Two tradesmen in navy shirts stand at the open back of a white work van and look over a rolled-out sheet of paper plans laid on the tailgate.
CONSTRUKTR emblem, a steel shield with a blue circuit patternGuide

Quoted one leak, then the open wall showed the whole run.

For example: You open the wall for a leak and find corroded pipe running the whole length.

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What it costs

The customer agreed to more work out loud, and the invoice will surprise them.

What owners do today

A call to the office, a scribbled note, and an argument later.

Quote what you can see, and say so

Behind a wall or under a slab, you are pricing what you can see and test. Write that on the estimate: the price covers the repair described, and anything found once the wall is open is priced and agreed before it is done.

Keep the trip, the diagnosis and the repair apart

The trip, the time to find the problem and the repair itself are three different things. Three lines let the customer see each one, and let you charge for the diagnosis when they decide not to go ahead.

Free drain cleaning invoice template

Quote heaters and repipes as choices

When there is a choice of tank, size, fuel or how far to go, the customer is choosing, so give them the choices on one page with a total each. When there is no real choice, one estimate is enough.

Free plumbing good, better, best proposal template

Get the yes before the added work

When the job grows, stop, show the customer, price it, and get a written yes. Then put it on the invoice as its own line, in the words they agreed to.

Get written approval for extra work

Make the invoice read like the work order

What you found, what you did, the parts, and the added work on its own line. A customer who reads it should recognize their own afternoon.

More guides: Price a job so it covers parts, labor and overhead; A weekly routine for who still owes you; Ask customers for reviews, and remember to; Get written approval for extra work; Switch software without losing your customer list; The first month on new software, week by week; Price good, better and best options; HVAC estimates and invoices; Electrical estimates and invoices; Roofing estimates and invoices; Solar estimates and invoices; Handyman estimates and invoices. All guides.

With CONSTRUKTR

Change orders Every plan

  1. Raise the added work from the job, with photos.

  2. The office prices and approves it, with a record of who approved what.

    app.construktr.ai/change-orders
    Change order CO-2026-03 on the CONSTRUKTR web dashboard for the demo company, waiting for a decision: extend the Wing C patch and reseal about 20 feet of open parapet coping, raised by Danny Ortiz on Sep 30, 2026, because the coping is open and letting water behind the membrane. It adds $2,150.00, taking the recorded price of $1,650.00 to $3,800.00, with Approve, Send to customer, Have the customer sign and Reject buttons.
    Full size
    Change orders: who raised the extra work, why, and what it adds

Check it yourself

Questions owners ask

Should I charge to diagnose if they do not go ahead?

That is your call, and either answer works when it is on the estimate before you start. A diagnosis line makes it a clear, agreed charge.

Is a camera inspection its own line?

Yes. Say on the estimate whether it is included with the drain cleaning or extra, so it is never a surprise on the invoice.

Can CONSTRUKTR keep the record of added work?

Yes. Change orders come with every plan: the tech raises the added work from the job, with photos, and the office prices and approves it, with a record of who approved what.

See it on your own jobs.

30 days free, no credit card required

Paid plans renew automatically. 100-day money-back guarantee on your first paid charge. Request a refund at support@construktr.ai. Cancel any time; access continues to the end of the paid period.