Water heater installation in San Antonio runs roughly $1,200 to $3,500 for a standard tank and $3,000 to $6,000 for tankless, depending on size, fuel and venting. First Response sizes the right unit for your home, hauls away the old one, installs to code, and completes most replacements the same day with a flat quote.
Tank vs tankless
- Tank: lower upfront cost, simple, 8-12 year life
- Tankless: endless hot water, saves space and energy, longer life
- We size by your home's demand and fuel type
- Gas and electric, including conversions
What installation includes
- Right sizing for your household
- Removal and disposal of the old unit
- Code-compliant install, venting and connections
- Same-day replacement on most jobs, flat quote
Frequently asked questions
How much does a water heater cost installed?
About $1,200 to $3,500 for a tank and $3,000 to $6,000 for tankless, depending on size and fuel. We quote flat upfront.
Can you replace it the same day?
Yes, most standard replacements are done same day.
Is tankless worth it?
If you want endless hot water, space savings and lower long-term energy use, yes. We'll show you the numbers.