If you are a geothermal contractor and would like to be listed on our Preferred Contractors Page, please call me.  There is no charge to be listed here.  I simply list those contractors that I have a comfortable working relationship with. These men make sure that your job is done right.



Pay Us Here

Jerry Brown

Brown Heating and Air Conditioning, Inc.

633 S Main St

Deerfield, WI 53531-9450

Phone:  608-764-8649



Dan Green

Water Source Heating and Cooling, Inc.

3650 Greenway Street

Eau Claire, WI 54701

Phone: (715) 833-9001



Dan Walsdorf

Advanced Custom Geothermal

P.O. Box 255

Kiel, WI 53042

Phone: 920-894-3999



Wade Wilson

Lake Country Heating & Cooling

N6333 Hwy F

Oconomowoc, WI 53066

Phone: 800-287-0575



Mark Doll

Professional Geothermal Systems

P.O. Box 12

Port Washington, WI 53074

Phone: (262) 268-9767



Brandt Eisenga   (Residential Division)

G.O. Loop

W11366 Blanecae Rd

Randolph, Wisconsin 53956

Phone: 920-326-2050



Jeff Derousseau

Derousseau Heating & Cooling, Inc.

24771 Foley Ave

Tomah, WI 54660


Phone: 608-374-4703



Mark Flock

Flock's Heating & Air Conditioning

27551 County Highway U Cashton, WI 54619


Phone:   608-654-5522



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