Mad Hatter STL Service Pricing Guide – Chimney, Air Duct & Dryer Vent Cleaning
- joseph mack
- Jun 26
- 2 min read
Transparent Pricing for Every Service We Offer
At The Mad Hatter Service Company, we believe in upfront, honest pricing. There are no hidden fees and no surprise charges. Below is a breakdown of our current service pricing for St. Louis and O'Fallon, MO area customers. All pricing is subject to a final on-site assessment for repair work.
Chimney Services
Level 1 Chimney Sweep & Inspection (includes internal video scan): Starting at $149 – $199
Gas Appliance Clean & Check (gas fireplace / insert): Starting at $129 – $179
Level 2 Forensic Diagnostic Chimney Audit (via The Chimney Safety Firm): Contact us for current pricing
Air Duct Cleaning Services
Whole-Home Air Duct Cleaning (up to 10 vents, includes negative pressure extraction): Starting at $299 – $399
Additional Vents (beyond 10): $15 – $25 per vent
HVAC Component Decontamination & Air Handler Cleaning: Included with full service
Dryer Vent Cleaning Services
Standard Dryer Vent Cleaning (includes airflow diagnostics, mechanical brush cleaning, performance check): Starting at $99 – $149
Transition Hose Replacement (if needed): $49 – $79 (parts + labor)
Repair & Restoration Services
Repair and restoration pricing is custom-quoted after a diagnostic inspection, as each project varies based on scope, materials, and accessibility. Common services include:
UL-Listed Stainless Steel Flue Relining: Starting at $1,500+ (varies by liner diameter and length)
Tuckpointing & Masonry Repair: Starting at $300+ (quoted per project)
Crown Replacement (reinforced concrete): Starting at $450+
Full Chimney Rebuild: Quoted individually – contact us for a free assessment
Bundle & Save
Chimney Sweep + Air Duct Cleaning Combo: Ask about our multi-service discount
Annual Maintenance Plan: Bundle chimney + dryer vent annual cleaning at a preferred rate
Ready to schedule? Call us at (636) 946-1622 or book online. Our team serves O'Fallon, St. Charles, St. Louis, and surrounding Missouri communities.




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