Upgrading your Denver chimney starts with a clear inspection and knowing what’s safe to DIY. Learn the warning signs that mean stop and call a pro, and how to avoid costly mistakes before you begin.
Start with a simple Denver chimney inspection you can do yourself
Before planning any upgrade, grab a flashlight and check your chimney from the ground. Look for missing or cracked bricks, leaning sections, or white staining (efflorescence) on the exterior walls—common in Denver’s freeze-thaw climate. Inspect the flashing around the roof penetration for gaps or rust. Also, check the chimney cap for damage or missing mesh, which keeps critters and rain out. If you spot any of these, note them for your pro. For a deeper look, use a phone camera on a selfie stick to peek inside from the firebox—never climb on the roof yourself. If you’re unsure, schedule a Level 1 inspection with a pro from Anthony Brown Chimney Inc.
What Denver homeowners can safely DIY before upgrading
You can clean the firebox and ash pan regularly to reduce buildup and improve airflow. Use a metal shovel and shop vacuum (with a HEPA filter) to remove cold ash and debris. Check and replace damaged fireplace doors or screens if you’re comfortable with basic tools. Also, clear leaves and debris from the chimney cap and crown using a broom or leaf blower from the roof edge—stay on the ladder, not the roof. Avoid using chemical cleaners or power tools near the flue. If you notice persistent soot or a strong odor, it’s time to call a pro. For a full list of safe maintenance tasks, visit our DIY tips & maintenance guides.
Warning signs that mean stop and call a professional now
If you see smoke backing up into the room when burning a fire, that’s a red flag for blockages or a failing chimney. Cracked or crumbling mortar joints, especially after Denver’s winter freeze cycles, signal structural weakness. A chimney that leans more than a few inches or has visible gaps at the roofline needs immediate attention. Also, if your chimney cap is missing or damaged, water can enter and cause hidden rot. Never ignore a carbon monoxide alarm near the fireplace—it could mean a cracked flue or improper drafting. These issues are dangerous and often require permits and specialized tools. Call a pro like Anthony Brown Chimney Inc for a full assessment.
What upgrades actually add value in Denver’s climate
In Denver’s dry air and temperature swings, upgrading to a stainless steel liner can improve draft and reduce creosote buildup. A new chimney cap with mesh keeps out squirrels and rain, which is critical in neighborhoods like Highlands or Capitol Hill. Repointing mortar joints with high-temperature mortar helps prevent water damage from freeze-thaw cycles. Consider a top-sealing damper to reduce heat loss and keep pests out. Avoid cosmetic changes like painting the chimney—it can trap moisture. For a cost breakdown of these upgrades, check our Chimney Sweep cost / pricing guide.
What you should NEVER DIY on your Denver chimney
Never attempt to reline the flue yourself—improper liner installation can cause deadly carbon monoxide leaks. Avoid sealing cracks with regular caulk or mortar; chimney-specific products and techniques are required. Do not climb onto the roof to inspect or repair the chimney cap or crown—Denver’s altitude and sudden weather changes increase fall risks. Never use a chimney sweep brush without knowing the flue type (clay tile, metal, or masonry)—the wrong brush can damage the liner. These tasks require certification, insurance, and often permits. Leave them to licensed pros like those at Anthony Brown Chimney Inc.
When to Call Anthony Brown Chimney Inc
If your Denver chimney shows signs of structural damage, persistent drafting issues, or if you’re unsure about upgrades, it’s time to call a pro. We offer free estimates and transparent pricing, so you won’t overpay for unnecessary work. Our team is licensed, insured, and familiar with Denver’s unique climate challenges. Whether you’re in Englewood, Golden, or Arvada, we provide detailed inspections and honest recommendations. Don’t gamble with safety—contact us today to schedule your appointment. Visit our contact page to get started.
Frequently Asked Questions
My chimney in Cherry Creek has white stains on the bricks—is that serious?
Those white stains are efflorescence, caused by water evaporating and leaving mineral deposits. While not immediately dangerous, they signal moisture intrusion, which can weaken mortar and bricks over time. In Denver’s freeze-thaw climate, this can lead to cracks. Have a pro inspect the chimney and recommend repairs like repointing or a new cap to prevent further damage.
Why does my fireplace in LoHi smell like campfire even when it’s not in use?
That campfire smell is likely creosote buildup in the flue, which absorbs odors and releases them when humidity rises. Denver’s dry air can trap these odors, making them more noticeable. A professional chimney sweep can remove the creosote and install a top-sealing damper to reduce draft issues and odors. Schedule a cleaning before winter to keep your home fresh.
Can I just cap my chimney in Stapleton to keep out rain and pests?
Capping your chimney is a great start, but a proper cap must include mesh to block pests and allow smoke to escape safely. A poorly installed cap can trap gases or cause drafting problems. In Denver, where squirrels and birds are common, a professional installation ensures the cap fits snugly and meets local codes. Don’t DIY this—call a pro to avoid costly mistakes.