5 Costly Mistakes Electricians Make When Bidding Jobs

Most electrical contractors don’t lose money on the job site. They lose it before the job ever starts, in the bid. If your numbers are off by even a small percentage on labor or material, that mistake gets locked in the moment you sign the contract, and there’s no fixing it once you’re in the field. This is the honest, practical guide to the five bidding mistakes I see most often, and how Best Bid Electrical Estimating Software was built specifically to close those gaps.

Why do electrical contractors lose money on bids they should have won?

I’m Steve Griffin, and I’ve spent decades building estimating tools for electrical contractors, first as part of 1st Choice Electrical Estimating Software (1CEES), which we started back around 1989, and now through the Best Bid product line. 1CEES began with the Budget Estimator, a tool built for people who weren’t deeply versed in electrical cost estimation but needed to get a fast, workable number. From there we built the 1CEES System for commercial work and the 1CEES Residential Estimator, the first electrical bidding software designed specifically around residential projects.

As our contractors grew, so did their needs, and that’s what led to the Best Bid Electrical Estimating product line. The mission never changed: build estimating software the way an electrician actually thinks, not the way a computer programmer thinks. That distinction matters more than most contractors realize, and it’s the thread running through every mistake below.

Mistake #1: Doing takeoffs by hand and re-entering totals manually

Here’s the pattern I’ve watched trip up contractor after contractor: you print a full-size plan, highlight every symbol by hand, add up your totals on paper or in a spreadsheet, and then manually type those totals back into your estimating software. Every one of those handoffs, plan to highlighter, highlighter to tally, tally to keyboard, is a chance for a number to get dropped, doubled, or mistyped.

This is exactly why Best Bid Hybrid Pro and Best Bid Next Generation both come with a built-in On-Screen Takeoff. You import your PDF drawings directly and count or measure right on the screen, and those quantities flow straight into your estimate. There’s no third-party takeoff tool to reconcile and no re-typing step where an error can sneak in. Numbers only have to be entered once.

The fix in one sentence: if your takeoff and your estimate live in two different tools, you’ve built an extra opportunity for mistakes into every single bid.

Mistake #2: Using free or outdated electrical estimating software

I understand the appeal of free electrical estimating software when you’re starting out or trying to keep overhead down. But there’s a real difference between a tool that helps you estimate and a tool that was actually built by people who’ve bid electrical work for a living.

Our team built the Best Bid product line the way electricians think, using electrical terminology, simple screens, and workflows that match how a real bid gets put together. A lot of the electrical bidding software on the market was written by programmers with no hands-on electrical estimating experience, and it shows in how clunky and slow those systems are to actually use on a real job.

Free tools also tend to lack the features that protect your margin on bigger or more complex jobs, things like Custom Assemblies for specialty scopes (grounding loops, transformer stands, control cabinets, elevators, swimming pools, seismic material), or an unlimited database that lets you keep adding specialty items as your work gets more specialized. When you’re relying on free software with a capped or generic database, you either force your project into a template that doesn’t fit, or you’re back to manual workarounds, which brings you right back to Mistake #1.

The fix in one sentence: the estimating software you choose is the single most important tool you own, and it’s worth choosing based on whether it was built by electrical contractors or built around a generic spreadsheet template.

Mistake #3: Applying the same labor difficulty to every job

Not every job has the same labor conditions. A rough-in in an open warehouse is not the same as a rough-in in a finished high-rise with limited access and tight scheduling. Contractors who apply one flat labor unit across every project are either overbidding easy jobs and losing them to competitors, or underbidding hard jobs and eating the difference in the field.

Best Bid addresses this directly with a Labor Adjustment tab on every Assembly Summary sheet. Instead of being boxed into the old columns 1-2-3 labor system, you can adjust labor difficulty by percentage, a little or a lot, on an assembly-by-assembly basis rather than only changing labor globally across the whole estimate. That means you can micro-manage a difficult ceiling install or a tight mechanical room without distorting the labor on the rest of the job.

The fix in one sentence: labor difficulty should be adjustable at the assembly level, not just applied as one blanket number across the entire bid.

Mistake #4: Never getting formal training in how to structure an estimate

A lot of electricians are excellent at the trade and were simply never taught how to structure a bid. That’s a completely different skill, and it’s the one that determines whether your business is profitable or just busy.

This is why we built the Best Bid Online School for Electrical Estimating alongside the software itself. It’s open enrollment, and the course is designed around the specific needs of the student, whether that’s a project manager who needs to understand estimates at a management level or someone brand new to the trade who’s never built a bid from scratch. We also offer a Company Plan so your project managers and estimators can go through training together, and a Master Estimating Certificate Plan for contractors who want to go deeper.

Software alone doesn’t fix a bad estimating process, it just executes whatever process you feed it. If you don’t understand how to structure an estimate or price a project accurately, better software will just help you make the wrong number faster. Training and tooling have to go together.

The fix in one sentence: an estimating tool only performs as well as the estimator using it, which is why we pair Best Bid software with actual estimating instruction, not just a user manual.

Mistake #5: Forgetting Indirect and Other Costs

This is the mistake that quietly eats profit on jobs that otherwise looked solid on paper. Contractors do a careful job pricing material and labor, then forget to build in the real costs of actually running the project. Whatever you call them, indirect costs, general conditions, other costs, they need a dedicated place in your estimate, or they get forgotten.

Best Bid has a specific place for these line items so they don’t fall through the cracks:

• Plans and permits
• Remote office and supervision
• Hotel and per diem
• Fuel and rentals
• Lifts
• Temp power
• Meetings
• Lost time

If these costs live only in your head instead of in the estimate structure, they get remembered on some jobs and forgotten on others, and the forgotten ones are the ones that quietly underperform.

The fix in one sentence: indirect costs need their own dedicated section in the estimate, not a mental note you hope you remember before you submit the bid.

A quick comparison: the mistake versus the fix

Frequently asked questions about electrical estimating mistakes

1. What’s the single biggest bidding mistake electrical contractors make?
   Re-keying numbers between a separate takeoff process and the estimating software. Every manual transfer point is a place where a number can get dropped or duplicated, which is why On-Screen Takeoff is built directly into Best Bid Next Generation and Best Bid Hybrid Pro. 
2. Does better estimating software fix bad estimating habits?
   Not on its own. Software speeds up and standardizes your process, but if the underlying estimating structure is wrong, it just produces the wrong number faster. That’s why we built the Online School for Electrical Estimating to run alongside the software. 
3. How is labor difficulty handled differently in Best Bid?
   Instead of being limited to a fixed labor column system, Best Bid lets you adjust labor by percentage on every individual Assembly Summary sheet, so difficult scopes can be priced differently from straightforward ones within the same estimate. 
4. Can freelancers or small contractors use Best Bid, or is it only for large firms?
   Best Bid Next Generation and Best Bid Hybrid Pro are both designed to estimate electrical projects of any size, and we also offer Freelance Estimating and Drafting for contractors who need estimates or drawings done for them directly. 
5. What if I need to modify a drawing, not just take off quantities from it?
   That’s what AccuraCADD PDF Draw is for, it lets you create and modify PDF drawings with precision, which pairs with the estimating side for projects that need drafting work as well as pricing.

   
   

Key takeaways

• Manual takeoffs re-typed into a separate estimating tool are one of the most common sources of bid errors.
• Free or generic estimating software often lacks the assembly flexibility and unlimited database that real electrical bids need.
• Labor difficulty should be adjustable per assembly, not applied as one number across an entire job.
• Formal estimating training matters as much as the software itself, that’s why we built the Best Bid Online School for Electrical Estimating.
• Indirect and Other Costs need a dedicated home in your estimate so they don’t get forgotten job after job.

About the author: Steve Griffin is the designer and trainer behind Best Bid Electrical Estimating Software, the current product line of 1st Choice Electrical Estimating Software (1CEES), founded in 1989. Connect with Steve on LinkedIn, or see the software in action on the Best Bid YouTube channel