AC & heating repair · La Porte, Texas
AC repair and HVAC service in La Porte, TX
AC quit, heat pump struggling, or a system near the end of its life? In La Porte, 47% of homes heat with electricity[1] and half were built before 1983. Request service from HVAC contractors working here. La Porte, in Harris County — ZIP 77571, counts 37,983 residents (2025 estimate)[2].
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La Porte at a glance for HVAC
- Population (2025 est.)
- 37,983[2]+8.1% since 2020
- County
- Harris[2]
- Land area
- 18.6 sq mi[3]
- Homes heated with electricity
- 47%[1]the 7th-lowest share of the 15 Houston-area suburbs we cover
- Homes heated with utility gas
- 50%[1]plus 1% propane/LP
- Heat & excessive-heat days, harris zone
- 1[4]2016–2025
- Winter-storm & freeze days, harris zone
- 4[4]2016–2025; heating demand and freeze-related furnace failures
- Lightning-damage reports within 10 mi
- 3[4]2016–2025; power surges damage HVAC control boards
- Damaging-wind reports within 10 mi
- 29[4]2016–2025; wind-blown debris damages outdoor condenser units
- Homes built before 2000
- 75%[1]of 13,791 housing units
- Median year built
- 1983[1]the 5th-oldest of the 15 Houston-area suburbs we cover
What the local data means for HVAC in La Porte
La Porte counts 37,983 residents (2025 estimate), growing at a middle-of-the-pack 8.1% since 2020[2]. On the map that's 18.6 square miles holding 2,042 residents per square mile, the 7th densest of the suburbs here; it sits entirely in Harris County, with ZIP code 77571[3].
Only 12% of La Porte's homes were built in 2010 or later, against 75% before 2000[1] — most systems here are past any builder warranty, and older homes often keep their original ductwork.
77571 is the city's single ZIP code[5].
The closest tracked neighbours are Pasadena (6.2 mi W), Baytown (8.3 mi NE) and League City (12.8 mi S)[3].
47% of occupied La Porte homes heat with electricity, 50% with utility gas[1] — the 7th-lowest electric share of the 15 Houston-area suburbs we cover; nearby, Pasadena (50%), Baytown (60%), and League City (41%) heat electrically. Gas heat means a furnace plus a separate AC condenser.
Harris County forecast zone, 2016–2025: 1 heat or excessive-heat day (latest Aug 21, 2017) and 4 winter-storm or hard-freeze days[4]. Nearby: Pasadena (1), Baytown (1), and League City (0).
Storm exposure for HVAC hardware: 3 lightning-damage reports within 10 miles; 29 damaging-wind reports within 10 miles in 2016–2025[4]. Most recent: Mar 24, 2025, 2.5 miles from the city center.
75% of La Porte's 13,791 housing units were built before 2000 and 12% since 2010[1] (pre-2000 share nearby: Pasadena (83%), Baytown (71%), and League City (42%)). Older homes often keep original ductwork.
How air moves through a central system
How the loop runs: return duct to filter to air handler to supply ducts. A dirty filter slows everything downstream.
La Porte storm calendar
Within 10 miles of La Porte, 2016–2025: 29 damaging-wind reports and 3 lightning reports[4]. Peak: spread out; March, May, and October held 59%. Busiest year 2024 (9). Busiest month May 2024 (6). Latest: damaging-wind report, Mar 24, 2025, 2.5 mi out.
| Month | Damaging wind | Lightning | All |
|---|---|---|---|
| Jan | 2 | – | 2 |
| Feb | 1 | – | 1 |
| Mar | 4 | – | 4 |
| Apr | 1 | – | 1 |
| May | 7 | – | 7 |
| Jun | 3 | – | 3 |
| Jul | 3 | 1 | 4 |
| Aug | 1 | – | 1 |
| Oct | 6 | 2 | 8 |
| Dec | 1 | – | 1 |
HVAC help in La Porte: what to do next
AC & heating repair contractors taking requests around La Porte cover ZIP code 77571.
Before reaching out: repair or replace? what a good hvac visit covers
The data underneath this La Porte page
| Measure | La Porte | Median of 15 | Difference |
|---|---|---|---|
| Built 2010 or later | 12% | 19% | 8 pts lower |
| Built before 2000 | 75% | 66% | 9 pts higher |
| Damaging-wind reports (10 mi) | 29 | 26 | 3 more |
| Electric heat | 47% | 49% | 2 pts lower |
| Utility-gas heat | 50% | 50% | about the same |
| Median year built | 1983 | 1993 | 10 years older |
| Propane / LP heat | 1.0% | 1.0% | about the same |
Biggest gaps first. Medians are middle values across the Houston-area suburbs we cover, drawn from the same sources.
| City | Heat days | Freeze days | Lightning reports | Damaging-wind reports |
|---|---|---|---|---|
| La Porte | 1 | 4 | 3 | 29 |
| Pasadena 6.2 mi | 1 | 4 | 7 | 43 |
| Baytown 8.3 mi | 1 | 4 | 1 | 17 |
| League City 12.8 mi | 0 | 1 | 11 | 38 |
| Friendswood 14.3 mi | 0 | 1 | 12 | 35 |
| Pearland 18.2 mi | 0 | 1 | 5 | 38 |
| Date | Wind | Distance |
|---|---|---|
| Mar 24, 2025 | 58 mph | 2.5 mi |
| May 28, 2024 | 59 mph (est.) | 8.9 mi |
| May 16, 2024 | 63 mph | 5.2 mi |
| May 16, 2024 | 69 mph (est.) | 4.7 mi |
| May 16, 2024 | 74 mph | 6.7 mi |
| May 16, 2024 | 62 mph | 2.5 mi |
| Date | Distance |
|---|---|
| Oct 13, 2022 | 7.2 mi |
| Jul 30, 2019 | 6.1 mi |
| Oct 20, 2017 | 5.9 mi |
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Utility gas | 6,652 | 49.9% | ±472 |
| Electricity | 6,263 | 47.0% | ±475 |
| Bottled or tank gas (propane, butane, etc.) | 128 | 1.0% | ±91 |
| Solar energy | 107 | 0.8% | ±128 |
| Other fuel | 102 | 0.8% | ±161 |
| No fuel used | 77 | 0.6% | ±56 |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 509 | 3.7% | ±184 |
| 2010 to 2019 | 1,082 | 7.8% | ±253 |
| 2000 to 2009 | 1,791 | 13.0% | ±371 |
| 1990 to 1999 | 1,490 | 10.8% | ±298 |
| 1980 to 1989 | 3,058 | 22.2% | ±375 |
| 1970 to 1979 | 3,153 | 22.9% | ±470 |
| 1960 to 1969 | 1,373 | 10.0% | ±301 |
| 1950 to 1959 | 548 | 4.0% | ±168 |
| 1940 to 1949 | 363 | 2.6% | ±213 |
| 1939 or earlier | 424 | 3.1% | ±256 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 13,791 |
| Detached single-family | 10,177 (74%) |
| Occupied homes | 13,329 |
| Owner-occupied | 9,473 (71%) |
| Renter-occupied | 3,856 (29%) |
| Median home value | $234,600 |
ACS 2020–2024 estimates.
| ZIP (ZCTA) | Share of La Porte's land | Share of the ZIP inside the city |
|---|---|---|
| 77571 | 99% | 50% |
Dated heat and freeze records for the HARRIS forecast zone: see the county list.
HVAC questions from La Porte homeowners
Are heat pumps common in La Porte?
47% of La Porte homes heat with electricity[1], which means a heat pump or electric resistance heat.
How old are La Porte's homes — and their HVAC systems?
The median home dates to 1983, and 12% 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 La Porte ZIP codes are covered?
77571[5], Harris County. Nearby pages: Pasadena (6.2 mi), Baytown (8.3 mi), and League City (12.8 mi)[3].
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.