Plumbing repair · Katy, Texas

Plumbing repair in Katy, TX

Leak, backed-up drain, no hot water, or a frozen line? The largest share of Katy's homes (29%) was built 2010 to 2019^[1]. Request a licensed plumber who works 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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Katy plumbing snapshot: the key figures

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]
Decade the most homes date from: 2010 to 2019^[1]29% of housing units
Homes built before 1980: 20%^[1]the 5th-lowest share of the 15 Houston-area suburbs we cover
Homes built 1980–1999: 26%^[1]2020–2024
Homes built 2010 or later: 40%^[1]the 2nd-highest share of the 15 Houston-area suburbs we cover
Winter-storm & freeze days, harris zone: 4^[4]2016–2025
Flood & flash-flood reports within 10 mi: 8^[4]8 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
FEMA flood-insurance claims, local ZIPs: 940^[5]857 in the last 10 years; 774 paid
Homes on utility gas heat: 63%^[1]^[6]gas piping is plumber-licensed work in Texas

Reading the Katy data for plumbing

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 since 2010 and 20% before 1980^[1], Katy's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.

Katy is split across 2 ZIP codes: 77493 (52% of the city's land), 77494 (47% of the city's land)^[7].

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

20% of Katy's 8,495 housing units predate 1980 and 40% went up in 2010 or later^[1] — the 5th-lowest pre-1980 share of the 15 Houston-area suburbs we cover; nearby, Rosenberg (28%), Sugar Land (13%), and Missouri City (26%) predate 1980. New-construction problems are usually fittings, supply lines, water-heater installs and drain slopes, not worn-out pipe.

The biggest single slice — 29% — was built 2010 to 2019, and the median home dates to 2003^[1]. Neighbours from the same era tend to hit the same plumbing problems at the same time.

Freeze risk: the harris forecast zone logged 4 winter-storm, ice or hard-freeze days in 2016–2025; the latest was Jan 17, 2018^[4].

Water from the sky is plumbing work too: 8 flood or flash-flood reports within 10 miles over 2016–2025^[4], and FEMA logged 940 flood-insurance claims across Katy's ZIPs^[5]. Homes that take water need working drainage, sump pumps and backflow prevention.

63% of homes heat with utility gas, and 19% of households rent^[1].

Measured against the 15 suburbs on this site, Katy records 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 2nd-fewest flood reports nearby (8, tied with Conroe and Rosenberg)^[4], and the 2nd-lowest renter share (19%)^[1].

Katy storm calendar

Within 10 miles of Katy, 2016–2025: 8 flash-flood reports^[4]. Peak: 88% in May, June, and August. Busiest year 2020 (3); 6 of 10 years had none. Busiest month June 2020 (3). Latest: flash-flood report, Oct 1, 2021, 6.9 mi out.

Katy, 2016–2025
Month	Flash flood	Flood & heavy rain	All
May	2	–	2
Jun	3	–	3
Aug	2	–	2
Oct	1	–	1

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

Finding plumbing help around Katy

Requests go to Plumbing repair contractors serving the Katy area — ZIP codes 77493, 77494.

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Before you pick up the phone: before the plumber arrives

The Katy numbers behind this page

How Katy stacks up against the median suburb we cover (median of 15)^[1]^[4]
Measure	Katy	Median of 15	Difference
Built 2010 or later	40%	19%	21 pts higher
Renter-occupied	19%	43%	24 pts lower
Built before 1960	4.3%	9.7%	5 pts lower
Flood reports (10 mi)	8	15	7 fewer
Built before 1980	20%	28%	8 pts lower
Utility-gas heat	63%	50%	13 pts higher
Median year built	2003	1993	10 years newer

Biggest gaps first. Medians are middle values across the Houston-area suburbs we cover, drawn from the same sources.

Katy and nearby suburbs, side by side^[4]^[5]^[3]
City	Flood reports	NFIP claims	Freeze days
Katy	8	940	4
Rosenberg 16.7 mi	8	770	4
Sugar Land 18.5 mi	15	1,141	4
Missouri City 24.1 mi	15	1,341	4
Tomball 24.8 mi	9	1,049	4
Pearland 35.1 mi	17	5,580	1

Flood-insurance claims by ZIP code, since 1981^[5]
ZIP	Claims	Paid	Busiest year
77493	674	$56,720,951	2017 (461)
77494	266	$25,205,467	2017 (192)

ZIPs extend past city limits.

Most recent flood reports within 10 miles^[4]
Date	Type	Distance
Oct 1, 2021	Flash Flood	6.9 mi
May 1, 2021	Flash Flood	7.1 mi
Jun 25, 2020	Flash Flood	1.2 mi
Jun 25, 2020	Flash Flood	1.6 mi
Jun 25, 2020	Flash Flood	1.6 mi
May 9, 2019	Flash Flood	7.4 mi
Aug 28, 2017	Flash Flood	5.9 mi
Aug 26, 2017	Flash Flood	7.2 mi

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.

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

ZIP code areas covering Katy^[7]
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.

plumbing questions from Katy homeowners

Are Katy homes likely to have old galvanized pipes?

Only an inspection can say, but age is the clue: 4% were built before 1960 and 20% before 1980^[1].

How often do pipes freeze in Katy?

The record for Katy's forecast zone shows 4 winter-storm or freeze days over 2016–2025, in 2 different years^[4].

Which ZIP codes are covered in Katy?

77493 and 77494^[7], in Harris County. Nearby suburbs with their own 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 plumbing and water heater 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.