Licensed and Insured
Certified Chimney is fully licensed and insured, giving you peace of mind with every service across Long Island, NYC, and Westchester County.
Certified Experts
Our highly trained, certified chimney technicians uphold the highest standards of safety and quality on every project.
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We prioritize your satisfaction, offering personalized service and expert attention to keep your chimney in top condition.
The first time I visited a home in Nassau County for what the homeowner called “a quick chimney sweep,” the real issue was hiding in plain sight. Their heating system was running fine, but every time the oil-fueled appliances kicked on, the basement smelled sharp and dusty. It wasn’t a dramatic failure. It was that slow, stubborn buildup that makes your home feel “off” without knowing why.
If you live anywhere in New York, especially across Nassau County and Suffolk County, staying on top of oil chimney cleaning and routine chimney care is one of the easiest ways to prevent carbon monoxide leaks, reduce energy waste, and protect your home from avoidable damage. At Certified Chimney NY, we provide full Chimney Sweepings & Inspections, chimney repairs, and venting system maintenance built for real-world New York winters.
A fireplace gets most of the attention, but oil systems are the quiet workhorses in many New York homes. Your oil or gas boiler/burner flue carries hot flue gases out of the home every time the unit runs. Over time, those gases leave behind acidic deposits that can wear down your venting system like rust on a car you never wash.
This isn’t just about cleanliness. It’s about safety hazards, performance, and protecting your home.
The National Fire Protection Association recommends having chimneys, fireplaces, and vents inspected at least annually, and cleaned as needed for safety. You can read that guidance directly from the NFPA inspection recommendations.
If your chimney is connected to a furnace burner or boiler flue, the issues can build slowly. Many homeowners in places like Oyster Bay or homes influenced by older New England style construction do not notice a problem until there’s a smell, a draft change, or staining on masonry.
Wood systems create creosote buildup, while oil appliances often leave more corrosive residue. Both can lead to performance issues and long-term damage.
The EPA Burn Wise program emphasizes that annual inspection helps reduce risk and supports better performance, especially for systems used heavily during cold months.
Here are a few signs we hear all the time, especially in winter:
These issues can contribute to indoor air problems and increase risk of a house fire when maintenance is ignored.
A proper chimney inspection is not just someone shining a flashlight upward and guessing. We take chimney safety seriously, which means checking the full venting system, not only the visible areas.
The Chimney Safety Institute of America (CSIA) explains why hiring a trained professional matters, and what it means to be a certified sweep. Learn more directly from the CSIA certification standards.
For many systems, we recommend a camera inspection or video camera inspection, especially when:
This helps us evaluate the flue liner, masonry condition, and internal surfaces without relying on assumptions.
A full chimney service plan should include more than a sweep. Think of it like maintaining a car. Cleaning is your oil change. Repairs are what keep the engine from failing later.
Our chimney sweeping services can include:
If your home has a tile roof, asphalt roof, or metal roof, we also consider roofline access and water pathways to prevent future water intrusion from flashing or crown damage.
Homeowners ask these questions constantly, and they’re fair questions.
Most homeowners should schedule oil and gas flue cleaning at least once per year, especially before winter. Annual maintenance helps prevent buildup, draft issues, and unexpected breakdowns during peak heating months.
Most appointments fall within one to two hours depending on access, buildup level, and whether you include a video camera inspection.
The CDC carbon monoxide safety guidance strongly recommends proper venting and annual servicing of fuel-burning appliances. It’s worth reviewing their carbon monoxide prevention basics for homeowners.
If you want a licensed and insured team that treats chimney safety like it matters, Certified Chimney NY is here to help. We serve homeowners across New York, including Nassau County and Suffolk County, with chimney cleaning, chimney inspection, stainless steel liner solutions, and chimney repairs that improve safety, comfort, and heating efficiency.
Whether you run a boiler flue, a wood-burning stove, or a mixed venting system, we’ll help you get through winter with a cleaner chimney and a safer home.
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Chimney Cleaning – $99.99 per flue