Connecticut contractor license
John Costanzo
Inactive Expires September 30, 2024
State reason: DOES NOT WISH TO RENEW.
- License number
- ELC.0104867-E1
- License type
- Electrical Unlimited Contractor
- Location
- Hamden, CT
- Issued by
- Connecticut Department of Consumer Protection
What this license means
This is a Connecticut electrical unlimited contractor license from the Department of Consumer Protection. It covers that kind of work only. A contractor license lets John Costanzo run the business and pull permits; workers on the job hold their own journeyperson licenses.
Before you hire John Costanzo
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Confirm the record on the official site
Our copy is from the state's file dated November 11, 2026. The official record is live and also lists complaints and discipline, which our data doesn't include.
Search ELC.0104867-E1 on elicense.ct.gov (opens official site)
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Make sure the name on the contract matches
The contract, the permit and the license should all name John Costanzo. A different company name on the paperwork usually means someone else is working under this license.
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Check the license covers your job
This is a electrical unlimited contractor license. If your job is a different trade, the contractor needs that license too, or a licensed sub for that part.
Is this your license, or is something wrong?
This status comes from Connecticut's state credential data from the Department of Consumer Protection (home improvement, new home construction, major and trade contractors), file dated November 11, 2026, and it may have changed since. The official record is the one that counts. If it's wrong, the state has to fix it. If our page is the problem, or you want this record off our site, email us or see our corrections page.
Hiring in Connecticut
See all licensed contractors in Hamden to compare, or check another name.
See the Connecticut contractor licensing guide for which work needs a license, small-job limits, and how to file a complaint, or the step-by-step check. Or look up another contractor.