A Denver chimney sweep warranty should guarantee the work for at least 6 months, cover hidden creosote buildup, and include a written inspection report. If your agreement lacks these, you’re paying for a basic sweep, not expert craftsmanship. Always ask for a free estimate to compare warranties before hiring.
1. A chimney sweep warranty is a written guarantee that the service provider will stand behind their work for a set period, typically 30 to 90 days for basic sweeps, but 6 months to 1 year for premium white-glove cleanings. It should specify what’s covered (e.g., creosote removal, structural checks) and what’s excluded (e.g., pre-existing damage).
Denver’s dry climate and older homes mean creosote buildup happens faster than in wetter regions. A warranty that only covers ‘visible soot’ won’t protect you if hidden tarry deposits remain. At Walrus Chimney Inc., our white-glove warranty includes a full inspection report and a 6-month guarantee on all creosote removal, no fine print. If a company’s warranty is buried in a 10-page document or only covers ‘obvious’ issues, walk away. The Chimney Safety Institute of America (CSIA)|https://www.csia.org/)) recommends warranties should match the scope of work, not just the sweep itself.
Here’s what to watch for: - No mention of creosote levels: A warranty that says ‘we’ll re-clean if soot is found’ is meaningless if it doesn’t specify how much soot. Denver’s high-altitude wood burning creates Stage 2 creosote (tar-like) faster than Stage 1 (powdery). Our warranty guarantees removal down to the flue liner. - Exclusions for ‘pre-existing damage’: Every chimney has some wear. A reputable sweeper will note existing cracks or rust in the report and offer repair options, not hide behind a loophole. We include a free repair estimate with every warranty claim. - No inspection report: If they won’t give you a written record of what they found, they’re not accountable. Our reports include photos, measurements, and next-step recommendations, always provided on-site.
Pro tip: Ask for a copy of the warranty before the sweep. If they hesitate, that’s your answer. For homes in Englewood or Aurora, where older brick chimneys are common, our warranty also covers mortar joint repointing if cracks are found during the sweep. Check our Englewood service area for local warranty details. For details, see everything we handle.
2. The warranty should specify whether it covers ‘hidden’ creosote, or just what’s visible during the sweep. In Denver, hidden deposits are the #1 cause of chimney fires after a ‘clean’ sweep.
Hidden creosote is the silent killer of chimney warranties. A sweeper using a rotary brush might miss tarry deposits clinging to the top of the flue or behind bends. At Walrus Chimney Inc., we use high-definition cameras to inspect every inch of your chimney, including areas most companies skip. Our warranty covers re-sweeping for hidden creosote if found within 30 days of your initial sweep, no questions asked.
Here’s how to test if a warranty is legit: - Ask for proof of hidden creosote detection: If they can’t show you photos or a video of the flue interior, they’re not using proper tools. We provide a digital inspection report with every sweep. - Check for ‘as-found’ clauses: Some warranties say they’ll only re-clean if creosote is found after the warranty period. That’s a scam. Our warranty covers any hidden creosote discovered during a follow-up inspection within 6 months. - Look for ‘creosote stage’ guarantees: Stage 2 creosote (tar) is 10x harder to remove than Stage 1 (powder). If their warranty doesn’t mention stages, they’re not trained to handle Denver’s worst buildup. We guarantee removal of all stages, including stubborn tar.
Denver’s high-elevation wood burns hotter, creating more creosote faster. If you’ve had a sweep in the last year and still see black smoke when lighting fires, you’ve got hidden deposits. Learn the 7 signs your Denver chimney needs a pro sweep now. For details, see request a free estimate / contact us.
3. The service agreement should include a ‘workmanship guarantee’, meaning if the sweep causes damage (e.g., dislodging bricks, damaging the liner), they’ll fix it. Denver’s older homes have fragile masonry.
A chimney sweep warranty isn’t just about cleaning, it’s about protecting your home from damage. In Denver, where pre-1980s brick chimneys are common, even a ‘gentle’ sweep can loosen mortar or crack tiles if done poorly. Our white-glove warranty includes a $1,000 workmanship guarantee: if our crew damages your chimney during the sweep, we repair it at no cost.
Red flags in workmanship clauses: - No liability for ‘accidental damage’: If their agreement says ‘we’re not responsible for any harm caused,’ they’re not insured properly. We carry $2 million in liability insurance and certified technicians who’ve worked on Highlands Ranch’s luxury homes and Downtown Denver’s historic brick chimneys. - Vague language like ‘reasonable care’: ‘Reasonable care’ is a legal loophole. We guarantee ‘expert craftsmanship’, meaning our team follows NFPA 211 standards the National Fire Protection Association (NFPA)|https://www.nfpa.org/)) for every sweep. - No mention of flue liner protection: If you have a stainless steel liner (common in newer Denver homes), a sweeper using a wire brush can scratch it. We use soft-bristle brushes and inspect liners for damage, covered under our warranty.
Denver’s dry, windy winters also mean chimneys expand and contract. If a sweeper doesn’t account for this, they can crack the crown (top of the chimney). Our warranty covers crown repairs if damaged during service. See how we handle luxury home chimneys in Highlands Ranch. You can also review about our team and credentials.
4. The agreement must state whether the warranty is transferable if you sell your home. Denver’s real estate market means chimney history matters to buyers.
A chimney sweep warranty should transfer with your home, or at least provide proof of work for the next owner. In Denver, home inspections often flag chimneys without recent sweep records. Our warranties are transferable for up to 1 year after the sweep, and we provide a certificate of cleaning that buyers can show inspectors.
What to ask about transferability: - Is the warranty assignable? Some companies void warranties if the homeowner changes. Ours stays valid as long as the chimney is in the same location. - Do they provide a ‘certificate of compliance’? This document proves the chimney was swept to CSIA standards the Chimney Safety Institute of America (CSIA)|https://www.csia.org/)), critical for Centennial or Broomfield homes where HOAs require records. - What if the new owner needs repairs? Our warranty covers creosote-related issues for 6 months post-sale, even if the new owner wasn’t the one who hired us.
Denver’s real estate market moves fast, and chimney issues can kill a sale. If a sweeper won’t give you a transferable warranty, ask why. At Walrus Chimney Inc., we’ve helped dozens of Denver homeowners avoid last-minute chimney surprises during closings. Read how older Denver homes need extra warranty protection. See our full service area page.
5. The warranty should outline what happens if creosote buildup returns within the warranty period. Denver’s dry air speeds up regrowth.
Creosote doesn’t stay gone forever, especially in Denver’s low-humidity, high-altitude climate. If a sweeper guarantees ‘no creosote for a year’ without explaining how often you should burn wood, they’re setting you up for failure. Our warranty includes: - Free re-sweep if creosote returns within 6 months (proving you’ve followed our burning guidelines). - A ‘creosote regrowth plan’ tailored to your chimney type (e.g., Englewood’s brick chimneys vs. Arvada’s prefab liners). - Priority scheduling for warranty claims, no waiting lists.
Warning signs of a weak warranty: - ‘Creosote-free’ claims without burn restrictions: If they don’t tell you to burn only seasoned wood the EPA's Burn Wise program, they’re not protecting you. We provide a free burn guide with every sweep. - No follow-up inspection: Creosote regrows in layers. A one-time sweep won’t cut it. Our warranty includes a free annual inspection to catch early buildup. - Short ‘re-sweep windows’: If their warranty only covers re-sweeping if creosote is ‘thick enough to see,’ they’re not using professional tools. We detect Stage 1 creosote (powdery) with our HD cameras.
Denver’s winter wood-burning season means creosote builds up fast. If you’ve had a sweep and still see smoke in your home, you’ve got regrowth. See our month-by-month guide to Denver chimney care. Full details in Chimney Sweep in Englewood, CO page.
6. The agreement must specify whether the warranty covers ‘smoke spillage’ or ‘poor draft’ issues after the sweep. Denver’s windy conditions worsen these problems.
A chimney sweep warranty should fix the problems it creates. If a sweeper leaves your chimney drafty or causes smoke to spill into your home, that’s their responsibility. Our warranty covers: - Smoke spillage into the house (caused by improper cleaning or blockages). - Poor draft (if the sweep disrupts airflow). - Carbon monoxide leaks (if our work exposes gaps in the flue).
How to spot a warranty that won’t cover these: - No mention of ‘draft testing’: A real sweeper should measure your chimney’s draft before and after cleaning. We use anemometers to ensure proper airflow, covered under warranty. - Exclusions for ‘user error’: If their warranty says ‘we’re not liable if you burn wet wood,’ they’re not protecting you. We provide burning tips and moisture testing to prevent this. - No follow-up for ‘smoke issues’: If they won’t come back to adjust the chimney if smoke backs up, they’re not accountable. We offer free draft adjustments for 30 days post-sweep.
Denver’s windy spring and fall seasons can reverse chimney draft, causing smoke to spill. If you’ve had a sweep and now smoke fills your living room, you’ve got a warranty claim. Learn when to call for emergency chimney fixes.
7. The warranty should include a ‘satisfaction guarantee’, meaning if you’re unhappy with the work, they’ll make it right. No reputable Denver chimney sweep will refuse this.
A satisfaction guarantee isn’t just polite, it’s proof they stand by their work. At Walrus Chimney Inc., we offer a 100% satisfaction guarantee: if you’re not happy with the cleanliness, the inspection report, or the crew’s professionalism, we’ll re-sweep for free or refund your service fee.
What to look for in a satisfaction clause: - No ‘good faith’ disclaimers: If their agreement says ‘we’ll do our best,’ that’s not a guarantee. We say ‘we will fix it or refund you.’ - No time limits: Some warranties expire after 24 hours. Ours lasts 7 days, giving you time to test the chimney. - No ‘manager approval’ required: If they say ‘you need to get permission to use the warranty,’ they’re making it hard on purpose. We process claims on the spot.
Denver homeowners deserve better than ‘hope for the best’ warranties. If a company won’t offer a satisfaction guarantee, ask why. We’ve never had a warranty dispute because we deliver what we promise. Get your free estimate and see our warranty in action.
| Warranty Feature | What to Demand (White-Glove Standard) | What to Avoid (Red Flag) | Denver-Specific Risk |
|---|---|---|---|
| Duration | 6 months for creosote removal, 1 year for workmanship | 30 days or 'as long as the chimney holds' | Denver’s dry air speeds creosote regrowth |
| Hidden Creosote Coverage | Re-sweep if HD camera finds deposits post-warranty | 'Visible soot only' or 'no hidden creosote guarantee' | Stage 2 tar builds fast in high-altitude homes |
| Workmanship Guarantee | $1,000+ coverage for damage (e.g., cracked crown, liner scratches) | No liability or 'reasonable care' clauses | Older brick chimneys crack easily |
| Transferability | Transferable to new homeowner for 1 year | Void if homeowner changes | Denver’s fast real estate market requires this |
| Satisfaction Guarantee | 100% refund or re-sweep if unhappy | 'Good faith effort' or manager approval needed | No reputable sweeper refuses this |
| Draft/Smoke Issues | Free draft adjustment if smoke spills post-sweep | Excludes 'user error' or 'poor maintenance' | Denver’s wind reverses draft in spring/fall |
Frequently Asked Questions
My Denver chimney smells like gas after a sweep, is this normal, or does my warranty cover it?
This is not normal and your warranty should cover it. Gas-like smells after a sweep usually mean creosote or soot was disturbed, exposing hidden gaps or damaging the flue liner. At Walrus Chimney Inc., we inspect for gas leaks during every sweep and re-clean for free if this happens. If another company won’t address it, you’ve got a hidden warranty claim. Denver’s older brick chimneys (common in Capitol Hill) are prone to this, always demand a post-sweep draft test.
I found black soot on my ceiling after lighting a fire, does my chimney sweep warranty cover this?
Yes, if the sweep was done properly, this is a warranty violation. Soot on ceilings means creosote wasn’t fully removed or the draft is failing. Our warranty covers re-sweeping and draft adjustments for this. In Westminster or Lakewood, where homes have tightly sealed ducts, this happens more often, never ignore it. If your sweeper says ‘it’s your fireplace’s fault,’ they’re wrong. See how we clean fireplaces to prevent soot buildup.
My chimney sweep in Denver gave me a warranty, but it’s only for 30 days, is that enough?
No, 30 days is the bare minimum for a basic sweep. A white-glove warranty should last at least 6 months for creosote removal. Denver’s high-altitude wood burns hotter, creating creosote faster. If their warranty is short, they’re not confident in their work. We offer 6-month warranties because we stand by our cleaning. A 30-day warranty means they’re hiding something, likely hidden creosote or poor inspection methods.
I live in an older Denver home with a brick chimney, should my warranty cover mortar cracks found during the sweep?
Yes, if the cracks were caused by the sweep. Denver’s pre-1950s brick chimneys have fragile mortar, and even a ‘gentle’ sweep can loosen joints. Our warranty covers mortar repointing if our crew damages it. If another company says ‘cracks are normal,’ they’re not inspecting properly. We document all existing cracks in your report, so we can’t be blamed for pre-existing damage. See how we handle older chimneys in Arvada.