Gas tankless water heater replacement cost in Riverside, CA
Installed, About 180,000–199,000 BTU (2–3+ bathrooms)
A typical tankless water heater (About 180,000–199,000 BTU (2–3+ bathrooms)) costs about $2,800 installed in the Riverside area, about the same as the national figure, because plumbers here earn a median $31 an hour against $31 nationally.
Prices by size in Riverside
| Size | Low | Typical | High | National typical |
|---|---|---|---|---|
| About 150,000 BTU (1–2 bathrooms) | $2,050 | $2,650 | $3,450 | $2,650 |
| About 180,000–199,000 BTU (2–3+ bathrooms) | $2,600 | $2,800 | $3,800 | $2,800 |
Local labor: what plumbers earn here
| Hourly wage | Riverside metro | United States |
|---|---|---|
| 25th percentile | $26 | $24 |
| Median | $31 | $31 |
| 75th percentile | $39 | $41 |
The Riverside market
The City of Riverside's Building and Safety Division issues same-day, over-the-counter permits for simple water heater change-outs. Its Bulletin 140 lists only replacement of a part as exempt, which implies furnace, AC and heat pump replacements need permits; the 2026 fee schedule prices all three. Fees include $18.50 for a water heater up to 100,000 Btu, $24.50 for a furnace or a 0 to 3 ton AC unit, $16.50 for an AC heat pump (electrical) and a $41.00 permit issuance fee. Permits may go to the owner or an authorized agent, and contractors must show their license and a city business license. The bulletin also states that a permit application must be submitted to the Building Official by the next working business day. Inspection details were not retrieved, so ask the city. San Bernardino, Ontario and county areas follow their own departments.
A tankless conversion that needs a new vent, a gas line upgrade or a new location is more than a simple change-out. Ask the city whether your plan still counts as simple. Most gas tankless units have a much higher gas input than a tank, so ask whether your meter and line can supply one. Ask where the vent will exit and whether the quote includes isolation valves for descaling.
Permits in Riverside
| Permit for this job | Yes (source) |
|---|---|
| Fee | 2026 schedule: water heater up to 100,000 BTU $18.50 each; furnace $24.50 each; AC unit 0-3 tons $24.50 each; AC heat pump (electrical) $16.50 each; plus permit issuance $41.00. |
| Who can pull it | Property owner (or authorized agent) or licensed contractor with City business license |
| Inspection | Unclear (inspections page exists; not retrieved) |
Rebates in California
HEAR: paused. HOMES: announced, not open yet. Source: California Energy Commission, checked October 13, 2026.
- TECH Clean California: Statewide heat pump HVAC and heat pump water heater incentives via contractors; also administers HEEHRA (fully reserved)
- Golden State Rebates: Instant rebates on efficient appliances at retailers
What these programs cover, and other states
Other systems in Riverside
- Gas tank water heater
- Gas furnace
- Central air conditioner
- Heat pump (ducted, outdoor unit + air handler)
Gas tankless water heater cost in other metros
- Los Angeles, CA
- San Francisco, CA
- San Diego, CA
- Sacramento, CA
- San Jose, CA
- Fresno, CA
- New York, NY
- Chicago, IL
Sources
- City of Riverside Building and Safety: Permits
- City of Riverside building fees (Form 126)
- City of Riverside Bulletin 140: work exempted from building permits
- TECH Clean California
- California Energy Commission: IRA residential energy rebate programs
- California Health and Safety Code section 19211 (water heater bracing), via the Seismic Safety Commission
- EIA, 2020 RECS: Highlights for space heating in U.S. homes by state
- EIA, 2020 RECS: Highlights for water heating in U.S. homes by state
- EIA, 2020 RECS: Highlights for air conditioning in U.S. homes by state
- BLS OEWS May 2025, Riverside-San Bernardino-Ontario, CA (47-2152 plumbers)
- DOE Gas-fired Instantaneous Water Heaters Final Rule TSD (Dec 2024), Table 8.2.6 (2023$)