General Contractors
Every trade on one scope. Every change order billed.
Build multi-trade estimates from your own costs, split labor, material and equipment, and keep revisions in one place. Rex tracks change orders, chases open invoices and reports margin by job.
Which jobs have approved change orders not yet invoiced?5 jobs · $23,410Answered7:10 AM
Drafted 5 change-order invoicesQuickBooks drafts, waiting on youYour review7:18 AM
Split the Lakeview estimate by cost typeLabor, material and equipmentDone9:50 AMJob margin reportEvery Friday, 4:00 PMScheduledFriExample activity. Names and amounts are illustrative.
Where it slips
Margin disappears between the bid and the closeout.
- 01
Change orders on paper.
Approved in the field, priced in someone's head, never invoiced.
- 02
Revisions that start over.
Every scope change goes back into the estimator's queue.
- 03
Margin you learn at tax time.
Estimated cost in one system, actual cost in another, and no one comparing them.
Ask
Ask about any job, across every trade.
Rex reads estimates, change orders and accounting together, so cost questions get answered while the job is still running.
- Cost split by labor, material and equipment
- Unbilled change orders by job
- Closed jobs and margin by period
Analyzing your requestWorked for 3s
Material
Labor
EquipmentAct
Then it bills the change.
Rex drafts the change order and the invoice from your records. You approve, the client signs.
- Change orders sent for signature
- Invoices for approved changes
- Work orders drafted from the signed scope
Analyzing your requestDrafting an email0s Waiting for you11sHi Priya,
As discussed on site, here is change order 4 for the upgraded kitchen cabinets. It adds $4,860 and one week to the schedule.
You can review and sign from your phone. We'll order once it's signed.
Thanks,
Ridgeline Builders
How it works
From scope to closeout.
One scope for every trade, revised in place, with every change signed and billed.
01 · Scope
Every trade in one estimate.
Describe the job or import an existing scope, then price it from your own costs.
02 · Revise
Changes without the round trip.
Update the scope and rebuild the proposal without sending it back to the queue.
03 · Close out
Change orders signed and billed.
Clients sign changes on their phone, and Rex makes sure each one is invoiced.
Customers
From contractors on XBuild.
Customer-reported results and early-access findings. Early-access figures are live query outputs, not measured business results.
Your rules
Rex does the work. You keep the rules.
Drafts wait for you.
Follow-ups, invoices and work orders can wait as drafts until you approve them.
Inside your systems.
Rex reads and writes back to the CRM, accounting and email you already run. Nothing to migrate.
Every action on the record.
Approvals, permissions and an audit trail show what Rex did, when, and who signed off.
Questions
Common questions.
Does it replace my project management software?
No. Rex works inside the systems you already run and fills the gaps between them.
Can I bring in an existing scope?
Yes. Import the scope instead of retyping it, then price and revise it in XBuild.
Does it work for commercial jobs?
Yes. Commercial teams use XBuild to organize estimates by labor, material and equipment.
Will Rex contact clients without my OK?
Only if you allow it. Change orders, invoices and follow-ups can wait as drafts until you approve them.
