A quick, safe Bloomington chimney self-inspection can catch issues before winter. Follow these steps to spot problems early and know exactly when to call a pro—before small issues become costly repairs.
Step 1: Pick the Right Time for Your Bloomington Chimney Check
Before Bloomington’s first freeze, schedule a clear, dry day for your inspection. Avoid windy or rainy weather—wet bricks and soot make surfaces slippery and visibility poor. Start at ground level and work your way up. Use a sturdy ladder on level ground, and never stand on the roof if it’s wet, mossy, or steep. Wear non-slip shoes and gloves. If your chimney is over two stories tall or near power lines, stop here and call a pro. [[Learn more about safe ladder use|/tips/chimney-safety-bloomington/] Learn more about our full list of services.
Step 2: Inspect the Exterior — Brick, Mortar, and Cap
Look for cracked or missing bricks, especially on the south and west sides, which take the brunt of Bloomington’s summer sun and winter winds. Check the mortar joints for gaps—these can let water and pests in. Inspect the chimney cap: it should be secure, intact, and free of debris. If the cap is missing or damaged, water can enter and freeze, cracking the flue. If you spot large cracks, leaning, or missing bricks, stop and call a pro. [[See what to look for in a licensed sweep|/blog/what-to-look-for-in-licensed-chimney-sweep-edina/] See request a free estimate / contact us.
Step 3: Check the Flashing and Seal Around the Base
The flashing is the metal strip where the chimney meets the roof. It should lie flat with no gaps or rust spots. Use a flashlight to inspect the sealant—if it’s cracked or missing, water can seep into your attic. Bloomington’s freeze-thaw cycles make this a common failure point. If the flashing is bent, rusted, or pulling away, stop and call a pro. [[Learn how to prepare for your chimney appointment|/tips/bloomington-chimney-appointment-prep/] Explore about our team and credentials.
Step 4: Look Up the Flue from the Firebox
Use a bright flashlight and a mirror to peek up the flue from inside your fireplace. Look for heavy creosote buildup (black, tarry, or shiny deposits), cracks in the flue liner, or obstructions like bird nests or leaves. If you see more than 1/8 inch of creosote, or any cracks or gaps, stop and call a pro. Never use a fireplace with a damaged flue—it’s a fire and carbon monoxide hazard. [[Understand the difference between sweeping and inspection|/compare/chimney-sweeping-vs-inspection/] For details, see the areas we serve.
Step 5: Watch for Warning Signs Inside Your Home
Bloomington homeowners often notice chimney issues indoors first. Look for white, chalky stains on walls near the fireplace (efflorescence), a strong campfire smell even when not in use, or soot falling into the firebox. These signal water damage or a blocked flue. If you smell gas or see smoke backing up into the room, evacuate and call 911, then contact a pro immediately. [[See more common chimney problems in Bloomington|/blog/common-chimney-problems-bloomington/]
What You Should NEVER DIY — and Why
Never attempt to clean creosote yourself—it’s toxic and can ignite during cleaning. Don’t climb onto a wet or icy roof, or use a ladder on uneven ground. Avoid using DIY sealants or waterproofing products unless certified for chimneys—many void warranties or trap moisture inside bricks. Never repair mortar or bricks with regular caulk or concrete. These jobs require specialized tools, training, and permits in Bloomington. [[Learn about chimney waterproofing in Bloomington|/blog/chimney-waterproofing-bloomington/]
When to Call Desert Tan Chimney Co.
If your inspection reveals cracks, leaning, heavy creosote, missing cap, damaged flashing, or signs of water damage, it’s time to call a pro. Bloomington’s seasonal freeze-thaw cycles can turn small issues into major repairs fast. Desert Tan Chimney Co. offers free estimates and licensed, insured service across the Twin Cities. We serve Bloomington, Edina, Richfield, St. Louis Park, and more. [[Request your free estimate today|/contact/] [[See our full service list|/services/] [[Check if we serve your area|/areas/bloomington/]
Frequently Asked Questions
How can I tell if my Bloomington chimney cap is damaged without climbing on the roof?
Use binoculars from the ground to check for rust, cracks, or missing mesh on the cap. If it’s tilted or you see daylight through gaps, it’s compromised. A damaged cap lets water, leaves, and animals into your flue—common in Bloomington’s windy fall season.
What’s the safest way to inspect my chimney after a recent Minneapolis windstorm?
Wait 24 hours for debris to settle. Use a sturdy ladder on level ground and wear gloves and non-slip shoes. Check for fallen bricks, bent flashing, or debris in the flue. If you see anything loose or damaged, stop and call a pro—wind can dislodge unstable masonry fast.
Can I waterproof my Bloomington chimney myself using a product from the hardware store?
No. Most hardware store sealants aren’t designed for chimneys and can trap moisture inside bricks, causing them to crack. Bloomington’s freeze-thaw cycles make this especially risky. Use only products labeled for chimneys and applied by a licensed sweep to avoid voiding warranties.