The price on a water heater replacement is the price on the invoice - one flat number covering equipment, labor, permits, and code-required accessories. This page shows real ranges for tank and tankless installs in both states so you know what the quote should look like before anyone visits.
Real Ranges, Not “It Depends”
These are flat-rate installed prices for 2026 in the Phoenix and Los Angeles metros. They include equipment, labor, the permit, code-required accessories, and haul-away of the old tank. They do not include unrelated work (gas line replacement, electrical service upgrade, code violation corrections discovered during the install).
| Scope | AZ installed range | CA installed range | What drives the spread |
|---|---|---|---|
| 40-gal natural-draft gas tank (like-for-like) | $1,950 - $2,650 | $2,150 - $2,850 | Permit fees vary by city; AZ adds expansion tank and pressure-reducing valve work in most cases |
| 50-gal natural-draft gas tank (most common AZ) | $2,150 - $2,950 | $2,350 - $3,150 | Larger tank + a 6-year warranty tier vs. 6-year standard |
| 50-gal power-vent gas tank (no chimney) | $2,650 - $3,650 | $2,950 - $3,950 | Power-vent adds an electrical circuit, a different vent termination, and a more expensive unit |
| 75-gal natural-draft gas tank (large family) | $2,650 - $3,550 | $2,950 - $3,850 | Larger tank + capacity upgrade |
| Tankless, gas, condensing (Navien, Rinnai, Rheem) | $4,850 - $7,250 | $5,250 - $7,650 | Gas line sizing, condensate routing, Title 24 paperwork in CA |
| Heat-pump water heater (50-gal, 240V) | $3,250 - $4,650 | $3,550 - $4,950 | Dedicated 240V circuit, condensate drain, location constraints |
| Like-for-like electric tank (30-50 gal) | $1,650 - $2,450 | $1,850 - $2,650 | Most common swap in CA where the gas line is undersized for a gas unit |
These are ranges, not quotes. The price on your quote depends on the specific scope - access difficulty, code-required accessories that we discover during the diagnostic, and the equipment tier you pick.
The Five Factors That Drive the Spread
1. Equipment tier. A standard-efficiency 40-gallon gas tank is the cheapest install. A power-vent is more. A condensing tankless is most. The equipment cost itself is roughly 40-60 percent of the total install price.
2. Code-required accessories. In AZ, that typically means an expansion tank on closed-loop supply, a pressure-reducing valve if the static pressure is over 80 PSI, a gas sediment trap (drip leg) on the gas line, and a fresh water connector set. In CA, it means a seismic strapping kit, a pan with a drain under the unit if it is on interior flooring, and Title 24 documentation if it is a new install rather than a like-for-like swap.
3. Access difficulty. A tank in a garage corner with 36 inches of clearance is a one-hour pull. A tank in a tight attic with a pull-down ladder is half a day and includes hauling the old tank down by hand.
4. Permit fees. AZ cities range from roughly $50 to $150 for a water heater permit. CA jurisdictions range from $80 to $250 depending on whether it is a same-day over-the-counter permit or a plan-check permit for a tank-to-tankless conversion.
5. Haul-away and recycling. Most Comfort Pros installs include haul-away in the flat rate. AZ scrap-metal recycling on a steel tank is essentially free. CA jurisdictions with stricter e-waste or metal-recycling rules sometimes add a small processing fee.
What a Comfort Pros Quote Looks Like
Every quote is a flat-rate number on a single page, with line items for equipment, labor, permits, and accessories. The number on the quote is the number on the invoice when the work is done.
| Line item (50-gal AZ install example) | What’s in it |
|---|---|
| Bradford White 50-gal natural-draft gas tank | Equipment, 6-year manufacturer tank warranty |
| New magnesium anode rod | Sized for AZ hard-water supply |
| New flex water connectors | Code-required on a tank replacement |
| Expansion tank | Required for closed-loop supply in most AZ jurisdictions |
| Gas sediment trap | Code-required drip leg on the gas line |
| Permit and inspection | City plumbing and mechanical permit |
| Haul-away | Old tank removed and recycled |
The number on the bottom is the number on the invoice.
Why AZ Quotes Look Different From CA Quotes
The equipment is the same. The install scope is different, because the water, the climate, and the code are different.
Anode rod service life. AZ municipal water runs 15-25 grains per gallon hardness. The magnesium anode rod in a new AZ tank is consumed in 6-8 years, not the 10-12 years the manufacturer expects. CA water is softer on average (8-15 gpg in most LA neighborhoods), so the rod lasts longer. AZ installs more frequently include a fresh anode rod or a powered anode rod upgrade.
Static water pressure. AZ municipal supply frequently runs static pressure above 80 PSI at the meter. CA municipal supply typically runs lower. Above 80 PSI, code requires a pressure-reducing valve. AZ installs frequently include a PRV that CA installs do not need.
Seismic strapping. CA jurisdictions require seismic strapping on water heaters by code. AZ jurisdictions in seismic zones (parts of Maricopa County) require it on a few specific installations but not the majority. CA installs always include the strapping kit.
Title 24. California Title 24 Part 6 applies to water heaters in some cases - particularly on a tank-to-tankless conversion or a change in fuel type. The documentation is real work with real cost; it is not optional, and a CA quote that omits it is not a complete quote.
Garage ambient temperature. AZ garages hit 130°F+ in summer. A standard tank in an AZ garage is running its insulation to its limit. CA garages rarely exceed 110°F. AZ installs more frequently specify a higher-insulation tank or relocation of the tank out of the garage.
When a Tank Is the Right Answer
A tank is the right call when:
- The home has an existing tank in good location with code-compliant connections
- The homeowner plans to stay fewer than 8-10 years
- The fuel type (gas or electric) is not changing
- The budget is the primary constraint
The standard tank install is a 3-4 hour job, has the lowest install cost, and has the lowest maintenance burden. The anode rod is the wear item, and replacing it at year 6 in AZ or year 10 in CA extends the tank life by 3-5 years.
When a Tankless Is the Right Answer
A tankless is the right call when:
- The home is being repiped or has a new gas line being run
- The homeowner plans to stay past the tankless break-even (8-12 years)
- Hot-water demand is intermittent (a family of 2-4 with non-overlapping showers) rather than simultaneous (a family of 5+ with overlapping demand)
- Space is constrained (no attic, no basement, no garage space for a tank)
- The home is converting from electric to gas and the gas line is being upsized anyway
A tankless install is a full-day job. It requires a gas line sized for the higher BTU load, a condensate drain or neutralizer (for condensing units), and a 120V or 240V electrical circuit. The unit itself costs 2-3x a tank; the install labor costs 1.5-2x. The fuel savings are real (15-25%) but the payback math is closer than the marketing suggests.
What a Comfort Pros Diagnostic Covers
If your tank is showing its age (leaking from the bottom, no hot water, rumbling noises during the heat cycle), the $89 diagnostic covers:
- Visual inspection of the tank and connections
- Anode rod check (if accessible without major disassembly)
- Pressure test on the water and gas lines
- Combustion analysis on gas units
- Written recommendation: repair, replace, or monitor
If the recommendation is replace, the diagnostic fee comes straight off the install quote.
If your water heater is over 8 years old and has never had the anode rod checked - request a water heater diagnostic or read more about why hard water kills AZ water heaters.