A replacement estimate that leaves out the seismic straps, the relief valve discharge line or venting changes isn't cheaper. It leaves that work for later or skips it. A repair estimate that names the part and the test that found it is easier to trust than one that says only "fix heater." Copy each contractor's written estimate into the grid below, and mark anything missing with a question mark to ask about.
Replacement estimate grid
| Line item | Estimate A | Estimate B | Estimate C |
|---|---|---|---|
| Heater type, fuel, size or flow rate | |||
| Removal and disposal of old heater | |||
| Water connections and shutoff valve | |||
| Gas connector or electrical work | |||
| Venting changes | |||
| Seismic strapping | |||
| Relief valve and discharge line | |||
| Expansion or pressure control, if needed | |||
| Permit and inspection | |||
| Total price |
For a repair estimate, confirm
- The failed part is named
- How it was diagnosed is described
- Whether the tank or heat exchanger was checked
- Whether draining, flushing or descaling is included
- What other issues were seen but not included
Reading the totals
A lower total may mean
- A smaller or different unit
- Strapping, venting or permit left out
- Existing valves and connectors reused
- Disposal not included
A higher total may mean
- Venting or gas line upgrades included
- A permit and inspection included
- Worn shutoffs replaced at the same time
- A larger or different type of heater
Follow-up questions
- Why did you choose this size and type?
- What would change the price once work starts?
- Is your CSLB license number on the estimate?
- Who pulls the permit, if one is needed?
Common questions
Should I always choose the lowest estimate?
Only once you're sure it covers the same work as the others and comes from a contractor whose license you've checked.
Is it okay to share one estimate with another contractor?
You can describe the scope you want priced so the estimates match. Many people ask each contractor for the same line items.
What if an estimate has no line items?
Ask for a breakdown in writing before you agree to anything.
General information for Orange, not a quote or professional advice. In an emergency, call 911.