
Commercial Roofing & Exteriors
Commercial roofing.Built around your building.
Roof repairs, replacement, and restoration for commercial and industrial properties throughout Chicago and surrounding suburbs. From the first assessment to the final walkthrough, Diamond gives you a clear scope and one point of contact.
- Chicago-Based
- Clear Written Scope
- One Point of Contact
- Photo Documentation
Single-Ply Roofing
The right system for your roof.
Every building starts with different conditions. We assess your existing roof, drainage, and building use to help determine the right approach—whether that means repairing the current system or installing a new one.
- TPO
- A reflective membrane with heat-welded seams, used on flat and low-slope commercial roofs.
- EPDM
- A flexible rubber membrane used across a wide range of commercial roofing applications.
- PVC
- A heat-welded membrane often considered for buildings where rooftop grease or chemical exposure affects material selection.
System selection starts with the building—not a one-size-fits-all recommendation.


What We Do
Roofing and exterior care, coordinated.
The roof, drainage, and surrounding exterior work together to protect your building. We coordinate the repairs and improvements your property needs.
Roof Replacement & Installation
Single-ply roofing for existing buildings and new installations. Our scope addresses the roof assembly, attachment, flashing, and drainage details required for the project.
Roof Repairs & Leak Investigation
Assessment and repairs for leaks, damaged membrane, failed seams, and flashing problems around walls, drains, and rooftop equipment.
Roof Coatings & Restoration
Protective coating systems for suitable existing roofs. We evaluate roof condition and compatibility before recommending restoration as an alternative to replacement.
Roof Inspections & Maintenance
Scheduled inspections, photo documentation, and maintenance recommendations to help you plan repairs and track the condition of your roof.
Commercial Gutters & Downspouts
Repair and replacement of gutters and downspouts to help move roof runoff away from the building.
Building Exterior Repairs
Flashing, siding, exterior painting, and related repairs, coordinated with the roofing scope to address the areas where roof and wall systems meet.

Standing water and visible roof deterioration
Know Your Options
Start with an assessment.Make an informed decision.
A roof problem doesn’t always call for a full replacement. We document existing conditions, explain the available options, and provide a written scope for the recommended work.
Repair
Address localized damage, leaks, seams, or flashing issues when the surrounding roof remains serviceable.
Restore
Consider a compatible coating system when the existing roof is in suitable condition and necessary repairs can be completed first.
Replace
Install a new roofing system when deterioration or underlying conditions make repair or restoration impractical.
Attention to the Details
Protection depends on the whole roof.
A successful roofing project takes more than choosing a membrane. The supporting assembly, connections, and installation details all deserve attention.
Roof Deck & Insulation
We assess existing conditions and identify necessary deck and insulation work as part of the project scope.
Flashing & Transitions
We address connections around parapet walls, drains, penetrations, and rooftop equipment.
Seams & Attachment
Installation and repairs follow the requirements of the selected roofing system, including its seam and attachment methods.

Working With Diamond
What you can expect from us.
One Point of Contact
Questions and project decisions go directly through Mario.
Updates Along the Way
Stay informed about progress, findings, and any decisions that need your attention.
Consideration for Your Operations
Access, tenants, deliveries, and work areas are considered during project planning.
Plan Ahead
Keep roof maintenance on the calendar.
Roof care continues after a repair or installation. Scheduled inspections and maintenance help you keep track of changing conditions and plan the next steps for your property.
- Roof condition reviews with photo documentation
- Review of accessible seams, flashing, and drainage areas
- Recommended repairs organized by priority
- Follow-up work coordinated through Diamond
Tell us what’s happening with your roof.
Dealing with a leak, planning a replacement, or unsure where to start? Tell us about your property and we’ll contact you to discuss an assessment.
(224) 425-6059