Built for septic contractors

Septic estimates your customers sign before the backhoe shows up.

Type the system and the site the way you would say it. BidWriter Pro turns it into an estimate the customer signs from their phone and pays a deposit on by card.

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Legally binding e-signature
Flat $29/month
Deposit by card at signing
Sample septic contractor proposal

What your customer sees from the notes above.

Only what you typed, cleaned up and laid out. Nothing gets added that you didn't say.

Mike's Septic LLC
Proposal #2474 · September 13, 2026
Prepared for The Delgado family
Scope of work
• Replace the failed drain field: 3 lateral lines, 60 feet each.
• New distribution box.
• Permit and county inspection included.
• Rough grade only, no sod or landscaping.
• Electrical not included.
Total
$9,800
Timeline
3 days, plus 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

Common headaches for septic contractors, and what this does about them

1

Big-ticket jobs stalled on a verbal yes

Type it rough on your phone. It comes out as a proposal in about two minutes, with your company name, terms, and warranty already on it.

2

Customers who expected sod and a flat yard

Type it rough on your phone. It comes out as a proposal in about two minutes, with your company name, terms, and warranty already on it.

3

Permit and inspection timing explained on every call

Type it rough on your phone. It comes out as a proposal in about two minutes, with your company name, terms, and warranty already on it.

What to spell out on a septic contractor bid

Useful whatever you write your bids in. These are the lines that keep a job from turning into an argument.

Put it in writing
  • System type and size, and that it matches the permit and the soil test
  • Who handles the permit, the design, and the inspection
  • What the yard looks like after: rough graded, not landscaped
  • Electrical for a pump or aerobic unit, and who runs it
Common jobs
New system installTank replacementDrain field repairAerobic system servicePump and inspect

The county inspection schedule drives the timeline. Put it on the bid so the customer is not calling on day three asking why there is a hole in the yard.

Free septic proposal template · How much deposit to ask for · Four finished septic estimates · Job price calculator · How to follow up on an estimate · Options on one estimate · Deposit calculator

Questions from septic contractors

Before you sign up.

Can I split payment across the inspection?

Yes. Payment terms are yours to write. Put the milestones on the estimate and the customer agrees to them when they sign.

Can I attach the design or the permit?

Yes. Photos and documents go on the estimate so everything the county saw is what the customer saw.

Is the signature legally binding?

Yes. The customer types their full name and clicks Accept, and we record the name, date, time, and the exact proposal they agreed to. That meets the U.S. E-SIGN Act, the same law behind DocuSign.

Does my customer need an app?

No. They tap the link in your text or email, the proposal opens in their phone's browser, they read it and sign.

Does it change what I wrote?

It fixes spelling and lays your notes out cleanly. It does not add scope, exclusions, or promises you didn't make.

What does it cost?

$29 a month, flat. Unlimited proposals. Your first 30 days are free with no card, and you can cancel anytime.

Your next septic bid, two minutes from now.

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