Heating and air conditioning repair in Tucson
Our guide to heating and air conditioning repair covers how the job works. Below: the Tucson numbers a HVAC contractor looks at, with sources.
Homes in Tucson
The median home in Tucson dates from 1979, so about half the housing is that old or older. Of the 56 other cities in this network, 19 have newer housing by median year built. Age of the house is a clue to duct leaks and insulation, which change the right system size.
Source: Census ACS
Source: Census ACS
About 52% of occupied homes in Tucson are lived in by their owners. That is 118,217 of 228,020 households. The share of owner-occupied homes here is higher than in 36 of the 56 other cities we cover. Owners usually decide on a replacement; renters should start with the landlord or property manager.
Source: Census ACS
Source: Census ACS
Electricity heats about 49% of occupied homes in Tucson, the most common fuel there. Other fuels: utility gas 48%, bottled or tank gas 1%, fuel oil or kerosene under 1%. Homes on that fuel need a contractor licensed and equipped for it.
Source: Census ACS
Source: Census ACS
Heating and cooling load in Tucson
Tucson averages about 3,424 cooling degree days a year, the NOAA measure of how hard air conditioning works. Measured at the Tucson Intl Ap (AZ) station. The cooling load here is higher than in 53 of the 56 other cities we cover. More cooling degree days means more run hours, which is where worn capacitors and dirty coils show up first.
Source: NOAA normals
Source: NOAA normals
Winter heating load in Tucson runs to roughly 1,332 heating degree days in a normal year (NOAA 1991-2020 normals). Measured at the Tucson Intl Ap (AZ) station. The heating load here is higher than in 9 of the 56 other cities we cover. Heating load like that decides whether a heat pump alone is enough or a furnace backup makes sense.
Source: NOAA normals
Source: NOAA normals
Near Tucson the low drops to freezing on about 12 days in a normal year. Of the 52 other cities in this network, 9 have a lower number of freezing days.
Source: NOAA normals
Source: NOAA normals
A normal year brings about 158 days of 90 F or hotter near Tucson (NOAA normals). The number of 90 F days here is higher than in 54 of the 54 other cities we cover.
Source: NOAA normals
Source: NOAA normals
Tucson seasons, by the numbers
Pima County, AZ carries a very high heat wave risk rating in FEMA's National Risk Index. The same heat wave rating applies in 7 of the 55 other cities in this network. During a heat wave contractors book up; a tune-up in spring avoids the rush.
Source: FEMA risk index
Source: FEMA risk index
On cold wave risk, FEMA's National Risk Index puts Pima County, AZ at very low. 4 of the 53 other cities we cover sit in counties with the same cold wave rating. Frozen weather is when a furnace that limped through fall finally quits.
Source: FEMA risk index
Source: FEMA risk index
Official board: Arizona Registrar of Contractors (Arizona)
Sources, checked October 2026
Local offices and rules in Tucson
TEP's Efficient Home Water Heating rebate is credited to the TEP account for an ENERGY STAR heat pump water heater, and its Smart Thermostat Rebate is also offered; the page gives no program status.
Source: www.tep.com. Checked October 2026.
Source: www.tep.com. Checked October 2026.
Tucson Electric Power (TEP) provides electricity to Tucson residents.
Source: www.tep.com. Checked October 2026.
Source: www.tep.com. Checked October 2026.
If you smell gas, leave the house and call your gas utility from outside. Keep a working carbon monoxide alarm near the bedrooms, and do not open a furnace cabinet that is running.
Common jobs
