Watertown, South Dakota, Commercial Roofing Contractor – Pro-Tec Roofing and Sheet Metal



Monday 8:00 AM – 5:00 PM
Tuesday 8:00 AM – 5:00 PM
Wednesday 8:00 AM – 5:00 PM
Thursday 8:00 AM – 5:00 PM
Friday 8:00 AM – 5:00 PM
Saturday Closed
Sunday Closed

Commercial Roofing Contractor in Watertown, South Dakota


Pro-Tec Roofing and Sheet Metal, a Tecta America Company, is a commercial roofing contractor in Watertown, South Dakota. Established in 1987, they are one of the most valued roofing contractors in the Midwest by priding themselves on consistently providing quality products and workmanship.


Servicing South Dakota, North Dakota and western Minnesota Pro-Tec offers top-notch service and repair ensuring 100% satisfaction from start to finish and beyond. We bring over 60 years of combined roofing experience using the most advanced concepts and systems in the industry. Our services are affordable and we guarantee you will be satisfied with the final project.


We do it all.

  • Ballasted roofing
  • Roof maintenance & repair
  • Fully adhered roofing
  • Metal retrofit roofing
  • Metal roofing
  • Roof Coatings
  • Seamless gutter repair and replacements
  • Sheet metal
  • Single-ply rubber roofing
  • Waterproofing

Pro-Tec has received the Carlisle ESP (Excellence in Singly Ply) award for the past 15 years. A select group of authorized applicators has received this honor.

We take great pride in the talented and experienced people that surround our company.  Taking pride in your work and treating others with respect are hallmarks that we believe separate us from most of our competition.

In 2018, we celebrated 50 years in business. In 2020, we were acquired by Tecta America, the national leader in commercial roofing.

“We are excited about becoming a part of the Tecta America team and the potential of B&L Sheet Metal & Roofing moving forward with the support of Tecta.  We look forward to continuing to provide roofing and sheet metal services at the highest level to all of our customers in the region,” said David Lee, President, and Owner, B&L Sheet Metal & Roofing.


Pro-Tec Roofing and Sheet Metal is a member of the National Roofing Contractors Association and has been an authorized Carlisle applicator since 1987


Tecta America Corporation has grown to over 70 locations nationwide, becoming one of the largest roofing contractors in the United States. It is an approved applicator of  GAFJohns ManvilleCarlisle, and Firestone and all other major manufacturers’ roofing material.


Tecta America is Roofing Redefined.

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Adam Stemwedel


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Pro-Tec Roofing and Sheet Metal, a Tecta America Company