Commercial Roof Replacement
in Mt. Lebanon
Full-Scale Commercial Roof Replacements
Engineered Replacements for Aging Commercial Roofs
As a leading roofing contractor offering commercial roofing services in Lebanon, we deliver complete commercial roof replacements built for long-term performance. Our in-house crews remove failing systems and install premium membranes engineered to withstand western Pennsylvania weather, protect your operations, and restore full structural integrity to your facility.
Tear-Off and Re-Roof Solutions Tailored to Your Building
Every property is different, which is why we offer both full tear-off and overlay re-roof options. Our team evaluates your existing system, insulation condition, and structural load capacity before recommending the most cost-effective path forward, ensuring your new roof maximizes ROI without compromising compliance or building performance.
Built to Local Code and Climate Demands
Commercial roof replacement in Mt. Lebanon requires more than swapping out materials, it demands a system designed for freeze-thaw cycles, heavy snow loads, and unpredictable storms. Our factory-trained technicians install every replacement to manufacturer specifications and local code, ensuring full warranty eligibility. From insulation upgrades to improved drainage design, we engineer each replacement to deliver decades of reliable performance for industrial, retail, healthcare, and institutional properties across the Pittsburgh metro region.
Minimal Disruption to Your Business Operations
We understand that a roof replacement can’t shut down your business. That’s why our crews coordinate directly with facility managers and property owners to schedule work around your operational needs – and for facilities not yet ready for full replacement, our Mt. Lebanon commercial roof maintenance program helps extend system life and delay that capital spend. We use phased installation, after-hours scheduling, and on-site safety protocols to keep tenants, employees, and customers safe throughout the project. With clear timelines, real-time updates, and zero subcontracted labor, your project stays on schedule, on budget, and under tight quality control from start to finish.
Commercial Roofing Systems We Install
Choosing the Right Replacement System for Your Facility
Selecting the right replacement system is the single biggest decision in any commercial roof project. At Great Lakes Commercial Roofing, we install the full range of low-slope and steep-slope systems, matching each one to your building’s structure, usage, and energy goals.
Whether your Mt. Lebanon facility needs a reflective TPO membrane for energy savings, a rugged EPDM system for durability, or a PVC roof for chemical resistance, our experts guide you through the trade-offs. Every recommendation is backed by data, manufacturer specifications, and decades of combined field experience installing commercial roofs across Pennsylvania.
TPO and PVC Membrane Systems
TPO and PVC are the top choices for Mt. Lebanon flat and low-slope commercial roofs. Both offer heat-welded seams, UV resistance, and excellent energy efficiency. PVC stands out for chemical and grease resistance, ideal for restaurants and manufacturing, while TPO provides a cost-effective, reflective surface that helps reduce cooling costs year-round.
EPDM and Modified Bitumen Roofing
EPDM rubber membranes deliver proven weather resistance and flexibility, making them a dependable long-term replacement option – and for roofs that aren’t quite ready for full replacement, commercial roof coating systems can be a smart interim step. Modified bitumen systems offer multi-layer reinforcement, perfect for high-traffic roofs or buildings with mechanical equipment. Our crews install both with precision seams, secure fasteners, and full manufacturer-backed warranties for lasting protection.
Metal and Built-Up Roofing Systems
For Mt. Lebanon facilities seeking maximum durability, metal roofing systems provide 40+ years of service with minimal maintenance. Built-up roofing (BUR) layers asphalt and reinforcing fabrics for time-tested protection on industrial and institutional buildings. Both options offer outstanding fire resistance, weatherproofing, and long-term value for property owners.
Why Mt. Lebanon Property Owners Choose Our Replacement Crews
Your commercial roof replacement is a major capital investment, and the team behind it matters as much as the materials. Great Lakes Commercial Roofing is a GAF Platinum Elite Commercial Contractor delivering subcontractor-free excellence on every project.
- GAF Platinum Elite certified commercial contractor
- 100% in-house, security-cleared installation crews
- 25-year GAF product warranty on every system
- Free roof inspection scheduled within 24 hours
Subcontractor-Free Excellence on Every Project
Many commercial roofing companies hand projects off to subcontractors the moment the contract is signed. We don’t. Every Great Lakes crew member is a direct employee, background-checked, drug-tested, and trained to our exact specifications. This means consistent quality, accountable installation, and zero finger-pointing if questions arise. When you hire us for commercial roof replacement, you get the same vetted team from tear-off to final inspection.
Manufacturer-Backed Warranties for Long-Term Protection
Because we hold elite-level certifications with GAF, Holcim Elevate, Mule-Hide, American Weather Star, and Garland, your replacement qualifies for the strongest warranties available in commercial roofing. Our standard 25-year GAF product warranty protects your investment for decades, while optional extended coverage adds workmanship and labor protection.
We also provide full documentation for insurance carriers, lenders, and compliance audits, giving Mt. Lebanon property owners complete peace of mind long after installation is complete.
Quality Commercial Roofing
Fully Insured & Bonded
Assurance backed by comprehensive insurance and workers compensation coverage for complete peace of mind.
No Subcontracted Labor
Roofs are installed by trained technicians, no subcontractors. This means quality work Every. Single. Time.
Top Secret Clearance
Every employee is background checked, drug tested and has passed top security clearance.
Factory Trained
Expertise honed through rigorous training in top-tier manufacturing environments.
BBB A+ Rating
Recognized excellence validated by the Better Business Bureau’s highest honor.
Our Commercial Roof Replacement Process
Comprehensive Inspection and Roof Assessment
Every replacement begins with a thorough on-site evaluation. Using drone imaging, thermal scanning, and moisture detection, we identify hidden damage, saturated insulation, and structural concerns. This data-driven assessment ensures the replacement system we recommend addresses the true condition of your roof, not just the visible surface issues.
Transparent Proposals and Clear Communication
After inspection, you receive a detailed written proposal outlining recommended systems, scope of work, timeline, warranty options, and total investment. We walk you through every line item, answer questions in plain language, and provide cost-benefit comparisons so executive decision-makers can move forward with complete confidence and clarity.
Professional Installation and Project Close-Out
- Site preparation – tenant notifications, equipment staging, and protective coverings installed
- Controlled tear-off – existing roof removed in sections to keep your facility weather-tight
- System installation – new insulation, membrane, flashings, and drainage installed to spec
- Quality inspection – multi-point review by project manager and manufacturer rep
- Final close-out – warranty registration, documentation package, and post-project walkthrough
Schedule Your Free Commercial Roof Replacement Consultation
When it’s time to replace your commercial roof, you deserve a partner who treats your property like a long-term investment, not a quick transaction. As a GAF Platinum Elite Commercial Contractor with 99+ years of combined team experience, we bring the technical expertise, manufacturer relationships, and financial stability needed to deliver replacement projects that perform for decades.
Whether you manage a single building or a multi-property portfolio, our team is ready to help you protect your facility, reduce operating costs, and eliminate the stress of an aging roof. Contact the trusted commercial roofing company in Pittsburgh today and schedule your free 24-hour roof inspection; no pressure, no obligation, just expert guidance you can trust.
Our Service Areas
- Butler, PA
- Cleveland, OH
- Oil City, PA
- Erie, PA
- Corry, PA
- Monroeville, PA
- Pittsburgh, PA
- Warren, PA
- New Castle, PA
- Meadville, PA
- Cochranton, PA
- McKeesport, PA
Browse our Commercial Roofing Portfolio
Clinton Municipal Airport
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Ashley Furniture
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Dura-Bond Pipe Inc
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Appliance Dealers Co-Op
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Oolong Aisian Cuisine
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We have the experience!
495+
Customers
595+
Completed
Commercial Roofs
18+
Winning Awards
8+
Highly Trained
Project Managers
Testimonial
Don't take our word for it, hear from our customers!
Russell Jenkins
The guys from Great Lakes commercial roofing LLC were extremely professional. Kenneth came out and was extremely informative and knowledgeable in regards to roofing. We were extremely pleased with his work and the end product. We highly recommend Kenneth and the guys from Great Lakes commercial roofing
E Frogwell
When it comes to a company that will get the job done right you have to go with Great Lakes Commercial Roofing. Zac is easy to work with and very knowledgeable about many different products and options. Don’t make the mistake I did and call a contractor that is mainly a residential roofer to look at your industrial roof unless you like wasting money
Tom Havacheck
Great company to work with! I have a building in Pennsylvania but live in another state. My roof was leaking and Zac was sent out and did the inspection on the roof. When he was at the building he called and sent me a link to live pictures
Jason Bakus
These guys are awsome. Great job from start to finish. Did our large commercial catering hall. Always available if we have a question or concern. Roof looks great and best of all. No more leeks. Defiantly recommend
Matthew DeLibero
I’m very satisfied with my new roof. The installers worked around my schedule and did a nice job!
Conrad Miler
Your dedication to quality and service have made working with you a pleasure!
Barb Goliad
I called Great Lakes Commercial Roofing to come check out my building. I had a company put silicone roof coating on it 5 years ago and since day one it never stopped the leaking problems, the other company came out 5 times to “fix the problem” but never did. Zac came out and evaluated my problem and gave me a ton of information on the best solution to fix the problem.
Core Values - C.H.I.L.
- Communication: Maintaining open and clear communication with customers, employees, and vendors.
- Humility: Staying open to feedback, ideas, and other perspectives. Humility means recognizing that we’re all still learning — and better together.
- Integrity: Doing the right thing — even when no one’s looking.
- Loyalty: A deep commitment to the organization’s mission, values, and success.
Schedule a no-pressure roof assessment today!
Let our drone technology provide you with a precise, comprehensive roof evaluation. Using thermal imaging and advanced scanning, we’ll assess your roof’s condition and recommend the ideal roofing system for your commercial property.
Please choose a location and contact us today!
