Install a Water Heater Cost in Arizona in 2026
Most Install a Water Heater projects in Arizona cost between $350 and $7,000. The typical price is $1,700.
Tank water heater at the low end, tankless with gas line and venting changes at the high end.
Arizona prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- Accessible fixture swap versus opening walls or slab
- Pipe material — copper, PEX or cast iron replacement
- Emergency versus scheduled work
- Permit and inspection requirements
Usually included
- Licensed plumber labour
- Pipe, fittings and standard fixtures
Usually extra
- Drywall and finish repair
- Fixtures you supply
- Municipal tap or sewer connection fees