Mad Hatter STL Service Area: Chimney & Air Duct Cleaning Across Greater St. Louis

Since 1978, The Mad Hatter Service Company has protected the hearths, HVAC systems, and families of the greater St. Louis metropolitan area. Based out of O'Fallon, Missouri, our certified technicians travel across a wide service area to deliver industry-leading chimney cleaning, air duct extraction, dryer vent cleaning, and structural chimney repair.

Our Primary Service Areas

We proudly serve homeowners, real estate agents, and property managers throughout the following regions:

• O'Fallon, MO (Home Base) — Our headquarters, where it all began. We serve the rapidly growing communities of O'Fallon with full chimney, air duct, and dryer vent services.

• St. Charles, MO — Serving the historic and growing communities of St. Charles County, including both older masonry chimneys and modern factory-built systems.

• Chesterfield, MO — Providing premier chimney inspections and air duct cleaning for the established and high-end residential communities of West St. Louis County.

• Wentzville & Lake St. Louis, MO — Serving one of Missouri's fastest-growing suburbs with expert chimney and HVAC duct services for both new construction and established homes.

• Ballwin & Ellisville, MO — Trusted by families in these established West County communities for over four decades of reliable chimney and air quality services.

• Wildwood, MO — Serving the rural and semi-rural estates of Wildwood, where proper chimney maintenance and clean air ducts are critical for larger home systems.

• Troy & Lincoln County, MO — Extending our reach to Lincoln County communities, including Troy, where second-generation craftsmanship meets rural Missouri building traditions.

• St. Louis City & Inner-Ring Suburbs — Serving the historic masonry chimneys of St. Louis City, Clayton, University City, and surrounding municipalities with specialized expertise in 20th-century construction.

Services Available Throughout Our Service Area

No matter where you are in the greater St. Louis metro, we bring the full suite of Mad Hatter services to your door:

Chimney Cleaning & Inspection

Our CSIA-certified technicians perform Level 1 and Level 2 chimney inspections, creosote removal, and complete chimney sweeping using the most advanced equipment in the industry. Every service includes an internal video evaluation to document the condition of your flue liner.

Industrial Air Duct Cleaning

We utilize our American Caddy Vac truck-mounted system — generating 12,000 CFM of suction — to perform source-removal air duct cleaning. This industrial-grade process eliminates allergens, construction dust, pet dander, and debris that portable vacuums simply cannot reach.

Dryer Vent Cleaning

Clogged dryer vents are the #1 cause of household fires. Our professional dryer vent cleaning and inspection service reduces fire risk, improves drying efficiency, and extends the life of your appliance — available at every address throughout our service area.

Chimney Repair & Structural Restoration

From tuckpointing and crown replacement to full UL-listed flue relining, our masonry and restoration team builds lasting structural solutions that meet or exceed International Residential Code (IRC) standards. We specialize in Missouri's freeze-thaw damage patterns that affect virtually every chimney in the region.

Why St. Louis Trusts Mad Hatter

• 46+ years serving the St. Louis metro area — a trusted name since 1978

• CSIA-certified technicians with 50+ combined years of field experience

• Missouri's only authorized remediation partner of The Chimney Safety Firm

• Second-generation family ownership with deep roots in the St. Louis community

• Transferable warranties and strict No-Mess guarantee on every job

What Our Customers Are Saying

"We've used Mad Hatter for years. They show up on time, keep everything clean, and the camera inspection gives me real peace of mind every season. There's no one else I'd trust with my chimney in the St. Louis area." — Homeowner, Chesterfield, MO

"After having our air ducts cleaned with the Caddy Vac system, the difference in air quality was immediately noticeable. My allergies have improved significantly. Professional, thorough, and worth every penny." — Customer, O'Fallon, MO

Ready to schedule? Call us at (636) 946-1622 or book online. We serve the entire St. Louis metro area and are ready to bring the Mad Hatter standard of safety and excellence to your home.