Roofing, Siding & Gutter Services
Serving McHenry County & Beyond for Over 15 Years
What We Do
Exterior Work, Start to Finish
Gen Ex Construction has handled roofing, siding, and gutter work across McHenry County for over 15 years. We are a GAF Certified Plus residential contractor and a GAF Certified Commercial Contractor, Google Guaranteed, and A+ rated with the Better Business Bureau. Every job we do carries a 10-year workmanship warranty.
Exterior damage rarely stays in one category. The hailstorm that beats up your roof also dents the gutters and cracks the siding on the same elevation. Because we handle all of it in house, the whole exterior goes on one schedule and, when insurance is involved, one claim. You are not chasing three contractors across three separate trips.
Residential Roofing
Roof repair and replacement for single-family homes across McHenry County.
Roof Replacement
Full tear-off, deck repair, ventilation, and GAF architectural shingles.
Hail & Storm Damage
Free inspections, full documentation, and we meet your adjuster on the roof.
Emergency Services
Active leaks and fresh storm damage. Emergency tarping to stop it now.
Commercial Roofing
Flat and low-slope roofing systems for commercial and business properties.
Multi-Unit & HOA
Phased plans and building-by-building reports for boards and property managers.
Siding Installation
Siding repair and full replacement, including storm-damaged siding and trim.
Gutters & Soffit
Gutters, downspouts, soffit, and fascia, repaired or replaced.
How We Work
What to Expect From Us
Free Inspections, No Contract Up Front
We will never ask you to sign a contract before an inspection that obligates you to work with us. Get the inspection, see what we actually find, and decide from there. If there is no damage, we will tell you that.
We Handle the Insurance Side
Our team is experienced with carriers and adjusters. We photograph every slope, mark test squares, meet your adjuster on the roof, and supplement the scope when the first one comes back short. Claims get denied on weak documentation more often than on weak damage.
Cleanup You Actually Notice
We use the Catch-All landscape protection system on every tear-off, which keeps debris off your lawn and plantings instead of smothering them under tarps, and we run magnets across the lawn and driveway before we leave. It is the thing our customers mention most often in reviews.
Warranty and Financing
GAF Certified Plus status lets us offer manufacturer warranty coverage most contractors cannot, and we back our own labor with a 10-year workmanship warranty on top of it. Financing is available if you would rather spread the cost, and we offer a discount for active military and veterans.
Check Out Our Work
Recent Exterior Projects
Roof & Siding Replacement in Cary
The talented team at Gen Ex recently installed a new Owen's Corning Duration roof and new vinyl siding on this home in Cary, Illinois. This exterior renovation project completely transformed the home's curb appeal. For the shingle roof we installed Owen's Corning...
Roof Replacement in Wonder Lake, IL.
The talented team at Gen Ex recently installed a new Owen's Corning Duration roof along with two new skylights and new gutters on this home in Wonder Lake, Illinois. This exterior renovation project completely transformed the home's curb appeal, natural lighting, and...
New Roof Install in McCullom Lake
The talented team at Gen Ex recently installed a new Owen's Corning Duration roof and new vinyl siding on a home in McCullom Lake, Illinois. This exterior renovation project completely transformed the home's curb appeal. For the shingle roof we installed Owen's...
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Custom Projects
Have a custom project? Call us!


