Quantity takeoff
Measured quantities organized by the agreed trade and system. Your team supplies or confirms pricing, production rates and final markups. Specify any drawing markups and workbook format you need.
Review quantity takeoff scope →Commercial Electrical Estimating Services
Itemized quantity takeoffs, conduit run measurements, switchgear quantification, and bid assembly support for commercial electrical contractors bidding institutional, healthcare, retail, and industrial facilities nationwide.
Project-based estimating fees. Confirm scope, fee and delivery after document review.
Send your bid documents
Request an electrical estimate
Tell us the project location, trade scope and whether you need quantities only or a priced estimate. Add your bid deadline if you have one.
Useful documents for a scope review
- Electrical plans, one-lines and panel/lighting schedules
- Power, lighting, grounding and controls specifications
- Equipment connections, low-voltage boundaries and addenda
Upload the available set, or include a shared drawings link in your message. Note missing documents and any items you want excluded.
What happens next?
We review the available documents and clarify the requested package. The proposal establishes deliverables, fee, revision scope and delivery milestones before estimating work starts.
Review estimating fees and scope questions or call (317) 751-5969.
Prepare a bid you can review
Electrical Takeoff Package: What to Request
For electrical subcontractors outsourcing a commercial takeoff, the useful output is a traceable schedule your team can price and check. Reconcile one-lines, panel schedules and floor plans so feeder scope, branch routing and equipment connections remain distinct.
| Package | Quantity breakdown | Check before pricing |
|---|---|---|
| Distribution and feeders | Gear and panel tags, feeder/raceway lengths and conductor groups | Termination scope, routing assumptions and vendor quotations |
| Lighting and branch devices | Fixture/device counts by type, circuits, conduit and wiring | Controls, emergency functions and scheduled accessories |
| Equipment and low voltage | Disconnects, hookups and documented pathways or devices | Division 23/26 interfaces, owner-furnished items and low-voltage exclusions |
A scope gap to check
Lighting fixture counts cannot establish conductor lengths or branch conduit. Keep counts, routed measurements and any missing-route assumptions visible in separate rows.
Need material quantities for your own pricing? Choose a quantity-only takeoff. Need labor and cost inputs assembled with quantities? Review priced bid estimating. Identify the intended package in your enquiry so the proposal covers the work you need.
MEP drawing revision and addendum checklist → · Fees and revision scope · Send your project documents
Comprehensive Division 26 Coverage
Itemized Commercial Electrical Takeoffs
Commercial electrical bids demand meticulous counting of distribution gear, precise linear measuring of conduit runs, and identification of the specified conductor sizes. JLG Estimating delivers granular, itemized electrical takeoffs that support review of scope coverage before bid day.
Our senior estimators thoroughly analyze electrical floor plans, single-line diagrams, riser schematics, and mechanical equipment schedules. We provide color-coded blueprint markups and customizable Excel spreadsheets calibrated to your shop's labor productivity and regional supply rates.
Power Distribution & Gear
Complete quantification of main service entrance equipment, secondary distribution, and transformer banks:
- Main switchboards & unit substations
- Distribution panelboards & circuit breakers
- Dry-type step-down transformers & K-rated gear
- Automatic transfer switches (ATS) & generator feeds
Conduit & Feeder Raceways
Accurate linear measurements of all underground and overhead raceways, wire sizes, and cable trays:
- EMT, GRC, IMC, and PVC conduit linear footage
- Copper & aluminum THHN/XHHW feeder conductors
- MC cable footages & junction box counts
- Cable tray, trapeze hangers & seismic bracing
Lighting & Advanced Controls
Itemized counts and classification of commercial architectural, emergency, and site lighting:
- Commercial 2x4, 2x2 LED troffers & downlights
- High-bay industrial LED fixtures & strip lights
- 0-10V low voltage dimming & occupancy sensors
- Emergency battery packs & exit signs
Distribution Engineering
One-Line Diagram Reconciliation & Feeder Scheduling
Commercial electrical bids depend fundamentally on single-line diagram accuracy. While 2D plan sheets show device placement, the single-line diagram dictates the actual electrical infrastructure, main bus ratings, breaker capacities, and feeder conductor sizing:
1. Service Entrance & Fault Current Coordination
We verify main service ampacity (400A to 4000A+), utility transformer pad details, current transformer (CT) metering cabinets, and grounding electrode conductor networks (ground rods, ground rings, and building steel bonding). We check specified AIC ratings (e.g. 65kAIC vs 22kAIC) to prevent catastrophic equipment pricing shortfalls.
2. Feeder Conduit & Conductor Takeoff
Feeder takeoffs include documented horizontal routes, vertical risers and separately stated routing allowances. Pull boxes, bends, conductor sizes and copper/aluminum specifications are taken from the project documents. Missing routing or sizing information is listed for clarification; no universal 100-foot pull-box rule or independent conductor redesign is assumed.
3. Panelboard Schedules & Branch Circuit Verification
We cross-reference every circuit breaker listed in the panel schedules against branch circuit homeruns on the plan drawings, identifying unassigned circuits, spare breaker allowances, and space-only provisions.
MEP Coordination
HVAC Motor Hookups & Low-Voltage Demarcation
Scope overlap between commercial electrical subcontractors and mechanical trades is the number-one source of bid-day scope gaps. Our takeoffs establish clear boundaries:
Mechanical Equipment Power Connections
We review the Division 23 mechanical equipment schedule to quantify disconnect switches (fused vs non-fused, NEMA 3R outdoor vs NEMA 1 indoor), variable frequency drives (VFDs), motor starters, and final flexible conduit whip hookups for RTUs, exhaust fans, and chillers.
Architectural Lighting Control Systems
Energy code mandates (ASHRAE 90.1 / Title 24 / IECC) require complex digital lighting control systems. We quantify relay panels, 0-10V low-voltage dimming cabling, ceiling occupancy/vacancy dual-technology sensors, photocells, and emergency shunt relays.
Fire Alarm & Telecommunications Pathways
We capture empty conduit pathways, backboxes with pull strings, floor poke-through assemblies, and J-hook cable support infrastructure required for low-voltage, security, and fire alarm packages.
Professional Preconstruction Deliverables
Possible Takeoff Deliverables
Our deliverables are tailored for immediate bid assembly. We provide transparent, fully editable files that your estimators and project managers can adapt with complete flexibility.
Editable Excel Workbook
Itemized quantities broken down by floor, drawing sheet, and CSI cost code. Includes material unit prices and customizable labor unit hours tailored to open-shop or prevailing wage standards.
Color-Coded Marked-Up PDFs
High-resolution digital blueprint overlays highlighting every feeder route, branch conduit run, lighting symbol, and panelboard location. Allows for instant visual auditing by your team.
Scope & Clarifications Letter
A formal preconstruction letter documenting drawing dates, addenda reviewed, engineering assumptions made, and explicit scope boundaries ready to paste into your GC bid proposal.
Sector Expertise
Commercial Facility Sectors We Estimate
Our estimators support commercial electrical subcontractors across diverse facility types nationwide.
Corporate & Office (TI)
High-density power distribution, architectural lighting controls, floor box layouts, and tenant fitouts.
Office TI Scope →Healthcare & Medical
Isolated power systems, emergency branch circuits, nurse call raceways, and hospital-grade branch devices.
Healthcare Scope →Industrial & Logistics
Heavy motor control centers, high-bay warehouse LED lighting, 480V distribution, and busway systems.
Industrial Scope →Data Centers
Medium-voltage switchgear, standby generators, UPS modules, and overhead busway distribution.
Data Center Scope →Division 26 Preconstruction
Electrical Drawing Intake & Deliverables Architecture
Commercial electrical estimating demands meticulous coordination between one-line feeder diagrams, branch conduit routing, panelboard schedules, and lighting fixture schedules.
Electrical Drawing Intake Checklist
- ✓E-Series Plan Sheets (PDF): Electrical power plans, lighting layouts, site electrical utilities, and system details.
- ✓One-Line Diagrams & Panel Schedules: Main service entrance, main distribution panels (MDP), transformers, panelboards, and motor control centers (MCC).
- ✓Lighting Fixture Schedules & Cut Sheets: Luminaire tags, daylight sensors, emergency lighting battery packs, and occupancy control matrices.
- ✓CSI Division 26 Specifications: Conduit specifications (EMT, RMC, PVC, MC cable), conductor specs (copper vs. aluminum), and switchgear manufacturer requirements.
Deliverable Package Architecture
Delivered in unlocked Microsoft Excel workbooks and color-coded Bluebeam Revu markups. Review our Estimating Methodology and Sample Deliverables Guide:
- Tab 1 — Executive Summary: Bid summary recap, switchgear totals, branch conduit, lighting, and labor.
- Tab 2 — Feeders & Heavy Distribution: Conduit linear runs, conductor footage by AWG/kcmil, trenching, and terminations.
- Tab 3 — Branch Circuitry & Devices: Receptacles, switches, motor feeds, junction boxes, and MC cable runs.
- Tab 4 — Lighting Package & Controls: Fixture schedule counts, emergency lighting, sensors, and 0-10V dimming.
- Tab 5 — Switchgear Leveling: Vendor comparison sheet for panelboards, switchboards, and dry-type transformers.
- Tab 6 — NECA Labor Factoring: NECA Manual of Labor Units adjusted for installation height and site conditions.
Trade Interconnects
Coordinated MEP Preconstruction Solutions
Coordinate electrical packages with mechanical and preconstruction estimating scopes:
Commercial HVAC
Coordination of line-voltage disconnects, motor starter panels, and VFD wiring schedules.
Plumbing Takeoffs
Power circuit coordination for electric water heaters, circulating pumps, and sewage ejectors.
Quantity Takeoffs
Itemized conduit linear runs, wire footages, and panelboard device takeoffs for buyout.
Bid Estimating
Complete tender closing support, NECA labor factoring, and scope clarification letters.
Common Questions
Commercial Electrical Estimating FAQ
Answers to common preconstruction and takeoff questions from electrical contractors.
Frequently Asked Questions
Choose your estimating scope
Quantity Takeoff or Priced Estimate?
The right package depends on who will price the quantities and prepare the final bid. Confirm the included work in your project proposal.
Electrical scope to confirm before pricing
- Provide current one-line diagrams, panel schedules, fixture schedules and electrical specifications.
- Define feeder, branch-circuit, lighting, site-power and mechanical-equipment connection boundaries.
- Separate full low-voltage/fire-alarm systems from pathway-only takeoffs; identify owner-furnished equipment and vendor quotations.
Need to review the output first? See the takeoff workbook fields and deliverables and estimating methodology, then send your project details.