Most businesses end up with three systems that each half do the job, and staff bridging the gaps with spreadsheets, re-keying and phone calls. An ERP or CRM built for you removes the bridging rather than adding a fourth system to it.
We start by following the work, not by writing a specification. Where an order gets typed in twice, where somebody keeps a private spreadsheet, where a job stalls waiting on a call. Those are the things worth building out, and everything else can wait.
It connects to what you already run, usually your accounts package and often a supplier feed or warehouse system, because replacing everything at once is slower, dearer and riskier than replacing the part that hurts. What you end up with is documented and in your accounts, so another developer could take it on.
Bring us a plan or just an idea. We will arrange a discovery meeting with you to go through it.