Most "free estimating software" isn't free. It's a 14-day trial with a credit card form waiting at the end, or a free plan that stops at 30 jobs a month. A few tools are genuinely free forever, and they're useful for a solo contractor sending a handful of quotes a week. None of them do construction takeoff or assemblies; for that you're into paid construction estimating software. Below is what's actually free as of October 2026, what's only a trial, and exactly where each one breaks.
What contractors need from free estimating software
A free tool has to do three things to be worth the setup time: hold your saved prices so you're not retyping them, send a professional quote the customer can approve, and turn that quote into an invoice without re-entry. Everything on this page does those three. What none of them do is the construction part: takeoffs from plans, assemblies that turn "120 feet of fence" into posts and concrete, or job costing against the estimate.
Be clear about which problem you have. If it's "my quotes look like a text message and I lose track of who said yes," free software can solve it. If it's "I underbid jobs because my math is off," that's a pricing problem, and a free app won't fix it.
Free plans versus trials
This is where most "free" lists mislead you. As of October 2026:
- Free with no time limit: Zoho Invoice, ServiceM8 Free, Square Invoices' free plan, Roofr Starter.
- Trials only: Jobber (14 days), Housecall Pro (14 days), Joist (14 days), Contractor Foreman (30 days), Kickserv (30 days).
- Gone: Joist's free plan and Workiz's old free Lite plan have both been removed.
A trial is fine if you're going to pay. Just don't build your whole customer list into one assuming it stays free.
How the picks compare
Zoho Invoice and Square Invoices are invoicing tools with estimates attached. Zoho gives you two users and a generous invoice allowance; Square makes card payments easiest but saves milestone billing for its paid plan. ServiceM8 is the only free plan that also schedules jobs, and its 30-job cap is the reason it won't last you past one person. Roofr is free only in the narrow sense that roofers pay per report instead of per month.
A free setup that actually works
Here's the zero-dollar setup we'd suggest for a solo contractor. Keep your pricing math in a spreadsheet: one tab per job type, with material quantities, your cost, labor hours and markup. That's where the estimating happens, and a spreadsheet does it better than most free apps. Then put the sell prices into Zoho Invoice as saved items and send the customer-facing quote from there, so it looks professional, gets accepted online and turns into an invoice.
Say you're a one-person painter. The spreadsheet works out that a 12 by 14 bedroom, walls and ceiling, two coats, takes about six hours and three gallons of paint. Zoho Invoice sends "Bedroom repaint, walls and ceiling" at your price. That's a real system, and it costs nothing until you hire.
What breaks first on a free plan
- Users. Zoho stops at 2, ServiceM8 Free at 1. Hire a second tech and you're paying.
- Volume caps. 30 jobs a month on ServiceM8 Free is about seven a week.
- Payment fees. Free tools still charge per card payment; on $20,000 a month in card payments, a few percent is real money.
- Bigger-job billing. Deposits and progress payments are often paid features.
- Support. Expect help articles, not a phone number.
- Exports. Confirm you can export customers and items before you load them.
What it costs once you outgrow free
| Shop size |
Cheapest workable option (as of October 2026) |
| 1 person |
$0: Zoho Invoice or ServiceM8 Free |
| 5 people |
ServiceM8 Starter $29/mo (50 jobs) or Growing $79/mo (150 jobs); Jobber Connect $149/mo annual |
| 15 people |
ServiceM8 Premium $149/mo (500 jobs); Jobber Connect $299/mo annual |
Free is a good starting point for a one-truck operation and a poor long-term plan for a crew. When you're ready to look past estimating at the whole system, our guide to software for contractors and trades lays out what to buy first and what can wait.
