The systems
One row per controller. Pick a system type to start from a common zone mix, then replace the counts with what is actually on the property. Drip is slower than spray — a flat per-zone price cannot see that.
Minutes and backflow
Drip laterals need a longer, lower-pressure purge. A backflow is a drain-and-insulate, not “included” in the blowout. A freeze-warning call premiums the wage, not the compressor.
Your costs
Your bid
- Zones on this stop
- On-site hours
- Travel hours
- Total hours
- Loaded labor
- Freeze-call premium
- Compressor & fittings
- Overhead
- Total cost
- Profit
- Price per zone
- Effective hourly rate
- Walk-away price
Where the blowout hours go
Transparent arithmetic from your own inputs. Starting minutes-per-zone are common ballpark figures, not a winterization specification, a manufacturer procedure, or a guarantee. Time your own crew and replace them. Confirm backflow drain method and local freeze rules yourself — this is not a finding that any system is winterized.
Common questions
Why does the same zone count cost more or less depending on head type?
Because spray, rotor, and drip zones each get their own minutes-per-zone rate, not one flat per-zone number. Drip laterals need a longer, lower-pressure purge than a spray zone, so a system with the same zone count but more drip runs takes longer to blow out and should cost more — a flat “$8 a zone” rate cannot see that difference.
Is a backflow drain-and-insulate included in the per-zone price?
No. Backflow work is priced separately, from the number of backflows and the minutes you set per backflow. Treating it as bundled into the zone count is exactly the shortfall this tool exists to catch.
What does the freeze-warning toggle actually change?
Turning it on applies your after-hours labor premium percentage on top of the loaded labor cost for the whole stop, because a freeze call is a wage problem, not a compressor problem — the same compressor and fittings cost either way. Leave it off for a normal daytime route.
Does a low price here mean the system is actually winterized?
No. This is a price calculation from the minutes and rates you enter, not a finding that any system was correctly drained or insulated. Confirm your drain method and local freeze-risk timing yourself; the tool has no way to check either.
Hand the customer a proposal
The price above is for you. This is the page you print or save as a PDF and give to the customer — your details, their details, the scope, the deposit split, and a line for them to sign. Your business details are saved on this device so you only type them once; the customer’s details are never saved.
Everything on the printed page is text you typed or a number this calculator worked out. It contains no warranty, lien, or cancellation wording — those depend on your jurisdiction and your contract, and this tool is not the place to invent them.