# John Duffy Fuel Co., Inc.

John Duffy Fuel Co., Inc. is listed as a heat pump installer in Newark, NJ, United States.

John Duffy Fuel Co., Inc. appears on the PSE&G register (PSE&G participating HVAC contractor), with an address in Newark, NJ. Services named in the source: Cooling (Mini-Split; Central A/C; Air Source Heat Pumps; Central Air Source Heat Pumps).

## Details

- Address: 465 Mulberry St., Newark, NJ, 07114, United States
- Phone: [19736232626](<tel:19736232626>)
- Website: [duffyenergy.com/](<https://duffyenergy.com/>)
- Register or agency named in the source: PSE&G
- Source of the listing data: PSE&G HVAC Instant Rebate Program, https://findacontractor.pseg.com/HVAC, fetched 2026-11-10. Map pin from Overture Maps Places (CDLA-Permissive-2.0, release 2026-10-21.0).

## Questions

### Where is John Duffy Fuel Co., Inc.?

John Duffy Fuel Co., Inc. is at 465 Mulberry St., Newark, NJ, 07114, United States.

### How do I contact John Duffy Fuel Co., Inc.?

To contact John Duffy Fuel Co., Inc., call 19736232626 or visit https://duffyenergy.com/.

## Source

From [Public program registers and member directories](https://findacontractor.pseg.com/HVAC), license No reuse licence stated by the seven registers, checked 2026-11-11.

Last updated November 11, 2026.

## Links

- This heat pump installer on the [web page](<https://heatpumppros.fyi/us/nj/newark/john-duffy-fuel-co-inc>)
- [Ductless mini-splits in Newark](<https://heatpumppros.fyi/us/nj/newark/category/ductless-mini-splits.md>)
- [More heat pump installers in Newark](<https://heatpumppros.fyi/us/nj/newark.md>)