How to Find a Reliable Chimney Sweep

By Robert (Bob) Anderson, 28 years of experience · November 8, 2026 · 7 min read

The answer to how to find a reliable chimney sweep is to check the inspection scope, ask how findings will be documented, and confirm the sweep can explain recommended work before it begins. For a Denver appointment, compare your needs with our chimney sweep service and book by phone or through our contact page.

Need help now? (720) 780-8924

What a Reliable Chimney Sweep Checks Beyond the Firebox

A sweep should assess the full path that smoke travels, not just remove ash from the visible fireplace. The CSIA says a complete sweeping covers the chimney flue and smoke chamber as well as the firebox. Ask what parts of your system are included and whether the sweep will point out deposits or damage found during the work.

A typical sweep cleans the firebox, smoke shelf and flue, then vacuums debris, according to HomeGuide (2026). The scope can vary with the fireplace and chimney, so ask whether the proposed work addresses your actual appliance and flue rather than assuming every visit is identical.

Look for a clear distinction between cleaning and inspection. NFPA 211 calls for chimneys, fireplaces and vents to be inspected at least once a year for soundness, deposits and correct clearances; cleaning or repairs follow when needed, as explained in the CSIA Homeowner Resources. A sweep should be able to tell you what was checked and what needs attention.

Which Chimney Visit Fits the Problem You Have

Match the appointment to what has changed or what you have noticed. These distinctions help you ask for the right kind of visit instead of treating every concern as a routine sweep.

Seven Checks to Make Before Booking a Chimney Sweep

Use these questions to compare a sweep’s proposed work and understand what will happen at your home. You do not need to climb onto the roof or take apart the fireplace to make these checks.

1. Describe the appliance and concern — Tell the sweep whether you have a wood fireplace, stove or another appliance, and describe smoke, odors, debris or a recent event. Check that the person understands the problem you are booking to address.
2. Ask what the visit includes — Ask whether the firebox, smoke shelf, smoke chamber and flue are part of the proposed cleaning. Check that the scope matches the chimney rather than being limited to visible ash.
3. Ask how the chimney will be inspected — For a routine annual check with no changes, Level 1 is the usual inspection. After a fire, before a sale, or when relining, ask whether Level 2 is needed and whether its required video scan is included.
4. Request clear findings — Ask how the sweep will show or record deposits, damage and recommended repairs. Check that each recommendation identifies the affected part, such as the flue, smoke chamber or masonry, rather than relying on a vague warning.
5. Confirm how extra work is handled — Before work begins, ask what is included in the booked service and how you will approve additional work. Check that cleaning, inspection findings and any repair proposal are explained separately.
6. Ask about relevant experience and coverage — Ask who will perform the work and what experience they have with chimneys like yours. We are licensed and insured; owner Robert (Bob) Anderson has 28 years of experience with chimneys.
7. Confirm the appointment details — Ask what visit length to plan for and what access the sweep needs. Check the appointment date and the service being booked so there is no confusion when the technician arrives.

Need help now? (720) 780-8924

How to Read a Chimney Sweep’s Findings

A useful report or explanation connects an observation to a specific part of the chimney and states what action is recommended. Ask the sweep to show you the relevant area or explain why it needs attention; you should be able to tell a cleaning need from a repair concern.

• Creosote buildup — Creosote can look flaky, sticky and tar-like, or shiny and hardened. CSIA notes that a masonry fireplace chimney should be swept at 1/8 inch of sooty buildup, or sooner if any glaze is present; ask what was observed in your flue.
• Masonry or flue damage — Ask which component is damaged and whether the concern affects the flue, chimney structure or clearances. A repair recommendation should identify the problem area rather than treating every deposit or mark as the same issue.
• A proposed video inspection — A camera inspection is relevant when a Level 2 inspection is called for, including after a fire, before a sale or when relining. Check that the stated reason matches one of those conditions or another specific change to the system.

What Denver Homeowners Should Check Before Burning

Denver-area burning restrictions can affect when you use a wood-burning fireplace, so keep maintenance and permission to burn as separate questions. From November through March, indoor burning is restricted on Action Days in Denver and several nearby counties, according to the Colorado Department of Public Health and Environment (CDPHE). Denver also prohibits operating a solid-fuel-fired device on a high-pollution day unless it is approved by Denver or the state health department.

Check the current air-quality forecast before lighting a fire; the state posts the Denver-area forecast daily at 4 PM. CDPHE lists exemptions for certain devices and circumstances, so do not assume that a clean chimney or a recent sweep makes burning permissible. Review the Colorado indoor-burning guidance for current restrictions and exemptions.

How Long a Chimney Sweep Visit Usually Takes

HomeGuide (2026) says a typical sweep takes about 1 to 2 hours. A chimney that has not been cleaned in over a year may take about twice as long, so mention the last cleaning date when arranging the visit and ask how much time to set aside.

Before the appointment, make sure the sweep can reach the fireplace and any relevant appliance controls or access points. Tell them about a recent chimney fire, renovation, appliance change, or change in how smoke drafts. Those details can affect whether the visit needs to include more than routine cleaning.

A professional sweep should use suitable equipment to remove debris rather than relying on chemical products alone. CSIA explains that chemical creosote products do not replace mechanical sweeping or annual inspection, because debris can remain on the smoke shelf, baffle and offsets.

Need help now? (720) 780-8924

Warning Signs That Mean You Should Stop Using the Fireplace

Do not keep using a fireplace that is sending smoke into the room or showing signs of a chimney problem. Have a sweep inspect it before you burn again, especially if you notice a sudden change after a fire or storm.

• Smoke spills into the room — Smoke entering the room when a fire is lit can point to a draft or blockage problem. Stop burning and arrange an inspection rather than trying to clear the flue yourself.
• Debris falls into the firebox — Falling creosote or masonry pieces can indicate deposits or deterioration above the firebox. Avoid lighting another fire until a sweep has checked the source.
• You hear or see signs of an animal — A nest or animal in the flue can obstruct the smoke path. Do not reach into the chimney; tell the sweep what you noticed so the obstruction can be assessed safely.

Booking a Chimney Sweep in Denver Before Fall

Fall is the busy season for chimney service, so arranging an appointment within the next few days gives you time to address cleaning or inspection findings before regular fires begin. Denver Chimney Sweep Pros serves Denver and towns within 60 miles, with same-day service and a free in-home inspection.

Our chimney sweep starts at $59. For a broader explanation of typical costs and what changes the scope, see how much a chimney sweep costs in Colorado. We are open 24 hours a day, seven days a week; call (720) 780-8924 or contact us to book.

Frequently asked questions