Plumbing repair · Westminster, Colorado

Plumbing repair in Westminster, CO

Leak, backed-up drain, no hot water, or a frozen line? The largest share of Westminster's homes (23%) was built 1980 to 1989^[1]. Request a licensed plumber who works here. Westminster, in Adams County and Jefferson County — ZIPs 80021, 80031, 80234, 80030, counts 116,182 residents (2025 estimate)^[2].

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Decision guide

The Westminster plumbing picture in brief

Population (2025 est.): 116,182^[2]-0.4% since 2020
County: Adams / Jefferson^[2]city spans more than one county
Land area: 31.6 sq mi^[3]
Population density: 3,673 / sq mi^[2]^[3]
Decade the most homes date from: 1980 to 1989^[1]23% of housing units
Homes built before 1980: 34%^[1]the 7th-lowest share of the 15 Denver-area suburbs we cover
Homes built 1980–1999: 42%^[1]2020–2024
Homes built 2010 or later: 12%^[1]the 5th-lowest share of the 15 Denver-area suburbs we cover
Flood & flash-flood reports within 10 mi: 14^[4]11 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
FEMA flood-insurance claims, local ZIPs: 45^[5]4 in the last 10 years; 24 paid
Homes on utility gas heat: 69%^[1]gas piping work usually needs a permit and a licensed installer

Reading the Westminster data for plumbing

Westminster is one of the most established suburbs tracked here — 116,182 people (2025 estimate), down just 0.4% since 2020^[2]. The city spans 31.6 square miles at 3,673 residents per square mile (the 4th densest) and spans Adams County and Jefferson County, served by ZIP codes 80021, 80031, 80234, 80030^[3].

With 12% of homes built since 2010 and 34% before 1980^[1], Westminster's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.

Westminster is split across 4 ZIP codes: 80021 (25% of the city's land), 80031 (24% of the city's land), 80234 (16% of the city's land), 80030 (8% of the city's land)^[6].

The closest tracked neighbours are Northglenn (4.7 mi NE), Broomfield (5.1 mi N) and Arvada (5.7 mi SW)^[3].

34% of Westminster's 50,471 housing units predate 1980 and 12% went up in 2010 or later^[1] — the 7th-lowest pre-1980 share of the 15 Denver-area suburbs we cover; nearby, Northglenn (60%), Broomfield (21%), and Arvada (53%) predate 1980. The 42% built in 1980–1999 are at the age where original water heaters and valves get replaced.

The biggest single slice — 23% — was built 1980 to 1989, and the median home dates to 1987^[1]. Neighbours from the same era tend to hit the same plumbing problems at the same time.

Water from the sky is plumbing work too: 14 flood or flash-flood reports within 10 miles over 2016–2025^[4], and FEMA logged 45 flood-insurance claims across Westminster's ZIPs^[5]. Homes that take water need working drainage, sump pumps and backflow prevention.

69% of homes heat with utility gas, and 38% of households rent^[1]. Tenants: report plumbing failures to the landlord in writing.

Measured against the 15 suburbs on this site, Westminster records the most flood reports nearby (14)^[4].

Westminster storm calendar

Within 10 miles of Westminster, 2016–2025: 11 flash-flood reports and 3 flood or heavy-rain reports^[4]. Peak: 86% in June, July, and August. Busiest year 2023 (5); 3 of 10 years had none. Busiest month June 2023 (3). Latest: flood or heavy-rain report, Jun 25, 2025, 7.4 mi out.

Westminster, 2016–2025
Month	Flash flood	Flood & heavy rain	All
May	–	2	2
Jun	3	1	4
Jul	4	–	4
Aug	4	–	4

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

plumbing help in Westminster: what to do next

Plumbing repair contractors taking requests around Westminster cover ZIP codes 80021, 80031, 80234, 80030.

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Before reaching out: before the plumber arrives

The data underneath this Westminster page

How Westminster stacks up against the median suburb we cover (median of 15)^[4]^[1]
Measure	Westminster	Median of 15	Difference
Flood reports (10 mi)	14	6	8 more
Built 2010 or later	12%	15%	3 pts lower
Built before 1980	34%	37%	3 pts lower
Utility-gas heat	69%	71%	2 pts lower
Renter-occupied	38%	37%	1 pts higher
Built before 1960	7.6%	7.6%	same as median
Median year built	1987	1987	same as median

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

Westminster and nearby suburbs, side by side^[4]^[5]^[3]
City	Flood reports	NFIP claims
Westminster	14	45
Northglenn 4.7 mi	11	19
Broomfield 5.1 mi	6	57
Arvada 5.7 mi	12	103
Thornton 6.9 mi	7	34
Golden 12.4 mi	3	46

Flood-insurance claims by ZIP code, since 1980^[5]
ZIP	Claims	Paid	Busiest year
80021	8	$1,041	2001 (3)
80031	8	$19,526	2011 (3)
80234	2	$0	2005 (1)
80030	27	$244,499	1982 (7)

ZIPs extend past city limits.

Most recent flood reports within 10 miles^[4]
Date	Type	Distance
Jun 25, 2025	Flood	7.4 mi
Jul 20, 2024	Flash Flood	7.9 mi
Jun 29, 2023	Flash Flood	8.4 mi
Jun 29, 2023	Flash Flood	9.3 mi
Jun 29, 2023	Flash Flood	6.8 mi
May 11, 2023	Flood	9.9 mi
May 11, 2023	Flood	9.9 mi
Aug 16, 2022	Flash Flood	3.1 mi

When Westminster's 50,471 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	791	1.6%	±232
2010 to 2019	5,325	10.6%	±506
2000 to 2009	5,919	11.7%	±707
1990 to 1999	10,024	19.9%	±808
1980 to 1989	11,408	22.6%	±722
1970 to 1979	10,624	21.0%	±763
1960 to 1969	2,540	5.0%	±337
1950 to 1959	3,126	6.2%	±468
1940 to 1949	319	0.6%	±138
1939 or earlier	395	0.8%	±230

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

Westminster housing and households^[1]
Measure	Value
Housing units	50,471
Detached single-family	27,484 (54%)
Occupied homes	48,106
Owner-occupied	29,786 (62%)
Renter-occupied	18,320 (38%)
Median home value	$532,400

ACS 2020–2024 estimates.

How Westminster's 48,106 occupied homes are heated^[1]
Main heating fuel	Homes	Share	Margin of error
Utility gas	33,178	69.0%	±1,065
Electricity	13,733	28.5%	±993
Bottled or tank gas (propane, butane, etc.)	477	1.0%	±174
No fuel used	305	0.6%	±140
Other fuel	160	0.3%	±103
Wood	131	0.3%	±138
Solar energy	107	0.2%	±83
Fuel oil, kerosene, etc.	15	0.0%	±24

ZIP code areas covering Westminster^[6]
ZIP (ZCTA)	Share of Westminster's land	Share of the ZIP inside the city
80021	25%	48%
80031	24%	91%
80234	16%	71%
80030	8%	97%

Common Westminster plumbing questions

Are Westminster homes likely to have old galvanized pipes?

Only an inspection can say, but age is the clue: 8% were built before 1960 and 34% before 1980^[1].

Which ZIP codes are covered in Westminster?

80021, 80031, 80234, and 80030^[6], in Adams County. Nearby suburbs with their own pages: Northglenn (4.7 mi), Broomfield (5.1 mi), and Arvada (5.7 mi)^[3].

Sources

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