About Us

/About Us
About Us 2018-04-16T21:36:28+00:00

KM Construction Inc. a family owned business was established in 1999 by Ziggy Wierzba. Today Ziggy works with his son Victor Wierzba on every project to ensure all questions are answered and the job is being done as if it were our own home. Ziggy brings over 25 years of roofing experience to handle any challenge.

KM Construction serves the needs of McHenry county, Lake county, Northern Cook county, and the surrounding areas. Our small-business attitude means customer satisfaction is our top priority—we take every opportunity to ensure that our clients are receiving the very best roof work possible, and 95% of our customers are residential. Be it a sectional repair or an entire roof replacement, KM Construction has the tools to guarantee a superior final product. We treat our clients like family giving fair pricing and warranties to back up our work.

130 MPH Wind Warranty

KM Construction Inc. only installs using the highest quality material and labor. Many competitors choose to use cheap “architectural” shingles / products that may cost thousands of dollars less from a big box retailer. Our roofing shingles come with the industry’s highest 130MPH blow off warranty; giving you peace of mind that you will not find missing shingles on your property after a heavy storm.

StainGuard™ Algae Protection

KM Construction Inc. understands that your roof needs to protect you from the elements but also needs to add to the curb appeal of your property. Have you seen those ugly black streaks on roofs? The shingles we install have patented StainGuard™ technology; there are copper infused pellets in the granules that protect your roof from forming those black streaks. And with every installation there is a warranty protecting your roof from those streaks.

Non-Corrosive Metal

KM Construction Inc. installs all new vents and flashings on every new roof installation. Installing these new vents and flashings is to ensure your roofing system is effectively breathing and protecting you from the elements. The new flashings and vents we install are coated and guaranteed to be looking as good as they did when we installed them for the life of your roof.

50 Year Transferable Warranty

KM Construction Inc. registers the GAF Silver Pledge or Golden Pledge lifetime warranty on every new roof. This warranty is only availble because we have achieved the highest level certification from GAF (Master Elite Contractor). Each warranty is fully transferable and gives you peace of mind for 50 years on labor and material for any manufacturer defect.

The warranty also comes with a 10 or 25 year workmanship guarantee backed by the manufacturer. This is the only warranty that is currently availble that the manufacturer actually covers you from installation mistakes. That means you do not have to worry if the contractor you hire is going to answer your call or is still in business if you have an issue.


We understand that the cost of installing a new roof plays a large role in the decision. Not every roof is the same and KM Construction Inc. delivers a superior product and experience from our competitors. We are able to offer financing on most jobs that give you a low monthly payment with no money down. There are no prepayment penalties and we are able to offer financing instantly on the spot. If you have any questions you can contact us about our financing options.