Chimney Lining & Flue Installation

Chimney Lining

Incendiums bread and butter, so to speak, our expert installers fit stoves & flexible flue liners in existing fireplaces on a daily basis. Our installations include all the materials required for the job and even the pre installation chimney sweep, making us a one stop shop, so you don’t have the aggravation of having to contact anyone else.

The installation process involves dropping a flexible flue liner down the chimney with a cowl being attached to the chimney pot. A steel plate is installed inside the top of the fireplace to close it off and the flue is then attached to the stove with a ridged piece of flue pipe from the plate down. We use ladders for 98% of our installations, saving you the cost of scaffolding or a cherry picker to gain access to the chimney.

After installation, once the flue and carbon monoxide alarm have been tested, we then run you through the installation with a detailed guide on how to use your new wood burning or multi fuel stove. You will then be provided with Hetas certification of the work undertaken.

Incendium isn’t affiliated with any of the manufactures, and as such, we don’t try to pursued you to have a certain stove, we simply provide you with all the relevant information for you to make your own informed decision on the best stove for your needs. Although we are able to supply you with most of the stoves on the market, we are also happy for you to supply your own, providing it meets current standards.






Twinwall Flue Installations

Twinwall flues are used where there is no existing chimney to line. They are increasingly more popular not only because of how modern these installations can look, but also sadly, as most new build properties no longer include a traditional fireplace and chimney. The versatility of twinwall flue systems means that wood burning and multi fuel stoves can now be installed nearly anywhere in your home.

A twinwall flue consists of rigid insulated sections that lock together to create the flue. The advantage of the insulation in the flue, not only helps keep the flue gasses warm so they exit the flue rather than solidifying inside it, but also with their incredibly short distance to combustibles, can now even pass through wooden structures safely.

Twinwall flues can either be installed internally through the rooms above and roof, or more commonly, out and up, which as the name suggests, goes out of the wall where the stove is situated and up along an exterior wall. The out and up method is preferred as it takes up less of the normally precious space in the rooms above and causes minimum disruption. All of the options will be discussed with you during a free home survey.

Twinwall flue systems come in either stainless steel or black and are normally 7 or 8 inches wide externally. The size of the flue is dictated by your choice of stove. As with all our installs, once the installation is complete, the flue and carbon monoxide alarm will be tested, we then run you through the installation with a detailed guide on how to use your new wood burning or multi fuel stove and provided you with Hetas certification of the work undertaken.

After all the work is complete we will provide you with an end of installation guide which covers everything we go over with you during the handover, so you can refer back to it at your leisure. If requested, we will also add you to our sweep and service database, which will send out a reminder each year for your annual chimney sweep and service to keep your installation working at its best and home insurance up to date.

We pride ourselves not only on our fantastic workmanship, but also our impeccable communication, and as such will keep you updated throughout the whole process. If you would like more information about our stove installation and chimney lining service, or our twinwall flue systems, please don’t hesitate to contact one of our friendly team by phoning 01603 952878 or by emailing

Frequently Asked Questions

Brick chimneys are great when they are first built, however unfortunately throughout the years, from normal use, frequent chimney sweeps and just general ageing, the flue start to degrade. The most common problem we find is when the mortar joints between the bricks perishes and intern, lets smoke leak though them. You might think this isn’t to bad if the smoke is escaping outside, but in most cases, it is also passing between not only the flues in your own house but potential any neighbouring properties as well. It is for this reason, inline with hetas, we strongly recommend a liner with your installation. Lining the chimney means that the flue is sealed the whole way from the top of your stove, right up to the chimney pot outside. Not to mention the benefits of stopping tar from staining your chimney breast and even more importantly, increasing the efficiency of your wood burning or multi fuel stove.

A cowl is the incorporation of a chimney hat, which stops most weather from getting down your flue, with a bird guard, which stops most of the wildlife from making its home in your nice warm flue. Chimney cowls are used as standard for all of Incendiums installations, with the exception of thatch properties which can only have a suitable bird guard fitted.

No flue? No problem! WIth the advancement of twinwall flue systems, you can now have a wood burning or multi fuel stove fitted nearly anywhere in your home.

HETAS, Heating Equipment Testing and Approval Scheme, are the recognised governing body for solid fuel & biomass installations. Having your new wood burning or multi fuel stove installed by a hetas registered installer like ourselves, means that there is no need to contact building control to have your installation signed off.

In most cases yes! More often that not, the existing fireplace is perfectly suitable to go straight in with our stove installation and chimney lining service. On some occasions, a certain amount of build work is required to make the fireplace suitable for a stove. Incendium undertakes all it’s build work in house by the same team that will install your new stove. Please see our fireplace remodelling page for more information.