AC & heating repair · Katy, Texas

AC repair and HVAC service in Katy, TX

AC quit, heat pump struggling, or a system near the end of its life? In Katy, 35% of homes heat with electricity^[1] and half were built before 2003. Request service from HVAC contractors working here. Katy, in Harris County and Fort Bend County and Waller County — ZIPs 77493, 77494, counts 28,373 residents (2025 estimate)^[2].

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The Katy HVAC picture in brief

Population (2025 est.): 28,373^[2]+29.7% since 2020
County: Harris / Fort Bend / Waller^[2]city spans more than one county
Land area: 15.3 sq mi^[3]
Population density: 1,856 / sq mi^[2]^[3]
Homes heated with electricity: 35%^[1]the 3rd-lowest share of the 15 Houston-area suburbs we cover
Homes heated with utility gas: 63%^[1]plus 2% 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: 2^[4]2016–2025; power surges damage HVAC control boards
Damaging-wind reports within 10 mi: 17^[4]2016–2025; wind-blown debris damages outdoor condenser units
Homes built before 2000: 46%^[1]of 8,495 housing units
Median year built: 2003^[1]the 2nd-newest of the 15 Houston-area suburbs we cover

What Katy's numbers say about HVAC

Katy is one of the fastest-growing Houston-metro suburbs tracked here: 28,373 people (2025 estimate), up 29.7% since 2020^[2]. The city spans 15.3 square miles at 1,856 residents per square mile (the 9th densest) and spans Harris County and Fort Bend County and Waller County, served by ZIP codes 77493, 77494^[3].

With 40% of homes built in 2010 or later^[1], a good share of Katy's equipment may still be under builder or manufacturer warranty; the 46% built before 2000 is where replacement jobs cluster.

Mail to Katy goes through 2 ZIP codes — 77493 (52% of the city's land), 77494 (47% of the city's land)^[5].

The tracked suburbs closest by are Rosenberg (16.7 mi S), Sugar Land (18.5 mi SE) and Missouri City (24.1 mi SE)^[3].

35% of occupied Katy homes heat with electricity, 63% with utility gas and 2% with propane^[1] — the 3rd-lowest electric share of the 15 Houston-area suburbs we cover; nearby, Rosenberg (56%), Sugar Land (29%), and Missouri City (39%) 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: Rosenberg (7), Sugar Land (7), and Missouri City (7).

Storm exposure for HVAC hardware: 2 lightning-damage reports within 10 miles; 17 damaging-wind reports within 10 miles in 2016–2025^[4]. Most recent: May 16, 2024, 1.2 miles from the city center.

46% of Katy's 8,495 housing units were built before 2000 and 40% since 2010^[1] (pre-2000 share nearby: Rosenberg (54%), Sugar Land (70%), and Missouri City (63%)). Check builder-installed equipment for a registered warranty.

Among the 15 suburbs tracked here, Katy stands out for the 2nd-newest housing (by median year built) (2003, tied with Pearland and League City)^[1], the 2nd-highest share of homes built since 2010 (40%)^[1], the 3rd-lowest electric-heat share (35%)^[1], and the 3rd-highest gas-heat share (63%)^[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.

Illustration, not to scale. The local workload: 1 heat or excessive-heat day and 4 winter-storm or freeze days in 2016–2025 — filters, coils and capacitors age faster under long cooling seasons. 2 lightning-damage reports within 10 miles and 17 damaging-wind reports over the same span.

Katy storm calendar

Within 10 miles of Katy, 2016–2025: 17 damaging-wind reports and 2 lightning reports^[4]. Peak: 84% in January, May, and August. Busiest year 2021 (5); 4 of 10 years had none. Busiest month May 2021 (5). Latest: damaging-wind report, May 16, 2024, 9.0 mi out.

Katy, 2016–2025
Month	Damaging wind	Lightning	All
Jan	2	–	2
Mar	1	–	1
Apr	1	–	1
May	9	–	9
Aug	4	1	5
Sep	–	1	1

Darker squares, more reports. NOAA Storm Events Database^[4].

Finding HVAC help around Katy

Your request reaches AC & heating repair contractors who serve Katy (ZIP codes 77493, 77494).

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Katy by the numbers

Katy next to the typical covered suburb (median of 15)^[1]^[4]
Measure	Katy	Median of 15	Difference
Built 2010 or later	40%	19%	21 pts higher
Propane / LP heat	1.7%	1.0%	1 pts higher
Damaging-wind reports (10 mi)	17	26	9 fewer
Built before 2000	46%	66%	20 pts lower
Electric heat	35%	49%	15 pts lower
Utility-gas heat	63%	50%	13 pts higher
Median year built	2003	1993	10 years newer

Largest differences first. Medians are the middle value across the covered Houston-area suburbs, from the same sources.

Katy beside its nearest neighbours^[4]^[3]
City	Heat days	Freeze days	Lightning reports	Damaging-wind reports
Katy	1	4	2	17
Rosenberg 16.7 mi	7	4	2	9
Sugar Land 18.5 mi	7	4	6	14
Missouri City 24.1 mi	7	4	5	20
Tomball 24.8 mi	1	4	7	26
Pearland 35.1 mi	0	1	5	38

Most recent damaging-wind reports within 10 miles^[4]
Date	Wind	Distance
May 16, 2024	81 mph (est.)	1.2 mi
May 16, 2024	104 mph (est.)	9.0 mi
Apr 10, 2024	59 mph	5.2 mi
Aug 10, 2022	60 mph (est.)	1.8 mi
Aug 10, 2022	58 mph	3.8 mi
Aug 10, 2022	60 mph (est.)	1.4 mi

Lightning-damage reports within 10 miles^[4]
Date	Distance
Aug 10, 2022	4.8 mi
Sep 5, 2018	8.7 mi

How Katy's 7,942 occupied homes are heated^[1]
Main heating fuel	Homes	Share	Margin of error
Utility gas	4,995	62.9%	±555
Electricity	2,766	34.8%	±488
Bottled or tank gas (propane, butane, etc.)	135	1.7%	±146
No fuel used	46	0.6%	±61

When Katy's 8,495 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	932	11.0%	±325
2010 to 2019	2,503	29.5%	±401
2000 to 2009	1,152	13.6%	±299
1990 to 1999	1,302	15.3%	±430
1980 to 1989	869	10.2%	±294
1970 to 1979	993	11.7%	±273
1960 to 1969	376	4.4%	±140
1950 to 1959	274	3.2%	±204
1940 to 1949	46	0.5%	±63
1939 or earlier	48	0.6%	±52

ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.

Katy housing and households^[1]
Measure	Value
Housing units	8,495
Detached single-family	7,228 (85%)
Occupied homes	7,942
Owner-occupied	6,412 (81%)
Renter-occupied	1,530 (19%)
Median home value	$401,700

ACS 2020–2024 estimates.

ZIP code areas covering Katy^[5]
ZIP (ZCTA)	Share of Katy's land	Share of the ZIP inside the city
77493	52%	12%
77494	47%	18%

Dated heat and freeze records for the HARRIS forecast zone: see the county list.

Common Katy HVAC questions

Are heat pumps common in Katy?

35% of Katy homes heat with electricity^[1], which means a heat pump or electric resistance heat.

How old are Katy's homes — and their HVAC systems?

The median home dates to 2003, and 40% 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 Katy ZIP codes are covered?

77493 and 77494^[5], Harris County. Nearby pages: Rosenberg (16.7 mi), Sugar Land (18.5 mi), and Missouri City (24.1 mi)^[3].

My Katy home is fairly new — could the HVAC equipment still be under warranty?

Possibly: 40% of Katy's housing units were built in 2010 or later^[1], the 2nd-highest share of the 15 Houston-area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.

Sources

Data pulled Sep 28, 2026. Full citations and method.