Service Fusion is flat-rate field-service software for home-services trades. Here's an honest, side-by-side look at how it compares with MEPSub — the all-in-one platform built by an MEP/HVAC contractor to run both your project and field-service work.
MEPSub adds the entire construction/project side Service Fusion lacks, has a free tier vs the $208 floor, self-serve signup, and includes SMS/AI/portal instead of paid add-ons.
Start free →For a pure high-headcount service fleet, Service Fusion's unlimited-user flat rate and deep QuickBooks sync are hard to beat.
| Capability | MEPSub | Service Fusion |
|---|---|---|
| Category | All-in-one (service + project) | Field service |
| Best fit (size) | Solo–mid MEP | Small–mid |
| Primary trades | MEP/HVAC/mechanical | HVAC/plumb/elec |
| FIELD SERVICE | ||
| Field-service side | ✓ | ✓ |
| Dispatch / scheduling | ✓ | ✓ |
| Service tickets | ✓ | ✓ |
| Invoicing & payments | ✓ | ✓ |
| Built-in phone system | ✓ MEPSub Phone | ~ ServiceCall.ai add-on (paid) |
| SMS / texting | ✓ | ~ |
| PROJECT / CONSTRUCTION | ||
| Project/construction side | ✓ | ✗ |
| Submittals (commercial) | ✓ | ✗ |
| Takeoffs / estimating | ✓ | ✗ |
| Project management | ✓ | ✗ |
| PLATFORM | ||
| Customer portal | ✓ | ~ |
| AI features | ✓ | ~ |
| QuickBooks | ✓ | ✓ |
| Built for MEP | ✓ | ✗ |
| PRICING & TERMS | ||
| Free tier | ✓ | ✗ |
| Public pricing | ✓ | ✓ |
| Entry price | Free / from $15 user | $208/mo |
| 10 users — one side (service or projects) | $270/mo | ~$208–533/mo |
| 10 users — service and projects | $330/mo | Needs a second system |
| Setup / onboarding fee | None | None |
| Contract | Month-to-month | Month/annual |
Service Fusion details are based on public information as of 2026 — verify current pricing with the vendor. MEPSub pricing is live from our own plans.
Most MEP contractors run service calls and project work. Service Fusion is built for field service — here’s what that means day to day.
Is Service Fusion cheaper? For a small crew that only does service work, it can be. MEPSub is priced for contractors who run both service and project work — adding the second side is one more pack ($6/user) instead of a second system, a second login and double entry.
Start free with up to 3 users and add packs as you grow. Built for MEP, month-to-month, no setup fee.
Comparisons go stale fast. These are the newest parts of MEPSub — the full list is in the changelog.