Chimney Sweep Checklist: What to Expect During Your Longmont Service

By Michael Johnson Chimney Inc Team · Updated July 21, 2026

A chimney sweep service involves a professional technician protecting your home, scrubbing the flue to remove hazardous soot, and performing a visual safety inspection to ensure your system is ready for use.

Step 1: How to Prepare Your Home Before We Arrive

Having a stranger work in your home can feel intrusive, but a little prep makes it smooth. The hardest part of the job for you is simply clearing the area. We need a clear path to the fireplace or stove, so please move any furniture, knick-knacks, or pet toys about six feet back from the hearth. If you have a gas starter, make sure it is turned off completely the night before. For those of us living in older Longmont neighborhoods, where hearths are often tucked into cozy corners, clearing a wide path helps us set up our equipment without bumping into your decor. You don't need to clean the ashes yourself—in fact, leaving a small bed of ash protects the floor of your firebox—but removing any large logs is helpful. If you are unsure about the condition of your chimney before we get there, our simple maintenance tasks guide can help you spot basic issues.

Step 2: Setting Up Cleanliness Protections

One of the biggest fears for first-time homeowners is that a chimney sweep will turn their living room into a dust bowl. We prioritize cleanliness as much as safety. Upon arrival, the first thing we do is lay down heavy-duty drop cloths and tarps around your hearth and extending into the room. We use a specialized HEPA vacuum system that creates negative pressure, essentially acting like a giant magnet to suck up any dust or soot before it escapes into your Longmont home air. This ensures that while we are scrubbing the inside of the flue, your living room remains spotless. We want you to feel comfortable watching the process if you are curious. You can learn more about our standards and how we protect your property by visiting our full list of services.

Step 3: The Mechanical Sweeping Process

A chimney sweep is the mechanical removal of soot, blockages, and creosote from the flue lining, smoke chamber, and firebox using high-powered brushes and vacuums. Once the room is prepped, our technician gets to work. We start at the top of the chimney (roof access) or from inside the firebox, depending on your home’s specific setup and roof safety conditions. Using rods and stiff bristle brushes sized exactly to your flue, we scrub the interior walls from top to bottom. This dislodges the sticky, tar-like byproducts that build up from burning wood, especially the pine and fir common in Colorado forests. The debris falls into the firebox or vacuum hose, where it is immediately contained. We don't just sweep; we also check for blockages like bird nests, which are common in the spring and summer months near areas/boulder-co/ and Longmont open spaces.

Step 4: The Safety Inspection and Checking the Flue

A chimney inspection is a formal assessment of the structural integrity and functionality of your venting system. After the sweeping is done and the dust settles, we perform a thorough visual check. We look for cracks in the flue tiles, damage to the mortar joints, or signs of water intrusion. In Longmont, our drastic temperature swings—from sunny days to freezing nights—can cause masonry to expand and contract, leading to cracks. We check the damper to ensure it opens and closes smoothly and verify that your chimney cap is in good repair to keep moisture and critters out. This step aligns with the standards set by ((the Chimney Safety Institute of America (CSIA)|https://www.csia.org/)), which advises that this evaluation happen with every sweeping to catch small problems before they become expensive repairs. For a deeper dive into what level of inspection you might need, read our Chimney Sweeping vs. Chimney Inspection comparison.

Step 5: The Final Walkthrough and Documentation

Once the work is complete, we pack up our equipment and remove the tarps, leaving your hearth area as clean (or cleaner) than we found it. We will then walk you through what we found. This is your chance to ask questions. We will show you photos of the interior of your chimney if we used a scan camera, pointing out any areas of concern like deteriorating bricks or missing mortar. We provide a written report detailing the condition of your chimney and any recommendations for future maintenance. This documentation is great for your records and provides peace of mind. ((the National Fire Protection Association (NFPA)|https://www.nfpa.org/)) recommends annual inspections, so keeping this report helps you track your system's health year over year. If repairs are needed, you can request a free estimate for the work immediately.

Step 6: Discussing Local Longmont Climate Factors

Living on the Front Range means dealing with specific environmental factors that affect your chimney. During the walkthrough, we might talk about how our dry, windy climate impacts your masonry. Wind-driven rain can batter chimneys on exposed lots in areas like areas/erie-co/ or areas/lafayette-co/, wearing down the mortar. We often advise homeowners on the benefits of waterproofing seals specifically designed for masonry, which allow the chimney to breathe while repelling water. We might also discuss your burning habits if we notice excessive creosote buildup, suggesting dryer wood or hotter fires to improve efficiency. This tailored advice ensures your system can handle the specific demands of the Colorado winter. If you are new to maintenance, check out our guide on DIY tips & maintenance guides for things you can do between visits.

Frequently Asked Questions