AC & heating repair · Galveston, Texas
AC repair and HVAC service in Galveston, TX
AC quit, heat pump struggling, or a system near the end of its life? In Galveston, 63% of homes heat with electricity[1] and half were built before 1973. Request service from HVAC contractors working here. Galveston, in Galveston County — ZIPs 77554, 77550, 77551, 77555, counts 53,636 residents (2025 estimate)[2].
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Galveston HVAC snapshot: the key figures
- Population (2025 est.)
- 53,636[2]-0.1% since 2020
- County
- Galveston[2]
- Land area
- 41.0 sq mi[3]
- Homes heated with electricity
- 63%[1]the 2nd-highest share of the 15 Houston-area suburbs we cover
- Homes heated with utility gas
- 35%[1]plus 0% propane/LP
- Heat & excessive-heat days, galveston zone
- 0[4]2016–2025
- Winter-storm & freeze days, galveston zone
- 1[4]2016–2025; heating demand and freeze-related furnace failures
- Lightning-damage reports within 10 mi
- 1[4]2016–2025; power surges damage HVAC control boards
- Damaging-wind reports within 10 mi
- 8[4]2016–2025; wind-blown debris damages outdoor condenser units
- Homes built before 2000
- 81%[1]of 35,776 housing units
- Median year built
- 1973[1]the oldest of the 15 Houston-area suburbs we cover
Reading the Galveston data for HVAC
Galveston is one of the most established suburbs tracked here — 53,636 people (2025 estimate), down just 0.1% since 2020[2]. The city spans 41.0 square miles at 1,307 residents per square mile (the 12th densest) and sits entirely in Galveston County, served by ZIP codes 77554, 77550, 77551, 77555[3].
Only 11% of Galveston's homes were built in 2010 or later, against 81% before 2000[1] — most systems here are past any builder warranty, and older homes often keep their original ductwork.
4 ZIP codes cover Galveston — 77554 (72% of the city's land), 77550 (18% of the city's land), 77551 (10% of the city's land), 77555 (0% of the city's land)[5].
The tracked suburbs closest by are Texas City (17.7 mi N), League City (22.7 mi N) and Friendswood (26.3 mi NW)[3].
63% of occupied Galveston homes heat with electricity, 35% with utility gas[1] — the 2nd-highest electric share of the 15 Houston-area suburbs we cover; nearby, Texas City (60%), League City (41%), and Friendswood (43%) heat electrically. Electric heat usually means one outdoor unit doing both jobs.
Galveston County forecast zone, 2016–2025: 0 heat or excessive-heat days and 1 winter-storm or hard-freeze day[4].
Storm exposure for HVAC hardware: 1 lightning-damage report within 10 miles; 8 damaging-wind reports within 10 miles in 2016–2025[4]. Most recent: May 30, 2025, 10.0 miles from the city center.
81% of Galveston's 35,776 housing units were built before 2000 and 11% since 2010[1] (pre-2000 share nearby: Texas City (66%), League City (42%), and Friendswood (67%)). Older homes often keep original ductwork.
Measured against the 15 suburbs on this site, Galveston records the oldest housing (by median year built) (1973)[1], the fewest damaging-wind reports nearby (8)[4], the 2nd-highest electric-heat share (63%)[1], and the 2nd-lowest gas-heat share (35%)[1].
How air moves through a central system
Air path: return duct, filter, air handler, supply ducts — one clogged filter drags the whole loop down.
Galveston storm calendar
Within 10 miles of Galveston, 2016–2025: 8 damaging-wind reports and 1 lightning report[4]. Peak: 89% in May, June, and August. Busiest year 2024 (3); 4 of 10 years had none. Busiest month June 2024 (2). Latest: damaging-wind report, May 30, 2025, 10.0 mi out.
| Month | Damaging wind | Lightning | All |
|---|---|---|---|
| May | 4 | – | 4 |
| Jun | 3 | – | 3 |
| Aug | – | 1 | 1 |
| Nov | 1 | – | 1 |
HVAC help in Galveston: what to do next
Requests go to AC & heating repair contractors serving the Galveston area — ZIP codes 77554, 77550, 77551, 77555.
Before reaching out: repair or replace? what a good hvac visit covers
Galveston by the numbers
| Measure | Galveston | Median of 15 | Difference |
|---|---|---|---|
| Damaging-wind reports (10 mi) | 8 | 26 | 18 fewer |
| Propane / LP heat | 0.4% | 1.0% | 1 pts lower |
| Built 2010 or later | 11% | 19% | 8 pts lower |
| Utility-gas heat | 35% | 50% | 14 pts lower |
| Electric heat | 63% | 49% | 14 pts higher |
| Built before 2000 | 81% | 66% | 14 pts higher |
| Median year built | 1973 | 1993 | 20 years older |
Largest differences first. Medians are the middle value across the covered Houston-area suburbs, from the same sources.
| City | Heat days | Freeze days | Lightning reports | Damaging-wind reports |
|---|---|---|---|---|
| Galveston | 0 | 1 | 1 | 8 |
| Texas City 17.7 mi | 0 | 1 | 1 | 17 |
| League City 22.7 mi | 0 | 1 | 11 | 38 |
| Friendswood 26.3 mi | 0 | 1 | 12 | 35 |
| Pearland 33.4 mi | 0 | 1 | 5 | 38 |
| La Porte 33.6 mi | 1 | 4 | 3 | 29 |
| Date | Wind | Distance |
|---|---|---|
| May 30, 2025 | 60 mph (est.) | 10.0 mi |
| Jun 5, 2024 | 59 mph | 9.6 mi |
| Jun 5, 2024 | 63 mph | 9.6 mi |
| May 28, 2024 | 62 mph | 8.2 mi |
| Jun 8, 2023 | 61 mph | 8.6 mi |
| Nov 24, 2022 | 61 mph | 8.2 mi |
| Date | Distance |
|---|---|
| Aug 29, 2018 | 7.3 mi |
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Electricity | 15,912 | 63.1% | ±726 |
| Utility gas | 8,886 | 35.3% | ±564 |
| No fuel used | 220 | 0.9% | ±109 |
| Bottled or tank gas (propane, butane, etc.) | 103 | 0.4% | ±69 |
| Coal or coke | 24 | 0.1% | ±24 |
| Solar energy | 22 | 0.1% | ±20 |
| Other fuel | 21 | 0.1% | ±29 |
| Wood | 6 | 0.0% | ±9 |
| Fuel oil, kerosene, etc. | 4 | 0.0% | ±7 |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 272 | 0.8% | ±111 |
| 2010 to 2019 | 3,521 | 9.8% | ±459 |
| 2000 to 2009 | 3,150 | 8.8% | ±409 |
| 1990 to 1999 | 1,984 | 5.5% | ±376 |
| 1980 to 1989 | 4,999 | 14.0% | ±536 |
| 1970 to 1979 | 5,798 | 16.2% | ±544 |
| 1960 to 1969 | 4,531 | 12.7% | ±525 |
| 1950 to 1959 | 2,971 | 8.3% | ±370 |
| 1940 to 1949 | 1,375 | 3.8% | ±251 |
| 1939 or earlier | 7,175 | 20.1% | ±500 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 35,776 |
| Detached single-family | 20,138 (56%) |
| Occupied homes | 25,198 |
| Owner-occupied | 11,654 (46%) |
| Renter-occupied | 13,544 (54%) |
| Median home value | $326,000 |
ACS 2020–2024 estimates.
| ZIP (ZCTA) | Share of Galveston's land | Share of the ZIP inside the city |
|---|---|---|
| 77554 | 72% | 95% |
| 77550 | 18% | 100% |
| 77551 | 10% | 100% |
| 77555 | 0% | 100% |
Dated heat and freeze records for the GALVESTON forecast zone: see the county list.
Common Galveston HVAC questions
Are heat pumps common in Galveston?
63% of Galveston homes heat with electricity[1], which means a heat pump or electric resistance heat.
How old are Galveston's homes — and their HVAC systems?
The median home dates to 1973, and 11% 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 Galveston ZIP codes are covered?
77554, 77550, 77551, and 77555[5], Galveston County. Nearby pages: Texas City (17.7 mi), League City (22.7 mi), and Friendswood (26.3 mi)[3].
A lot of Galveston homes predate 1980 — what does that mean for HVAC equipment work?
61% of Galveston's housing units were built before 1980, 32.2% before 1960[1] — the highest share of the 15 Houston-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 Galveston. Who arranges the repair?
54% of occupied Galveston homes are rented[1], the 2nd-highest share of the 15 Houston-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.