Home / Sample estimates / Septic

Sample septic estimate

Drain field replacement estimate example

A yard gets torn up and a county inspector decides when it gets put back. Both belong on the bid.

Download this estimate as a PDFWrite your own, free
What the septic contractor typed

"replace failed drain field, 3 lateral lines 60 ft each gravel and pipe, new distribution box, tie into existing tank, permit and county inspection incl, rough grade only, electrical not incl"

What the customer got
Septic Pros LLC
Proposal #2474 · September 13, 2026
Prepared for John Thompson
Scope of work
• Replace the failed drain field: three lateral lines, 60 feet each, gravel and pipe.
• New distribution box.
• Tie into the existing tank.
• Permit and county inspection included.
• Rough grade only. No sod or landscaping.
• Electrical not included.
Total
$9,800
Timeline
3 days on site, plus the county inspection
Payment
40% upfront, 40% on start, 20% on final inspection
Warranty: 1 year on workmanship · Deposit at signing: $3,920
Type your full name to accept this proposal. This is a legally binding electronic signature.
Full name
Accept and pay $3,920 deposit

Example figures for a typical drain field replacement job. Not a quote. Every line on the estimate came from the notes above. Nothing was added.

Write your own drain field replacement estimate

Type the job the way you would text it. It comes out like the one above, in about five seconds. No account needed.

Only what you type goes on the estimate. Nothing gets added.
No account needed to try it.

30 days free, then $29 a month. No card to start. Septic estimate template · BidWriter Pro for septic contractors