Commercial Roofing Services in Minnetonka and the Twin Cities

If you own or manage a commercial property in the Twin Cities, your roof is one of your biggest assets — and one of your biggest liabilities if it's not maintained. Commercial roofing is a different world from residential work. The materials are different, the stakes are higher, and the consequences of getting it wrong affect tenants, inventory, and your bottom line.

Modern Exterior Systems provides commercial roofing services across Minnetonka and the greater Twin Cities metro. We handle flat roof repair, full replacement, preventive maintenance, and emergency leak response for offices, retail buildings, warehouses, multi-family properties, and HOA-managed communities.

Modified bitumen (mod bit): The most common commercial roofing system in Minnesota. Multi-layer asphalt membrane that handles our freeze-thaw cycles well. We install, repair, and coat mod bit systems. Typical lifespan: 15–20 years.

TPO (Thermoplastic Polyolefin): A single-ply membrane that's become increasingly popular for its energy efficiency and weldable seams. TPO reflects UV and reduces cooling costs. Great for new construction and full replacements. Typical lifespan: 20–30 years.

EPDM (rubber roofing): A durable synthetic rubber membrane that's been a commercial roofing staple for decades. EPDM is cost-effective and performs well in cold climates. Its main weakness is the seams, which use adhesive rather than heat welding. Typical lifespan: 20–25 years with maintenance.

Metal roofing: Standing seam and exposed fastener metal systems for commercial applications. Metal is the longest-lasting option (40–60+ years) and handles snow load and ice well. Higher upfront cost, but lowest lifecycle cost.

Built-up roofing (BUR): The original "tar and gravel" flat roof system. Still found on many older Twin Cities commercial buildings. We repair and maintain existing BUR systems, though full replacements typically upgrade to TPO or mod bit.

Commercial roof leaks don't wait for convenient timing. A leak in a warehouse damages inventory. A leak in an office disrupts tenants. A leak in a retail space drives away customers. Speed matters.

We provide emergency and scheduled repair services for all commercial roofing systems. The most common repairs we handle include seam failures on flat roofs, flashing deterioration at parapet walls and penetrations, punctures from foot traffic or fallen debris, ponding water from drainage issues, and membrane blistering or splitting.

Our approach starts with a thorough inspection — including drone imaging for large roofs — to identify not just the obvious problem but any developing issues that could become tomorrow's emergency. We document everything with photos and provide a detailed scope of work before starting any repairs.

When repairs no longer make financial sense, a full replacement is the right move. We help building owners and property managers evaluate options based on budget, building use, energy goals, and long-term ownership plans.

A commercial roof replacement is a significant investment — typically $5–$12 per square foot depending on the system and building complexity. For a 10,000 sq ft building, that's $50,000–$120,000. But a new commercial roof also means a new warranty (typically 15–25 years from the manufacturer), improved energy efficiency, and the elimination of ongoing repair costs that add up fast on an aging system.

We handle the entire process: initial assessment, material specification, detailed proposal, permitting, installation, final inspection, and warranty registration. For occupied buildings, we schedule work to minimize disruption to your tenants and operations.

The smartest money you can spend on a commercial roof is maintenance. A semi-annual inspection program catches small problems before they become expensive emergencies. We offer maintenance agreements that include spring and fall inspections, drain clearing, minor repairs, seam checks, and detailed condition reports.

For most commercial roofs, an annual maintenance program costs a fraction of what a single emergency repair costs — and it extends the roof's useful life by years. Think of it like changing the oil in your car. You can skip it, but you'll pay a lot more in the long run.

Here's something that separates us from most roofing-only companies: we come from a construction background. With 20+ years of building and remodeling experience, we understand how your roof connects to the rest of the building — the structural framing, insulation, HVAC penetrations, drainage systems, and building envelope.

This matters because commercial roof problems are rarely just roof problems. Ponding water might be caused by structural settling. Chronic leaks might trace back to flashing details at a parapet that was built wrong. A roofing-only contractor might keep patching the symptom. We look at the whole picture and fix the actual cause.

We provide commercial roofing services throughout the Twin Cities metro, including Minnetonka, Eden Prairie, Plymouth, Wayzata, Hopkins, St. Louis Park, Golden Valley, Minneapolis, and surrounding communities. Our team is based in Minnetonka, so response times in the west metro are fast.

If you have a commercial roof that needs attention — whether it's an active leak, an aging system, or just a second opinion on what a previous contractor told you — call Modern Exterior Systems at (952) 206-6339 . We'll inspect it, tell you exactly what's going on, and give you a clear plan with honest numbers.