Question 1

Do I need a permit to replace my AC in Arizona?

Accepted Answer

It depends on the city. Mesa, Surprise and Goodyear exempt equivalent replacements, Glendale exempts licensed contractor installs, and Tucson, Scottsdale, Flagstaff and Yuma require a permit.

Question 2

Does a new refrigerant AC need a permit in Phoenix?

Accepted Answer

Yes. Phoenix asks whether the new unit uses a new refrigerant type such as A2L; if so a permit and calculations are required.

Question 3

Does a higher amp AC or bigger gas furnace need a permit in Phoenix?

Accepted Answer

Yes. Phoenix requires a permit if the new unit draws more amps, needs new wire or fuse sizes, or has a gas burner with a higher BTU or CFH demand (which also needs a gas piping isometric).

Question 4

Do I need a permit for a mini-split in Arizona?

Accepted Answer

In Tucson, yes.

Question 5

Do I need a permit to replace a swamp cooler in Arizona?

Accepted Answer

Usually not for a same type and size replacement in Tucson, Phoenix (up to 6,500 cfm) or Chandler.

Question 6

Can an Arizona homeowner do their own work?

Accepted Answer

Yes, if the home is for your own occupancy and not for sale or rent (A.R.S. 32-1121(A)(5)). A sale within one year is evidence it was built for sale.

Question 7

Does a handyman need a license in Arizona?

Accepted Answer

Not for casual or minor jobs under $1,000 total that do not need a building permit, as long as any advertising says "not a licensed contractor" (A.R.S. 32-1121(A)(14), advertising rule at (A)(14)(c)). The exemption never covers gas or fuel connections or fire safety work (A.R.S. 32-1121(D)).

Question 8

Can a handyman replace a gas water heater in Arizona?

Accepted Answer

No, not without a contractor license. The under $1,000 exemption does not apply to any work that connects to natural gas, propane or other fuel (A.R.S. 32-1121(D)).

Question 9

Does an Arizona contractor need a written contract?

Accepted Answer

Yes for contracts over $1,000 with a property owner. It must include the license number, price, deposits and your right to complain to ROC (A.R.S. 32-1158).

Question 10

How long do I have to file a complaint against an Arizona contractor?

Accepted Answer

Two years. The statute counts from completion of the project (A.R.S. 32-1162); ROC counts remodels and repairs from when work was last performed.

Question 11

How much can the Arizona recovery fund pay?

Accepted Answer

Up to $30,000 per claimant, and no more than $200,000 in total for any one contractor license (A.R.S. 32-1132.01 and 32-1139).

Question 12

Do I need a permit to replace my AC or furnace in Phoenix?

Accepted Answer

Phoenix screens AC unit replacements at the permit counter. If any answer is yes, a permit is required: a different location, footprint, weight or duct penetrations, a differently sized unit, more than 2,000 CFM, duct or condensate changes, a new refrigerant type such as A2L, or components inside the building; a change in outdoor air opening size or location or a new outdoor air hood; a gas burner with a higher BTU or CFH heating demand (a full gas piping isometric from the meter is then required); or a higher amp draw or new wire or fuse size (guideline revised September 10, 2026). Questions: (602) 262-7811.

Question 13

Do I need a permit to replace my AC or furnace in Tucson?

Accepted Answer

Tucson requires a permit to install or replace a central heating or cooling system, to install a mini-split, and to install, replace or modify ductwork.

Question 14

Do I need a permit to replace my AC or furnace in Mesa?

Accepted Answer

Mesa says you do not need a permit if your new air conditioning unit uses the same or less electricity as the old one. If you change the electrical connections, you need a construction permit. Permit Services: 480-644-4273.

Question 15

Do I need a permit to replace my AC or furnace in Chandler?

Accepted Answer

Chandler exempts like for like replacement of residential furnaces and evaporative coolers from permits (Homeowner Building Permit Manual, rev. 4/09/26). Development Services: (480) 782-3000.

Question 16

Do I need a permit to replace my AC or furnace in Scottsdale?

Accepted Answer

Scottsdale requires a mechanical permit to install, alter, reconstruct or repair any furnace, refrigeration or other air conditioning equipment, except portable or window units. Most single family mechanical work needs no plan review and is a "minimum" permit you can get online.

Question 17

Do I need a permit to replace my AC or furnace in Glendale?

Accepted Answer

Glendale says you do not need a permit to replace a heater or air conditioner if a licensed contractor installs it (residential only).

Question 18

Do I need a permit to replace my AC or furnace in Surprise?

Accepted Answer

Surprise exempts replacement of air conditioning or heating equipment of equal or lesser size, the same method of operation and in the same location. Gas furnaces and gas air conditioning of equal or lesser BTU in the same location are also exempt (local amendments effective January 1, 2026).

Question 19

Do I need a permit to replace my AC or furnace in Flagstaff?

Accepted Answer

Flagstaff says a building permit is needed to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system regulated by city codes. Its exemption list has no like for like AC or furnace exemption; mechanical exemptions cover portable units and replacing a part that does not alter its approval or make it unsafe.

Question 20

Do I need a permit to replace my AC or furnace in Gilbert?

Accepted Answer

Gilbert's code amendments do not state a like for like exemption for replacing a furnace or air conditioner; the exemption the mechanical code points to covers water heaters. Ask Gilbert before an AC or furnace change out.

Question 21

Do I need a permit to replace my AC or furnace in Goodyear?

Accepted Answer

Goodyear requires no permit for residential heating, ventilation and air conditioning units with like for like replacements installed by a contractor.

Question 22

Do I need a permit to replace my AC or furnace in Yuma?

Accepted Answer

Yuma says electrical, mechanical and plumbing work generally needs a permit and inspection. Its Mechanical Permit Application asks whether the job is a change out of the same size equipment, so HVAC change outs go through a mechanical permit.

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