Serving The Whitefish Chain Since 1977

Bertha Boatworks

New & Used Boats · Service · Storage · Rentals

On the water. The way it should be.

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Find What You Need Fast

Whether you are booking a rental, scheduling service, or browsing current inventory, these shortcuts take you straight to the pages our customers visit most.

 RentalsBook a South Bay pontoon for your next day on the Whitefish Chain.Explore  StorageIndoor and outdoor storage, shrink wrap, and gas dock fuel service.Explore  ServicesOil changes to full engine rebuilds, handled by our own service team.Explore
 In Stock BoatsBoats ready to hit the water now, no waiting on an order.Explore  ShowroomBrowse the full South Bay and Mercury Marine lineup in person or online.Explore  Value Your TradeFind out what your current boat is worth toward your next purchase.Explore  Get A QuoteTell us what you are looking for and we will get back to you with pricing.Explore  ConsignmentLet our team sell your boat for you, backed by real foot traffic.Explore  Parts RequestLooking for a part for your boat or PWC? Tell us what you need.Explore
Current Inventory

Featured Boats And Pontoons

A look at some of what we have in stock right now, from new South Bay pontoons to pre owned boats ready for the water. Browse our full inventory to see everything available.


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Customer Reviews

What Our Customers Are Saying

Real feedback from boaters across the Whitefish Chain, shared through Google. See why our customers keep coming back for sales, service, and rentals.

DJ
Dayne JonsrudAugust 2026

Art, Jeremiah, and the whole team at Bertha Boatworks deserve commendation. I brought a boat to them with some intermittent issues and they were able to understand what I needed and have it fixed in a day. It's not cheap, but I certainly feel like I got what I paid for.

NF
Nate FischerAugust 2026

Jodie and her husband were amazing today. I called with a last minute prop change and they squeezed me in before their rentals started arriving for the day. Great business and great people.

LL
Laurie LeighOctober 2025

Knowledgeable, friendly staff. Honest and fair pricing. We know we can count on Bertha Boatworks for our annual winterization, and any other maintenance that comes up along the way.

BN
Bill NejaSeptember 2025

Great pontoon rental.

AN
Andy NolanSeptember 2025

I have purchased a boat and rented one as well, both experiences were perfect. Staff is wonderful and efficient.

JW
Jeremy WallinSeptember 2025

Great place to stop in and fill up your watercraft, boating accessories and even food on the weekends.

JB
Jason BacaSeptember 2024

We rented a pontoon. Very nice staff. Great pontoon. Convenient location and you can drop off after hours. I will do it again.

SO
Stephanie OlsonSeptember 2024

Need work on your boat? This is where you go. Knowledgeable and reliable. Can't go wrong.

ST
Show TimeSeptember 2024

Good place for winterizing your boat and storage.

 
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Serving The Whitefish Chain Since 1977

Get To Know
Bertha Boatworks

For more than 42 years, Bertha Boatworks has brought marine sales and service excellence to the Whitefish Chain of Lakes. We are an authorized South Bay, Mercury Marine, and Yamaha Marine dealer with a full sales, service, and parts team on site, and our showroom sits right on the water so you can see a boat and take it out the same afternoon. Learn more about us

Authorized DealerNew and pre owned sales, factory backed service, and genuine parts for every brand we carry.
Services Rentals Storage In Stock Boats
Bertha Boatworks marina on the Whitefish ChainSouth Bay pontoons at Bertha Boatworks