You're a union electrical contractor. You know what the job costs — your foremen are sharp, your crew is experienced, and you've been building quality work for years. But every time you sit down to bid, the estimating software eats another $500 from your checking account. Accubid. Simpro. McCormick. The same tools that cost $500–$2,000/month have barely changed in a decade.
Meanwhile, you're using a fraction of what you're paying for. Most shops just need accurate labor rates, material pricing, and a clean PDF to send to the GC. You don't need a 1,000-seat enterprise platform. And you shouldn't need a credit card to get started.
This guide cuts through the noise and gives you a straight answer: what's the best free electrical estimating software for union contractors in 2026?
1. Why Legacy Software Is Bleeding Union Contractors Dry
The electrical estimating software market hasn't changed much in 20 years. Here's what you're actually paying for when you sign up for a traditional platform:
- On-premise architecture. Accubid and Simpro were built before cloud existed. They're installed locally, updated manually, and require IT support to maintain.
- Enterprise overhead. Simpro Enterprise runs $1,200–$2,500/month and bills itself at companies with dozens of estimators. If you're a 5-person shop, you're subsidizing a product you'll never fully use.
- Mandatory training. Simpro alone requires 2–5 days of onboarding before an estimator can produce a clean bid. That's time you're not billing.
- Rate maintenance burden. When a CBA changes — and they do, usually June 1 — you manually update every rate sheet. Miss one line and you're out of compliance on prevailing wage work.
None of these tools were built with the IBEW contractor in mind. They're general construction tools that happen to have an electrical module. The difference matters.
2. What a Compliant Union Bid Actually Requires
Before you can evaluate software, you need to know what a union-compliant bid actually demands. It's not complicated — but it has to be done right, every time.
Labor rates from the CBA
Every IBEW-NECA collective bargaining agreement specifies rates by classification (journeyman, foreman, general foreman) and by local. These aren't suggestions — on prevailing wage or Davis-Bacon jobs, the GC or awarding authority will audit your rates. You need:
- Base hourly wage for each classification
- Health & Welfare (H&W) contribution per hour
- Pension contribution per hour
- Any supplemental fund contributions (annuity, training, etc.)
Material pricing from a real supplier
Your material costs need to reflect actual supply house pricing — not a generic list from 2023. You're bidding against contractors who use their supply house relationships to get better numbers. Your software should reflect that reality.
Markup structure for overhead and profit
A complete bid isn't just labor plus material. You need to factor in:
- Company overhead (typically 15–22% of direct cost for electrical)
- Profit margin (8–12% for competitive commercial work)
- Insurance and bonding adjustment
Documentation trail
On any prevailing wage project, you need to produce certified payroll and show how you built every number in your estimate. If you can't show your work — the rate source, the material price, the markup rationale — it doesn't hold up in an audit.
The right software handles all four of these automatically. The wrong software makes you build it from scratch every time.
3. Why Free Spreadsheets Fail for Union Work
Excel and Google Sheets are free. They work fine for a lot of things. But if you're running IBEW union work, a spreadsheet will eventually cost you money — not save it.
Stale rates are the #1 killer
IBEW CBAs change annually — usually on June 1. If your spreadsheet has last year's rates, you're underbidding every prevailing wage job you touch. There is no warning system. There is no alert. You're just silently wrong.
No audit trail
When a GC asks you to justify a line item, you open a spreadsheet. When an auditor asks the same question three months later, you hope you remember which version you used. Spreadsheets have no built-in documentation — the audit trail lives entirely in your file naming discipline.
Copy-paste errors compound
A single dropped cell or a missed row in a 200-line spreadsheet estimate can mean the difference between a winning bid and a job that eats your margin. Spreadsheets don't catch math errors. They don't flag missing classifications. They just calculate what you tell them to calculate.
No mobile access on the job site
Most union contractors estimate in the field — at the job walk, on the estimate visit, in the supply house. A spreadsheet on a laptop isn't built for that workflow. You need something that works on a phone, a tablet, and a laptop without reformatting.
Crew mix is manual
A spreadsheet treats every hour the same. But a proper union estimate requires per-classification pricing: foreman vs. journeyman vs. apprentice have different rates and different burdens. Doing that in a spreadsheet means maintaining four or five separate rate tables and keeping them in sync manually.
4. BidWire — Free Electrical Estimating Built for IBEW Contractors
BidWire is free, purpose-built estimating software for union electrical contractors. It was built from the ground up around IBEW CBAs — not adapted from general construction software.
What's included — free, no credit card
IBEW Local 3/11/134/46 — rates pre-loaded and current
BidWire currently covers these IBEW locals with full 2026 CBA rates:
- Local 3 — New York City (all boroughs + Long Island)
- Local 6 — San Francisco Bay Area
- Local 11 — Los Angeles
- Local 20 — Dallas/Fort Worth
- Local 46 — Seattle
- Local 68 — Denver
- Local 98 — Philadelphia
- Local 103 — Boston
- Local 134 — Chicago
- Local 595W — East Bay
- Local 613 — Atlanta
- Local 716 — Houston
Full rate breakdowns — base wage, H&W, pension, and total package — for every local and every classification are on the BidWire rates page.
5. Full Comparison: BidWire vs. Spreadsheets vs. Accubid vs. Simpro
| Feature | BidWire | Free Spreadsheet | Accubid | Simpro |
|---|---|---|---|---|
| Cost | Free | Free | $500–$1,500/mo | $600–$2,500/mo |
| IBEW CBA rates | 12 locals, auto-updated | Manual — stale by next June | Extra cost add-on | Extra cost add-on |
| Labor units library | 55 NECA tasks built in | Manual entry every time | Available, extra cost | Available, extra cost |
| Material catalog | 45 items, retail pricing | Separate — manual sync | Add-on required | Add-on required |
| PDF bid sheet export | One-click, included | Build manually each time | Included | Included |
| CBA rate change alerts | Flagged in-app automatically | You have to find out yourself | Manual update required | Manual update required |
| Setup time | 5 minutes | Immediate, but builds from scratch | Days to weeks | 2–5 days training required |
| Audit trail | Per-estimate version history | Relies on file naming discipline | Built in | Built in |
| No credit card to start | Yes | Yes | No — sales process required | No — sales process required |
| Cloud / mobile access | Any device, any browser | Laptop only (unless Google Sheets) | Desktop / on-premise only | Desktop / on-premise only |
The spreadsheet row is honest — it's free, and sometimes free is enough for a small non-union shop with one estimator and no prevailing wage work. But for union contractors who need CBA compliance, accurate rates, and a professional output, the spreadsheet column has too many failure modes. And the paid tools charge hundreds per month for features most small shops never use.
BidWire is the tool built for the gap between those two options.
6. Getting Started in Under 5 Minutes
BidWire doesn't require a sales call, a credit card, or a training session. Here's how to go from zero to a complete IBEW estimate in five minutes:
Step 1 — Create your free account
Go to bidwire.polsia.app/signup. Enter your company name, email, and a password. That's it. You'll land in the estimate builder immediately.
Step 2 — Select your IBEW local
Pick the local covering your job site from the dropdown — Local 3, 11, 134, or any of the other 9 covered. BidWire pulls the correct 2026 CBA rates automatically.
Step 3 — Enter your scope
Add labor tasks from the NECA library (conduit, fixtures, panels, branch circuits, etc.) and materials from the supply catalog. Assign quantities and conditions — normal, difficult, or very difficult.
Step 4 — Export your PDF
Click Export. Your professional bid sheet is ready — labor breakdown, material costs, overhead, and profit all calculated. Send it to the GC.
Stop Paying $500/Month for Features You Don't Use
BidWire is free. Built for IBEW contractors. Pre-loaded with 2026 rates for 12 US locals. Start building your first estimate now — no credit card required.
Start Free — No Credit CardIBEW locals covered: Local 3 NYC · Local 6 SF · Local 11 LA · Local 46 Seattle · Local 68 Denver · Local 98 Philly · Local 103 Boston · Local 134 Chicago · and more