Metro Detroit’s Most Trusted Tub to Shower Conversion & Bathroom Remodel Experts

Our Reviews

Reviews from

Millie B

“I highly recommend Marathon Bath Systems. I hired them for a major bathroom remodel, and they really delivered! Their work was top shelf perfect. They showed up every day on time and ready to work. They respected my home and kept the work site clean. Because of the quality of their work, I hired them to remodel my son’s bathroom. My son sent me a video of the completed job and all he said throughout the video was “awesome;, awesome, awesome.” We are both pleased with the work of Marathon Bath Systems. If you are looking for quality, hire them!!!!!!!”

Floyd and Karen W

“Everything went great. My installers were on time as promised. The project was completed in a very professional manner. Before the project was started, every phase was explained. upon completion I was completely satisfied. I have recommended this company and my tow installers to family members and friends.”

Ravi C.

“Amazing professionals. Everything was done very professionally, time efficient, clean, knows what they are doing, very experienced. Very happy with the job, will call again for my next project.”

Pradhap M.

“We have done replacement of Old jacuzzi type tub with walk in shower. Robert is a perfectionist, he gave the tile models, explained entire process, and was very informed and honest throughout the process. He is punctual in the work and made all necessary precautions for replacement and the entire process took 2 days. Quality of work is Awesome. I would recommend him for others.”

Duncan M.

“The tub to shower conversion went great! The installers were prompt (they actually showed up a little earlier than expected) and courteous. They paid attention to details and offered suggestions that were improvements over the original plan as the installation progressed. They also put down runners to make sure my tile and wood floors didn’t get scratched. Then, when the job was done, they made sure everything was cleaned up and they hauled off all of the old waste materials and packaging. I will definitely hire them again on any future remodeling projects!”

Kevin G.

“Professional, established conformation of time to install walk-in shower after demolition, removal of tiled walls, tub and plumbing. Organized and administered flawlessly. Helped me personally resolve a plumbing issue that was not part of the job but needed to be done while in demolition, Thank You. Kept me informed daily as to what and how install progression took place, and I must add in a timely manner, most professional installer I’ve ever hired to date. Complete, polite, comprehensive, clean and most excellent follow up . Will hire again and again. You are the best of the best ! Thanks.”

Keith A.

“It went great. Installer was excellent. Showed up on time everyday. Top quality precision work. My bathroom looks tip top. I couldn’t be happier.”

Tom A.

“Excellent workers and wonderful attention to details.”

Pat W.

“Excellent work and quality service. Would recommend and use his service again.”

Melanie A.

“Excellent work. Very impressed. Very professional. Called back whenever I had any questions. Highly recommend.”

Marie L.

“Rob & Alex did a great job. They were very courteous, professional and attentive to details. We could not be more pleased with the work they did 👍👍.”

Georgia B.

“The company replaced my wet area by installing a new shower for me. The job was well done and satisfying I will recommend Marathon to anyone, I am happy customer.”

June S.

“It went fantastic. Best work I have ever had by a Contractor in my 73 years. I highly recommend Marathon to all my family and friends. The job they did is just beautiful! “

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Why Choose Marathon Bath Systems?

We are an experienced home renovation contractor with more than 20 years in the construction industry and can handle any type of bathroom renovations from demolition to final painting. We are a lean and efficient operation and that allows us to pass on significant savings to our customers without sacrificing quality. We have completed hundreds of tub to walk-in shower conversions and maintain an outstanding reputation for unbeatable value and quality in the local community.

Over 20 years experience

We have over 20 years experience in the construction industry and can handle any type of bathroom renovation.

Superior Craftsmanship

We pride ourselves in our superior craftsmanship, and our attention to detail is second to none.

We're highly rated

We have a perfect 5 star rating on and We are also a Google Guaranteed  local contractor.

Locally owned & operated

Unlike many of our competitors, we're based in Metro Detroit and take great pride in serving our local community.

Personalized Service

No two jobs are ever the same and we always provide a personalized service based on your unique needs.

Unbeatable price & quality

We’ll beat any of our corporate competitors on both price and quality.