For a small shop bidding a few jobs a month, often yes, if the spreadsheet is built carefully and checked. It starts to cost you when the jobs get bigger or more frequent: formula errors nobody catches, no labor database behind it, versions emailed back and forth, and addenda that mean redoing counts by hand. That's when estimating software pays for itself.
A row left out of a total, a copied formula pointing at the wrong cell, a markup applied twice. Spreadsheets don't warn you, and the error goes out with the bid.
No labor database
Every labor unit is typed by hand or copied from the last job, so units drift and nobody knows which one is right.
Versions
Estimate_final_v3_REAL.xlsx. When two people work on a bid, it's hard to know which file has the latest prices.
Addenda
When an addendum changes sheets, you recount by hand and hope you changed every affected line.
If you stay in Excel, protect yourself
Lock the formulas, and keep inputs in separate cells from calculations.
Add a check total that compares the sum of the sections with the grand total.
Keep one master template, and start every job from a fresh copy.
Date every price, and note where each labor unit came from.
Have someone else check the summary before the bid goes out.
Questions estimators ask
When should I switch from Excel to estimating software?
When you're bidding more jobs than you can check carefully, when more than one person works on a bid, or when you've lost a job, or won one at a loss, because of a spreadsheet error.
Can I keep my spreadsheet and still get a check?
Yes. Upload your own estimate with the tender package and Bidprobe's bid check reviews it against the documents, whatever program built it.
Does Bidprobe work with Excel?
Yes, both ways. The bid check reviews an estimate you built in a spreadsheet, and Bidprobe's own estimate, priced with your labor units and your supplier's prices, downloads to Excel.
Keep your spreadsheet, or try the estimate.
One free bid check on every new account, no card required.