Damper Repair in Colorado
Professional damper repair across Denver, Fort Collins, and Colorado Springs. Family-owned since 1998 · Licensed & insured · Open 24/7.
About This Service
Your damper is the valve between your living room and the sky — and when it rusts, warps, or jams, you either can't burn safely (stuck closed) or you're heating the neighborhood all winter (stuck open). Damper repair frees, adjusts, and re-seals the mechanism so it does both of its jobs again.
We repair traditional throat dampers — de-rusting and lubricating mechanisms, straightening or replacing warped plates, renewing seals — and we'll tell you honestly when a damper is beyond repair and a top-sealing replacement makes better sense.
Signs You Need Damper Repair
- The damper handle is stuck, grinding, or disconnected
- Cold air pours down the flue with the damper 'closed'
- The plate is visibly warped, rusted through, or off its track
- Fires are hard to control regardless of how you set it
What a Damper Visit Includes
Mechanism, plate, and frame assessed; seized parts freed and cleaned.
Repairable dampers are adjusted, lubricated, and re-sealed.
Replacement recommendations come with a demonstration of why.
Every damper leaves either working properly or honestly diagnosed.
Why It Matters for Safety
A damper that won't close wastes heat; one that won't open fills rooms with smoke — and either failure invites improvised workarounds that create real hazards. A properly working damper is basic operational safety for any wood-burning system.
Maintenance Tips From Our Technicians
- Cycle the damper fully once a month, all year.
- A stiffening damper wants cleaning now, not force later.
- Top-sealing damper gaskets: inspect at each annual service.
- Never operate a fireplace with a damper that can't be verified open.
Why Homeowners Choose Donovan Chimney & Fireplace
What makes Donovan Chimney & Fireplace different is boring and rare: we show up when scheduled, we explain findings in plain language with photos, and our pricing is set before the work starts. Twenty-five-plus years on the Front Range, fully licensed and insured, open around the clock.
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Frequently Asked Questions
How much heat does a leaky damper actually lose?
A throat damper that doesn't seal is close to a permanently cracked window — metal-on-metal dampers leak even when new, and rusted ones far worse. It's often the single biggest fixable draft loss in an older home.
Can a rusted damper be freed without replacement?
Frequently yes — many 'broken' dampers are seized by rust and debris and respond to cleaning, freeing, and adjustment. If the plate or frame is genuinely deteriorated, we'll show you and talk replacement options.
How soon can you come out?
Routine appointments are usually available within the week, and our 24/7 emergency line handles the situations that can't wait. October and November book fastest — spring and summer scheduling is easiest.
Request a Free Estimate
We're open 24/7. Fill this out and we'll get right back to you — or call 720-310-3798.
Book Damper Repair Today
We serve Denver, Fort Collins, Colorado Springs, and every community around them — see the full service area list.
Emergencies don't keep business hours and neither do we: our phone answers 24 hours a day, 7 days a week.