Install a Water Heater Cost in 2026
Most Install a Water Heater projects in the United States 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.
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
Install a Water Heater costs in major metros
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