How Often Should You Service Your Chimney? A Denver Homeowner's Schedule

By Ruby Chimney Inc · Updated October 18, 2026

In Denver, service your chimney twice yearly, once before fall fires and again after winter use. Wood-burning chimneys need sweeps every 45 days of use; gas chimneys annually. Never skip inspections if you see smoke, soot, or rust. For anything beyond basic checks, call Ruby Chimney Inc, safety first.

Denver Chimney Work: What You Can Handle vs. When to Call a Pro

Denver’s thin air and frequent wood-burning fires mean your chimney works harder than most. Here’s the minimum schedule for homeowners: - Wood-burning chimneys: Sweep every 45 days of use (or at least twice yearly). Denver’s dry climate accelerates creosote buildup, waiting longer risks dangerous fires. - Gas chimneys: Once yearly, but check for rust or corrosion monthly. Gas chimneys still need inspections for liner damage or blockages. - After a long burn season: If you burned more than 10 cords last winter, schedule an extra sweep to stay safe. Never assume last year’s clean chimney is still safe. Safe DIY checks: Use a flashlight to inspect the damper and chimney cap for cracks. Look for white powdery residue (sulfur buildup) or rust spots on the cap. If you see glossy black tar (Stage 2 creosote), stop DIYing and call Ruby Chimney Inc. Learn more about creosote stages here. What you should NEVER DIY: Climbing on the roof, removing creosote, or repairing cracks in the flue. These jobs require licensed professionals. Denver’s building codes mandate proper repairs to avoid carbon monoxide leaks or structural failures. See our full list of services to understand what’s beyond DIY scope.

How to Check Your Chimney Yourself: A Step-by-Step Guide for Denver Homeowners

Before calling a chimney sweep near you, do these five safe checks from the ground or a sturdy ladder (never the roof): 1. Damper check: Open the damper and flash a light up the flue to spot blockages. If you see more than 1/8-inch of creosote (black, tar-like buildup), schedule a professional sweep. Our Lakewood team sees this in 60% of homes after one winter. 2. Chimney cap inspection: Look for bent tabs, missing screws, or rust holes. A damaged cap lets rain, debris, and animals in, costing $200–$500 to replace. See why caps matter. 3. Soot on the fireplace: Light dusting is normal, but thick black layers mean poor draft or creosote buildup. Wipe with a damp cloth; if it smears, call Ruby Chimney Inc. 4. Smell test: Light a fire and sniff outside. Rotten egg (sulfur) or chemical odors mean gas leaks or flue corrosion, never ignore this. Gas fireplace issues? Compare wood vs. gas here. 5. Masonry cracks: Use a screwdriver to probe cracks wider than 1/8-inch. If mortar crumbles or bricks are loose, stop DIYing. Masonry repairs require a pro to meet Denver’s International Residential Code standards. See repair vs. replace costs. Tool kit: A chimney inspection mirror ($20), flashlight, and gloves are all you need. Grab our DIY checklist before your next sweep.

When Your Chimney Needs a Pro: Stop DIYing If You See These Signs

If you see any of these, stop using your fireplace and call Ruby Chimney Inc immediately: - Smoke spilling into the room: Means a blocked flue or failed damper. DIY fixes (like poking the flue) can worsen blockages and create deadly backdrafts. - Animals nesting: Birds, squirrels, or raccoons in the chimney block airflow and create fire hazards. Never try to clear these yourself, carbon monoxide poisoning is a real danger. Learn how to spot animal damage. - Rust or corrosion: Orange-brown streaks on the flue or cap mean acidic creosote is eating your chimney. This weakens the structure and can collapse the liner, a $3,000–$6,000 repair. See how liners fail in Denver’s climate. - Cracked or missing flue tiles: If you see exposed mortar or gaps, your chimney is one strong wind away from a chimney fire. Denver’s Highlands Ranch homes see this after just three winters due to freeze-thaw cycles. - High bills or poor draft: If fires take longer to light or smoke rolls back, your chimney’s draft is failing. This isn’t a DIY fix, improper drafts cause 25% of chimney fires. Book a draft test with us before your next fire season.

When to Call Ruby Chimney Inc: Denver’s No-Nonsense Chimney Experts

You should call us if: - Your last sweep was more than a year ago (or 45 days for wood burners). - You’re buying a home in Arvada, Wheat Ridge, or Castle Rock, we offer pre-purchase inspections to avoid costly surprises. See our service areas. - Your chimney is older than 20 years. Denver’s older homes (like those in Golden or Englewood) often have hidden damage from decades of use. - You’re switching from gas to wood, this changes your chimney’s needs entirely. Compare fireplace types here. - You’ve had multiple DIY fixes that didn’t work (e.g., caulking cracks, cleaning creosote yourself). Why Ruby Chimney Inc? - We’re licensed, insured, and CSIA-certified, unlike fly-by-night crews. See what ‘licensed & insured’ really means. - No upselling: We’ll tell you if your chimney is safe or needs work, no matter the cost. Check our pricing transparency. - Denver locals since 2011: We know your neighborhood’s risks, whether it’s Parker’s high winds or Centennial’s humidity. Read about our team. Ready for a sweep? Request a free estimate today, we’ll schedule around your busy Denver life. Fall is the busiest season, so book now to avoid delays. See our fall prep checklist.

Myth-Busting: Common Denver Chimney Mistakes Homeowners Make

Denver homeowners often fall for these dangerous myths: - ‘My chimney looks fine, no need to sweep.’ Creosote is invisible until it’s a fire hazard. 80% of chimney fires start with undetected buildup. Learn creosote stages. - ‘A little smoke in the room is normal.’ It’s not. Smoke means blocked airflow or a failed damper, both are carbon monoxide risks. See our safety guide. - ‘I can clean creosote with a wire brush.’ Never do this. Scraping creosote ignites fires and damages flue tiles. Professionals use rotary brushes and vacuums, safely. - ‘Old chimneys don’t need inspections.’ Wrong. Denver’s 1950s-era homes (like in Highlands Ranch) often have hidden cracks from poor original construction. See why inspections matter. - ‘I’ll just use my fireplace less.’ Bad idea. Poor airflow worsens creosote buildup faster. If your chimney is dirty, use it less until it’s cleaned, but never skip sweeps. Pro tip: If you’re unsure, call Ruby Chimney Inc. We’ll inspect, advise, and only do what’s needed, no guesswork. See how we compare to other sweeps.

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