Expert guide

HVAC & Field Service Dispatch ERP

PM contracts, technician dispatch, and billing in one owned database

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Looking for the service overview? Start with our custom ERP landing page for scope, pricing approach, and FAQs — then use this article for operational detail and build decisions.

Built on tools your team already trusts

  • Access
  • Excel
  • SQL
  • Power BI
  • Apps Script

Commercial HVAC and field service companies juggle preventive maintenance contracts, emergency dispatch, truck parts inventory, and billing that must sync to QuickBooks. Searching for HVAC preventive maintenance contract database software or custom field service dispatch and billing ERP usually means field-service SaaS is too expensive per technician — and the office still runs dispatch in Google Sheets.

Where field-service SaaS falls short

Per-technician licensing adds up fast for 15–40 tech fleets. Generic apps handle tickets but fight your contract tiers, parts catalog, and accounting mapping. Teams end up with a Google Sheets dispatch template with automated notifications duct-taped to a billing system — double entry everywhere.

  • PM contract revenue leaks

    Missed visits and unbilled maintenance erode margin before renewal season.

  • Dispatch is reactive

    Skill, zone, and parts-on-truck rarely drive assignment — group texts do.

  • Truck stock is opaque

    Warehouse does not know what each van consumed until paperwork returns.

  • QuickBooks re-keying

    Completed work orders become invoices twice — field app, then accounting.

What a custom field service ERP includes

Our custom field service operations and dispatch ERP unifies:

  • Preventive maintenance contracts

    Asset registers, visit cadence, tiered pricing, and auto-generated work orders before due dates.

  • Dispatch boards

    Office scheduling plus optional Google Sheets dispatch views with Apps Script alerts.

  • Mobile work orders

    Labor, parts, photos, and customer signature on phone-friendly forms.

  • Service vehicle inventory tracking database

    Issue parts from truck stock, transfer between vans, reorder against min/max.

  • QuickBooks sync

    Custom work order management software with QuickBooks sync — customers, invoices, time.

Google Sheets dispatch with real automation

Not every team wants a heavy dispatch UI day one. We automate Google Apps Script on Sheets: assign tech, email customer ETA, log status back to Access or SQL. It is a pragmatic bridge — not a permanent spreadsheet trap. Technical detail: QuickBooks integration with Access.

Own the database — skip per-tech SaaS fees

Field-service SaaS at $80–$200 per technician monthly is $48,000–$120,000 over five years for a 25-tech fleet — and you still do not own the workflow. A custom Access and SQL build is fixed-scope. You control dispatch rules, contract logic, and accounting mapping.

Technician UX that gets adopted

Technician screens show today's route, one-tap job start, parts from truck stock, and signature capture. Built for vans and job sites — not cubicle ERP certification programs.

Related manufacturing ERP pages

Plants with shop-floor production needs: job-shop ERP, packaging ERP, batch ERP.

Get started

Quantify dispatch and billing manual work with the free Workflow Cost Audit, then visit HVAC and field service ERP services or contact us for a fixed-scope quote.