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Field Services

A Day in the Life with Hermes

Watch how field and operations teams collaborate seamlessly with an AI teammate living inside the apps they already use.

Type
HVAC and plumbing service
Size
22 trucks, 3 counties
Revenue
$4.2M service portfolio
Setting
Midwest residential and light commercial

Natively Supported Channels & Protocols

Microsoft Teams
Slack
Discord
Telegram
Signal
Webhooks
Email & SMS
  1. Resources
  2. A Day in the Life: Field Services
Jump To
1
MarcusHVAC Technician
2
JennaDispatcher
3
DavidService Manager
4
PriyaFacility Manager · Westgate Medical
5
RonParts Manager
WhatsApp 6:47 AM

Marcus, HVAC Technician

in the van, coffee in the cup holder, phone mounted on the dash

Marcus starts his day differently now. Before Hermes, his morning went like this: call the dispatcher for the first job address, thumb through the work order PDF, and hope the last tech's notes are still accurate. Today, the job file comes to him.

What Hermes Handled

  • Morning dispatch with unit history
  • Parts availability and warranty check
  • Wiring diagram lookup
  • Supply house reservation
  • Customer status update
  • System logging

The Impact

Marcus rolled with a complete job file and the right part before his first wrench turn. The customer knew exactly when to expect him. Jenna never had to field a single morning call from Truck 14. Twenty-two minutes saved before 8:00 AM.

Hermes Assistant
WhatsApp
Hermes
Morning, Marcus. Your first job today: 1428 Elm Street, the Wilkins residence. Recurring no-cool call on a 2019 Carrier split system. The last tech noted a refrigerant top-off three weeks ago and flagged a possible evaporator coil leak. I pulled the unit history, the parts diagram, and the warranty status. The coil is under parts warranty until November. Want me to check if the supply house has one in stock?
Yes. And send me the wiring diagram.
Hermes
Evaporator coil PN CAR-EC-3821A is in stock at Midwest Supply on County Line Road, 4 units available. Wiring diagram attached from the Carrier service manual, page 4-12. I also noted the customer has a 10:00 AM window expectation. Want me to text them a status update when you are en route?
Wiring diagram, Carrier service manual p4-12
Do it.
Hermes
Done. Coil reserved at Midwest Supply. Customer texted: "Marcus is on his way with the part needed to fix your AC. ETA 8:15 AM." Job logged as "en route with parts" in the dispatch system.
Message
Slack 2:31 PM

Jenna, Dispatcher

22 techs across three counties, three new calls in 15 minutes

Jenna's board is full: two techs called in sick, a commercial contract has a 4:00 PM SLA closing, and three residential calls just landed. In the old workflow, she would be on the phone nonstop. Today Hermes has already scanned the board.

What Hermes Handled

  • Real-time tech availability scan
  • Proximity-based dispatch recommendation
  • Skill-set matching
  • SLA monitoring and alert
  • Building contact retrieval
  • Multi-channel confirmation

The Impact

Three emergency dispatches routed in under two minutes while Jenna stayed on a commercial client call. No tech drove across town unnecessarily. The 4:00 PM SLA stayed protected. Jenna's phone did not ring once for this.

Slack
Hermes · 2:31 PMApp
Jenna, three new residential calls in the queue. I checked availability: Marcus finishes at Elm Street around 3:15 PM (19 minutes from the new call on Oak). Andre has a 4:00 PM SLA for the Lennox chiller at Westgate Medical. That job is on track. Tony is finishing early; his last call was a quick capacitor swap. Recommended dispatch: Marcus to Oak Street (closest, HVAC match), Tony to the no-heat on Division (closest, furnace certified), and hold the third call for Andre after Westgate unless you want me to check Mike's availability.
J
Jenna
Good. Send it. And remind Andre about the 4:00 PM SLA with the building engineer name.
HermesApp
All three dispatched and confirmed via WhatsApp to each tech. Andre's SLA reminder sent with the building engineer contact: Susan Park, (312) 555-0187. I will alert you at 3:40 PM if any completion runs late.
Email 4:18 PM

David, Service Manager

Friday, 22-truck P&L to review before the Monday ops meeting

David used to spend Friday afternoons assembling numbers from the dispatch system, checking parts invoices against jobs, and building slides. Now the picture is waiting for him in his inbox.

What Hermes Handled

  • Revenue-per-truck roll-up
  • Margin analysis with flags
  • First-time fix trending
  • Utilization calculation
  • Call-back tracking
  • Maintenance contract renewal alerts
  • Ops review slide pre-populated

The Impact

Ninety minutes of Friday number-crunching became a twelve-minute review. The ops review was ready before David left the office. He saw margin erosion on two jobs while there was still time to coach, not a month later when the P&L closed.

Hermes Assistant
Email
Hermes
David, here is the weekly portfolio summary for Week 26. Revenue per truck: 19 of 22 hit target; 3 under, with Marcus at 112% of plan. First-time fix rate: 78% for the week, up from 72% last month. Margin erosion flags: 2 jobs where parts cost exceeded estimate by more than 15%. Technician utilization: 71% (up 3 points from last quarter), with 2 techs flagged for excessive drive time. Customer call-back rate: 4.1%, down from 6.8% before the Hermes pilot. I pre-filled the Monday ops review slide with these figures. Please review the narrative and adjust the margin commentary before presenting.
Weekly ops review slide, pre-filled
Thanks. The margin commentary on jobs 847 and 851 needs adjusting. Those were warranty exceptions, not parts pricing errors.
Hermes
Updated. I recategorized those two as warranty exceptions and adjusted the narrative. The margin erosion now reflects only the pricing variance on the three remaining flagged jobs. Slide is ready for Monday.
Message
SMS / Text 3:15 PM

Priya, Facility Manager · Westgate Medical

needs to know if her chiller is getting fixed today

Priya manages a medical office building with strict temperature requirements. She has a 4:00 PM maintenance window and needs to know the status without calling the service office.

What Hermes Handled

  • Real-time status confirmation
  • Technician and part verification
  • Service agreement lookup
  • Coverage confirmation
  • Building engineer notification

The Impact

Priya got accurate, branded answers in seconds without a phone call. The service office was never interrupted. The customer feels looked after, and the service agreement value is reinforced on every interaction.

Hermes Assistant
SMS / Text
Hi, checking on the status for the Lennox chiller. My building engineer needs to confirm the 4pm window is still on.
Hermes
Hi Priya, Andre is on schedule for your 4:00 PM window. He has the replacement control board and the full unit history. Your building engineer, Susan Park, has been notified. The job is logged at 2 hours estimated with the right part in hand.
Great, thanks. Can you confirm if this is still under the service agreement?
Hermes
Yes, your Lennox chiller is covered under the Premium Service Agreement through March 2027. This repair: control board replacement, parts and labor are fully covered. No charge order needed.
Perfect. Thank you.
Message
Slack 9:22 AM

Ron, Parts Manager

tracking inventory across three supply houses and 22 trucks

Ron keeps the trucks stocked and the supply houses coordinated. His biggest fear is a technician showing up at the counter for a part that should have been reordered last week.

What Hermes Handled

  • Inventory threshold monitoring
  • Reorder form drafting
  • Vendor lead time comparison
  • Multi-vendor sourcing recommendation
  • Usage trend tracking

The Impact

Ron catches shortages before a truck rolls empty-handed. No technician waits at a supply counter for a part that should have been reordered. The parts spend stays optimized across vendors.

Slack
Hermes · 9:00 AMApp
Morning, Ron. Inventory alert: 3 SKUs below reorder threshold: CAR-EC-3821A evaporator coils (2 remaining, 4 used this week), Lennox control boards LEN-CB-992 (1 remaining, 3 techs flagged for upcoming chiller PMs), and contactor kits CKT-440 (0 remaining, Marcus used the last one yesterday). I drafted reorder forms for all three with the preferred vendor pricing. Want me to send them?
R
Ron
Send the reorders. And what's the lead time on those contactor kits?
HermesApp
Contactor kits CKT-440: Midwest Supply has 24-hour delivery, Grainger has same-day pickup at their Elk Grove location (8 in stock, slightly higher unit price). I'd recommend Grainger for 4 units to cover this week, and the Midwest Supply order for the monthly restock. Reorders sent to both vendors.
R
Ron
Good call. Do it.

Behind the magic

The exchanges above look simple by design. What makes them trustworthy in real utility operations is the engineering underneath, and it is exactly what a disciplined rollout is built to get right.

Meets people in their channels

WhatsApp for the technician in the van, Slack for the dispatcher and service manager, SMS for the customer. No new app, no training curve, which is why it actually gets used.

Grounded in your service systems

Connected to dispatch, parts inventory, unit history, warranty records, and customer databases so answers come from real systems, not a generic model.

Cites its sources, admits limits

Parts availability points to supply house and quantity. Warranty status cites install date and coverage. When Hermes is not sure, it says so and routes to the right person.

Permissions and audit trail

Who can dispatch, message customers, and view financial data is set by role. Every exchange is logged for compliance and service recordkeeping.

Human in the loop

A customer status text, a dispatch recommendation, a margin commentary: drafted by Hermes, approved by a person. The human always has the final say.

Proactive, not just reactive

Hermes pushes the morning dispatch, the SLA alert, the parts reorder, and the contract renewal. The team is told before they have to ask.

Want to see this on one of your corridors?

The fastest way to evaluate an AI teammate is to scope a real pilot against a real workflow. The Energy AI Teammate Playbook gives you the blueprint for a disciplined 30-day rollout.

Get the Playbook

Illustrative concept. Characters, dialogue, figures, and the operational corridor are composite and for demonstration only, and do not represent a specific engagement or a guaranteed result.