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Hentkowski Inc.
Heating and cooling in Wilmington, New Castle County
State-licensed
Contact
- Address
- 3420 Old Capitol Trail
Wilmington, DE 19808 - Phone
- (302) 998-2257
Address and phone from their own website, read September 25, 2026.
License
- Type
- Master HVACR license
- Number
- HM-0000604
- Held by
- John Hentkowski
- Expires
- October 31, 2026
- Checked
- September 25, 2026, against the Delaware Division of Professional Regulation list
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