Yeah, it looks too good to be true.
That's what three products — AI Receptionist, FSM, Vehicle GPS — each saving you money on top of an invoice that's already half what you're paying today adds up to. Stack all three and the payback moves faster than any single point solution can match.
The defaults lean optimistic on purpose — turn any number up or down until it matches your shop, not ours. Need to convince a partner or your accountant? That's exactly what this is built for: editable, footnoted, and one click from landing in their inbox.
Start here
Seeds reasonable defaults for AI Receptionist (1 savings input), Field Service Management (3 savings inputs), and Vehicle GPS (3 savings inputs). Every input is editable. Tune anything you don't buy.
01 · AI Receptionist
$300 / mo flat · no contract
Buy this on its own. Most operators do.
Answers calls 24/7. Unlimited leads captured. Unlimited users. No per-seat fees, no contract. Some customers never need anything else — recovering lost calls alone covers Servinix several times over.
AI Receptionist monthly recovery
$9,858/ month
A1 · Lead recovery
Capture the calls you're losing.
$9,858
/ month
Sources: Invoca, Home Services Call Analytics 2024 (27% missed, 47% leads, 29% close, $1,200 avg job); CallRail AI Receptionist 2025 (~70% recovery).
02 · Field Service Management
$20 / tech / mo · no contract
Add the operations layer when you're ready.
Dispatch, route optimization, payments, and invoicing — plus real-time technician tracking via phone GPS, included with FSM and no hardware required. Most operators add this within 30 days of starting with the AI Receptionist — contracts are short, setup is one day.
FSM monthly recovery
$39,306/ month
F1 · Field accountability
Stop paying for windshield time.
$3,080
/ month
Phone GPS verifies time-on-site, drive time, and idle — included with FSM, no OBD hardware required. Operators typically report double-digit labor savings once payroll matches reality.
F2 · Operations lift
More jobs per day. Fewer miles.
$33,000
/ month
Source: Aberdeen Group, Field Service Optimization Benchmark — ~20% jobs/day lift. Margin per job is what's left after parts and labor. Routing efficiency only becomes revenue if you have real unmet demand to fill the freed-up capacity with — it creates room in the schedule, not new customers. If you're not currently turning away or delaying jobs for lack of capacity, set 'Unmet demand' to No and this recovers $0.
F3 · Cash flow
Get paid in the field. Stop chasing checks.
$3,226
/ month
Source: Jobber Home Service Economic Report Feb 2025 — operators using online payments get paid 4× faster, 80% within 3 days. Bad-debt math models recovered receivables.
03 · Vehicle GPS
$50 device (once) · $15 / veh / mo · no contract
★ Launch rate Jul 15–Dec 31: $12.50 / veh — locked for life
Add OBD hardware for vehicle-level data.
Tech location is already covered by phone GPS in FSM. Vehicle GPS adds the signals only an OBD-II plug-in can see — fuel use, engine diagnostics, idle time, after-hours unauthorized use, crash detection. Install takes 30 seconds per truck.
Vehicle GPS monthly recovery
$1,218/ month
V1 · Fleet ROI
Cut fuel. Cut idle.
$358
/ month
Sources: Aberdeen Group GPS fleet study (13% fuel reduction); Geotab fuel-efficiency analysis (12% from idle, up to 14% via telematics); Samsara real-customer data (10–15%). Insurance: Nationwide Vantage 360 Fleet & Progressive Smart Haul rate cards (5–10% discount). Premium baseline: Construction Coverage 2026 commercial auto report — $1,200–$1,800/yr per service pickup. Requires OBD-II hardware — phone GPS in FSM does not produce these signals.
V2 · Maintenance
Catch problems early. Skip the tow bill.
$160
/ month
Sources: Geotab maintenance study (up to 14% reduction citing OECD); Azuga ROI calculator (8% reduction; 43% fewer breakdowns); GPS Insight ($200–$400/truck/year savings). Maintenance baseline: Oxmaint Fleet Maintenance Costs 2025 — $3,500–$6,500 per light-duty truck/year. Servinix's OBD-II reads engine codes Samsara reserves for higher tiers — diagnostic catch is bundled, not an add-on.
V3 · Loss prevention
Fewer accidents. No after-hours joyrides.
$700
/ month
Sources: Samsara Fleet Safety Report 2024 (35–40% typical crash reduction; 73% with full AI dash cam — we anchor lower at 30% because Servinix's base SKU does not include AI cameras); Geotab insurance-cited 45% accident reduction; Clean Fleet Report (per-incident loaded cost $30K–$135K). Unauthorized use: Responsible Fleet 2025 (15–20% of untracked-fleet mileage is personal/unauthorized). Servinix counts wear/depreciation only — fuel from after-hours use is already captured in V1.
Take it with you
Email yourself the breakdown.
Or send it to the partner / spouse / accountant who needs to see the math too.
Running total
$50,382/mo
$604,582/yr
How this is calculated
Seven levers, three products, no black box
The AI Receptionist section models lead recovery: your missed-call volume, close rate, and average job value against a 65–75% AI answer-and-book rate. The FSM section models tech accountability (padded drive/service time recovered), route optimization (extra jobs fit per tech per day), and cash flow (bad debt recovered through in-field collection). The Vehicle GPS section models fuel, insurance, maintenance, and loss prevention against published third-party telematics studies — not Servinix-specific marketing numbers.
Every input is yours to change. Where a number comes from an outside source, the calculator prints the citation as a footnote right under that lever — so you can check our math instead of taking it on faith.
FAQ
About this calculator
What is the ROI of an AI answering service for a field service business?+
The Servinix AI Receptionist costs $300/mo flat and typically recovers 65–75% of missed calls that would otherwise go to voicemail — for most field service businesses, roughly 4 recovered missed calls a week covers the entire monthly cost. Every additional booked job past that is added revenue, which is why the AI Receptionist is usually the fastest-payback module on this page.
Where do the fleet GPS savings numbers come from?+
The fuel, idle-time, insurance, and maintenance percentages behind the Vehicle GPS section are pulled from published third-party studies — Aberdeen Group and Geotab on fuel/idle reduction, Nationwide Vantage 360 and Progressive Smart Haul on telematics insurance discounts, and Geotab, Azuga, and GPS Insight on maintenance savings from early OBD-II diagnostics. Full source citations are printed as footnotes under each lever in the calculator.
How is the route optimization and tech accountability savings calculated?+
Those two levers don't rely on outside benchmarks — they're plain arithmetic built from numbers you enter: tech count, extra jobs per day, margin per job, padding minutes recovered, and hourly labor rate. Route optimization is also gated behind a direct question — do you currently turn away or delay jobs for lack of capacity? Routing efficiency only turns into revenue if there's real unmet demand to fill; if you say no, that lever recovers $0 instead of assuming the extra capacity sells itself. Change any input and the total recalculates live, so you can stress-test the estimate against your own operation instead of trusting a black box.
Is this real Servinix customer data, or an estimate?+
It's a model, not a guarantee — built from your own inputs plus the third-party industry studies cited above. Servinix doesn't yet have a large enough base of live customer ROI data to report instead. Treat the total as a starting point for your own math, not a promised outcome.