Bontrager specializes in boat repairs ranging from fiberglass deck finishing to routine gelcoat applications, buffing, and polishing.

After more than three decades in the industry, we earned a reputation for excellent repair work and customer service. As a result, we are called in by hotels from all over the U.S. and the Caribbean to handle major fiberglass shower and bathtub repair projects.

We offer a range of expert services, including:
Fiberglass Services, Repairs, and Restorations:

  • Boats
  • Bathtubs
    • Walk-in Bathtub Conversions
    • Permanent Slip-Resistant Bottoms
  • Showers
  • RVs
  • Motor Homes
  • Tanks
  • Hot Tubs
  • Any Fiberglass Products!
Old boat on trailer

Other Material Refinishing and Repair:

  • Porcelain
  • Cast Iron
  • Cultured Marble
  • Vinyl Window's
  • Fiberglass Window's
Fiberglass Window

Fiberglass Window Damaged

Fiberglass Window

Fiberglass Window Repaired


When it comes to boat repairs, we prefer to work in our shop in order to guarantee the highest level of quality.

However, our staff can travel as far as southwest Michigan and northern Indiana to provide on-site services for other projects, such as tub and shower repairs.

Our Michigan Service Areas Include:

  • St. Joseph
  • Benton Harbor
  • Kalamazoo
  • Battlecreek
  • Marshall
  • Coldwater
  • Sturgis
  • Niles
  • New Buffalo

Our Indiana Service Areas Include:

  • Angola
  • Ft. Wayne
  • South Bend
  • Mishawaka
  • Granger
  • Elkhart
  • Goshen
  • Michigan City

Call us today for a free estimate!