Alligator Chimney LLC provides chimney sweep services in Denver, including full-service chimney sweeping, masonry chimney restoration, chimney liner 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 Denver and nearby areas.
A Denver chimney sweep isn’t just about removing soot—it’s about eliminating hidden dangers like creosote buildup, which can ignite and cause catastrophic fires. Our white-glove process starts with a pre-inspection to identify cracks, blockages, or animal nests that could compromise safety. Using industry-leading brushes and HEPA vacuums, we clear every flue passage, smoke chamber, and damper, leaving your chimney as pristine as the day it was built. We also apply a protective sealant to masonry to slow weathering from Denver’s freeze-thaw cycles. Homeowners notice immediate improvements in draft and air quality, with no lingering odors or dust in living spaces. Expect a thorough sweep that meets CSIA standards—guaranteed.
Request this service →Denver’s historic neighborhoods like Capitol Hill and Park Hill feature stunning brick chimneys that deserve preservation—not replacement. Our masons specialize in tuckpointing, crown repair, and repointing to restore structural integrity without sacrificing aesthetics. We diagnose moisture damage from Denver’s humid summers and icy winters, then apply breathable, waterproof coatings to prevent future deterioration. Unlike patchwork repairs, our work blends seamlessly with original masonry, preserving your home’s character while ensuring safety. We also inspect flue liners for cracks that could leak carbon monoxide—a silent threat in older Denver homes. With a lifetime warranty on our craftsmanship, your chimney will stand strong for generations.
Request this service →A damaged or missing chimney liner is a ticking time bomb, especially in Denver’s high-altitude climate where draft issues are common. We install stainless steel liners tailored to your fireplace’s size and fuel type, whether it’s wood, gas, or pellet. Our liners prevent heat transfer to combustible walls, reduce creosote buildup, and improve efficiency by up to 30%. We also repair cracked clay tiles and reline existing chimneys without the cost of full rebuilds. Homeowners in Cherry Creek and Wash Park trust us to solve draft problems that other sweeps overlook. Every installation includes a CSIA-certified inspection and a 10-year manufacturer warranty.
Request this service →Denver’s unpredictable storms—from hail to sudden downpours—can turn a minor chimney leak into a major repair. Our custom chimney caps block debris, pests, and water while allowing proper airflow. We use high-quality, UV-resistant sealants to waterproof masonry, preventing the freeze-thaw damage that plagues Front Range chimneys. Unlike cheap caulk jobs, our waterproofing penetrates deep into the brick, creating a breathable barrier that won’t trap moisture. We also install spark arrestors to protect your roof from stray embers. With our 5-year workmanship warranty, your chimney stays dry and safe year-round.
Request this service →Not all chimney inspections are created equal—especially in Denver, where altitude and seasonal temperature swings stress flues. Our Level 2 CSIA-certified inspections include a video scan of your flue, smoke chamber, and chimney crown, revealing hidden cracks, corrosion, or obstructions. We check for creosote glazing (a common issue in high-altitude fireplaces) and test draft performance to ensure your fireplace operates safely. Homeowners receive a detailed report with photos and repair recommendations, so you’re never left guessing. Whether you’re buying a home in Stapleton or selling one in RiNo, our inspection meets real estate requirements and gives you peace of mind.
Request this service →Gas and pellet fireplaces require annual servicing to prevent carbon monoxide leaks—a silent risk that’s all too common in Denver’s tightly sealed homes. We clean burners, inspect venting systems, and test ignition components to ensure your appliance runs at peak efficiency. Our technicians also check for rust in the venting pipes, a frequent issue in Colorado’s dry climate. Unlike wood-burning systems, gas fireplaces need specialized tools to clear soot from the pilot assembly and burner ports. We leave your fireplace spotless, odor-free, and ready for the next cozy evening. Servicing includes a free carbon monoxide test and a 1-year warranty on parts.
Request this service →Fast response, upfront pricing, and workmanship guaranteed. Get your free estimate today.