Charlotte beside a row of houses, some ringing, one slipping to voicemail. voicemail

Charlotte Research — Q2 2026

State of Home-Services Calls

Charlotte’s quarterly research report on inbound HVAC, plumbing, and electrical phone calls in the United States. Sixteen stats covering after-hours share, recovered revenue, language split, hour-of-day density, and the deliberate AI miss-rate baseline that Charlotte publishes alongside the 100% miss-rate at the no-human-on-duty comparison.

Charlotte ResearchCross-Tenant Telemetry Aggregation, Charlotte AI, Inc.

Published: 2026-05-14 · Last reviewed: 2026-05-14

Share of After-Hours Calls by Trade

HVAC, plumbing, and electrical operators receive a meaningful share of inbound phone calls outside posted business hours. The Charlotte cohort isolates the after-hours share — calls arriving before 8am, after 6pm, or on Saturday and Sunday — per trade. The headline finding answers how much revenue capacity solo operators leave unattended each week when no human receptionist is on duty after dinner.

[Sample: N tenants pending publication]

Average Dollar Value of a Recovered After-Hours Job

Recovered revenue measures the dollar value of after-hours jobs Charlotte books that would otherwise go to voicemail. The methodology multiplies booked after-hours jobs by the trade's average job value, hybridized with US Bureau of Labor Statistics occupational pay data so the denominator is sector-anchored rather than tenant-anchored. The figure isolates the marginal revenue Charlotte recovers, not the operator's gross.

[Sample: N tenants pending publication]

Share of Inbound Calls in Spanish

Charlotte's bilingual capability — English plus Spanish — is load-bearing for trades operators in many United States metros. The language-detection telemetry surfaces what share of inbound calls Charlotte handles in Spanish across the cohort. The figure has broader press relevance to small-business policy and bilingual customer-service coverage in HVAC, plumbing, and electrical service work.

[Sample: N tenants pending publication]

Share of Emergency Calls Arriving Outside Business Hours

Emergency-flagged calls — those matching the allowlisted emergency-keyword set for HVAC, plumbing, or electrical work — are time-stamped at receipt. The after-hours emergency share counts what fraction of those emergency calls land outside posted business hours. The number quantifies the overlap between two structural problems trades operators face: emergencies and after-hours.

[Sample: N tenants pending publication]

Average Call Duration by Trade

Average call duration is reported per trade — HVAC, plumbing, electrical — with median and 95th-percentile bands. Duration matters as a unit-economics lever: Charlotte's per-minute inference cost scales linearly with call length, and longer calls correlate with more complex booking intent. The percentile breakdown surfaces the long tail that drives infrastructure-cost variance.

[Sample: N tenants pending publication]

Average HVAC, plumbing, electrical call duration in seconds (placeholder)0HVAC0PLUMBING0ELECTRICAL
Average call duration per trade. Sample pending publication.
Average HVAC, plumbing, electrical call duration in seconds (placeholder)
PeriodSeconds
HVAC0
PLUMBING0
ELECTRICAL0

Hour-of-Day x Day-of-Week Call Distribution

The hour-of-day heatmap renders a 24-hour by 7-day grid of inbound call density. Each cell holds a non-negative call count anonymized to the cohort level. Two patterns the heatmap surfaces: the weekday business-hours peak shared across HVAC, plumbing, and electrical trades, and the after-hours emergency bump that is the single strongest argument for 24/7 AI receptionist coverage.

[Sample: N tenants pending publication]

Inbound HVAC, plumbing, electrical call density by hour of day and day of week (placeholder)0h3h6h9h12h15h18h21hMonTueWedThuFriSatSun10121418202224410121418202224410121418202224410121418202224410121418202224466
Mon–Sun rows; 0h–23h columns. Cell value is inbound call count. Sample pending publication.
Inbound HVAC, plumbing, electrical call density by hour of day and day of week (placeholder)
Day0h1h2h3h4h5h6h7h8h9h10h11h12h13h14h15h16h17h18h19h20h21h22h23h
Mon0000000001012140182022240000040
Tue0000000001012140182022240000040
Wed0000000001012140182022240000040
Thu0000000001012140182022240000040
Fri0000000001012140182022240000040
Sat000000000000006000000000
Sun000000000000006000000000

Day-of-Week Call Distribution

Day-of-week distribution counts inbound calls per weekday in the Charlotte cohort. Monday volume typically reflects accumulated weekend demand for HVAC, plumbing, and electrical service. Weekend volume is structurally lower but skews more emergency-flagged than weekday volume — the credibility wedge for after-hours coverage.

[Sample: N tenants pending publication]

Inbound HVAC, plumbing, electrical call volume by day of week (placeholder)Mon0Tue0Wed0Thu0Fri0Sat0Sun0
One bar per weekday across the Charlotte cohort. Sample pending publication.
Inbound HVAC, plumbing, electrical call volume by day of week (placeholder)
CategoryInbound calls
Mon0
Tue0
Wed0
Thu0
Fri0
Sat0
Sun0

Warm-Transfer Rate by Trade

Warm-transfer rate measures the share of inbound calls Charlotte routes to a live human operator rather than booking the appointment fully autonomously. The figure is reported per trade — HVAC, plumbing, electrical — since transfer patterns differ by emergency frequency, dispatch complexity, and the operator's preference for human triage on uncertain calls.

[Sample: N tenants pending publication]

Share of Calls That Book Versus Only Inform

Charlotte distinguishes booking calls — those resulting in a scheduled appointment — from informational calls that end without a calendar entry. Booking share per trade isolates Charlotte's revenue-driving share of inbound volume from informational calls (price quotes, follow-up questions, service-area checks) that are still answered but do not generate immediate revenue.

[Sample: N tenants pending publication]

Top Emergency Keywords by Frequency

The emergency-keyword frequency table reports the most-frequent allowlisted emergency keywords across HVAC, plumbing, and electrical calls. No verbatim caller transcripts are surfaced — only the allowlisted short phrases that match a per-trade emergency category. Keywords like no-heat, burst-pipe, and burning-smell drive Charlotte's after-hours pager logic.

[Sample: N tenants pending publication]

AI Miss-Rate (Adverse Stat)(adverse, by design)

Charlotte does not handle every call perfectly. The AI miss-rate counts calls Charlotte dropped or abandoned, expressed as a fraction of total inbound. The figure is published deliberately as an adverse stat: the relevant benchmark for a solo HVAC, plumbing, or electrical operator after hours is a 100% miss-rate at the human baseline, since no human is on duty to answer the phone.

[Sample: N tenants pending publication]

Human-vs-AI Bridge Time on Emergency Calls

Bridge time is the median seconds between an emergency call arriving and a human being on the line — Charlotte's AI bridge time versus the manual-receptionist baseline. The AI cohort measures Charlotte's autonomous bridge time on flagged emergency calls; the human-baseline cohort measures comparable manual-dispatch bridge time. The gap is the operational case for AI-first emergency triage.

[Sample: N tenants pending publication]

Share of Calls Outside the Operator's Stated Service Area

Out-of-service-area share counts inbound calls from phone-number area codes outside the operator's stated service radius. For HVAC, plumbing, and electrical operators serving a specific metro, the figure quantifies the share of inbound demand Charlotte must triage as out-of-area — referring callers to neighboring operators rather than booking the appointment.

[Sample: N tenants pending publication]

Share of Calls From Prior-Customer Numbers

Repeat-customer share measures the fraction of inbound calls whose phone number matches a prior caller for the same operator. For HVAC, plumbing, and electrical operators, repeat-customer share is the most direct signal of operator retention quality and the long-term unit economics of trades service work.

[Sample: N tenants pending publication]

Average Customer Satisfaction on Completed Jobs

Customer satisfaction is reported per trade where the operator collects post-job CSAT scores. The figure is only emitted for trades whose sample count clears the cohort floor — many operators do not collect CSAT systematically, so this stat carries explicit sample-count framing. CSAT is included to balance the operational stats with a customer-outcome anchor.

[Sample: N tenants pending publication]

Cohort Disclosure

The Charlotte cohort underlying this report comprises HVAC, plumbing, and electrical operators using Charlotte during the Q2 2026 window. Each downstream stat is reported only when the underlying cell clears the k-anonymity floor of ten distinct tenants. The cohort disclosure is the methodology anchor for every other stat on this page.

[Sample: N tenants pending publication]

Outside-Expert Perspective

Charlotte solicits perspective from named outside editors and analysts on each quarterly report. The slots below are placeholders pending confirmed quotes from the cited publications. Fabricated quotes would compromise the journalist relationships this report exists to build, so we render placeholder cards rather than invent attribution.

Quote pending from Editor at ACHR News.
Quote pending from Editor at Plumbing & Mechanical.
Quote pending from Independent analyst at Home Services Sector Research.

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