GAF WB 2019 Triple Excellence Award

Accepting GAF WB 2019 Triple Excellence Award

KM Construction Inc. was founded in 1999 when Ziggy Wierzba began helping residential customers in McHenry County and surrounding areas. In 2015, Ziggy’s son, Victor Wierzba, joined the KM team and brought a fresh perspective while upholding the core values of the family business. Always dedicated to providing an outstanding customer service experience, the business has grown and now has thousands of satisfied clients. Our installers are one of the many reasons KM Construction Inc. stands apart from other roofing companies. These professionals have the knowledge necessary to successfully complete any challenging project. Rather than taking short cuts, our crews think critically and problem solve not only to fix the current issue, but also to prevent future problems. With KM Construction Inc. completing your project, you can have peace of mind.


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

StainGuard™ Algae Protection

We are proud to offer StainGuard Plus Algae Protection from GAF for our clients. Algae build up on shingle roofs can look unsightly and add years onto the appearance of your roof. GAF StainGuard Plus offers a revolutionary spin on the industry with its time-release technology. Unlike older algae protection technologies, GAF’s StainGuard Plus utilizes copper infused capsules that are designed to release the copper more efficiently and effectively, over a longer time span. Contact KM Construction for more information on algae protection, or about our partnership with GAF.


Non-Corrosive Metal

Installing Non Corrosive Metal vent

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

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 available 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 available 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.



Greensky Financing

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.