What the quote has to show
Tankless conversion quote checklist
A tankless quote is complete only when it names the gas or electrical supply, the vent, the condensate, and the permit path. A price with none of those is a guess.
Ask for the model and the manufacturer's sizing page for your fixtures. Ask whether the existing flue can be reused. Most cannot. Ask where condensate drains. Ask who pulls the permit. In Aurora, same-day inspection is a request for replacement heaters, not a guarantee, and a conversion may not be that request. In Castle Rock the Town requires plan review, the specification sheet, and gas piping load calculations. That packet is the Castle Rock tankless page. Do not send an Aurora-only quote to that counter.
This list does not size the pipe and does not promise savings. No hardness number and no altitude percentage are printed here. The hiring page is tankless installation.
Questions to settle first
What has to be on the quote?
The model, the vent type, the gas or electrical change, the condensate drain, who pulls the permit, and what is excluded. Without those, two prices are not the same job. This page still will not print a dollar figure. Ask them to write that limit into the quote before you compare it with another company.
Does Aurora guarantee the inspection day?
No. The City may inspect a replacement heater the same day when a licensed contractor and the homeowner are both there, and it may come another day. A tankless conversion can be a different review. Ask which path this submittal is.
What does Castle Rock add?
Plan review, the manufacturer's specification sheet, and gas piping load calculations. A storage-tank heater there may skip that review. A tankless unit may not. Use the Castle Rock page if the house is in the Town. Ask them to write that limit into the quote before you compare it with another company.
