ConEst, Accubid, and McCormick Alternatives for Small Electrical Contractors

What Accubid, ConEst, and McCormick Actually Do

All three are deep, electrical-specific estimating platforms with overlapping core capabilities. The differences between them are real but mostly matter to large electrical contractors making a 10-year platform decision. For the mid-market buyer, the bigger decision is whether any of them fit at all.

Trimble Accubid

The market leader by installed base. Best-in-class electrical assembly database with material and labor tied to specific manufacturers and SKU numbers. Live pricing feeds from major distributors (Graybar, Rexel, Border States) when configured. Per-seat licensing $4K–$8K/yr. Onboarding 4–6 months for a new firm. Strongest fit for $20M+ electrical contractors with dedicated estimating departments.

ConEst IntelliBid

Closer in scope to Accubid; smaller installed base. Strong on takeoff integration. Per-seat licensing in the same range. Often pitched at firms outgrowing entry-level tools but not ready for Accubid pricing. Onboarding 3–5 months.

McCormick Estimating

Smaller than Accubid and ConEst. Strong electrical assembly database. Per-seat licensing typically below Accubid; $3K–$5K range common. Onboarding 2–4 months. Often the right pick for established mid-market electrical contractors not on a Trimble stack.

Where the Big Three Don't Fit a 1–3 Estimator Shop

1. Per-seat math kills small teams

A $1M–$5M electrical contractor with one estimator can't justify $5K/year for the seat plus $5K–$15K of database licensing plus 4 months of ramp time. The annual cost lands 0.5%–1.5% of revenue before the tool produces a single competitive bid. Most $1M–$5M shops can't absorb that.

2. Assembly libraries are powerful and slow

Accubid's electrical assembly database is the deepest in the industry. It also requires the estimator to learn the assembly model, customize it to the firm's typical scope, and maintain it as products change. For an estimator with 15+ years of mental shortcuts already burned in, the assembly model is a workflow rebuild that pays off in year 3 — if the rollout doesn't stall first.

3. Live distributor feeds need a relationship-tier discount

The "live pricing from Graybar / Rexel" pitch only works if you have a tiered customer discount with that distributor that the feed can apply. Smaller electrical contractors often don't have customer-tier pricing set up, so the live feed shows list prices that don't match what they actually pay.

4. Implementation needs a senior estimator with time

The big three all assume the firm has a senior estimator who can spend 4–6 months building out assemblies, training junior staff, and standardizing templates. At a 1–3 estimator shop, that person is also bidding 60% of the active work — they don't have 4 months.

What Mid-Market Electrical Contractors Actually Need

The pattern across $1M–$15M electrical contractors looks consistent:

• Estimating happens in Excel with a custom firm-specific template, refined over 10–20 years.
• The cost library lives in the senior estimator's head. They know what 250 MCM aluminum costs at the local supply house this week and what their journeyman rate landed at on the last similar job.
• Bid volume is 8–25 bids per estimator per month, depending on whether the firm is service-and-commercial or bid-spec.
• Pricing pressure is on speed and consistency, not on assembly depth. Most bids are similar to bids the firm has already sent.
• The firm hits a wall around $10M–$15M revenue when the senior estimator is overloaded but the firm can't absorb a 4-month software rollout.

The right tool at this stage reads the existing Excel template (whatever format), extracts the unit costs and markups already in use, and generates the next bid in the same format — without forcing the estimator to learn an assembly model.

Honest Comparison

The Trade-Off Worth Naming

Accubid, ConEst, and McCormick will produce a more granular electrical estimate than BidFlow on the first bid — they have decades of electrical-specific assembly libraries that BidFlow doesn't have out of the box. That's a real advantage for greenfield work where the contractor hasn't bid anything similar before.

BidFlow's bet is different. Most $1M–$15M electrical contractors aren't bidding greenfield scope. They're bidding repeat work — the same kinds of TI, multifamily, light industrial, and service jobs they've bid 50 times before. The cost intelligence those firms need most is already in their last 50 bids. Reading those bids and turning them into a private cost library produces a tighter, more firm-specific estimate than any vendor library because it reflects the actual subs the firm calls, the actual labor rates the firm bills, and the actual markup structure the firm runs.

For greenfield assembly bidding at scale, the big three win. For repeat work at mid-market scale, BidFlow's "read your past bids" model wins. Pick based on which describes your shop.

When to Pick BidFlow Specifically

You're a good fit for BidFlow if most of these are true:

• You're a $1M–$15M electrical contractor with 1–3 estimators.
• Your team bids in Excel using a firm-specific template.
• You've quoted Accubid, ConEst, or McCormick and the per-seat math doesn't work.
• Most of your bids are repeat work in similar project types.
• You'd rather pay $199/month flat than $5K/seat/year.

You should probably pick Accubid (or one of the others) instead if most of these are true:

• You're a $20M+ electrical contractor with 5+ estimators.
• You bid greenfield commercial or industrial work where assemblies pay off.
• You already have customer-tier pricing set up with major distributors.
• You can dedicate a senior estimator to a 4–6 month rollout.
• Your firm runs the broader Trimble or Sage stack you'd integrate with.

Try BidFlow on one of your past electrical bids

The best evaluation is a real bid you've already sent. Upload one of your past electrical estimates and see what BidFlow extracts in 5 minutes. If the cost structure matches your bid within 5%, you've got your answer. If it doesn't, walk away with your data intact.

Upload one of your past estimates — 3 free estimates, then $199/month flat per company after. No per-seat charges. Cancel any time.

For a full comparison of estimating tools across trade categories, see the construction estimating software buyer's guide. For pricing detail across all tools, see how much construction estimating software costs in 2026. For small-shop specific guidance, see best estimating software for small contractors.