What's the difference between a CRM and an ERP?
A CRM tracks customers and jobs. An ERP runs your entire business—customers, jobs, inventory, accounting, payroll. For most small contractors, you need a CRM. We'll explain the difference and what that means for you.
CRM is about managing customers and sales
A CRM stores customer contact info, job history, and communication notes in one place. When a customer calls, you see their past jobs, what they paid, when you last serviced them. You can track estimates, follow up on quotes that didn't close, and know which customers are due for maintenance. For a concrete contractor, a CRM might store that Mrs. Johnson had her driveway poured in 2019, cost $4,200, and you've done a crack seal since then. When she calls about a new patio, that's all there. No digging through old emails or notebooks.
ERP manages your entire operation
ERP stands for Enterprise Resource Planning. It touches everything: customer data, job scheduling, inventory tracking, equipment costs, payroll, accounting, and financial reporting. ERPs are built for larger operations with complex supply chains, multiple crews, warehouses, and separate departments. A plumbing contractor with 50 employees across three cities might use an ERP to track which van has which parts, pay 15 technicians weekly, manage accounts payable to suppliers, and generate profit-and-loss statements. The ERP connects sales to operations to finance in one system.
Why most small contractors pick CRM
If you're solo or run 2-10 people, you don't need ERP. You're not managing three locations or a warehouse. You don't have a payroll department separate from your field operations. Your accounting probably goes to a bookkeeper or QuickBooks. A CRM handles what matters: tracking leads, estimating jobs, remembering customer history, and following up on work. It's cheaper, simpler to learn, and faster to implement. You spend a day setting it up, not three months. You're not paying for features you'll never use.
When you might eventually need both
If you grow to 15-20 people across multiple crews, run high-volume jobs, or deal with material costs that vary month to month, you might add an ERP to handle inventory and accounting complexity. But you'd typically keep your CRM too—the ERP runs the back office, the CRM stays in front of your customers. For now, don't overthink it. Focus on a CRM that tracks jobs, customers, and estimates. Make sure it syncs with whatever accounting software you're already using.
Bottom line
Get a CRM to manage customers and jobs. Skip ERP unless you're managing dozens of employees or complex inventory. Most contractors your size solve 80% of their problems with just a CRM and QuickBooks.