You work hard to have the best, so let the professionals at H2O Marine Group take care of all your boat service, storage, and marine needs so you can relax and enjoy your time on the water. H2O Marine Group is a locally owned and operated marine management company focused on providing our customers with a one-stop shop for boat storage, maintenance, service, cleaning, and many other services. We are dedicated to serving the Lake Country community and exceeding our customers' expectations.

About H2O Marine

Locally owned and operated by three long-term Lake Country residents and water enthusiasts, H2O Marine is Lake Country’s premier watercraft services and storage provider.  We have focused on building our team with service-oriented, professional individuals that love water sports, and have a passion for providing outstanding service at an affordable price.

Quality Service 


Boat Storage 
Protect your boat from the elements and keep it in great condition year round

Onsite /Engine Service
H2O Marine offers a wide variety of onsite marine services for our customers

Cleaning & Detailing Choose from our extensive list of cleaning services to meet your needs

Piers & Boat Lifts
H2O Marine can provide all your new & used pier and boat lift sales and service

Used Boats
Servicing hundreds of clients, H2O can often connect customers with boats for sale

Boat Service & Storage

Summer Boat Storage

  • $150/month or $525/season (May 1 – August 31)
  • Free in/out access during M-F business hours (9:00am – 4:00pm)
  • After hours pick-up or drop-off is an additional $25 fee per appointment
  • Must notify office 24 hours prior to schedule after hours access
  • $65/month or $230/season (May 1 – August 31)
  • Free in/out access during M-F business hours (9:00am – 4:00pm)
  • After hours pick-up or drop-off is an additional $25 fee per appointment
  • Must notify office 24 hours prior to schedule after hours access
  • $125 (summer season)
  • $25 (for summer storage customers only upon request)

Winter Boat Storage

  • $1400-$1600 per season
  • $30/ft. per season
  • Storage Only:  $300
  • Shrink Wrap:  $15/ft
  • Shrink and Store:  $15/ft + $200 for storage
  • $125

2021 Spring & Summer Services 

  • To Pier/Lift (2 person)  $165
  • Meet at Launch  $125
  • To Driveway  $125
  • $125
  • $75 (plus fuel charge of current price plus $2.25/ gallon, high octane, treated fuel)
  • Service Includes: Battery charge and check, Engine check/run up to temp, Water pump clear and operating, Drain plug(s) installed, Boat fuel up with treated gas

*Fuel up service is upon customer request otherwise H2O will not fuel the tank prior to delivery

  • Engine service is performed onsite at facility
  • Dockside service calls are available  $100/service call
  • Complete inside and outside boat detailing, waxing, acid washing available: Call for estimate.
  • Dockside Cleaning: Through our partnership with Dockside Watercraft Cleaners, we are able to provide the finest detailing services performed at your pier or driveway.   Scroll below for details and pricing.  Contact us for more details. 

2020 Boat Winterization

  • 2 Stroke Winterization & Maintenance  $170
  • 4 Stroke Winterization & Maintenance  $275
  • Stern Drives (I/O) Winterization & Maintenance  $320
  • Wake/Surf Boat (direct drive & ballasts/heaters)
    Winterization & Maintenance  $500
  • Wave Runner/Jet Skis
  • PWCs:  $240
  • Outboards  $150
  • Inboards/Stern Drives  $225
  • Wake Surf Boats with Ballasts/Heaters/Showers  $325
  •  PWC  $175 

Onsite Engine Service

Home or Dockside
Service Call: $100

  • Engine Tune-ups
  • Wave Runner Service
  • Winterizations/Summer Run-ups
  • Oil Changes
  • Impeller/Water Pump Service
  • Electrical System Service
  • Lower Unit Service
  • Propeller Service
  • Carburetor Service
  • Fuel system Service
  • Steering System Service
  • Welding Service

Boat Cleaning/Detailing

We are proud partners with
Dockside Watercraft Cleaners

Through our partnership with Dockside Watercraft Cleaners, we are able to provide the finest detailing services performed at your pier or driveway.  Complete inside and outside boat detailing, waxing, acid washing is available.  Please call for an estimate.


Pier & Lifts

Looking for a new or used pier or boat lift? Look no further as H2O Marine can assist with all of your needs. We represent several quality pier and lift products suitable for every budget and lake property. If you are
in need of a custom pier or boat lift, our professional sales & service team can make
it happen. Contact us for details and consultation.

Used Boats

Due to our wide customer base, H2O is often made aware of watercraft for sale. Feel free to contact us to learn about current market activity or any existing specific inventory.

We are also available to assist with the pre-sale preparation of your boat and can handle the entire sales process through our brokerage program.

Current Inventory

H2O Reviews

Mark Worgull, Worgull Builders
Hartland, WI
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Had your staff detail my vehicle which is my all- purpose, four years-old truck. They did an outstanding Kobe & my truck looks brand new! Thanks so much for the outstanding work!
Michelle Libesch
Hartland, WI
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Just want to give a shout out to Dave and crew at H2O Marine. Sure do appreciate all they do for us...from auto cleaning, boat storage, boat delivery, boat gas fills, and so much more. All done with the very best attention to detail and the kind of personal service we all crave these days. Give them a try if you haven’ will not be disappointed.
Colleen Haas
Pewaukee, WI
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Dave did an OUTSTANDING job on my Yukon XL! My vehicle was picked up and dropped off on the same day. I was provided another vehicle to use, which was greatly appreciated. Very friendly and professional service. I highly recommend H20 Marine!
Mike G.
Oconomowoc, WI
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We were going to sell our pontoon boat, but it looked moldy and ugly after being stored all winter. Decided to take it to H20 Marine to get cleaned up. They did such an amazing job that we decided to keep it another year. Beautiful work!
Mary Petra
Delafield, WI
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Fast response and service... Thanks, Dave!
Athena Big Mountain
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Absolutely LOVE the portering job the team did on my GMC Acadia! My mats look like new, my visors were deep cleaned and look fantastic! Attention to detail was what I wanted and it is exactly what I got! Thanks H20 Marine!
Cindy Stamm
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Five stars - Great job!
Brad Dettman
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Jake and Colin exceeded all my expectations! I dropped my boat off on a Wednesday and it was fully portered inside and out by day end Thursday. Totally unexpected! They even sent pics of the results prior to me picking the boat up. Great job all around. Thank you Jake and Colin!

Contact Us

General Manager: Jake Breeser

Call/Text:   (414) 573-6991
Physical Address: W360 N8515 Brown Street, Oconomowoc, WI 53066
Billing Address: P.O. Box 238, Nashotah, WI 53058

Customer Service Policy

Customer Service & Storage Policy

All customers agree to the linked policy upon pick up or drop off of customer personal property for storage or service.  

Customer Service & Storage Agreement_ 2018-Current


Invoice & Customer Payment Policy

Customer agrees that for all storage and/or other service rendered by H2O Marine and invoiced to customer,

that payment is due upon customer receipt of the invoice.


Late Penalty: Any unpaid invoice or customer balance that is delinquent 45+ days from the date of the invoice is subject

to a rolling and accumulative 12% monthly penalty to the full balance of the outstanding invoice or customer balance.


H2O Marine Fee/Rate Change Policy

H2O Marine Storage and Service reserves the right to change or update its fee schedule for storage and services

at any time without notice.  It is the sole responsibility of the customer to confirm with H2O Marine personnel the

anticipated standard or estimated service, sales, and/or storage fees prior to services being rendered.

Customer agrees to the H2O Invoice and Customer Payment Policy as provided here in.