Complete job documentation without the paperwork.
Rainthorn Field is being designed so photos and a short voice note become a structured job record — without making technicians spend their time typing on small screens.
How technicians interact with Rainthorn Field
A mobile-first, single-screen workflow designed for gloved hands, loud mechanical rooms, and zero patience for typing.
Johnson Residence
Job #3812 · Carrier 3.5-Ton Heat Pump Diagnostic
Voice summary recorded
0:24 duration · transcribed
Surfaced prompt: "Did the system operate normally after replacing the capacitor?"
Failed 45/5 μF dual-run capacitor (open circuit on HERM terminal).
Replaced failed capacitor with new 45/5 μF 440V unit. Cleaned electrical cabinet and tested compressor running load amps (RLA).
System operating normally. Compressor drawing 12.8A RLA (spec: 14.1A). Delta-T verified at 18°F.
Evaluate upstairs airflow and return static pressure during seasonal maintenance.
Human review required prior to customer delivery
Technicians are hired to solve complex mechanical problems, not type paragraphs in a driveway.
At the end of an exhausting service call, most field service technicians face a difficult trade-off: spend 15 minutes typing detailed notes on a touchscreen, or tap out a few hurried words: "Replaced capacitor, system working."
The consequences ripple across the entire contracting business:
Rainthorn is not simply an AI note writer. It verifies completeness.
Generic transcription tools summarize whatever was said — even when critical diagnostic information was omitted. Rainthorn is being designed to understand HVAC service logic and actively surface what is missing before the technician drives away.
"Found a bad capacitor on the heat pump. Replaced it."
Missing: Final operating condition & verification of cooling cycle.
*Illustrative product direction. Designed to ensure defensible, audit-ready records.
When a homeowner claims three weeks later that their system stopped working, or a commercial property manager audits maintenance records, the contractor has complete, verifiable proof of work:
- Before and after photos with timestamps
- Exact component specifications and replacement serials
- Measured diagnostic values (pressures, amps, delta-T)
- Explicit technician sign-off on operating status
What one capture is being designed to produce
A single short capture is being designed to yield tailored outputs for both back-office operations and customer-facing transparency.
Technical Audit Trail
Detailed mechanical notes, capacitor microfarad ratings, compressor amps, refrigerant pressures, and diagnostic steps for future service visits.
Homeowner-Friendly Report
Jargon-free explanations describing what failed, what was repaired, and why the system is now operating safely and efficiently.
Clear Line Item Scope
Crisp, defensible work descriptions formatted directly for billing, reducing customer pushback and billing inquiries.
Before & After Records
Time-stamped evidence matching problem components to replacement parts and verified serial tags.
Future Work Opportunities
Structured follow-up items for duct cleaning, system replacement, or indoor air quality upgrades passed cleanly to sales estimators.
Asset Registry Records
Make, model, serial number, age, and refrigerant type logged systematically across recurring commercial and residential accounts.
Works in basements, mechanical rooms, and dead zones
Rainthorn Field is being engineered with a local-first storage architecture. Technicians can snap photos and record summaries deep inside metal-clad mechanical rooms without a cellular connection. All data queues securely on the device, compresses automatically, and syncs to the cloud when connectivity returns.
The technician stays in control of the final record
Automation prepares the documentation; the technician verifies it. Rainthorn is being designed to present the assembled job record on a single confirmation screen. The technician reviews, approves, or taps to adjust before the record is saved and transmitted. Nothing reaches the customer without technician review.
Designed to work alongside your existing field software
Rainthorn Field is not a dispatch board, a scheduling calendar, or an accounting suite. We are not trying to replace the operational software your company already runs on.
Our long-term roadmap is designed to feed clean, structured documentation and photo packages directly into systems such as ServiceTitan, Jobber, Housecall Pro, FieldEdge, and Service Fusion. You keep your dispatch and billing workflows intact; your technicians spend less time on paperwork.
*Vendor names are referenced as illustrative software environments. Rainthorn Field is in alpha; official integration availability will be announced alongside alpha milestones.
Apply to join the Rainthorn Field Alpha
We work closely with service contractors and HVAC operators to refine field capture workflows. Please share a few details about your team.
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Thank you for applying to the Rainthorn Field Alpha. We personally review each application against our current alpha cohorts and will be in touch shortly.