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Guaranteed Services

To truly enjoy a fireplace, you have to have confidence in the fireplace and the chimney system. When you know that the entire system has been built correctly, maintained properly and, when needed, repaired properly, a fireplace can be a wonderful addition to your home. Guaranteed Chimney Service’s aim is to provide you with that confidence and peace of mind, whether we’re building your system, repairing it, or maintaining it.

We can handle any chimney or fireplace need you have, from installing a new fireplace or repairing a chimney crown, to conducting your annual chimney cleaning and inspection. Give us a call — Guaranteed Chimney Service will provide chimney service you can trust, guaranteed.

Guaranteed Chimney Service Chimney And Fireplace Services

Chimney Sweeping
Regular chimney sweeping ensures that your chimney system is free of dangerous creosote, and allows chimney technicians to provide a thorough and complete chimney inspection, without missing damage and deterioration hidden by soot and debris. Guaranteed Chimney Service’s technicians can provide chimney sweeping services for wood-, pellet-, oil- and gas-burning appliances, and can safely and thoroughly free your chimney of hard-to-remove glazed creosote.

Chimney And Fireplace Inspections
Keeping a safe and efficient chimney means keeping up with regular maintenance requirements, including annual chimney and fireplace inspections. Having an inspection done every year will help identify budding or new problems while they’re small, before big headaches and costly repairs are unavoidable.

Smoking And Draft Problems
A chimney isn’t just a tall stack of bricks — there’s a science to the way chimneys are designed and the way that they work to vent the byproducts of combustion. When something isn’t right—there’s smoke billowing into the room, or the chimney’s not drafting properly — it takes an understanding of the physics behind how a chimney works to fix it. Guaranteed Chimney Services’s technicians know chimneys inside and out. We can figure out the cause of your issues and correct them in no time.

Chimney Repairs And Masonry
When the need for chimney or fireplace repairs come up, you can count on Guaranteed Chimney Service to provide workmanship that’s aimed at the long term, not just a quick fix. Our technicians are skilled at all kinds of chimney and fireplace masonry work, including firebox and chimney crown repairs and rebuilds.

Chimney Relining
If your flue liner is damaged (or worse, missing altogether), we also regularly reline wood-burning and oil/gas-burning chimneys. Our technicians can discuss the different flue liner options with you, and help you make the best choice for your system.

Chimney Leaks And Waterproofing
Guaranteed Chimney Service can take care of any water-related issues that might spring up in your system, including finding and repairing chimney leaks, applying a waterproofing sealant to your masonry chimney, and installing or repairing chimney flashing.

Chimney And Fireplace Installations
If you’re in the market for a new appliance or chimney system, Guaranteed Chimney Service would love to help. We build and install masonry and pre-fabricated fireplaces and chimneys, and can even install refractory fireplaces, which offer a mix of the benefits of both masonry and factory-built units. We also regularly install and replace chimney caps and energy top dampers. Just let us know what you need!

Guaranteed Chimney Service technicians can help you with all of your chimney and fireplace service needs. Give us a call today to schedule your appointment!


People who know about us call on Guaranteed Chimney Service again and again for their chimney and fireplace system needs. We look forward to serving you soon.

Certifications/ Associations

Why Choose Guaranteed?

  • Expertise - This is what we do! We focus 100% of our business on all things chimney related. You could even say we are "chimney geeks".
  • Safety, Safety, Safety! - Your safety is our number one priority. We take no shortcuts. We're your neighbors! The owner and crew live, work and play in Eastern Long Island.
  • CSIA Certified Technicians - You get the guys who know right from wrong. Our technicians have been educated, tested and certified by the Chimney Safety Institute of America. There's more to a simple chimney sweep than meets the eye. An educated technician can spot a potential problem and recommend the correct repair - not just sell you something you don't need.
  • Reliable - we keep our appointments. We know your time is valuable. When you schedule an appointment with us, we show up! If unavoidable changes happen, we'll call you.

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