Chimney Liners: Get Your Money’s Worth

No matter what heating appliance you have, your liner will need repaired or replaced during its lifetime. Here’s why:


Oil and Gas Furnaces and Boilers

Oil and gas systems produce corrosive gasses that deteriorate the original masonry liners. Technicians may suggest aluminum liners, as this is standard procedure for any new gas heating appliance. However, aluminum liners tend to wear out in 10 – 15 years, meaning you must replace it or risk a home fire. When you do get a new flue installed, our team will make certain that it is done properly with the top, middle and bottom being replaced (as the manufacturer intends).

*If you have an aluminum liner that is older than 2005 then you need to get it replaced ASAP*

Instead, you should consider a stainless steel liner. Unlike aluminum liners, they are resistant to the corrosion that occurs from combustion and often come with a transferrable “forever” warranty.

Chimney Liners for Your Traditional Chimney

Most masonry chimneys in Delaware County are constructed with an inner liner of clay tiles. The purpose of the liner is to keep the heat and flue gases contained inside of the chimney and vent them the outside. This prevents the heat and flue gases from coming into contact with the masonry walls of the chimney or nearby combustibles like the framing or walls within your home.

So, it’s important? 

A liner’s main function is to prevent a fire from occurring inside your chimney while also preventing your masonry and surrounding materials from getting damaged. This is imperative since the rest of your home is made from combustible materials that can go up in flames in seconds. Therefore, if your liner is damaged or needs replacing, we recommend that you do not wait and to not use your appliance until you have it replaced.



When having a new liner installed, there are several things that you need to consider:

  • What type of flue liner will you need? The quality and durability of chimney liners varies greatly, and not all metals are approved for use with all fuel types. For example, aluminum liners are only approved for use with certain types of gas appliances (not all), and cannot be installed in a flue that previously vented an oil appliance (like an oil furnace or boiler). These liners are also easily damaged during installation, especially if the chimney has an offset or long run. Stainless steel liners are a much better choice but make sure that the liner being installed is UL listed, not just “tested to UL standards.” You’ll also want to make sure it carries a transferable lifetime warranty and that all of the required components are being installed, not just the liner itself.
  • What size will you need? Proper sizing is key to the safe and efficient function of a flue liner, which is why all chimneys have sizing requirements that must be met according to the International Residential Code (IRC). An incorrectly sized liner can lead to excessive creosote buildup in wood-burning stoves and fireplaces, performance problems, and the production of carbon monoxide with conventional fuels. Unfortunately, many companies simply install whatever size liner they have in stock or whatever they can make fit, regardless of whether or not it’s the proper size for the attached appliance.
  • Who should perform your chimney relining? There are a lot of specialty skills and tools needed to perform a proper chimney relining and proper venting of appliances is crucial, which is why it should be done by a qualified chimney professional. The CSIA- certified chimney sweep credential is a good minimum standard to consider when looking for someone to do work on your chimney. In fact, some warranties even require that the installation and annual inspection be performed by a CSIA-certified chimney sweep. You’ll also want to look for other industry credentials, proof of liability insurance, and a valid Pennsylvania Home Improvement Contractor’s License.
They were on time and very professional. They install a chimney liner, and water heater flu vent and the job was very professional. The furnace and water heater are working great and I feel a lot safer in the house now. I highly recommend this company.
Charles P.

When I moved into my new home I had Lou Curley come out to inspect my chimney. He told me I needed a liner as my chimney didn’t have one. While talking I mentioned that I planned to replace my furnace in the next year and he suggested I wait to install a liner as they are not one size fits all. When my furnace was replaced he came out to install the new liner. He saved me a ton of money by not having to do the job twice.
He is professional, extremely knowledgeable, and very friendly. I would recommend him the anyone looking for chimney cleaning or repairs.
Sue O.

Why Schedule With Us?

We want you to feel comfortable with your fireplace system and the company you hire to work on it. Avoid feeling unsafe after DIY fixes or common mistakes by hiring a 5-star team!

As a company, we strive to provide the best possible service to each and every customer, each and every time. There are several different nationally recognized certifications available in the chimney and venting industry, and we’re the only company in Pennsylvania to have earned all of them.

If you live in the Philadelphia area and you’re looking for a trustworthy and experienced company to sweep, inspect, or repair your chimney system, look no further.

Book services now and:

  • Live in a safe home
  • Know your appliances are working at their best
  • Save money on costly repairs
  • Work with a reliable team that you can count on for the best possible service

We know what it feels like to be unsure if your fireplace is unsafe for use, which is why our customers’ safety and satisfaction are of utmost importance to every member of our team.