Michael Johnson Chimney Inc provides chimney sweep services in Longmont, including full chimney sweeping & cleaning, level 1, 2 & 3 chimney inspections, chimney cap installation & repair, and more. Every job is handled by licensed, insured technicians with upfront written pricing, and backed by a workmanship guarantee — free estimates for all of Longmont and nearby areas.
When was the last time your chimney got a thorough cleaning? Over time, wood-burning fires leave behind creosote—a dark, tar-like substance that clings to flue walls and ignites at high temperatures. In Longmont’s dry climate, creosote can accumulate faster than you’d expect, especially if you’ve recently moved into a home with an older system. Our certified sweeps use industry-grade brushes and vacuums to remove every trace, restoring airflow and reducing fire hazards. We also inspect for cracks or gaps that could let embers escape. You’ll get a detailed report and a fireplace that burns cleaner and hotter—no more smoky backdrafts or stubborn soot stains on your hearth. Service includes a free estimate and a 30-day follow-up call to ensure everything’s running smoothly.
Request this service →Not all chimney inspections are the same—and skipping the right level can leave you exposed to hidden dangers. In Longmont, where homes range from historic brick to modern builds, we tailor our inspections to your system’s needs. Level 1 covers visible areas and basic function checks, perfect for routine maintenance. Level 2 adds a video camera to spot cracks or obstructions in hard-to-reach spots, required after major renovations or if you’ve had a chimney fire. Level 3 is a full structural exam, often needed if damage is suspected. We document findings with photos and provide a written report, so you can see exactly what’s happening inside your chimney. No surprises—just peace of mind.
Request this service →A missing or damaged chimney cap is like leaving your front door wide open—literally. In Longmont, wind-driven rain and summer hail can crack masonry, while squirrels and birds often nest in unprotected flues. Our stainless steel caps block rain, snow, and critters while improving draft efficiency. We custom-fit caps to your flue’s exact dimensions, ensuring a snug seal that won’t rattle in Colorado’s gusty winters. Installation takes under an hour, and we include a free inspection to check for existing damage. Protect your investment and avoid costly repairs down the road.
Request this service →Longmont’s wet springs and freezing winters take a toll on brick and mortar. Water seeps into tiny cracks, freezes, and expands, causing bricks to spall and mortar to crumble—often without visible signs until it’s too late. Our waterproofing treatment penetrates deep to repel water while allowing the masonry to breathe. We also repair cracked crowns, repoint mortar joints, and replace damaged bricks to restore structural integrity. Done right, these fixes can add decades to your chimney’s life. We offer a 5-year warranty on materials and workmanship, so you’re covered long after the job’s done.
Request this service →If your fireplace feels more like a drafty hole than a heat source, it’s time for an upgrade. We install EPA-certified wood stoves and gas inserts that burn cleaner, heat faster, and reduce your heating bills. Our team handles permits, inspections, and local Longmont code requirements, so you don’t have to. We’ll help you choose the right size and style for your space, then install it with precision to maximize safety and performance. Plus, many models qualify for local rebates—ask us about financing options to make the switch affordable.
Request this service →The chimney crown is your first line of defense against Longmont’s weather, but it’s often overlooked until cracks appear. A damaged crown lets water pool on the flue tile, leading to erosion, rusted liners, and even collapsed masonry. We rebuild crowns with reinforced concrete or custom-molded crowns that slope away from the flue, ensuring proper drainage. Our repairs include a full inspection to check for underlying issues, and we offer same-day estimates for urgent cases. Don’t wait for spring—address crown damage now to avoid winter headaches.
Request this service →Fast response, upfront pricing, and workmanship guaranteed. Get your free estimate today.