It’s Time to Get to Proven Power in Oconomowoc or Waukesha.

We carry John Deere / Stihl / Honda power equipment, Premier Portable Buildings and Green Mountain Grills! Proven Power takes care of all your outdoor lawn care needs. John Deere: Lawn tractors, zero turn mowers,  Gator Utility vehicles, compact tractors. Stihl products: Chain saws, string trimmers, leaf blowers & safety gear. Honda: push mowers, snow blowers & generators. Along with Small engine maintenance and repair…blade sharpening…chain sharpening.  With locations in Oconomowoc and Waukesha, WI, we are close by when you need us.

How Can We Help?

Email Us!



Monday |8:00am-5:30pm
Tuesday | 8:00am-5:30pm
Wednesday | 8:00am-5:30pm
Thursday | 8:00am-5:30pm

Friday | 8:00am-5:30pm
Saturday | 8:00am-1pm
Sunday | Closed

Father’s Day Prize Winner

May 7th, 2019|Comments Off on Father’s Day Prize Winner

Proven Power's Father's Day contest winner is Chris Hmielewski.  Chris took home a Green Mountain Grill prize pack Congrats!!

Premier Portable Buildings on Sale Now!

September 26th, 2017|Comments Off on Premier Portable Buildings on Sale Now!

Premier Portable Building In-Stock Sale Premier Portable Building In-Stock Sale All 2017’s in stock are now 15% off All 2016’s in stock are now 22% off Call to see what we have on our lots [...]

Check Out What Our Customers Are Saying About Us

April 6th, 2017|Comments Off on Check Out What Our Customers Are Saying About Us

Dear Proven Power Manager, Seems like nowadays, everywhere you go, people are quick to complain...often about such minor or mundane issues.  I am writing this letter to offer the opposite. Having had some issues with [...]

Contact Us

Phone: 920-474-4890
Address: N68 W36046 Hwy K
Oconomowoc, WI 53066

Phone: 262-679-0100
Address: S65 W22065 National Avenue
Waukesha, WI 53189



Monday-Fri | 8:00am – 5:30pm

Saturday | 8:00am-1pm

Sunday | Closed