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Commercial Roof Installation




Types of Buildings

Flat, Metal, & Low Slope Roofs

  • Commercial
  • Apartments
  • Manufacturing
  • Churches
  • Government
  • Industrial
  • Retail Buildings
  • Schools
  • Hosptials
  • Everything Else

Commercial Roofing Installation & Replacement

New Construction & Existing Buildings

Every roof has a life cycle and there comes a point in time when it makes sense to stop repairing and replace instead. 

Sentry Roofing provides expert commercial roofing installations and replacements for flat roofs, metal roofs and low slope roofs in Indiana and Illinois.

Because replacing a roof is often a large, capital expense, we realize that building owners and facility owners need to feel comfortable in their decision and the team they choose to do the job. 

With over 35 years of building our team in the industry and satisfying our customers, our roofing crews ensure the job is done correctly with minimal mistakes while bringing a knowledgeable, dependable, honest and courteous attitude to every job site.  

Commercial Roofing Installations Illinois
Duro Last Commercial Roofing Contractors Illinois


Once you’re ready to move forward, we’ll meet with you to determine a plan that has the least amount of disruption to your day-to-day business. 

We’ll adapt our approach to fit the unique environment of your facility and working practices. We will conform to your safety standards, working hours, parking limitations building access and other standards you may have. 

Whether you’re an urban retail location with heavy traffic or you’re a distribution or manufacturing center that operates 24-hours a day, we will accommodate your needs.

Commercial Roofing Services Indiana


When we begin the installation of your commercial roof and we arrive on site, we consider ourselves guests and behave as a guest should. 

We make every crew member aware of any special requirements you have before they arrive on site to begin work. We respect your building, employees and project as if it were our own.

Commercial Roofing Company Illinois


Once we’ve agreed upon a plan and timeline, our men will begin work. But, communication doesn’t stop once work has begun. 

If any issues arise, whether weather, unforeseen building conditions, or an unexpected change in your operations – we’ll communicate with you and take whatever steps are necessary to conform to the situation. 

Have a question along the way? We will answer or address questions or concerns at any time and make adjustments immediately.

Why choose Sentry Roofing for your building's roof installation?

  • Honest, thorough roof evaluation in writing
  • Details and photographs of any issues noted on your rooftop
  • Professional guidance on the best option based on budget, building structure and need
  • Address project logistics, site safety and any concerns regarding construction
  • Estimated timeline and project completion date

Roofing Products We Use & Trust

Made to fit your building, installed by an authorized contractor, backed by the industry’s best warranties.

Duro Last - Commercial Roofing Repair
Firestone Building Products
GAF Materials - Commercial Roofing Repair

Protect your facility, business and building occupants with a contractor team you can trust!

Get a Free Rooftop Evaluation