Chimney & Masonry Repairs

Fireplace Refacing & Repairs

Home Services

Chimney Caps & Custom Chase Covers

Masonry Restoration

Leonard & Sons — Chicagoland’s Third Generation Family-Owned & Operated Chimney & Masonry Care Company

Here in Chicagoland, you never have to look far for something to do, eat, drink, or enjoy, which is partly what makes the greater Chicago area such a great place to live. The options for entertainment and dining are virtually limitless, and you can always find just what you’re looking for, no matter what your heart desires. When it comes to service companies in the area, you also have options, but we hope that when you need chimney and masonry care, you’ll call on Leonard & Sons Building Service.

We’re local and have been serving our neighbors throughout Chicagoland and the northwest suburbs since 1966. As locals ourselves, we truly care about our community and about making the homes of our neighbors as safe and as beautiful as possible. Whether we’re saving our neighbors money by installing a top-sealing damper cap or fixing a chimney leak or we’re keeping our neighbors’ fire risk low by cleaning their dryer vents, our customers’ well being is at the heart of what we do every day. We continue to maintain our high level of customer satisfaction through respectful concern for each and every client.

Current Safety Updates

We want our clients to know that we are currently taking extra safety precautions when we do work inside your home. We are also offering Virtual Chimney Assessments as an option to give an initial assessment of your chimney without coming into your home. To get started with our virtual chimney assessment, please click here.

Our Education & Qualifications Are Unmatched

On top of the decades of experience, we have enhanced the business by obtaining certifications in multiple areas of chimney functions and dryer vent safety, because we recognize the importance of continuing education to stay current with new findings.

As CSIA-certified chimney sweeps and CSIA dryer exhaust technicians, we hold the highest level of certifications and qualifications within a 50 mile radius of zip code 60102. In order to earn these credentials, our technicians have demonstrated a commitment to fire and venting safety and hold themselves to the highest standards.

Our techs are certified in Advanced Inspection and Documentation, Chimney Physics, Diagnosis and Documentation, Inspection and Report Writing, Installing and Troubleshooting Gas Hearth Appliances, Installing and Troubleshooting Wood-Burning Hearth Appliances, and Lining Masonry Chimneys with Stainless Steel. We’re Certified Chimney Sweeps, Certified Dryer Exhaust Technicians, and graduates of the National Chimney Sweep Training School, so you can be confident we know our stuff.

Serving Chicagoland Since 1966

We’re proud to serve northwest suburbs of the Chicagoland area! Whether you’re in Barrington, Bull Valley, St.Charles, or Lakewood we’re happy to take care of your needs. To see all of the areas we serve, visit our service area page. And feel free to reach out if you have any questions!

“Where Quality Still Matters”

Are you ready to work with a chimney and masonry company where quality still matters? Give Leonard & Sons Building Service a call at 847-658-7659 or fill out our online scheduling form — from your chimney cap to your building project, we’re here to help!


You will love the chimney and fireplace services provided by Leonard & Sons Building Service throughout the greater Chicago area.

1201 W Algonquin Rd, Algonquin, IL 60102

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Awards & Associations

Chimney Safety Institute of America Certified Chimney Sweep Logo
Chimney Safety Institute of America Master Chimney Sweep Logo
Chimney Safety Institute of Certified Dryer Exhaust Technician Logo
National Chimney Sweep Guild Member Logo