AC & heating repair · Pasadena, Texas
AC repair and HVAC service in Pasadena, TX
AC quit, heat pump struggling, or a system near the end of its life? In Pasadena, 50% of homes heat with electricity[1] and half were built before 1977. Request service from HVAC contractors working here. Pasadena, in Harris County — ZIPs 77505, 77506, 77503, 77502, 77504, 77586, 77058, counts 148,539 residents (2025 estimate)[2].
Request helpIs this an AC or heating emergency?
Answer a few questions to see how fast you need help.
Pasadena at a glance for HVAC
- Population (2025 est.)
- 148,539[2]-2.2% since 2020
- County
- Harris[2]
- Land area
- 43.7 sq mi[3]
- Homes heated with electricity
- 50%[1]the 7th-highest share of the 15 Houston-area suburbs we cover
- Homes heated with utility gas
- 48%[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
- 7[4]2016–2025; power surges damage HVAC control boards
- Damaging-wind reports within 10 mi
- 43[4]2016–2025; wind-blown debris damages outdoor condenser units
- Homes built before 2000
- 83%[1]of 53,756 housing units
- Median year built
- 1977[1]the 2nd-oldest of the 15 Houston-area suburbs we cover
What the local data means for HVAC in Pasadena
Pasadena is one of the most established suburbs tracked here — 148,539 people (2025 estimate), down just 2.2% since 2020[2]. The city spans 43.7 square miles at 3,400 residents per square mile (the 1st densest) and sits entirely in Harris County, served by ZIP codes 77505, 77506, 77503, 77502, 77504, 77586, 77058[3].
Only 7% of Pasadena's homes were built in 2010 or later, against 83% before 2000[1] — most systems here are past any builder warranty, and older homes often keep their original ductwork.
Mail to Pasadena goes through 7 ZIP codes — 77505 (19% of the city's land), 77506 (17% of the city's land), 77503 (14% of the city's land), 77502 (13% of the city's land), 77504 (11% of the city's land), 77586 (7% of the city's land), 77058 (6% of the city's land)[5].
Nearest of the other suburbs we track: La Porte (6.2 mi E), Friendswood (10.6 mi S) and League City (11.7 mi S)[3].
50% of occupied Pasadena homes heat with electricity, 48% with utility gas[1] — the 7th-highest electric share of the 15 Houston-area suburbs we cover; nearby, La Porte (47%), Friendswood (43%), and League City (41%) heat electrically. Electric heat usually means one outdoor unit doing both jobs.
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: La Porte (1), Friendswood (0), and League City (0).
Storm exposure for HVAC hardware: 7 lightning-damage reports within 10 miles; 43 damaging-wind reports within 10 miles in 2016–2025[4]. Most recent: Oct 25, 2025, 7.9 miles from the city center.
83% of Pasadena's 53,756 housing units were built before 2000 and 7% since 2010[1] (pre-2000 share nearby: La Porte (75%), Friendswood (67%), and League City (42%)). Older homes often keep original ductwork.
Measured against the 15 suburbs on this site, Pasadena records the lowest share of homes built since 2010 (7%)[1], the most damaging-wind reports nearby (43)[4], and the 2nd-oldest housing (by median year built) (1977)[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.
Pasadena storm calendar
Within 10 miles of Pasadena, 2016–2025: 43 damaging-wind reports and 7 lightning reports[4]. Peak: spread out; January, May, and October held 52%. Busiest year 2018 (11). Busiest month May 2024 (7). Latest: damaging-wind report, Oct 25, 2025, 7.9 mi out.
| Month | Damaging wind | Lightning | All |
|---|---|---|---|
| Jan | 6 | – | 6 |
| Feb | 1 | – | 1 |
| Mar | 5 | – | 5 |
| Apr | 5 | – | 5 |
| May | 8 | 1 | 9 |
| Jun | 4 | – | 4 |
| Jul | 3 | 1 | 4 |
| Aug | 1 | 1 | 2 |
| Sep | 1 | 1 | 2 |
| Oct | 8 | 3 | 11 |
| Dec | 1 | – | 1 |
HVAC help in Pasadena: what to do next
AC & heating repair contractors taking requests around Pasadena cover ZIP codes 77505, 77506, 77503, 77502, 77504, 77586, 77058.
Before you call: repair or replace? what a good hvac visit covers
The Pasadena numbers behind this page
| Measure | Pasadena | Median of 15 | Difference |
|---|---|---|---|
| Damaging-wind reports (10 mi) | 43 | 26 | 17 more |
| Built 2010 or later | 7% | 19% | 12 pts lower |
| Built before 2000 | 83% | 66% | 17 pts higher |
| Utility-gas heat | 48% | 50% | 1 pts lower |
| Electric heat | 50% | 49% | 1 pts higher |
| Median year built | 1977 | 1993 | 16 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 |
|---|---|---|---|---|
| Pasadena | 1 | 4 | 7 | 43 |
| La Porte 6.2 mi | 1 | 4 | 3 | 29 |
| Friendswood 10.6 mi | 0 | 1 | 12 | 35 |
| League City 11.7 mi | 0 | 1 | 11 | 38 |
| Pearland 12.4 mi | 0 | 1 | 5 | 38 |
| Baytown 13.4 mi | 1 | 4 | 1 | 17 |
| Date | Wind | Distance |
|---|---|---|
| Oct 25, 2025 | 63 mph | 7.9 mi |
| Mar 24, 2025 | 58 mph | 8.6 mi |
| Mar 24, 2025 | 61 mph | 7.8 mi |
| May 28, 2024 | 59 mph (est.) | 6.7 mi |
| May 28, 2024 | 60 mph | 7.6 mi |
| May 16, 2024 | 63 mph | 4.2 mi |
| Date | Distance |
|---|---|
| Oct 13, 2022 | 9.3 mi |
| May 18, 2021 | 9.2 mi |
| Aug 14, 2019 | 5.9 mi |
| Jul 30, 2019 | 7.5 mi |
| Oct 22, 2018 | 8.9 mi |
| Oct 20, 2017 | 4.5 mi |
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Electricity | 24,961 | 50.4% | ±1,233 |
| Utility gas | 23,886 | 48.2% | ±1,109 |
| Bottled or tank gas (propane, butane, etc.) | 474 | 1.0% | ±187 |
| No fuel used | 139 | 0.3% | ±85 |
| Fuel oil, kerosene, etc. | 47 | 0.1% | ±52 |
| Wood | 30 | 0.1% | ±30 |
| Other fuel | 23 | 0.0% | ±27 |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 712 | 1.3% | ±202 |
| 2010 to 2019 | 2,942 | 5.5% | ±457 |
| 2000 to 2009 | 5,440 | 10.1% | ±556 |
| 1990 to 1999 | 6,918 | 12.9% | ±731 |
| 1980 to 1989 | 7,286 | 13.6% | ±721 |
| 1970 to 1979 | 10,770 | 20.0% | ±988 |
| 1960 to 1969 | 7,103 | 13.2% | ±676 |
| 1950 to 1959 | 9,341 | 17.4% | ±726 |
| 1940 to 1949 | 2,598 | 4.8% | ±462 |
| 1939 or earlier | 646 | 1.2% | ±181 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 53,756 |
| Detached single-family | 31,326 (58%) |
| Occupied homes | 49,560 |
| Owner-occupied | 26,999 (54%) |
| Renter-occupied | 22,561 (46%) |
| Median home value | $209,600 |
ACS 2020–2024 estimates.
| ZIP (ZCTA) | Share of Pasadena's land | Share of the ZIP inside the city |
|---|---|---|
| 77505 | 19% | 98% |
| 77506 | 17% | 66% |
| 77503 | 14% | 97% |
| 77502 | 13% | 100% |
| 77504 | 11% | 84% |
| 77586 | 7% | 26% |
| 77058 | 6% | 29% |
Dated heat and freeze records for the HARRIS forecast zone: see the county list.
Common Pasadena HVAC questions
Are heat pumps common in Pasadena?
50% of Pasadena homes heat with electricity[1], which means a heat pump or electric resistance heat.
How old are Pasadena's homes — and their HVAC systems?
The median home dates to 1977, and 7% 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 Pasadena ZIP codes are covered?
77505, 77506, 77503, 77502, 77504, 77586, and 77058[5], Harris County. Nearby pages: La Porte (6.2 mi), Friendswood (10.6 mi), and League City (11.7 mi)[3].
A lot of Pasadena homes predate 1980 — what does that mean for HVAC equipment work?
57% of Pasadena's housing units were built before 1980, 23.4% before 1960[1] — the 2nd-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.
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.