Skip to main content
The Fennec Lab

Service-electrical operator economics

Electrical Contractor Operations Calculators

Operator economics for residential and light-commercial electrical contractors — flat-rate service-call pricing using NECA Manual of Labor Units and BLS SOC 47-2111 wage benchmarks, 100A→200A and 200A→400A panel upgrade bid pricing under NEC Articles 230 / 408 (including § 408.36 ground-fault protection), and Level 2 / DC fast-charger EV installation pricing aligned to NEC Article 625.

Anchored to: NEC (NFPA 70) Articles 110, 210, 230, 240, 250, 408, 625; NECA Manual of Labor Units; BLS SOC 47-2111 (electrician wage, May 2024); NCCI class 5190 (Electrical Wiring — Within Buildings); 26 USC § 168 / § 179 (vehicle depreciation); state journeyman/master licensure (Fla. Stat. Ch. 489.501-.5335; Cal. B&P § 7026.1; Tex. Occ. Ch. 1305)

8 calculators live. Reviewed against current statute and regulation. Last updated 2026-05-17.

Most-used calculators

NECA (National Electrical Contractors Association) Manual of Labor Units — industry-standard spine for electrical labor-time estimation

Electrical Service Call Pricing Calculator

Build a defensible flat-rate price for a residential or light-commercial electrical service call from first-principles cost inputs: dispatch fee, journeyman + helper labor minutes anchored to the NECA Manual of Labor Units, loaded labor cost (with payroll tax under 26 USC § 3121, benefits, NCCI class code 5190 workers'-comp), materials at contractor cost with markup, per-call vehicle and overhead allocation, and target net margin applied as a divisor. Computes the recommended flat-rate price, T&M-equivalent hourly rate, dispatch-fee cost-recovery floor, and breakeven calls per electrician per day. Tool, not advice — for binding price-book adoption, commission a NECA or IEC cost-of-doing-business analysis; for tax treatment of vehicle depreciation and payroll-tax components, consult a licensed CPA familiar with construction-services tax practice.

NFPA 70 (National Electrical Code) Article 230 (Services — number of services

Electrical Panel Upgrade Bid Calculator

Build a defensible bid for a residential service panel upgrade (100A to 200A, 200A to 400A, like-for-like panel swap) from first-principles material, labor, and code-compliance inputs. Computes panel material cost (Square D Homeline / QO, Eaton CH / BR, Siemens / Murray), service-entrance conductor cost (SER / SEU sized per NEC 230.42 and 310 ampacity tables), labor hours (NECA Manual of Labor Units anchored), utility and inspection coordination, permit fee, and grounding-electrode-system upgrade per NEC 250.50-66 and 250.94 intersystem bonding. Outputs the recommended bid at target margin (margin as divisor), bid per amp, and NEC 408.36 ground-fault-protection advisory. Tool, not advice — actual bid must be tailored to site conditions; for tax treatment of fully-loaded cost components, consult a licensed CPA.

NFPA 70 (National Electrical Code) Article 625 (Electric Vehicle Power Transfer System) — §625.41 continuous-load sizing (125% of EVSE rated input)

EV Charger Installation Pricing Calculator

Build a defensible bid for a Level 2 EV charger (EVSE) installation at single-family or HOA-common-area locations from first-principles material, labor, and code-compliance inputs. Computes branch-circuit sizing under NEC 625.41 (125% continuous-load multiplier), conductor sizing per NEC 310.16, charger material cost by model (Tesla Wall Connector, ChargePoint Home Flex, Wallbox Pulsar Plus, Emporia, Grizzl-E), branch-circuit material (wire, conduit, breaker, NEMA 14-50 receptacle or hardwired termination), and labor hours from the NECA Manual of Labor Units. Surfaces the NEC 625.42 disconnect advisory, NEC 625.54 GFCI requirement, NEC 220 load-calculation advisory, and a NEMA receptacle vs hardwired comparison. Tool, not advice — actual bid must be tailored to site conditions and a verified NEC 220 load calculation.

Find your calculator

Grouped by who tends to use each tool. Many calculators serve more than one audience.

For LCAMs & community managers

Operational tools for the day-to-day: estoppel preparation, statutory cap verification, hearing procedure.

For unit owners

Verify a notice, check a fine, or understand the lien exposure on a delinquent account before acting.

Or filter by calculator type

All 8 calculators in this cluster, organized by what they compute. Use the chips to narrow to a specific area.

100+

Calculators live

Across statute, regulation, and policy

100%

Statute-cited

Every formula links its source

4,000+

Unit tests

Every formula has a regression suite

Open

Formula transparency

Deterministic math, no hidden weights

Free

Ad-supported

No paid tier, no paywall

How these calculators are maintained

Every YMYL calculator is reviewed quarterly and after every legislative session in the jurisdiction it covers. Citations are link-validated monthly against the relevant statute and regulation websites. The methodology page documents the discipline.

Read the editorial methodology →

Search calculators

Find a calculator by name, cluster, or statute