# Haak Heating Inc.

Haak Heating Inc. is listed as a heat pump installer in Appleton, WI, United States.

Haak Heating Inc. appears on the Focus on Energy register (Trade Ally contractor), with an address in Appleton, WI. Services named in the source: HVAC.

## Details

- Address: 1824 N LOCUST ST, Appleton, WI, 54914-2652, United States
- Phone: [19207346937](<tel:19207346937>)
- Website: [www.haakheatinginc.com](<https://www.haakheatinginc.com>)
- Register or agency named in the source: Focus on Energy
- Source of the listing data: Focus on Energy (Wisconsin utilities / PSC), https://focusonenergy.com/trade-allies?searchType=home&distance=all&serviceType=residential-hvac, fetched 2026-11-10. Map pin from Overture Maps Places (CDLA-Permissive-2.0, release 2026-10-21.0).

## Questions

### Where is Haak Heating Inc.?

Haak Heating Inc. is at 1824 N LOCUST ST, Appleton, WI, 54914-2652, United States.

### How do I contact Haak Heating Inc.?

To contact Haak Heating Inc., call 19207346937 or visit https://www.haakheatinginc.com.

## Source

From [Public program registers and member directories](https://focusonenergy.com/trade-allies?searchType=home&distance=all&serviceType=residential-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/wi/appleton/haak-heating-inc>)
- [Air-source heat pumps in Appleton](<https://heatpumppros.fyi/us/wi/appleton/category/air-source-heat-pumps.md>)
- [More heat pump installers in Appleton](<https://heatpumppros.fyi/us/wi/appleton.md>)