About this example
This case is hypothetical. The home, the owners and the contractors are invented, no real business is described, and no prices or timelines are given.
The home is a 1960s single-story house in Orange with a gas tank heater in a hall closet. The heater has rusty water, a rumbling tank and no seismic straps.
What happened
Illustrative example. Not a real job or customer.
The owners decide to replace the aging heater before it leaks. They ask two licensed contractors, both checked at cslb.ca.gov, for written estimates.
- Estimate A is a single line: replace water heater, with a total.
- Estimate B lists the new heater's size and fuel, removal and disposal, a new flexible gas connector, seismic straps anchored into studs, a relief valve discharge line, vent connector replacement and a permit.
- Using an estimate comparison worksheet, the owners ask contractor A what their price includes.
- Contractor A confirms strapping and the permit weren't included and revises the estimate.
With both estimates covering the same scope, the owners can compare them fairly and choose.
Scope comparison in the example
| Item | Estimate A (original) | Estimate B |
|---|---|---|
| Heater size and fuel named | No | Yes |
| Disposal | Unclear | Yes |
| Seismic strapping | No | Yes |
| Discharge line | Unclear | Yes |
| Vent connector | No | Yes |
| Permit | No | Yes |
What the example shows
- Strapping
- California requires it; the closet heater had none
- Scope
- Line items reveal differences a total hides
- Permit
- Ask who pulls it and check with the City of Orange
- Timing
- Planned replacement avoids an emergency leak
Questions the owners asked
- Does your price include strapping, the discharge line and the vent connector?
- Will you pull the permit if one is required?
- Does the closet have enough combustion air for the new heater?
Common questions
Is this based on real contractors?
No. Both contractors and the household are invented for illustration.
Why replace before a leak?
Some owners choose to when an older tank shows rust and heavy sediment, to avoid water damage. It's a judgment call.
Would the closet location change anything?
Closets raise questions about combustion air, clearances and access, which a plumber should address.
General information for Orange, not a quote or professional advice. In an emergency, call 911.