About Us


Over 90% of our clients – developers, contractors, property managers, architects and building owners – come back to us with their next project. We have earned their trust and loyalty over the past 79 years.


Founded in 1935, Seeback Roofing & Sheet Metal Limited has been providing our customers with customized roofing using the latest in industry technology and practices since 1935. The Deck & Siding Division was added in 1984. This division has grown both in size and reputation and we have gained many repeat customers.

We specialize in new roofing, reroofing, roof maintenance, steel deck and siding for industrial, commercial, institutional and high rise construction.

With over eight decades and three generations of roofing experience, we have built a reputation of excellence with developers, architects, general contractors, roofing consultants and building owners.

We are committed to maintaining the highest industry standards in product value and workplace safety.

We are proud of our corporate commitment to complete all projects on time and on budget.

Our company is currently insured up to $10,000,000.00 and additional insurance can be arranged if required for a specific project. Bonding can be obtained upon request.


  1. Maintaining the highest level of excellence in workmanship;
  2. Using the highest quality materials and state-of-the-art technology;
  3. Delivering project systems on schedule;
  4. Using the latest techniques and equipment available to keep prices competitive; and
  5. Strict adherence to all industry safety regulations.

Our Team


Our principal team and their experience in the roofing/sheet metal & deck/siding industry:

John S. Seeback, B.Sc.President 50 years
John J. Nanninga, Arch.Tech.Sr. Estimator, New Roofing / Re-Roofing 41 years
Joe GrilloEstimator, New Roofing / Re-Roofing 31 years
Bruno RaicSr. Estimator, Deck & Siding 45 years
Kevin J. SeebackPurchasing Agent 45 years
Americo PimentelHead Superintendent, Roofing 22 years
Joe RosaHead Superintendent, Sheet Metal 25 years
Michael BennettSheet Metal Shop Supervisor 18 years


Health and Safety

Seeback conforms to all aspects of the Ontario Health & Safety Act. All Seeback forces are trained in the new MOL Fall Protection and Working at Heights standard, Propane, and WHMIS and are certified accordingly. We have an extensive Worker Orientation Program for new workers and rehires. This program is reviewed yearly with all workers. All roofing and sheet metal work is completed by Seeback’s own forces.

Safety is in everything that we do. Seeback’s policy is to continually improve its safety-first work culture through ongoing education, training and best practices. Our safety procedures are continuously updated through our ongoing membership in:

We retain the services of a Safety Consultant firm, Tickner & Associates, to aid us in updating and keeping our safety practices in alignment with current legislation and to the highest standard of best practices.

Seeback’s Safety Program includes:

  • Weekly Tool Box Talks, Daily Inspection Reports, Pre-Job Start Safety & Work Reviews, Vehicle Safety Inspections and various other Safety Checklists for all projects.
  • Joint Health & Safety Committee
  • Each roofing crew has a Health & Safety Representative, and a minimum of three personnel trained in St. John’s Ambulance First Aid.
  • Corporate OHSMS Policy & Best Practices Manual, updated yearly.
  • Dedicated Safety Classroom to accommodate our ongoing training programs.


Our state-of-the-art equipment receives regular in-house maintenance and repair to keep your job running smoothly, without delay.

Seeback Roofing & Sheet Metal Limited owns and operates a full range of roofing and sheet metal equipment. Our experienced in-house mechanical department ensures that our equipment and vehicles run smoothly throughout each project. We make sure that a service technician can always be dispatched to the job site in order to ensure timely project completion.


Our association memberships allow us to uphold the highest level of professionalism, expertise and technology in our work.

To ensure that we deliver the industry-leading standards of excellence and quality control, our corporate commitment is to be a proud member of the following established industry associations: