About Gannon Chimney Services
A family-owned business built on safety, integrity, and a passion for protecting Duvall-area homes.
Our Story
Serving Duvall & King County Since Day One
Gannon Chimney Services was founded with a single mission: to provide homeowners in Duvall and the surrounding King County communities with honest, reliable chimney and fireplace care. As locals ourselves, we understand the importance of a properly functioning chimney — especially during the long Pacific Northwest winters.
Our team of CSIA-certified technicians brings technical excellence and genuine care to every job. Whether you need a routine annual sweep, a real estate inspection, or emergency repair, we show up on time, fully equipped, and ready to deliver results you can count on.
We're fully licensed, bonded, and insured, and we stand behind every service we perform with our satisfaction guarantee.
📞 Call Us Today
By the Numbers
Why Homeowners Choose Us
500+
Chimneys Cleaned & Inspected
24/7
Emergency Service Availability
5★
Average Customer Rating
Our People
Meet the Team
Our certified technicians are background-checked, uniformed, and passionate about chimney safety.
Patrick Gannon
Founder & Lead Sweep
Service Technicians
CSIA Certified Sweeps
Masonry Specialists
Repair & Restoration
Our Chimney Services
Comprehensive chimney and fireplace solutions for residential and commercial properties in Duvall, WA and King County.
Full Service Menu
Everything Your Chimney Needs
From scheduled maintenance to urgent repairs, our certified team handles every aspect of chimney care.
Chimney Sweeping & Cleaning
Complete removal of creosote buildup, soot, ash, and animal nesting debris using professional rotary and vacuum equipment. Reduces fire risk and optimizes draft.
Recommended Annually
Chimney Inspections
NFPA 211 Level I, II & III inspections with written reports. Essential for real estate transactions, insurance requirements, and peace of mind.
NFPA 211 Compliant
Masonry Repairs & Tuckpointing
Restore deteriorating mortar joints, rebuild spalled bricks, repair crowns, and address structural cracks before they become costly failures.
Licensed Masons
Chimney Liner Installation
Install or replace flexible stainless steel liners for wood, gas, and oil appliances. Improves safety, efficiency, and meets current building codes.
Stainless Steel
Chimney Cap & Crown Repair
Custom-fitted stainless steel caps prevent rain, animals, and debris from entering the flue. Cracked crowns are rebuilt with high-heat sealant.
Weather Protection
Fireplace & Insert Services
Gas and wood insert installation, damper replacement, smoke chamber parging, glass door replacement, and general fireplace tune-ups.
Gas & Wood
Waterproofing & Flashing
Penetrating sealant application to masonry surfaces and professional chimney flashing repair or replacement to eliminate water intrusion.
10-Year Protection
Emergency Chimney Services
24/7 response for chimney fires, carbon monoxide concerns, blocked flues, and storm damage. We're on call around the clock, every day of the year.
24/7 Available
Not Sure What Service You Need?
Call or contact us and our experts will walk you through the right solution for your chimney system.
Find Us in Duvall, WA
14701 Main St NE, Duvall, WA 98019, USA
Connect With Us
Follow Gannon Chimney Services on social media for tips, updates, promotions, and community news.
Find Us Online
Stay Connected
We love connecting with our community. Follow us for seasonal chimney tips, before & after photos, and exclusive offers.
Customer Love
What Our Customers Say
★★★★★
Gannon's team was incredibly professional. They arrived on time, cleaned everything spotlessly, and gave me a thorough written report. Highly recommend!
Sarah M. – Duvall, WA
★★★★★
Called them for an emergency at 9 PM and they showed up within the hour. Honestly saved us from a potential chimney fire. Lifesavers!
Tom R. – Carnation, WA
★★★★★
Best chimney company I've ever used. Fair pricing, honest assessments, and the workmanship on our masonry repair is outstanding. Our go-to for life.
Linda K. – Monroe, WA
