MIT/InsideSales Lead-Response Management Study
Dr. James Oldroyd (MIT Sloan), McElheran, Elkington — n=15,000 leads, 100+ companies, 3-year study
Contacting a web lead within 5 minutes makes them 21× more likely to qualify than contacting at 30 minutes. Foundational research on lead-response time elasticity.
Used for: Web Form Lead Activation leak math
CallBirdAI — Contractor Missed-Call Analysis
CallBirdAI (n=1,200+ contractors)
Average small-to-mid contractor loses $45K–$120K/yr to unanswered calls. 85% of callers who hit voicemail never call back — they book the next shop. Average HVAC missed-call cost: $1,200, up to $3,500 on replacement leads.
Used for: Receptionist leak recovery factor (40% conservative, BIA/Kelsey + Convirza historical context)
ALM Corp — Google LSA + Reviews Data
ALM Corp, Contractor Marketing Pros
Shops with 300+ Google reviews generate 1,046% more LSA leads than shops with <100. Mean: <100 reviews = 4.9 leads/month; 300+ = 56.2 leads/month. Local 3-pack businesses receive 126% more traffic.
Used for: Reviews leak math (review-velocity attribution model)
BrightLocal Local SEO Industry Survey 2024
BrightLocal
Per-review attribution value $50–$150 over 12 months. Top-quartile shops collect reviews on 5%+ of completed jobs.
Used for: Reviews leak math ($90 mid-range attribution)
Jobber 2026 Home Service Trends Report
Jobber Academy
Top-performing residential service shops win 60%+ of quotes. Industry baseline conversion 7.8%; plumbing / water treatment / outdoor services convert at 12–16%. Multi-touch follow-up systems boost close rates 8–28%.
Used for: Quote Follow-Up leak math (18% conservative chase recovery)
Relentless Digital — DB Reactivation Benchmarks
Relentless Digital (residential service DB reactivation math)
Reactivation campaigns are the highest-ROI marketing channel for most contractors. Sample math: 3,000-customer DB × 5% reactivation × $2,500 ticket = $375K/yr in pipeline already paid to acquire.
Used for: Dormant DB Reactivation leak math (3% mid-range conservative)
ACCA Service Mix benchmarks
Air Conditioning Contractors of America
HVAC trade-specific recurring-revenue and replacement-ratio medians.
Used for: HVAC calibration values (recurring %, install vs service mix)
NATE technician productivity reports
North American Technician Excellence
Billable hours per technician per week benchmarks. First-time fix rate distributions by trade.
Used for: Field-ops benchmarks (HVAC, electrical)
NRCA contractor operations data
National Roofing Contractors Association
Roofing-specific close rates, repeat-customer ratios, install ticket benchmarks.
Used for: Roofing calibration values
BPI building-performance standards
Building Performance Institute
Service-call to install conversion ratios across trades.
Used for: Cross-trade booking-rate benchmarks
Service-management platform aggregate operational data
Residential service-management platforms (anonymized aggregate)
Trade-specific medians for booking rates, estimate close rates, callback times.
Used for: Trade-median calibration across all leak categories
Service-business industry reports
IBISWorld, Verisk, Hardin-Simmons trade data
Trade-specific revenue distributions, EBITDA margins, valuation multiples.
Used for: Valuation math (sale multiples by trade)
Stack6 diagnostic cohort
Stack6 internal
Diagnostic dataset under construction; leak-size ranges are anchored in the cited industry sources above. We update the cohort source once we have enough completed diagnostics to publish.
Used for: Future leak-range calibration (currently industry-anchored only)