AC & heating repair · Alpharetta, Georgia
AC repair and HVAC service in Alpharetta, GA
AC quit, heat pump struggling, or a system near the end of its life? In Alpharetta, 37% of homes heat with electricity[1] and half were built before 1996. Request service from HVAC contractors working here. Alpharetta, in Fulton County — ZIPs 30005, 30009, 30022, 30004, counts 66,921 residents (2025 estimate)[2].
Request helpIs this an AC or heating emergency?
Answer a few questions to see how fast you need help.
Alpharetta at a glance for HVAC
- Population (2025 est.)
- 66,921[2]+1.7% since 2020
- County
- Fulton[2]
- Land area
- 26.9 sq mi[3]
- Homes heated with electricity
- 37%[1]the 8th-highest share of the 15 Atlanta-area suburbs we cover
- Homes heated with utility gas
- 60%[1]plus 2% propane/LP
- Lightning-damage reports within 10 mi
- 3[4]2016–2025; power surges damage HVAC control boards
- Damaging-wind reports within 10 mi
- 83[4]2016–2025; wind-blown debris damages outdoor condenser units
- Homes built before 2000
- 64%[1]of 26,223 housing units
- Median year built
- 1996[1]the 6th-newest of the 15 Atlanta-area suburbs we cover
What Alpharetta's numbers say about HVAC
Alpharetta counts 66,921 residents (2025 estimate), growing at a middle-of-the-pack 1.7% since 2020[2]. It covers 26.9 square miles (2,488 residents per square mile, the 9th densest), sits entirely in Fulton County, in ZIP codes 30005, 30009, 30022, 30004[3].
Only 16% of Alpharetta's homes were built in 2010 or later, against 64% before 2000[1] — most systems here are past any builder warranty, and older homes often keep their original ductwork.
4 ZIP codes cover Alpharetta — 30005 (32% of the city's land), 30009 (27% of the city's land), 30022 (24% of the city's land), 30004 (15% of the city's land)[5].
The tracked suburbs closest by are Johns Creek (4.7 mi SE), Roswell (5.0 mi SW) and Milton (5.6 mi NW)[3].
37% of occupied Alpharetta homes heat with electricity, 60% with utility gas and 2% with propane[1] — the 8th-highest electric share of the 15 Atlanta-area suburbs we cover; nearby, Johns Creek (23%), Roswell (27%), and Milton (34%) heat electrically. Gas heat means a furnace plus a separate AC condenser.
Storm exposure for HVAC hardware: 3 lightning-damage reports within 10 miles; 83 damaging-wind reports within 10 miles in 2016–2025[4]. Most recent: Nov 25, 2025, 2.1 miles from the city center.
64% of Alpharetta's 26,223 housing units were built before 2000 and 16% since 2010[1] (pre-2000 share nearby: Johns Creek (72%), Roswell (75%), and Milton (42%)). Older homes often keep original ductwork.
Among the 15 suburbs tracked here, Alpharetta stands out for the 3rd-fewest damaging-wind reports nearby (83)[4].
How air moves through a central system
Air path: return duct, filter, air handler, supply ducts — one clogged filter drags the whole loop down.
Alpharetta storm calendar
Within 10 miles of Alpharetta, 2016–2025: 83 damaging-wind reports and 3 lightning reports[4]. Peak: spread out; June, July, and August held 59%. Busiest year 2024 (20). Busiest month December 2024 (8). Latest: damaging-wind report, Nov 25, 2025, 2.1 mi out.
| Month | Damaging wind | Lightning | All |
|---|---|---|---|
| Jan | 2 | – | 2 |
| Feb | 6 | – | 6 |
| Mar | 5 | – | 5 |
| Apr | 6 | – | 6 |
| May | 4 | – | 4 |
| Jun | 18 | – | 18 |
| Jul | 19 | 3 | 22 |
| Aug | 11 | – | 11 |
| Oct | 1 | – | 1 |
| Nov | 3 | – | 3 |
| Dec | 8 | – | 8 |
Finding HVAC help around Alpharetta
Requests go to AC & heating repair contractors serving the Alpharetta area — ZIP codes 30005, 30009, 30022, 30004.
Before reaching out: repair or replace? what a good hvac visit covers
Alpharetta by the numbers
| Measure | Alpharetta | Median of 15 | Difference |
|---|---|---|---|
| Propane / LP heat | 2.2% | 1.2% | 1 pts higher |
| Built 2010 or later | 16% | 14% | 3 pts higher |
| Damaging-wind reports (10 mi) | 83 | 100 | 17 fewer |
| Built before 2000 | 64% | 66% | 1 pts lower |
| Utility-gas heat | 60% | 61% | about the same |
| Median year built | 1996 | 1994 | 2 years newer |
| Electric heat | 37% | 37% | same as median |
Largest differences first. Medians are the middle value across the covered Atlanta-area suburbs, from the same sources.
| City | Lightning reports | Damaging-wind reports |
|---|---|---|
| Alpharetta | 3 | 83 |
| Johns Creek 4.7 mi | 7 | 92 |
| Roswell 5.0 mi | 2 | 100 |
| Milton 5.6 mi | 3 | 82 |
| Duluth 8.5 mi | 8 | 95 |
| Dunwoody 9.2 mi | 2 | 132 |
| Date | Wind | Distance |
|---|---|---|
| Nov 25, 2025 | 45 mph (est.) | 2.1 mi |
| Jul 18, 2025 | 60 mph (est.) | 9.3 mi |
| Jun 26, 2025 | 69 mph (est.) | 6.0 mi |
| Jun 26, 2025 | 58 mph (est.) | 9.1 mi |
| Jun 17, 2025 | 60 mph (est.) | 7.7 mi |
| Jun 17, 2025 | 55 mph (est.) | 8.5 mi |
| Date | Distance |
|---|---|
| Jul 14, 2017 | 6.8 mi |
| Jul 13, 2017 | 4.5 mi |
| Jul 6, 2017 | 9.4 mi |
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Utility gas | 15,090 | 60.3% | ±1,023 |
| Electricity | 9,138 | 36.5% | ±768 |
| Bottled or tank gas (propane, butane, etc.) | 551 | 2.2% | ±293 |
| Solar energy | 129 | 0.5% | ±103 |
| No fuel used | 52 | 0.2% | ±46 |
| Wood | 49 | 0.2% | ±51 |
| Fuel oil, kerosene, etc. | 16 | 0.1% | ±25 |
| Coal or coke | 7 | 0.0% | ±12 |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 685 | 2.6% | ±203 |
| 2010 to 2019 | 3,531 | 13.5% | ±519 |
| 2000 to 2009 | 5,129 | 19.6% | ±584 |
| 1990 to 1999 | 9,081 | 34.6% | ±822 |
| 1980 to 1989 | 5,756 | 22.0% | ±570 |
| 1970 to 1979 | 1,000 | 3.8% | ±277 |
| 1960 to 1969 | 654 | 2.5% | ±185 |
| 1950 to 1959 | 105 | 0.4% | ±72 |
| 1940 to 1949 | 103 | 0.4% | ±76 |
| 1939 or earlier | 179 | 0.7% | ±97 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 26,223 |
| Detached single-family | 14,553 (55%) |
| Occupied homes | 25,032 |
| Owner-occupied | 16,295 (65%) |
| Renter-occupied | 8,737 (35%) |
| Median home value | $649,000 |
ACS 2020–2024 estimates.
| ZIP (ZCTA) | Share of Alpharetta's land | Share of the ZIP inside the city |
|---|---|---|
| 30005 | 32% | 54% |
| 30009 | 27% | 80% |
| 30022 | 24% | 27% |
| 30004 | 15% | 7% |
Common Alpharetta HVAC questions
Are heat pumps common in Alpharetta?
37% of Alpharetta homes heat with electricity[1], which means a heat pump or electric resistance heat.
How old are Alpharetta's homes — and their HVAC systems?
The median home dates to 1996, and 16% 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 Alpharetta ZIP codes are covered?
30005, 30009, 30022, and 30004[5], Fulton County. Nearby pages: Johns Creek (4.7 mi), Roswell (5.0 mi), and Milton (5.6 mi)[3].
My Alpharetta home is fairly new — could the HVAC equipment still be under warranty?
Possibly: 16% of Alpharetta's housing units were built in 2010 or later[1], the 5th-highest share of the 15 Atlanta-area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.
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.