In this guide
AI estimating software takes a description of a job, typed, spoken or photographed, and turns it into a priced list of line items you can edit and send. The good tools do in a minute what used to take twenty: they break the job into lines, pick sensible units, and remember the small items people forget. What they can't do is see inside the wall, know what your supplier charges you, or decide what your time is worth. The estimate is still yours.
There are two quite different kinds of tool behind the same phrase. Plan takeoff tools read construction drawings and count or measure what's on them, for estimators bidding commercial and new-build work. Field quoting tools start from what you see on site and what you say about it, for service and remodel trades writing a price the same day. This page is about the second kind, because that's where most small trade businesses spend their estimating time.
What a draft looks like
Say you're standing in a bathroom and you record this:
Replace the bathroom vanity with a new 36 inch one and move the sink drain a little. Haul the old one away.
A field quoting tool turns that into something like:
| Line | Qty | Unit | Price | Amount |
|---|---|---|---|---|
| Remove old vanity, fit new 36 inch vanity | 3 | hours | $95.00 | $285.00 |
| Relocate sink drain | 2 | hours | $95.00 | $190.00 |
| Drain fittings, trap and supplies | 1 | job | $85.00 | $85.00 |
| Haul away old vanity | 1 | job | $150.00 | $150.00 |
with a note: Assumes no wall or tile repair.
That's a usable start. The labor is split into the two tasks a client will recognize, materials are grouped, disposal isn't forgotten, and there's an assumption written down. It is also wrong in at least one place for most contractors, and the next section is about finding where.
The four things to check before you send
- 1. The hourly rate
- A decent tool uses the rate you set, not one it makes up. In VanReceipts, set your hourly rate once in Settings and the draft prices every labor line at that rate. If it isn't set, you get a typical market rate, which is someone else's number. Set your own once. The labor cost calculator will tell you what it needs to be.
- 2. The hours
- The AI estimates hours from a description, the same way a new hire would. It doesn't know the drain is in a slab, or that this client's house is three flights up. Read every labor line and ask whether you'd have written that number.
- 3. Material prices
- The prices are typical supply prices for your country, not your supplier's price this week, and not the specific vanity the client picked. Anything above about a hundred dollars deserves a check against a real quote or a recent receipt. If the client supplies the fixture, delete the line and say so in the notes.
- 4. What isn't there
- Permits, access, parking, a second trip for an inspection, patching the wall you'll have to open. A draft only contains what the description implied. The most useful habit is to read the draft and ask "what would make this job go wrong?", then add a line or an assumption for each answer.
Where AI estimating actually helps
It isn't the pricing. It's everything around the pricing:
- Turning a messy voice note into clean lines. You can talk the way you'd explain the job to a helper, and it comes back in the order a client reads.
- Asking the question you'd have skipped. Better tools ask one or two clarifying questions before they draft (what size, supplied by whom, one layer or two) with tappable answers. It takes ten seconds, and it's often the difference between a draft you edit lightly and one you rewrite.
- Consistency. Every estimate has the same structure, the same kind of notes, and an assumptions line. That matters more once you have a second person writing estimates.
- Speed on the small jobs. The $400 job is where contractors most often skip a written estimate. When writing one takes a minute, you write one, and the client has something to say yes to.
Where it guesses
Anything you can't see. Photos help an AI understand the scope (a tub surround, a panel, a roof pitch), but a photo can't show rot under tile or a joist in the wrong place. Hidden conditions are still yours to price, as an assumption or an allowance. See estimate vs quote vs bid for how to word those so the price holds up.
Local pricing is the other gap. Labor markets and material prices vary a lot by region. Treat the AI's prices as a first pass and your own numbers as the final one.
What happens to your photos and notes
Drafting happens in the cloud, so the description and any photos are sent to be processed. Before you use any AI tool with client property photos, check what it keeps and for how long. In VanReceipts the photos and your description are sent only to draft that estimate, and you confirm every line before anything is saved or sent.
What did that job really make?Profit and margin for any job in seconds.FAQ
Is AI estimating accurate?
It's accurate at structure and roughly right on typical prices, and it can't know site conditions it can't see. Treat a draft the way you'd treat an estimate from a capable new hire: a good start that you check before it goes out.
Can AI replace an estimator?
For plan-based commercial bidding, takeoff tools save estimators a lot of counting, but a person still owns the bid. For field quoting, AI replaces the typing, not the judgment. The contractor still decides the hours, the rate and the risk.
Does AI estimating software know my prices?
Only what you give it. The most important setting is your hourly rate. Some tools also learn from past estimates or a price book. Without those, material prices are typical market figures for your country.
What does AI estimating cost?
It's usually part of an estimating or field service app rather than sold separately. VanReceipts includes AI estimates with Pro, along with invoices, card payments, receipts and mileage. See pricing.
