Storage tank
$1,600–$2,400Typical cost, including installation
WATER HEATER REPLACEMENT IN SAN MARCOS
San Marcos Water Heater
Replacement
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See what replacement costs ↓SAN MARCOS AT A GLANCE
Replacing a water heater in San Marcos.
In San Marcos, water heater work takes a $63 home trade permit plus a $15 technology fee. The city runs its own power company, SMTX Utilities, but its rebate program doesn't cover water heaters.
- Permit to replace with the same type
- Yes · City of San Marcos Planning & Development Services (Permit Center)
- Permit fee
- $63 home trade permit + $15 technology fee (Development Fees starting October 1, 2025)
- Who gets the permit
- The license holder (who fills out the trade permit form), or a homeowner who lives in the home as their homestead and does the work with their own hands under a Homeowner's Permit.
- Electric utility
- SMTX Utilities (City of San Marcos Electric Utility)
- Water
- City of San Marcos (SMTX Utilities)
- Typical home
- Built 2001 (median) · 31% owner-occupied
- Companies found
- 4 that advertise water heater work
01 / TYPICAL PRICES
What a new water heater costs.
Know before you call.
Heat-pump tank
$2,500–$5,000Typical cost, including installation
Tankless
$2,400–$5,400Typical cost, including installation
AI equipment illustrations; models vary and images are not to scale. Typical national prices from Home Depot ↗, checked September 28, 2026. The source doesn’t say how many jobs the ranges are based on. These are not San Marcos averages or guaranteed quotes.
Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →
What we know about prices in San Marcos
- National installer’s published rangeThe ranges above. Home Depot ↗
- Local permit fee$63 home trade permit + $15 technology fee (Development Fees starting October 1, 2025). City of San Marcos Planning & Development Services (Permit Center) fee source ↗
- Local company’s advertised priceNone of the local company websites we checked list a full installed price.
- Measured local dataNot collected yet, so no San Marcos average is shown.
02 / COMPANIES WE FOUND
Who replaces water heaters in San Marcos?
Companies that advertise water heater replacement here, with what their water heater customers say.
Companies we found in our research. They are not Ember & Tank providers or partners. We show selected reviews, not a rating or every review. How we choose reviews →
Mr. Rooter Plumbing of San Marcos
Lists San Marcos among the areas it serves. Based in San Marcos.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback One Yelp reviewer praised a next-morning visit and a quick return with parts for a hot water heater repair.
Worth knowing No water heater complaints found in the sources checked.
1 water heater review read, checked September 29, 2026.
Fox Service Company
Lists San Marcos among the areas it serves. Based in Austin.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
Water heater feedback A reviewer praised a quick inspection and next-day water heater replacement.
Worth knowing A 2024 Yelp reviewer said he was charged $700 for 30 minutes of labor on a warranty part after an initial invoice showed only a $90 trip fee (no reply visible).
3 water heater reviews read, checked September 29, 2026.
Reliant Plumbing
Lists San Marcos among the areas it serves. Based in Austin.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback Yelp reviewers praised a free Sunday relight, advice on a failing unit and a professional, clean installation.
Worth knowing BBB complaints allege a $1,703.42 double charge (Reliant said a refund had been issued), an unfinished tankless job (answered, not resolved), an unconsented $213 membership (unanswered) and a faulty tankless install that ended in a $2,500 refund (resolved).
9 water heater reviews read, checked September 29, 2026.
Roto-Rooter Plumbing & Water Cleanup (Austin)
Lists San Marcos among the areas it serves. Based in Austin.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback Reviewers praised same-day repair, honest advice on what a replacement did and did not need, and a quick fix to a burst water heater pipe.
Worth knowing On Yelp, one customer said a $2,500 replacement bid was repaired elsewhere for $150; another said a tankless installation flooded the house, and that the Austin manager accepted responsibility and arranged drying and repairs.
5 water heater reviews read, checked September 29, 2026.
Order: companies based in San Marcos first, then companies whose water heater reviews we’ve read. Each group is alphabetical. These businesses are not our employees or vetted partners and do not receive requests from Ember & Tank. We haven’t checked their license, insurance or quality of work. Texas plumbing license lookup ↗.
FROM COMPANIES SERVING SAN MARCOS
Photos of water heater jobs from these companies.
HOMES IN SAN MARCOS
What San Marcos homes are like.
2001Median year built
23%Built before 1980
31%Owner-occupied
26%Heat with utility gas
40%Single-family homes
About 33% of homes were built since 2010, so many original water heaters are reaching the age when replacement planning makes sense.
71% of homes heat with electricity, which usually means an electric water heater. It’s worth getting a price on a heat pump model too.
Only 31% of homes are owner-occupied. Renters should ask the landlord or property manager; replacing the heater is usually the owner’s decision.
U.S. Census Bureau, American Community Survey ACS 2024 5-year ↗ (2020-2024). Heating fuel is what homes use to heat the house. It often, but not always, matches the water heater’s fuel.
LOCAL CONDITIONS
What’s different in San Marcos.
City rebates don't cover water heaters
SMTX Utilities' Energy Efficient Home Rebate covers HVAC, insulation, ducts, windows and similar items for single-family electric customers. Its flyer doesn't list a water heater rebate.
Skipping the permit costs extra
The fee schedule doubles the normal fee for work started without a permit, and charges a flat $200 when a homeowner does the work without one.
ENERGY & WATER
Who supplies San Marcos homes.
Energy
- Electric: SMTX Utilities (City of San Marcos Electric Utility) (City-owned; we didn't confirm other power companies that may serve parts of the city.)
REBATES & CREDITS
Rebates for San Marcos homes.
For SMTX Utilities (City of San Marcos Electric Utility) customers in San Marcos. Ask installers for the price before rebates, then check with the program that you qualify.
- Federal Energy Efficient Home Improvement Credit (25C) ↗EndedCovered improvements made through December 31, 2025.
Checked September 29, 2026. Who qualifies and the conditions: Texas rebates · How to check an incentive.
PERMITS & LICENSING
Permits and licenses in San Marcos.
Permits and who issues them
Plumbing work like replacing a water heater takes a home trade permit, applied for through MGO Connect (Planning & Development Services, 630 E. Hopkins, 512-805-2630).
The fee schedule lists a $60 yearly local registration fee for 'all other trade & misc licenses required by ordinance'.
City of San Marcos Planning & Development Services (Permit Center) ↗ · San Marcos Development Fees effective Oct 1, 2025 ↗ · San Marcos Trade Permit Application (Sept 2025) ↗ · San Marcos Homeowner Permit Application ↗ · Tex. Occ. Code §1301.551 (municipal plumbing permits) ↗
Check the installer’s license
Ask for the license number and search it yourself on the Texas plumbing license lookup ↗. A listing on Ember & Tank is not a license check. Texas licensing explained →
NEARBY CITIES
Compare places near San Marcos.
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Kyle | 9 mi | Required | — | Pedernales Electric Cooperative (PEC) |
| Buda | 15 mi | Required | — | Pedernales Electric Cooperative (PEC) |
| Lockhart | 15 mi | Required | $125 | Lockhart Electric Utility (city-owned) |
| New Braunfels | 16 mi | Required | $15 | New Braunfels Utilities (NBU), Guadalupe Valley Electric Cooperative (GVEC), Pedernales Electric Cooperative |
| Canyon Lake | 19 mi | Not required (conditions apply) (county) | — | Pedernales Electric Cooperative |
| Seguin | 20 mi | Required | $25 | City of Seguin Electric Department, Guadalupe Valley Electric Cooperative (GVEC) |
COMMON QUESTIONS
San Marcos water heater questions.
How much is a trade permit in San Marcos?
$63 for a home trade permit plus a $15 technology fee, under fees starting October 1, 2025.
Does SMTX Utilities offer a water heater rebate?
No. Its Energy Efficient Home Rebate flyer covers HVAC, insulation, ducts and windows, not water heaters.
More guides: Texas water heater replacement · All local guides