If you’ve noticed water stains on your ceiling near the chimney, damp spots creeping down your walls, or musty odors in your attic after a heavy rain, there’s a good chance your chimney flashing has failed. Here at B King Roofing & Exteriors, we’ve been providing expert chimney flashing repair in Saint Louis, MO, for homeowners and businesses across the metro area, and we know exactly how punishing our Midwest weather can be on roofing systems. From the historic brick homes of Soulard to the stately residences lining Lindbergh Boulevard in South County, we’ve seen firsthand how damaged flashing leads to serious interior water damage when left unchecked. As a family-owned, full-service roofing contractor, we don’t just patch problems; we deliver lasting, watertight solutions backed by the kind of accountability you only get from a team that stakes its reputation on every single project. Whether you’re dealing with a slow drip or storm damage that’s torn flashing loose, our crew is ready to restore your chimney’s moisture protection and give you peace of mind before the next St. Louis thunderstorm rolls through.
Stop Chimney Leaks with St. Louis’s Trusted Flashing Repair Experts
What is Chimney Flashing and Why Does It Leak?
Chimney flashing is the thin metal barrier installed where your chimney meets the roof surface. It consists of two primary components: step flashing, which tucks under each row of shingles along the chimney’s sides, and counter flashing, which is embedded into the mortar joints of the chimney itself. Together, they form a layered defense system that channels water away from this vulnerable junction. Over time, however, flashing corrosion, thermal expansion and contraction, and the freeze-thaw cycles we experience throughout a typical Saint Louis winter cause sealant to crack and metal to pull away. When flashing adhesion deteriorates, water finds its way beneath the roofing material, and that’s when the real damage begins.
Signs Your Chimney Flashing Needs Urgent Repair
- Water stains near your chimney on ceilings, walls, or in the attic
- Rust on flashing: visible orange or brown discoloration on metal surfaces
- Cracked, lifted, or missing sections of flashing around the chimney base
- Peeling paint or bubbling wallpaper near the chimney area
- Mold or mildew growth in your attic or upper floors
- Visible gaps between the chimney and the roofline after a recent storm
If any of these warning signs look familiar, don’t wait. A leaky chimney repair handled now can prevent thousands of dollars in chimney structural damage down the road.
Protecting Your St. Louis Home from Water Damage
Saint Louis averages over 40 inches of rainfall annually, and our spring storm season can deliver punishing wind-driven rain in a matter of minutes. That kind of water entry puts enormous pressure on compromised flashing. Effective water damage prevention starts with ensuring your chimney’s flashing system is intact and properly sealed. At B King Roofing & Exteriors, we combine industry-standard flashing methods with premium materials to create a watertight seal that holds up against everything our climate throws at it.
Our Professional Chimney Flashing Repair Process
Step 1: Roof and Chimney Inspection
Every project begins with a thorough chimney inspection and flashing inspection performed by one of our experienced technicians. We examine the entire chimney system, from the chimney crown down to the base flashing, to identify every source of water intrusion. Our chimney leak detection process includes checking the mortar joints, evaluating the condition of existing step and counter flashing, and assessing adjacent roofing materials for hidden damage.
Step 2: Custom Repair Solutions & Transparent Pricing
After our assessment, we provide you with a detailed, no-surprise estimate outlining exactly what needs to be done. Whether you need targeted flashing sealing, partial repair, or a complete flashing replacement, we explain every option so you can make an informed decision. We never upsell services you don’t need; that’s the family-owned accountability we’re known for.
Step 3: Expert Flashing Installation with Premium Materials
Our crews perform precise flashing installation using high-quality galvanized steel, copper, or aluminum materials suited to your specific roof and chimney configuration. We carefully integrate new step flashing beneath shingle courses, set counter flashing into clean mortar joints, and apply professional-grade sealant to ensure lasting chimney waterproofing. Every detail meets or exceeds industry-standard flashing specifications, so your repair stands the test of time.
Step 4: Storm Damage? We Handle Your Insurance Claim
As St. Louis’s storm damage restoration experts, we understand that many flashing failures are triggered by severe weather events. If your damaged flashing resulted from hail, high winds, or heavy storms, we provide full insurance claim assistance. Our team documents every detail, works directly with your adjuster, and ensures you receive the coverage you’re entitled to, so you can focus on your home, not paperwork.
The Benefits of Choosing B King Roofing & Exteriors
Prevent Costly Structural Repairs and Interior Damage
Addressing chimney flashing repair early prevents water from migrating into wall cavities, rotting roof decking, and compromising your home’s structural integrity. A timely repair is always more affordable than dealing with extensive chimney structural damage, mold remediation, or ceiling replacement. Our proactive approach to water entry prevention saves Saint Louis homeowners significant money over the life of their property.
Complete Exterior Solutions from a Full-Service Contractor
Unlike companies that only handle one piece of the puzzle, B King Roofing & Exteriors is a full-service general contractor for complete exterior renovations. If your chimney crown repair or masonry repair is needed alongside your flashing work, we handle it all under one roof, literally. From roof leak repair and roof flashing repair to siding, gutters, and beyond, you get a single point of contact and seamless project coordination.
Family-Owned Accountability for a Job Done Right
When you hire B King, you’re working with a family-owned business that treats every home like our own. We show up on time, communicate clearly throughout the project, and stand behind our workmanship. From minor flashing repairs to large-scale commercial installations, our name is on every job, and that drives us to deliver exceptional results each and every time.
Enhance Your Property’s Safety and Value
A properly sealed and maintained chimney system doesn’t just prevent leaks, it protects your home’s resale value and ensures the safety of everyone inside. Regular chimney maintenance and professional chimney moisture protection demonstrate to future buyers that the property has been well cared for, making your investment work harder for you.
Proudly Serving Saint Louis and Surrounding Areas
Chimney Flashing Repair Services in St. Louis City
From the charming brick homes of Tower Grove and Shaw to the historic architecture of Lafayette Square and the Central West End, we provide chimney professional services tailored to the unique needs of city properties. Older homes in these neighborhoods often feature original flashing that has long surpassed its functional lifespan, making expert chimney flashing repair in Saint Louis essential for preserving these treasured residences.
Your Local Experts in St. Louis County
We’re the local chimney repair team trusted throughout St. Louis County communities, including Kirkwood, Webster Groves, Chesterfield, Ballwin, and Creve Coeur. Whether your home is a mid-century ranch in Mehlville or a newer build in Wildwood, we have the expertise to address any flashing challenge you’re facing.
Responsive Service Throughout the Greater St. Louis Metro
Our service area extends across the greater metro, including St. Charles County, Jefferson County, and parts of the Illinois side. Wherever you are in the region, our team responds quickly, especially when storm damage demands urgent attention. Count on B King for fast, reliable chimney flashing repair when you need it most.
Frequently Asked Questions About Chimney Flashing
How much does chimney flashing repair cost in St. Louis?
The cost of chimney flashing repair varies depending on the extent of the damage, the type of flashing material, and whether additional chimney crown repair or masonry work is needed. We provide free, transparent estimates so you know exactly what to expect before any work begins.
How long does a typical flashing repair take?
Most flashing replacement and repair projects are completed in a single day. More extensive work involving masonry repair or full chimney restoration may take two to three days, depending on weather conditions and project scope.
Can my damaged flashing be repaired, or does it need to be replaced?
It depends on the condition. Minor gaps or cracks may be addressed with professional flashing sealing, while significant flashing corrosion, rust, or separation typically requires a complete replacement. Our thorough flashing inspection will determine the best course of action for your specific situation.
What materials do you use for chimney flashing?
We use premium-grade galvanized steel, copper, and aluminum for our chimney base flashing, step flashing, and counter flashing installations. Material selection depends on your roof type, chimney construction, and budget. We always recommend the best option to achieve a durable watertight seal that protects your home for years to come.
Get a Free, No-Obligation Estimate for Your Chimney Repair
Ready to put an end to that persistent leaky chimney? Contact us today by phone or through our website to request your free, no-obligation estimate. Our friendly team is standing by to answer your questions, walk you through the process, and get your repair scheduled at a time that works for you. We also offer a variety of services!