Since the day we opened our doors more than six decades ago, our mission has been simple: to provide dependable plumbing and water treatment solutions for families and businesses throughout McHenry, Lake, and Kane counties, as well as Southern Wisconsin. What began as a small family operation has grown into one of Northern Illinois and Southern Wisconsin’s most trusted names in home comfort and plumbing services, and we continue to grow because of customers like you.
At Garrelts & Sons, we don’t just fix problems, we work to prevent them. Our licensed technicians follow the highest quality standards in the industry, and we back every job with a commitment to 100% customer satisfaction. From emergency plumbing repairs to water treatment installations, we approach every project with the same care and professionalism we’d expect in our own homes.
Three generations of experience, built on trust and customer care.
Most calls are answered the same day, because your time matters.
When the unexpected happens, we’re always just a call away.
Plumbing, water treatment, sewer and water, and even remodeling, we truly are your one-stop shop.
Authorized dealer for the leading names in plumbing, heating, cooling, and water treatment.
Contact our fast and friendly team today to get started with your next project.







We believe a successful business should also be a good neighbor. Over the years, Garrelts & Sons has proudly supported schools, charities, and local organizations that make our community stronger.
While our roots are in McHenry County, our eyes are always on the future. We’re continually expanding our capabilities, adopting new technology, and finding ways to better serve our customers. What will never change is our dedication to honesty, quality, and family tradition.
Thank you for taking the time to get to know us. Whether you need plumbing repairs, a new heating and cooling system, or simply want advice on improving your water quality, Garrelts & Sons is here to help.