San Diego County
Water heater installation in San Marcos
Same-week tank and tankless installs for San Marcos homeowners — at the lowest price, with lifetime maintenance that keeps your heater running 10–15 years longer.
Why San Marcos chooses A1
Whether your San Marcos home is a newer build ready for a condensing tankless or an older property that needs a straightforward tank swap, we carry every major brand — Rheem, Bradford White, A.O. Smith, Rinnai, Navien and more.
We help San Diego County residents claim available utility and California heat pump rebates, and we'll match any competitor's quote.
Top deals for San Marcos
Rheemtank
ProTerra Hybrid Heat Pump 50 Gal
50 gal · hybrid · UEF 3.75
Up to $1000 rebate
$899$1,899
Bradford Whitetank
AeroTherm Heat Pump 65 Gal
65 gal · hybrid · UEF 3.9
Up to $1000 rebate
$1,399$2,399
A.O. Smithtank
Voltex Hybrid 50 Gal
50 gal · hybrid · UEF 3.45
Up to $1000 rebate
$999$1,999
American Standardtank
Heat Pump 50 Gal
50 gal · hybrid · UEF 3.5
Up to $1000 rebate
$799$1,799
Lifetime Service Membership
$45/month. Your water heater, handled forever.
- ✓ Full replacement or repair at no charge
- ✓ Free upgrade to a new unit every 15 years
- ✓ Annual flush, anode & safety maintenance
- ✓ Units last 10–15 years longer on average