | 12 | 17 |
| Sep | – | 1 | 1 |
| Nov | 3 | – | 3 |
| Dec | 1 | – | 1 |
HVAC help in Largo: what to do next
Requests go to AC & heating repair contractors serving the Largo area — ZIP codes 33771, 33770, 33774, 33764, 33760, 33778.
Before reaching out: repair or replace? what a good hvac visit covers
The Largo numbers behind this page
| Measure | Largo | Median of 14 | Difference |
|---|---|---|---|
| Propane / LP heat | 0.6% | 0.7% | about the same |
| Built 2010 or later | 6% | 7% | 1 pts lower |
| Built before 2000 | 87% | 84% | 3 pts higher |
| Damaging-wind reports (10 mi) | 23 | 23 | 1 more |
| Utility-gas heat | 3% | 3% | about the same |
| Electric heat | 94% | 94% | about the same |
| Median year built | 1978 | 1981 | 3 years older |
Sorted by largest difference. Each median is the middle value across the covered Tampa Bay–area suburbs, from the same sources.
| City | Lightning reports | Damaging-wind reports |
|---|---|---|
| Largo | 26 | 23 |
| Seminole 4.6 mi | 25 | 30 |
| Clearwater 4.9 mi | 28 | 23 |
| Pinellas Park 5.3 mi | 29 | 41 |
| Safety Harbor 8.2 mi | 25 | 24 |
| Dunedin 9.0 mi | 28 | 14 |
| Date | Wind | Distance |
|---|---|---|
| Aug 7, 2025 | 58 mph (est.) | 3.4 mi |
| May 14, 2024 | 70 mph (est.) | 1.3 mi |
| Aug 20, 2022 | 55 mph (est.) | 8.1 mi |
| Mar 12, 2022 | 60 mph (est.) | 2.2 mi |
| Aug 25, 2021 | 49 mph (est.) | 5.0 mi |
| Dec 24, 2020 | 60 mph (est.) | 2.5 mi |
| Date | Distance |
|---|---|
| Aug 18, 2025 | 2.2 mi |
| Aug 7, 2025 | 8.5 mi |
| May 31, 2025 | 4.9 mi |
| Aug 28, 2024 | 5.5 mi |
| Aug 29, 2024 | 4.4 mi |
| Apr 11, 2024 | 9.6 mi |
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Electricity | 35,137 | 93.6% | ±1,138 |
| Utility gas | 1,069 | 2.8% | ±251 |
| No fuel used | 734 | 2.0% | ±182 |
| Solar energy | 303 | 0.8% | ±136 |
| Bottled or tank gas (propane, butane, etc.) | 225 | 0.6% | ±94 |
| Fuel oil, kerosene, etc. | 36 | 0.1% | ±32 |
| Other fuel | 34 | 0.1% | ±48 |
| Coal or coke | 10 | 0.0% | ±16 |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 492 | 1.1% | ±177 |
| 2010 to 2019 | 2,363 | 5.0% | ±445 |
| 2000 to 2009 | 3,248 | 6.9% | ±500 |
| 1990 to 1999 | 4,982 | 10.6% | ±683 |
| 1980 to 1989 | 9,294 | 19.9% | ±906 |
| 1970 to 1979 | 15,897 | 34.0% | ±1,010 |
| 1960 to 1969 | 6,369 | 13.6% | ±687 |
| 1950 to 1959 | 3,328 | 7.1% | ±465 |
| 1940 to 1949 | 449 | 1.0% | ±294 |
| 1939 or earlier | 384 | 0.8% | ±169 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 46,806 |
| Detached single-family | 13,813 (30%) |
| Occupied homes | 37,548 |
| Owner-occupied | 23,182 (62%) |
| Renter-occupied | 14,366 (38%) |
| Median home value | $229,100 |
ACS 2020–2024 estimates.
| ZIP (ZCTA) | Share of Largo's land | Share of the ZIP inside the city |
|---|---|---|
| 33771 | 27% | 82% |
| 33770 | 22% | 77% |
| 33774 | 12% | 49% |
| 33764 | 12% | 34% |
| 33760 | 12% | 38% |
| 33778 | 6% | 31% |
Common Largo HVAC questions
Are heat pumps common in Largo?
94% of Largo homes heat with electricity[1], which means a heat pump or electric resistance heat.
How old are Largo's homes — and their HVAC systems?
The median home dates to 1978, and 6% were built in 2010 or later[1]. Your own system may have been replaced since — the outdoor unit's data plate shows when it was made.
Which Largo ZIP codes are covered?
33771, 33770, 33774, 33764, 33760, and 33778[5], Pinellas County. Nearby pages: Seminole (4.6 mi), Clearwater (4.9 mi), and Pinellas Park (5.3 mi)[3].
A lot of Largo homes predate 1980 — what does that mean for HVAC equipment work?
56% of Largo's housing units were built before 1980, 8.9% before 1960[1] — the 4th-highest share of the 14 Tampa Bay–area suburbs we cover. The ductwork in an older house is often original even when the equipment is not — ask for a duct leakage check with any replacement quote.
I rent in Largo. Who arranges the repair?
38% of occupied Largo homes are rented[1], the 4th-highest share of the 14 Tampa Bay–area suburbs we cover. Tell your landlord or property manager in writing first; your lease says who arranges repairs.
Sources
- Census ACS 2020–2024 5-year (keyless bulk)
- Census population estimates, Vintage 2025
- Census Gazetteer 2025
- NOAA Storm Events Database
- Census 2020 ZCTA–place file
Data pulled Sep 28, 2026. Full citations and method.