Our Service Area: St. Louis Metro & Surrounding Communities

Proudly Serving the Greater St. Louis Metropolitan Area Since 1978

At Mad Hatter STL, we are a second-generation, family-owned and operated business serving homeowners across the entire St. Louis metro region. Based in O'Fallon, Missouri, our certified technicians travel throughout St. Charles County, St. Louis County, Jefferson County, Lincoln County, and beyond — bringing professional chimney sweeping, air duct cleaning, and dryer vent services right to your door.

St. Charles County (Our Home Base)

St. Charles County is our primary service area and home to our headquarters in O'Fallon. We serve all communities within this rapidly growing county, including:

• O'Fallon, MO — Our home base and headquarters

• St. Charles, MO — Historic city on the Missouri River

• Wentzville, MO — Fast-growing community with new and established homes

• Lake St. Louis, MO — Master-planned community

• Cottleville, MO — Charming suburban community

• Dardenne Prairie, MO

• St. Peters, MO

St. Louis County

We regularly serve homeowners throughout St. Louis County, including many of the area's most established and prestigious neighborhoods:

• Chesterfield, MO — Premier west county community

• Ballwin, MO

• Manchester, MO

• Wildwood, MO

• Ellisville, MO

• Kirkwood, MO

• Webster Groves, MO

• Clayton, MO — Upscale downtown St. Louis County hub

• Ladue, MO

• Creve Coeur, MO

Jefferson County & Outlying Areas

Our service coverage extends south into Jefferson County and select communities in Lincoln and Warren counties. We serve Arnold, Festus, Crystal City, Herculaneum, and surrounding areas. If you are uncertain whether your address falls within our service zone, please call us directly at (636) 946-1622 and our team will confirm availability.

Services Available Throughout Our Service Area

Wherever you are in our service area, our certified technicians bring the same master-level standards to every job:

• Chimney Sweeping & Level 1 Inspections — Creosote removal, flue cleaning, and component inspection

• Air Duct Cleaning — Source-removal negative pressure extraction with our American Caddy Vac truck-mounted system

• Dryer Vent Cleaning — Full duct brushing and airflow diagnostics to eliminate fire risk

• Chimney Repair & Restoration — Flue relining, masonry stabilization, crown replacement, and fireplace upgrades

Why St. Louis Homeowners Choose Mad Hatter STL

• 45+ years of protecting St. Louis area homes — Serving the region since 1978

• Certified & Master-Level Technicians — Our team holds industry certifications and completes ongoing training

• Authorized Chimney Safety Firm Partner — The only authorized remediation partner of The Chimney Safety Firm in the St. Louis area

• No-Mess Guarantee — We protect your home throughout every service, from floor coverings to shoe protection

• Transferable Warranties — Our repairs come with transferable warranties for added peace of mind

Schedule a Service in Your Area

Ready to schedule your chimney sweep, air duct cleaning, or dryer vent service? Call us at (636) 946-1622 or visit our website to book your appointment online. We serve your neighborhood — and we're ready to prove it.