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Commercial Roofing

  • Multi-Unit Roofing

  • HOA Sloped Roofing

  • Flat or Semi-Flat Roofing

  • Metal Roofing

Flat, semi-flat, and metal roofs are popular choices for business and industrial buildings. Typically, flat roof replacement is quite expensive, but at Signature Exteriors, we can save you money as well as complete the flat roofing project without disrupting your business or tenants.   


From apartment complexes to commercial buildings, when it comes to your roofing needs, you can count on us for quality material, fair and honest pricing, and a friendly, working relationship! 

When you’re bidding your roof to other contractors, you can’t afford to work with anyone who doesn’t take your project as seriously as you do. Your business is important to you, so your satisfaction is important to us, and we listen carefully and work hard to make your life easier.

As a property manager, you know that the roof is one of the most important components of your commercial building and it’s essential that it keeps your tenants, their customers, and all equipment safe and secure from rain, snow or sleet. Installing, replacing or repairing commercial roofs is a major investment in your property, so you can rest assured that there will be minimal or no impact to your tenants.

Flat roof replacement can be quite expensive, but we can save you money as well as complete the flat roofing project without disrupting your business or tenants. Because flat roofing is much different than sloped roofing — from ensuring that it’s water tight to making it sturdy enough to withstand heavy rains — you need an expert roofing contractor that you can trust to know exactly what they’re doing. 

We not only offer a variety of roof, gutter and siding materials, trusted manufacturers, installation methods, and prices, we’ll also help you determine which roofing option is best for your specific needs—and provide a stress-free experience for you, too! 

We repair, replace and install: 

  • Multi-unit roof 
  • HOA commercial roof 
  • Flat or semi-flat roof
  • Metal roof

We serve:

  • Property Management Companies 
  • General Contractors
  • Commercial Real Estate Agents
  • Insurance Agents

We specialize in:

  • Free Evaluations and Estimates
  • Storm Damage Restoration
  • Insurance Claim Assistance/Insurance Restoration
  • Roof Repair and Maintenance
  • Roof Replacement
  • New Construction
  • Copper Smithing 
  • Low Slope Roofing Certified
  • Flat Roofing
  • Emergency Roof Repair

We proudly use these materials:

  • Shingle Roofing
  • Owens Corning Roofing
  • TPO Roofing
  • Modified Bitumen Roofing
  • Rolled Roofing
  • EPDM Roofing
  • Mulehide Roofing
  • Copper Gutters
  • Aluminum Gutters
  • Vinyl Siding
  • Hardie Siding

We’ve got you covered in:

  • St. Charles County
  • St. Louis County
  • Jefferson County
  • Warren County
  • Franklin County

Signature Exteriors is a local roofing contractor with a broad reach that guarantees a professional, friendly, stress-free roofing experience for any exterior project.

We offer a limited lifetime warranty! 

Call us right now for a free inspection and estimate at (314) 827-5376—we’re always happy to answer any questions you have!