About Us


Mervin Zimmerman founded this company in 1968, starting out with a little red pickup truck and using the family barn as his base of operations. He focused on providing quality plumbing, heating and air conditioning services to residential customers in the local area.

From the beginning, Mervin had a vision of a retail store and showroom where customers could come to see products, get parts and receive advice. From this vision, The Bath Barn was born. Over the years, Mervin Zimmerman Inc. emerged as a leader in custom bath remodeling and continued to provide plumbing, heating and air conditioning service to residential and light commercial customers.

Today, our retail store & showroom features bathroom designs, along with hundreds of bathroom products on display to help our customers visualize their dream bathrooms and make that vision a reality within their ideal budget.

Mervin & Martha ZimmermanMervin & Martha Zimmerman
Mervin & Martha Zimmerman

As a family-owned and service-oriented business, MZI’s mission is to provide the highest quality and workmanship possible while being available 24 hours a day to serve our customers.




Our Staff

Merle Zimmerman

Merle Zimmerman

President

Merle, son of Mervin, began his work experience as a plumber’s helper right out of high school. He quickly moved up the ranks gaining experience in all aspects of the company. As president he continues to be involved in the day to day management of the company to insure customers receive quality service in all areas. Merle is a movie buff and enjoys spending time with his family. Merle and his wife Kimberly are passionate about orphaned children and lead a ministry called Team127 that supports adoption of orphans specifically those with special needs.

Bonnie Hoover

Bonnie Hoover

Office & Showroom Manager

Bonnie started working in the family business beside her father, Mervin, right out of high school and has been in various office positions ever since. Starting out full-time and then transitioning to part-time while she raised her children, she is now back leading the office and showroom. Bonnie enjoys helping customers choose fixtures in the showroom to create a bathroom that fits their style. Along with spending time with her family, she enjoys teaching Children's Sunday School and organizing Bible Quizzing for youth at her church.

Cody Hoover

Cody Hoover

General Manager/Bath Designer

Cody is the grandson of Mervin Zimmerman and began working summers and Saturdays in his teen years in the store and showroom learning the products that we sell. During college he began estimating bathroom remodeling projects and helping customers in the showroom on a part time basis. After college he joined the sales team full time specializing in bath remodeling. Today he is General Manager overseeing all aspects of MZI & The Bath Barn, along with his responsibilities as General Manager he is one of our bath designers working with all projects large or small. Cody enjoys sports trivia, movies and humorous people. He also loves teaching Sunday School at his church. Cody is married to Jodi and has two daughters.

Vickie Martin

Vickie Martin

Office/Service

Vickie has been working here for over twelve years. Her responsibilities include answering phones, and handling all accounts payable and receivable. She is the go to person on our Preventive Maintenance Plans and assists everyone in the office as needed. Vickie enjoys the friendly and comfortable Christian atmosphere at MZI. Family is very important to her and in her spare time she is spending time with them or helping anyone in need. She finds humor in many things and will often be heard laughing in the office.

Ed Halstead

Ed Halstead

HVAC/Plumbing Sales

Ed works with HVAC and plumbing sales and has worked here for over thirty years. Primarily he works on HVAC and plumbing estimates as well as being the HVAC project manager. He enjoys meeting and talking with customers. He has a Refrigerant Transition and Recovery Certificate of completion from Ferris State University. Ed and his wife have two daughters. In his leisure time he enjoys motorcycling, snowmobiling, and spending time with family especially his new grandson.

RJ Milholin

RJ Milholin

Purchasing/Sales

RJ is our lead in purchasing and parts counter sales. He has worked here for over twenty-eight years. RJ works on ordering materials for jobs and stock, answering sales calls, and helping customers at the parts counter. He is a people-person and loves those whom he gets a chance to help as well as his co-workers. He has previously worked in plumbing services, as well as a L.P. Gas Serviceman. RJ loves being with his son and helping others especially his church family.

Cole Hoover

Cole Hoover

Purchasing/Sales

Cole is a grandson to Mervin Zimmerman and son to Bonnie Hoover. He has grown up helping out at MZI and Bath Barn. Cole manages all shipping and receiving of materials along with purchasing fixtures for bath remodels and retail sales. Additionally, he part of the sales team helping customers in the showroom, parts department and as a designer for small bath remodels. Cole loves people and helping them with their bath projects. Cole and his wife Lauren enjoy helping youth with TNT Youth Ministry.


Brian King Staff Photo

Brian King

Field Supervisor

Brian has worked as a Bath Remodeling lead technician for MZI and Bath Barn for over 32 years. His experience and expertise in bath remodeling prepared him well to be able to supervise, advise and teach others in the field. Brian will work with you to make sure your bath project runs smoothly and to problem solve any challenges that come up in the remodeling process. Outside of work, he enjoys going on Mission trips with the church family to areas that need his skills to rebuild and also heading to his cabin to hunt or spend time with family. Brian is married to Marilyn and they have two children.


Tammy Weaver Staff Photo

Tammy Weaver

Project Coordinator/Showroom Consultant

Tammy joined our team as our go to person for Coordinating all our bath remodeling schedules and as an Administrative Assistant to the General Manager. She also helps customers in the showroom as needed. Tammy enjoys preparing the project files and schedules for customers and any kind of organizing that needs done. She is a servant at heart that loves serving our customers and her co-workers. Outside of work, Tammy enjoys spending her time with her husband Bob and their two daughters.


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