How to Vet a Commercial Electrical Contractor: Questions to Ask Before You Sign

Two bids for the same commercial job can differ by 40% and both can be honest. The gap is almost never the copper — it is licence class, crew supervision, safety record, bonding capacity and how much of the scope one contractor put in writing that the other left out. Vetting is how you find out which one you are buying before you sign, not after the first change order.

This is the checklist we would use ourselves. Work through it with every bidder, including us, and ask for the paperwork rather than the reassurance. If you would rather hand the whole scope to one team, our commercial electrical contractor in Louisville page sets out what we take on and how we price it.

1. Verify the Licence — and the Right Class of Licence

Kentucky licenses electrical contractors at state level. Ask for the number, then verify it with the Kentucky Department of Housing, Buildings and Construction rather than trusting a number printed on a truck. Confirm two things: that the licence is current, and that it is the right class for your work. An electrical contractor licence covers the business; a master electrician licence covers the person supervising the crew. Commercial and industrial work needs both behind it.

For reference, Hadley Energy Solutions holds Electrical Contractor licence CE64623, Master Electrician licence ME64500 and HVAC Master licence HM06538. Any contractor should hand those over without hesitating.

• Ask who the licence holder is and whether that person is on your job or only on the paperwork.
• Ask which licensed supervisor will actually be on site day to day.
• Ask whether the crew are employees or subcontracted labour, and who supervises the subs.

2. Ask for the EMR and the Real Safety Record

Experience Modification Rate is the single most revealing number a contractor can give you. It is the insurance industry's measure of how a company's claims history compares to the average for its trade. An EMR of 1.0 is average; below 0.9 is good; below 0.8 is genuinely strong. Anything above 1.0 means their crews get hurt more often than the trade norm, and on your site that is your problem too.

Ask for the EMR letter from their carrier, their OSHA 300A logs for the past three years, and their written safety programme. Ask whether foremen hold OSHA 30 and whether the crew holds OSHA 10. On facilities with energised equipment, ask specifically about NFPA 70E arc-flash training and whether they will work energised at all.

3. Check Insurance Limits and Bonding Capacity

Request the certificate of insurance directly from the broker, not a PDF from the contractor, and have your name listed as certificate holder. You are looking for general liability, workers' compensation and, on larger jobs, an umbrella policy. Confirm the limits actually cover the exposure — a $1M limit on a $2M facility fit-out is not coverage, it is a deductible.

If the project is bid competitively or funded publicly, ask about bonding: bid, performance and payment bonds, plus the contractor's single-project and aggregate bonding capacity. A surety that will write a bond for your project size has already done a financial review you do not have to repeat.

4. Look for Association Membership and Continuing Training

Membership in Associated Builders and Contractors (ABC) of Kentuckiana, IEC or a comparable body is not decoration. Members submit to safety benchmarking, run apprenticeship and continuing-education programmes, and have a reputation to protect within the local construction community. Ask what training the crew completed in the past year and who paid for it.

5. Get References on Comparable Facility Types

A contractor who is excellent in warehouses may have never commissioned a hospital isolated-power panel or coordinated a data-centre tie-in. Ask for three references on buildings like yours, ideally in the past 24 months, and actually call them. Useful questions: did the schedule hold, how were change orders handled, did they keep the building operating during the work, and would you hire them again for the same scope.

• Manufacturing and industrial: ask about three-phase distribution, motor controls and shutdown coordination.
• Healthcare: ask about NFPA 99 compliance, isolated power and infection-control protocols.
• Retail and hospitality: ask how they phase work around trading hours.
• Data and telecom: ask about redundancy, UPS tie-ins and load-bank testing.

6. Read the Estimate Line by Line

A written estimate should break out labour, materials, permits, engineering, inspection and any allowances. Allowances are where surprises hide: if the fixture package is an allowance, ask what fixture and what price it assumes. Confirm who pulls the permit, who schedules inspection, and who eats the cost if the inspector rejects the work.

Check the exclusions list as carefully as the inclusions. Patching, painting, ceiling tile replacement, temporary power, after-hours premium and as-built drawings are the usual omissions that turn a low bid into an average one.

7. Agree Warranty, Response Time and Documentation Up Front

One year on labour and manufacturer warranty on materials is the commercial baseline. Ask what the guaranteed response time is for a warranty call, and whether that applies after hours. Ask what you receive at closeout: as-built drawings, panel schedules, equipment cut sheets, O&M manuals and inspection sign-offs. A contractor who hands over clean documentation is a contractor whose work you can maintain.

Finally, ask whether they offer a maintenance programme. A relationship with scheduled electrical preventative maintenance costs less than emergency callouts and means whoever answers the phone at 2am already knows your building.

Red Flags That Should End the Conversation

• No licence number offered, or a number that does not verify with the state.
• Refusal to provide the EMR or a certificate of insurance from the broker.
• A verbal quote, or a written one with no scope breakdown.
• Large deposit demanded before materials are ordered.
• Pressure to skip permits, or a suggestion that your job "does not need one".
• No references on buildings comparable to yours.

Conclusion

Vetting takes an afternoon. A bad commercial electrical contractor costs you months. Ask for the licence, the EMR, the certificate, the bond, the references and the line-item scope — in writing — and the right choice usually becomes obvious before you sign anything.