AC & heating repair · Northglenn, Colorado

AC repair and HVAC service in Northglenn, CO

AC quit, heat pump struggling, or a system near the end of its life? In Northglenn, 29% of homes heat with electricity^[1] and half were built before 1974. Request service from HVAC contractors working here. Northglenn, in Adams County and Weld County — ZIPs 80233, 80234, 80603, 80260, counts 38,893 residents (2025 estimate)^[2].

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Decision guide

Northglenn at a glance for HVAC

Population (2025 est.): 38,893^[2]+2.1% since 2020
County: Adams / Weld^[2]city spans more than one county
Land area: 7.4 sq mi^[3]
Population density: 5,284 / sq mi^[2]^[3]
Homes heated with electricity: 29%^[1]the 3rd-highest share of the 15 Denver-area suburbs we cover
Homes heated with utility gas: 67%^[1]plus 0% propane/LP
Lightning-damage reports within 10 mi: 2^[4]2016–2025; power surges damage HVAC control boards
Damaging-wind reports within 10 mi: 30^[4]2016–2025; wind-blown debris damages outdoor condenser units
Homes built before 2000: 79%^[1]of 14,914 housing units
Median year built: 1974^[1]the 2nd-oldest of the 15 Denver-area suburbs we cover

What Northglenn's numbers say about HVAC

Northglenn counts 38,893 residents (2025 estimate), growing at a middle-of-the-pack 2.1% since 2020^[2]. The city spans 7.4 square miles at 5,284 residents per square mile (the 2nd densest) and spans Adams County and Weld County, served by ZIP codes 80233, 80234, 80603, 80260^[3].

Only 6% of Northglenn's homes were built in 2010 or later, against 79% before 2000^[1] — most systems here are past any builder warranty, and older homes often keep their original ductwork.

4 ZIP codes cover Northglenn — 80233 (48% of the city's land), 80234 (25% of the city's land), 80603 (13% of the city's land), 80260 (11% of the city's land)^[5].

Nearest of the other suburbs we track: Thornton (2.2 mi E), Broomfield (4.7 mi NW) and Westminster (4.7 mi SW)^[3].

29% of occupied Northglenn homes heat with electricity, 67% with utility gas^[1] — the 3rd-highest electric share of the 15 Denver-area suburbs we cover; nearby, Thornton (28%), Broomfield (27%), and Westminster (29%) heat electrically. Gas heat means a furnace plus a separate AC condenser.

Storm exposure for HVAC hardware: 2 lightning-damage reports within 10 miles; 30 damaging-wind reports within 10 miles in 2016–2025^[4]. Most recent: Jul 10, 2025, 9.3 miles from the city center.

79% of Northglenn's 14,914 housing units were built before 2000 and 6% since 2010^[1] (pre-2000 share nearby: Thornton (55%), Broomfield (45%), and Westminster (76%)). Older homes often keep original ductwork.

Out of the 15 suburbs on this site, Northglenn has the lowest share of homes built since 2010 (6%)^[1], the 2nd-oldest housing (by median year built) (1974)^[1], the 3rd-highest electric-heat share (29%)^[1], and the 3rd-lowest gas-heat share (67%)^[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. 2 lightning-damage reports within 10 miles and 30 damaging-wind reports in 2016–2025.

Northglenn storm calendar

Within 10 miles of Northglenn, 2016–2025: 30 damaging-wind reports and 2 lightning reports^[4]. Peak: 97% in June, July, and August. Busiest year 2020 (14); 1 of 10 years had none. Busiest month June 2020 (13). Latest: damaging-wind report, Jul 10, 2025, 9.1 mi out.

Northglenn, 2016–2025
Month	Damaging wind	Lightning	All
May	1	–	1
Jun	14	1	15
Jul	13	1	14
Aug	2	–	2

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

Finding HVAC help around Northglenn

Your request reaches AC & heating repair contractors who serve Northglenn (ZIP codes 80233, 80234, 80603, 80260).

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The data underneath this Northglenn page

Northglenn against the typical suburb we cover (median of 15)^[1]^[4]
Measure	Northglenn	Median of 15	Difference
Propane / LP heat	0.4%	0.9%	1 pts lower
Built 2010 or later	6%	15%	9 pts lower
Electric heat	29%	26%	3 pts higher
Built before 2000	79%	71%	8 pts higher
Utility-gas heat	67%	71%	4 pts lower
Damaging-wind reports (10 mi)	30	31	1 fewer
Median year built	1974	1987	13 years older

Sorted by largest difference. Each median is the middle value across the covered Denver-area suburbs, from the same sources.

How Northglenn compares with its nearest neighbours^[4]^[3]
City	Lightning reports	Damaging-wind reports
Northglenn	2	30
Thornton 2.2 mi	1	33
Broomfield 4.7 mi	1	22
Westminster 4.7 mi	3	34
Commerce City 10.1 mi	0	38
Arvada 10.4 mi	2	21

Most recent damaging-wind reports within 10 miles^[4]
Date	Wind	Distance
Jul 10, 2025	59 mph	9.3 mi
Jul 10, 2025	58 mph	9.2 mi
Jul 10, 2025	58 mph	9.1 mi
Jul 8, 2025	49 mph (est.)	5.8 mi
Jul 8, 2025	58 mph (est.)	9.1 mi
Jun 17, 2025	60 mph (est.)	2.2 mi

Lightning-damage reports within 10 miles^[4]
Date	Distance
Jun 2, 2019	4.9 mi
Jul 19, 2016	9.3 mi

How Northglenn's 14,570 occupied homes are heated^[1]
Main heating fuel	Homes	Share	Margin of error
Utility gas	9,807	67.3%	±693
Electricity	4,263	29.3%	±603
No fuel used	255	1.8%	±344
Solar energy	94	0.6%	±79
Other fuel	79	0.5%	±122
Bottled or tank gas (propane, butane, etc.)	52	0.4%	±43
Wood	11	0.1%	±13
Fuel oil, kerosene, etc.	9	0.1%	±15

When Northglenn's 14,914 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	14	0.1%	±35
2010 to 2019	914	6.1%	±284
2000 to 2009	2,201	14.8%	±533
1990 to 1999	1,985	13.3%	±535
1980 to 1989	822	5.5%	±272
1970 to 1979	2,540	17.0%	±481
1960 to 1969	5,672	38.0%	±591
1950 to 1959	595	4.0%	±232
1940 to 1949	157	1.1%	±122
1939 or earlier	14	0.1%	±22

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

Northglenn housing and households^[1]
Measure	Value
Housing units	14,914
Detached single-family	8,659 (58%)
Occupied homes	14,570
Owner-occupied	8,823 (61%)
Renter-occupied	5,747 (39%)
Median home value	$462,100

ACS 2020–2024 estimates.

ZIP code areas covering Northglenn^[5]
ZIP (ZCTA)	Share of Northglenn's land	Share of the ZIP inside the city
80233	48%	39%
80234	25%	26%
80603	13%	1%
80260	11%	16%

Common Northglenn HVAC questions

Are heat pumps common in Northglenn?

29% of Northglenn homes heat with electricity^[1], which means a heat pump or electric resistance heat.

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

The median home dates to 1974, and 6% 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 Northglenn ZIP codes are covered?

80233, 80234, 80603, and 80260^[5], Adams County. Nearby pages: Thornton (2.2 mi), Broomfield (4.7 mi), and Westminster (4.7 mi)^[3].

A lot of Northglenn homes predate 1980 — what does that mean for HVAC equipment work?

60% of Northglenn's housing units were built before 1980, 5.1% before 1960^[1] — the 2nd-highest share of the 15 Denver-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 Northglenn. Who arranges the repair?

39% of occupied Northglenn homes are rented^[1], the 4th-highest share of the 15 Denver-area suburbs we cover. Tell your landlord or property manager in writing first; your lease says who arranges repairs.

Sources

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