Hi there, Cwipf.
I'm here to help you track costs for internal construction projects.
In QuickBooks Desktop (QBDT), you can utilize the Job Costing feature that'll help you track expenses for a job and compare those expenses to your revenue.
To have an accurate record of your job costs, follow these steps:
For in-depth instructions, refer to the article: Track job costs in QuickBooks Desktop.
After that, you can run job costing reports to check how your business is doing on a job-by-job basis. It also helps you to easily determine which job is profitable and which is not.
Post again here if you need more help in tracking costs for internal construction projects in QuickBooks. I'll gladly help you resolve them. Stay safe and have a great week ahead!